What Do the New Planning Rules Mean for Your Canberra Property?

The new planning regulations have created new opportunities for many Canberra homeowners.
Every property is different.

Your suburb, zoning, block size, existing dwelling, easements, trees and site constraints all influence what may now be possible.

Your Property Potential Assessment will help you discover whether you may now be able to:

Your Property Potential Assessment will help you discover whether you may now be able to:

Key Changes to the ACT Territory Plan

The most significant planning changes affecting Canberra property owners.

Planning Change
What It Means for Property Owners
At a Glance
Subdivision on RZ1 Blocks

Subdivision on RZ1 Blocks

Many RZ1 properties may now be eligible for subdivision where both resulting blocks meet the minimum planning requirements.

RZ1 block
350m2 + 350m2

Two Separate blocks

Unit Titling

Unit Titling

Eligible RZ1 properties over 600m² may now be able to create separate unit titles, providing greater flexibility for future ownership and sales.

infographic image area
600m²+

1 Title → 2 Titles

1 Title → 2 Titles

No Minimum Block Size for Secondary Residences

The previous minimum block size requirement has been removed, creating new opportunities for many homeowners.

infographic home
No Minimum Block Size

Build a secondary residence on any sized block*

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Higher Site Coverage

Dual occupancy developments can now occupy up to 45% of the site in RZ1 and RZ2, allowing greater design flexibility on suitable properties.

Higher Site Coverage
45%

Site Coverage in RZ1 and RZ2

Site Coverage in RZ1 and RZ2

No Maximum Number of Dwellings

The previous maximum dwelling limit has been removed. Development potential now depends on zoning and compliance with the Territory Plan.

infographic houses images
No Maximum Dwellings

More flexibility for future developments*

Car Parking

Reduced Car Parking Requirements

The requirement for one covered car space per dwelling has been removed, creating greater flexibility for site design.

Car Parking infographic
Covered Car Space Requirement Remove
Updated Building & Design Controls

Updated Building & Design Controls

Changes to setbacks, overshadowing rules and building envelopes may create new design opportunities for some properties.

before after infographic
New Building Envelope Rules

More opportunities with updated controls

Want to know how the new planning rules affect your property?

Every property is different.

Receive your Property Potential Assessment, prepared using the latest ACT Territory Plan and the planning controls that apply to your property.

Tailored to the property

Prepared specifically for
your property address.

Based on current
ACT planning rules

Including the latest Territory
Plan changes.

Understand your options

Helping you understand
what may now be possible.





    Your information is private and secure.

    No spam. No obligation.

    This is not a guarantee of approval.
    Assessment is based on available information and subject to detailed planning review.

    Understand Canberra's
    New Planning Rules

    Plain English answers to the most common planning questions about dual occupancy. subdivisions, secondary residences and the Missing Middle reforms.

    350+

    Planning applications managed

    Current

    ACT planning
    legislation

    Plain English

    Clear explanations for homeowners

    Updated

    Information reviewed regularly

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    Popular Planning Questions

    Showing 43-48 of 176 planning questions

    A property must have at least one approved driveway connection to the street, but it cannot have more than two. Driveway crossings must be designed and approved to meet ACT requirements. If an old driveway is no longer needed, it must be removed and the footpath area and kerb repaired. Approval is required before adding a new driveway, changing an existing driveway, or creating a second driveway.

    Reference: Planning (Residential Zones) Technical Specifications 2026 (NI2026-303), Assessment Outcome 27.10- Planning (Residential Zones) Technical Specifications 2026

    QAIDDO205

    Last reviewed 5 August 2026

    The Planning (Residential Zones) Technical Specifications 2026 sets minimum sizes for different types of car parking spaces. A single roofed parking space must be at least 6 m long and 3 m wide, while a double roofed space must be 6 m by 5.5 m. A single unroofed space must be 5.5 m by 3 m, and multiple unroofed spaces side by side must each be 5.5 m by 2.6 m. A parallel parking space must be at least 6.7 m long and 2.3 m wide. Roofed parking spaces are measured using the internal dimensions, and there must be at least 2.1 m of clearance above the parking space. If AS 2890.1 – Off-Street Parking Facilities specifies different requirements, those standards apply.

    Reference: Planning (Residential Zones) Technical Specifications 2026 (NI2026-303), Assessment Outcome 27.7- Planning (Residential Zones) Technical Specifications 2026

    QAIDDO207

    Last reviewed 3 August 2026

    The Planning (Residential Zones) Technical Specifications 2026 limit the size of garage doors and carports that face a street. The combined width of all garage door openings or the external width of a carport must not exceed 50% of the total length of the building façade facing that street.

    This requirement is intended to ensure that garages and carports do not dominate the appearance of the home from the street. The requirement does not apply where the garage or carport faces a rear lane.

    For example, if the front of your house is 12 metres wide, the garage door or carport opening can be up to 6 metres wide.

    Reference: Planning (Residential Zones) Technical Specifications 2026 (NI2026-303), Assessment Outcome 27.6- Planning (Residential Zones) Technical Specifications 2026

    QAIDDO208

    Last reviewed 31 July 2026

    Easements, utilities, and stormwater infrastructure are checked during planning assessment to make sure a new development does not block access, damage essential services, or cause drainage problems. Easements show areas of land that must remain available for specific uses, such as utility maintenance or access. Developers must consider these areas when designing a proposal.

    Reference: ACT Government – Easements – https://www.planning.act.gov.au/community/get-to-know-your-block/surveying-a-boundary/easements

    QAIDDO294

    Last reviewed 5 August 2026

    Not always. The Planning (Residential Zones) Technical Specifications 2026 require new single dwellings, secondary residences, and most extensions or alterations to meet one of three water efficiency options:

    • Option A – Rainwater tank: The required tank size depends on the block size:
      • Compact blocks: No rainwater tank is required, but high-efficiency (minimum 3-star WELS) plumbing fixtures must be installed.
      • Mid-sized blocks: Minimum 2,000 L rainwater tank.
      • Large blocks up to 800 m²: Minimum 4,000 L rainwater tank.
      • Large blocks 800 m² or greater: Minimum 5,000 L rainwater tank.
        The tank must collect water from part of the roof and be connected to at least a toilet, laundry cold water, and external taps.
    • Option B – Greywater system: Install a Class A treated greywater system connected to toilets, laundry cold water, and external taps.
    • Option C – Water efficiency: Demonstrate that the development will reduce mains water use by at least 40% compared with an equivalent 2003 development, without relying on landscaping measures.

    So, you do not always need a rainwater tank, as long as your development meets one of the other approved water efficiency options.

    Reference: Planning (Residential Zones) Technical Specifications 2026 (NI2026-303), Assessment Outcome 19.5- Planning (Residential Zones) Technical Specifications 2026

    QAIDDO211

    Last reviewed 31 July 2026

    As per Planning (Residential Zones) Technical Specifications 2026 The ground level can only be changed by up to 1.5 metres within 1.5 metres of a side or rear boundary. This is measured by comparing the original ground level with the finished ground level after the work is completed. Excavation for a basement does not count towards this limit.

    Reference: Planning (Residential Zones) Technical Specifications 2026 (NI2026-303), Assessment Outcome 22.1- Planning (Residential Zones) Technical Specifications 2026

    QAIDDO210

    Last reviewed 31 July 2026

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    General information only. Not legal or planning advice. Always refer to the Territory Plan
    and seek professional advice for your specific situation.

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