Granny Flats Ipswich – City Council Rules, Approvals, Costs & Site Requirements
If you're researching granny flats in Ipswich, the first step is understanding what your property can support under Ipswich City Plan 2025. Lot-size-based secondary-dwelling limits, overlays, setbacks, infrastructure, parking and building-location controls can all affect the design and approval pathway.
We specialise in custom on-site granny flats and detached extensions, designed around the property, the people who will use the space and the planning, building and site requirements that apply across Ipswich City Council.
Ipswich City Council Granny Flat Quick Facts
These quick facts are a practical starting point only. Ipswich City Plan 2025, the Queensland Development Code (QDC), the National Construction Code (NCC), infrastructure, overlays and property-specific approvals can change the outcome for an individual site.
🎯 Secondary dwelling size without planning approval: Over 450 m² to 600 m²: up to 60 m² GFA; over 600 m² to 800 m²: up to 90 m² GFA; over 800 m²: up to 120 m² GFA, subject to the other accepted-development requirements.
Lots 450 m² or less: Council’s public accepted-development size table starts above 450 m². A lot of 450 m² or less needs a site-specific City Plan assessment before a secondary dwelling size or approval pathway is assumed.
Detached extensions: Can be an alternative where a self-contained secondary dwelling is not the most suitable solution. Different planning and building requirements may apply.
✅ Building Approval required: Yes. Most new domestic building work requires building approval, which can be obtained through Council certification or a private building certifier.
🤷 Development Approval required: Not always. Ipswich City Council removed the need for planning approval in most instances where a secondary dwelling complies with the Ipswich City Plan 2025 requirements. Overlays, character controls or non-compliance can trigger assessment.
Plumbing approval: Yes for new plumbing and drainage work. Secondary dwellings not separately connected to water and sewer are excluded from Council’s fast-track plumbing stream and generally use the standard permit pathway.
Infrastructure charges: May apply depending on the development and servicing pathway. Council’s current charges framework is the Ipswich Adopted Infrastructure Charges Resolution (No. 1) 2025, and Urban Utilities levies water and sewer charges separately.
Typical QDC front setback – 450 m²+ lot: 6.0 m under QDC MP1.2 where the City Plan or an existing approval does not prescribe an alternative. Streetscape and neighbouring-dwelling provisions can change the road setback.
Typical QDC side / rear setback – 450 m²+ lot: 1.5 m for the relevant part of a building up to 4.5 m high; 2.0 m for parts over 4.5 m and up to 7.5 m. Narrow-lot concessions can reduce these clearances.
Corner blocks: Special road-frontage and sight-line provisions apply. On 450 m²+ lots the QDC generally starts at 6.0 m to road frontages, with a Table A1 concession possible on the nominated frontage where average lot depth is 24 m or less.
Siting caution: Ipswich City Council states that buildings and structures are generally to be positioned in accordance with Ipswich City Plan 2025. Preliminary building approvals and building location envelopes can also affect siting.
Separation from existing home: 1.8 m is an important NCC fire-separation threshold between Class 1 buildings on the same lot. Closer separation can be possible where the relevant walls and openings satisfy the NCC fire-resisting provisions.
Parking: Council confirms car-parking requirements must be met. The exact number and layout should be checked against the current City Plan and QDC requirements for the individual property.
Can the granny flat be rented?: Yes. Any person can occupy an Ipswich secondary dwelling. Queensland rules allow a lawful secondary dwelling to be rented to someone who is not related to the occupants of the main dwelling.
✅ Typical Building Approval time – Hive guide: Approximately 2–8 weeks for a typical project. Planning, infrastructure, setback or specialist referrals can extend this timeframe.
Typical construction time – Hive guide: Approximately 5–7 months after approvals, depending on project size, site conditions and the appointed builder’s program.
Common site constraints: Sewer, stormwater, easements, flood and overland flow, difficult topography or landslide, bushfire, biodiversity, character controls, access, soil conditions and building location envelopes.
💡 Best first step: Book Your Complimentary Site Assessment before committing to detailed plans.
Do You Need Council Approval for a Granny Flat in Ipswich?
A new secondary dwelling in Ipswich requires building approval and plumbing approval for new plumbing and drainage work. Planning approval has been removed in most instances where the proposal complies with Ipswich City Plan 2025, but non-compliance, zoning or overlays can still trigger assessment.
Lot-size-based GFA thresholds, infrastructure, building location envelopes, flood, character, difficult-topography and parking requirements should be checked before detailed design begins.
Related guide: Granny Flat Approval Process – From Site Assessment to Construction
Why Choose Hive Small Homes for Your Ipswich Granny Flat?
Every property is different, so we start by understanding your site, your budget and what you want to achieve. Rather than trying to fit every client into a standard design, we consider the available space, access, setbacks, services, zoning, overlays and other constraints before recommending the most suitable approach.
If you are comparing granny flat builders in Ipswich, it is important to understand how the project is delivered. Hive Small Homes coordinates the preliminary assessment, concept design, working drawings, engineering and approval process; construction is undertaken by the appointed independent licensed builder under the homeowner's building contract.
Our process includes:
Preliminary site and planning assessment
Indicative Quote
Custom concept floorplans
Soil testing and consultant coordination
Working drawings and engineering
Building and plumbing approval coordination
Detailed pricing before construction
Construction through the appointed independent builder
Clear communication throughout the pre-construction process
Ipswich City Council Granny Flat Rules – What You Need to Know
Under Ipswich City Plan 2025, a secondary dwelling is a smaller dwelling on the same lot as the primary dwelling. It remains subordinate to the primary dwelling, may be occupied by any person and cannot be separately titled.
The current accepted-development size thresholds are based on lot area. If the other planning requirements are met, the following secondary dwelling sizes can be achieved without planning approval:
Over 450 m² and up to 600 m²: Up to 60 m² GFA
Over 600 m² and up to 800 m²: Up to 90 m² GFA
Over 800 m²: Up to 120 m² GFA
These figures are not a guarantee that every property can accommodate that floor area. Setbacks, building height, car parking, overlays, infrastructure, existing approvals and the available building area still need to be checked.
💡 Current planning scheme status: Ipswich City Plan 2025 took effect on 1 July 2025. Amendment Package 1 was incorporated into Version 2 from 1 July 2026. As at 28 August 2026, Version 2 remains the current scheme and this page has been checked against it.
Do I Need Development Approval?
Not necessarily. Ipswich City Council states that planning approval has been removed in most instances where a secondary dwelling meets the current planning requirements. A planning application can still be triggered where the proposal does not satisfy the accepted-development criteria or where zoning, overlays or other site-specific provisions make the work assessable.
Examples from Council’s 2025–2026 development register show secondary dwellings requiring assessment where properties are affected by the Flood Risk and Overland Flow, Difficult Topography and Landslide, or Character Places and Areas overlays. This is why the individual property needs to be checked before a design is finalised.
Building Approval
Yes. Ipswich City Council advises that a Development Permit for building work is required before starting most domestic construction. Building approval can be obtained through Council’s certification service or a licensed private building certifier. The certifier assesses the project against the Building Act, NCC, QDC and any relevant planning-scheme building provisions.
Plumbing Approval
New secondary dwellings generally involve permit work for plumbing and drainage. Ipswich City Council has fast-track and standard plumbing assessment streams. Secondary dwellings that are not separately connected to water and sewer are specifically excluded from the fast-track stream and generally fall into the standard application pathway.
Council lists a standard plumbing approval timeframe of 10 business days where all mandatory information is provided. If the property is unsewered, an on-site wastewater design is also required.
Parking
Ipswich City Council confirms that car-parking requirements form part of the secondary-dwelling rules. The exact requirement should be checked against the current Ipswich City Plan 2025 and any applicable QDC siting provisions for the individual lot, because frontage, access, lot type and development configuration can affect the required outcome.
Infrastructure Charges
Infrastructure charges may apply where development creates additional demand on trunk infrastructure and a charge is lawfully levied. Ipswich City Council’s current adopted charging framework is the Ipswich Adopted Infrastructure Charges Resolution (No. 1) 2025. Urban Utilities separately plans and charges for water and sewer infrastructure.
Whether a particular secondary dwelling attracts a Council or Urban Utilities charge depends on the approval and servicing pathway, so the charge position should be confirmed for the individual project rather than treated as a universal granny-flat fee.
Setbacks and Building Siting
Ipswich City Council states that buildings and structures are generally to be positioned in accordance with Ipswich City Plan 2025, and that preliminary building approvals or building location envelopes may affect a property. The QDC provides the standard state siting benchmarks where the planning scheme or an existing approval does not provide an alternative requirement.
The Queensland Housing Code transition commenced on 1 September 2026. Existing local-government planning-scheme siting provisions can continue during the transition until Council specifies how the Code applies, or until 1 September 2029, whichever occurs first. Ipswich City Plan 2025 Version 2 and any applicable alternative provisions therefore remain important for the individual property.
Standard lot – 450 m² or more
Front / road: 6.0 m, subject to neighbouring-dwelling streetscape provisions
Side: 1.5 m up to 4.5 m high; 2.0 m over 4.5 m to 7.5 m
Rear: Same as side
Corner / important note: QDC MP1.2 starting point where Ipswich City Plan / an existing approval does not prescribe an alternative.
Corner lot – 450 m² or more
Front / road: Generally 6.0 m to road frontages
Side: 1.5 m / 2.0 m to non-road boundary depending on height
Rear: Same as side
Corner / important note: If average lot depth is 24 m or less, the nominated frontage may use QDC Table A1; the other road frontage generally remains 6.0 m. A 9 m × 9 m corner truncation applies.
Lot under 450 m² – QDC baseline
Front / road: 3.0 m access place/access street; 4.0 m collector street
Side: Generally 1.5 m up to 4.5 m high, subject to narrow-lot provisions
Rear: Same as side
Corner / important note: Ipswich City Plan 2025 and any building location envelope must still be checked before relying on the generic QDC figures.
Corner lot under 450 m² – QDC baseline
Front / road: 3.0 m access street or 4.0 m collector street
Side: Generally 1.5 m to non-road boundary, subject to narrow-lot provisions
Rear: Same as side
Corner / important note: 1.0 m to corner-side access street or 2.0 m to corner-side collector street under QDC MP1.1; City Plan / existing approvals may alter this.
Standard Lots – 450 m² or More
Under QDC MP1.2, the normal minimum road setback for a detached dwelling is 6 m. Where there are existing dwellings on both adjoining lots, the QDC can allow the road setback to respond to the neighbouring streetscape rather than always using a simple 6 m line.
For side and rear boundaries, the standard QDC clearance is 1.5 m where the relevant part of the building is 4.5 m high or less. It increases to 2 m where that part is higher than 4.5 m but not more than 7.5 m. Above 7.5 m, the clearance increases by a further 0.5 m for every additional 3 m, or part of 3 m.
For rectangular or near-rectangular lots with a frontage of 15 m or less, both MP1.1 and MP1.2 contain reduced side and rear clearances based on the actual frontage and building height. These narrow-lot provisions should be checked before assuming that 1.5 m applies.
Corner Blocks
Corner lots need special attention because two boundaries adjoin roads. For a lot of 450 m² or more, the QDC MP1.2 starting point is generally 6 m to each road frontage. Where the lot has an average depth of 24 m or less, the local government-nominated road frontage may use the reduced setback shown in QDC Table A1, while the other road frontage generally retains the 6 m setback.
The QDC also prevents a building or structure more than 2 m high from being built within a 9 m × 9 m truncation at the corner of the two road frontages. For lots under 450 m², QDC MP1.1 provides a baseline of 3 m to an access street with 1 m to the corner-side street, or 4 m to a collector street with 2 m to the corner-side street.
Separate QDC visibility controls limit fences, screens, retaining walls and other structures to 1 m high within the corner sight-line truncation formed by three equal chords of a 6 m radius curve. Ipswich City Plan 2025, a preliminary building approval or a building location envelope can still alter the practical siting outcome.
How Setbacks Are Measured
QDC setbacks are measured horizontally from the outermost projection of the building or structure to the property boundary. For a roof, the outermost projection generally means the outside face of the fascia, or the roof structure where there is no fascia, rather than simply the external wall.
Separation from the Existing Dwelling
There is not one universal minimum separation that applies to every secondary dwelling and existing house. Fire separation under the NCC is an important part of the design.
Under NCC 2022 Housing Provisions Part 9.2, an external wall of a Class 1 building and its openings must satisfy the fire-resisting provisions where the wall is less than 1.8 m from another building on the same allotment, other than an associated Class 10 building or a detached part of the same Class 1 building.
This makes 1.8 m an important design threshold, not an absolute rule that the buildings can never be closer. A closer arrangement may be possible where walls, openings, eaves and other elements are designed to comply with the applicable NCC fire-separation requirements. The private building certifier should confirm the final requirement.
Common Site Constraints
A property can meet the basic size and setback rules and still have other constraints that affect the building location, engineering, approval pathway and final cost. Common Ipswich issues include:
Sewer and water infrastructure – Urban Utilities is the relevant service provider for water and sewer. Building over or near assets must be assessed against QDC MP1.4 and may require an Urban Utilities referral.
Stormwater infrastructure – Ipswich City Council remains the referral agency for stormwater drains under QDC MP1.4 where the acceptable solutions are not met.
Easements – building over an easement requires written consent from the registered easement holder, and the easement can restrict the available building area.
Flood Risk and Overland Flow Overlay – can trigger planning assessment, floor-level, hydraulic, earthworks or design requirements.
Difficult Topography and Landslide Overlay – can trigger geotechnical or planning assessment and may affect footing systems and earthworks.
Bushfire Prone Areas Overlay – can affect planning and building requirements on bushfire-prone sites.
Biodiversity and waterways / wetlands controls – can restrict clearing, earthworks and the location of development.
Character Places and Areas Overlay / Character Residential Zone – can make otherwise straightforward secondary dwelling building work assessable against the planning scheme.
Building location envelopes or preliminary building approvals – can impose property-specific siting and access constraints that run with the land.
Sloping sites and retaining walls – can increase excavation, retaining, access and structural-engineering requirements.
Narrow or restricted access – can affect excavation methods, plant access, material handling and construction cost.
Soil conditions – reactive or poor soils can require upgraded footings after the soil test.
On-site wastewater – unsewered properties require an on-site wastewater facility design as part of the plumbing application.
Additional Approval Requirements
Depending on the property and design, additional referrals or approvals may include:
Build Over / Near Water or Sewer – Urban Utilities referral where work does not comply with QDC MP1.4 acceptable solutions.
Build Over / Near Stormwater – Ipswich City Council referral where proposed work near Council stormwater does not comply with QDC MP1.4.
Boundary setback relaxation / siting variation – where a building proposal does not meet an applicable QDC, City Plan or existing siting requirement.
Planning approval – where the secondary dwelling is not accepted development or overlays / zone provisions trigger assessment.
Character assessment – where the Character Residential Zone or Character Places and Areas Overlay applies.
Flood or overland-flow assessment – where the current Ipswich City Plan flood overlay triggers assessment benchmarks.
Difficult topography / landslide assessment – where mapped slope or landslide risk applies.
Bushfire, biodiversity, waterway or vegetation assessment – where the relevant overlay affects the site.
On-site wastewater approval – for unsewered properties.
Identifying these requirements before detailed design can reduce the risk of redesign, consultant delays and unexpected costs.
Granny Flat or Detached Extension – Which May Be Better?
A secondary dwelling is not always the most suitable solution. If the objective is to add bedrooms, a home office, guest accommodation, a hobby room or extra family living space, a detached or linked extension may provide a better outcome for the property and intended use.
The two options should not be treated as having identical planning or building rules. During the preliminary assessment we can consider the intended use, available building area, services, setbacks and budget before recommending the most practical approach.
Can an Ipswich Granny Flat Be Rented Out?
Yes.
Ipswich City Council states that any person can occupy a secondary dwelling. Queensland’s Planning Regulation changes that commenced on 26 September 2022 also allow a lawful secondary dwelling to be rented to anyone, regardless of whether they are related to the occupants of the primary dwelling.
The secondary dwelling must remain subordinate to the primary dwelling on the same lot and cannot be separately titled. All relevant planning, building and fire-safety requirements still apply.
Our Granny Flat Process in Ipswich
1. Preliminary Site Assessment
We review the property, planning controls, overlays and available information to identify any obvious constraints.
2. Indicative Quote
Based on the preliminary assessment and your requirements, we prepare an indicative quote to give you a clear guide to the likely project cost before moving forward.
3. Site Visit
If the indicative quote is within your budget, we arrange a site visit to look more closely at access, services, site levels and the proposed building location.
4. Concept Design
We prepare a concept floorplan designed around your property, requirements and budget.
5. Final Pricing & Contract
Once the concept design is agreed, detailed pricing is prepared and the final scope is confirmed before proceeding to contract.
6. Working Drawings, Engineering & Approvals
The project moves through working drawings, engineering and the required building and plumbing approval process.
7. Construction
Once approvals are in place, construction can commence with the appointed independent builder.
Typical Project Timeframes
The following are Hive Small Homes indicative timeframes only. They are not Ipswich City Council statutory timeframes and can vary depending on the property, consultants, approval pathway and appointed builder.
Preliminary assessment / site visit: Approximately 1–2 weeks
Concept design: Approximately 2–3 weeks
Final pricing & contract: Approximately 1–2 weeks
✅ Building Approval: Approximately 2–8 weeks
Construction: Approximately 5–7 months after approvals
Planning approval, Urban Utilities or stormwater referrals, setback variations, flood or character assessment, difficult-topography reports or on-site wastewater design can extend the approval timeframe.
Custom Granny Flat Designs for Ipswich Properties
A well-designed granny flat should feel like a genuine home rather than simply a smaller version of one. Depending on the site, applicable controls and chosen layout, designs can include:
One or two bedrooms
Open-plan kitchen, dining and living areas
Full bathroom and laundry facilities
Built-in storage
Covered decks and outdoor living areas
Energy-efficient insulation and glazing
Air conditioning and ceiling fans
Modern kitchens and bathrooms
We can adapt the concept design to suit different block shapes, site conditions, access constraints and the needs of the future occupants.
Granny Flats for Different Stages of Life
An Ipswich granny flat can provide flexible accommodation for:
Parents or older family members
Adult children wanting greater independence
Extended family
Guest accommodation
Home office or hobby space
Rental accommodation
The best design will depend on who will use the dwelling, how much privacy is required and how the new building relates to the existing home and property.
Book Your Complimentary Site Assessment
Not sure what can be built on your property?
Hive Small Homes offers a complimentary preliminary Site Assessment to help identify the planning controls, overlays, setbacks, services and potential constraints affecting your property before you commit to a design.
We review available property information to help identify zoning, overlays, underground services, building location constraints and the likely approval pathway. This gives you a clearer understanding of what may be possible before spending money on detailed plans.
September 2026 Queensland Housing Code and Energy Update
Important: the Queensland Housing Code (QHC), comprising QDC Parts 1.1 and 1.2, commenced on 1 September 2026. It replaces the 2010 QDC Parts 1.1 and 1.2 at State level, but existing local-government planning-scheme siting provisions can continue during the transition until the council amends its planning scheme to state how the QHC applies, or 1 September 2029, whichever occurs first.
For that reason, the council-specific rules and figures already set out on this page remain important. A homeowner should not assume that every new QHC setback, site-cover or secondary-dwelling size figure automatically applies to the property today. The current council planning scheme, any alternative provisions, overlays, existing approvals and the building certifier's assessment must still be checked for the individual site.
Secondary-dwelling size under the new QHC
The QHC introduces a State acceptable-solution benchmark for a secondary dwelling of up to 50 m² internal floor area on lots under 1,000 m² and up to 60 m² internal floor area on lots of 1,000 m² or more. This is an acceptable solution rather than a universal planning-scheme GFA cap, it uses the QHC definition of internal floor area rather than the council's gross floor area measurement, and adopting councils can provide alternative provisions. The existing council size rules described elsewhere on this page should therefore continue to be checked until the council's QHC transition position is confirmed.
Energy efficiency - new small-home pathway
From 14 August 2026, QDC 4.1 provides a 5-star thermal-performance pathway for eligible small homes of 50 m² or less. Most houses and townhouses otherwise remain subject to the 7-star thermal-performance requirement, while eligible raised-floor houses can use the 6-star pathway. Whole of Home energy-budget requirements also continue to apply where relevant. Eligibility should be confirmed by the energy assessor and building certifier for the proposed design.
Other matters covered by the QHC
The QHC establishes updated State design-and-siting standards dealing with matters including building height, front/side/rear setbacks, site cover, privacy, car parking and access, private open space and landscaping. During the transition, the practical requirement for a particular property may still come from the council planning scheme or an existing local alternative provision. This page therefore retains the detailed current council information rather than replacing it with a single State-wide rule.
Ipswich transition note
Ipswich City Plan 2025 Version 2 currently uses its lot-size-based secondary-dwelling framework described on this page, including the 60 m² / 90 m² / 120 m² GFA bands for qualifying lots. Those planning-scheme figures should not be replaced by the QHC's 50/60 m² internal-floor-area acceptable solution without confirming Ipswich's transition position.
Frequently Asked Questions
Can I build a granny flat on my Ipswich property?
It depends on the property’s zoning, overlays, lot size, setbacks, available building area, services and existing approvals. Many compliant secondary dwellings do not need planning approval, while some sites still require assessment.
How large can an Ipswich granny flat be?
Without planning approval, Council’s current table allows up to 60 m² GFA on lots over 450 m² to 600 m², 90 m² on lots over 600 m² to 800 m², and 120 m² on lots over 800 m², subject to the other requirements being met.
What are the typical front, side and rear setbacks?
Where QDC MP1.2 applies without an Ipswich City Plan or existing-approval alternative, a 450 m²+ lot generally starts at 6 m to the road and 1.5 m to side and rear boundaries for the part of a building up to 4.5 m high. The City Plan, building envelopes and narrow-lot provisions can change the result.
What setbacks apply to a corner block?
On a 450 m²+ corner lot the QDC generally starts at 6 m to the road frontages. If average lot depth is 24 m or less, a reduced Table A1 setback may apply to the nominated frontage. A 9 m × 9 m corner building truncation and separate sight-line controls also apply.
Do I need Development Approval?
Not always. Ipswich City Council removed planning approval in most instances where secondary dwellings comply with the current requirements. Overlays, character provisions or non-compliance can still trigger assessment.
Do I need Building Approval?
Yes. Most new domestic building work requires a Development Permit for building work through Council certification or a private building certifier.
Do I need plumbing approval?
Yes for new plumbing and drainage permit work. Secondary dwellings that are not separately connected to water and sewer generally use Council’s standard plumbing application pathway rather than the fast-track stream.
Can I rent the granny flat to someone who isn’t a family member?
Yes. Ipswich City Council states that any person can occupy a secondary dwelling, and Queensland rules allow a lawful secondary dwelling to be rented to someone outside the household.
Can I customise the design?
Yes. The concept floorplan can be developed around your property, intended occupants, preferred layout and budget rather than limiting the project to a single standard design.
Can I see completed Hive Small Homes projects?
Yes. Visit the Projects page to see examples of completed Hive Small Homes granny flats and detached-extension projects.
Can I build over a sewer line?
Sometimes. Water and sewer assets are assessed under QDC MP1.4. Urban Utilities is the referral agency in Ipswich where proposed work does not comply with the acceptable solutions.
Can I build over stormwater infrastructure?
Possibly. Ipswich City Council is the referral agency for stormwater drains under QDC MP1.4 where the acceptable solutions are not met.
What if my block slopes?
Slope does not automatically prevent a project, but the Difficult Topography and Landslide Overlay may apply and can affect planning, geotechnical work, excavation, retaining walls, footing design, access and cost.
How close can the granny flat be to my existing home?
The NCC uses 1.8 m as an important fire-separation threshold between Class 1 buildings on the same allotment. Closer separation may be possible where the relevant walls, openings and other elements satisfy the NCC fire-resisting provisions.
What if my property has an easement?
The easement should be assessed before the concept design is finalised. Building over an easement requires written consent from the registered easement holder, and the easement can restrict the available building area.
What if I have limited or narrow site access?
Restricted access does not automatically prevent construction, but it can affect excavation methods, equipment, material handling and site costs.
Do I need a soil test?
Yes. A soil test is normally required for the structural engineer to design the footing system. Ipswich Council’s plumbing checklist also requires a soil test report for permit work applications.
Will infrastructure charges apply?
They may. Council and Urban Utilities charges depend on the development and servicing pathway. The current Council framework is the Ipswich Adopted Infrastructure Charges Resolution (No. 1) 2025.
Important Information
The information on this page is intended as a general guide only. Every property is different. Zoning, overlays, easements, infrastructure, building location envelopes, preliminary approvals and existing site conditions can all influence what can be built.
For advice specific to a property, Hive Small Homes recommends completing the preliminary site assessment before committing to detailed plans or consultant work.
Official Sources Used to Verify the 2026 Rules
The following official Council, Queensland Government, utility and National Construction Code sources were used to verify the rules and requirements summarised on this page. They are published here for transparency, verification and further reading.
Sources checked: 6 September 2026. Current rules are distinguished from proposed or transitional changes. Requirements should be rechecked for the individual property before design or construction decisions are made.
Queensland Department of Housing and Public Works - Queensland Housing Code (QDC Parts 1.1 and 1.2), published 3 August 2026; transitional period commenced 1 September 2026 and ends 1 September 2029
Queensland Legislation - Building and Other Legislation Amendment Regulation 2026, including the local-government transition provisions
Queensland Government / Business Queensland - Queensland Development Code and Queensland Housing Code transitional arrangements
Queensland Government / Business Queensland - Modern Homes Standards and QDC 4.1 Sustainable Buildings, including the 5-star pathway for eligible small homes of 50 m² or less and the 6-star pathway for eligible raised-floor houses
Ipswich City Council - Housing in Ipswich / Secondary dwellings and dual occupancies
Ipswich City Council - Ipswich City Plan 2025 supporting documents and Secondary Dwelling and Dual Occupancy fact sheet
Ipswich City Council - eAlerts: Ipswich City Plan 2025 Amendment Package 1 / Version 2 effective 1 July 2026
Ipswich City Council - Building Standards, Forms and Fact Sheets / siting guidance
Ipswich City Council - Building Approvals
Ipswich City Council - Plumbing Approvals and Plumbing Frequently Asked Questions
Ipswich City Council - Build Over/Near Relevant Ipswich City Council Infrastructure
Ipswich City Council - Infrastructure Planning / Ipswich Adopted Infrastructure Charges Resolution (No. 1) 2025
Ipswich City Council - Flood Mapping / Ipswich City Plan 2025 OV12 Flood Risk and Overland Flow
Queensland Government - QDC MP1.1: Design and siting standards for single detached housing on lots under 450 m2
Queensland Government - QDC MP1.2: Design and siting standards for single detached housing on lots 450 m2 and over
Queensland Government - QDC MP1.4: Building over or near relevant infrastructure
Queensland Government Planning - Changes to secondary dwellings
Urban Utilities - Build / construction over or near pipes or easements
National Construction Code 2022 Housing Provisions - Part 9.2 Fire separation of external walls