Secondary Dwellings Allowed: Penrith, Liverpool and Western Sydney LGAs

Parts of Penrith, Liverpool, Fairfield, Camden, and Wollondilly LGAs can again host secondary dwellings up to 85 sqm within the ANEC 20–25 noise contour after NSW’s 19 can 2026 Western Parkland City SEPP amendment. For secondary dwelling penrith liverpool, Updated 25 June 2026.
The ministerial release lists all five LGAs. Yahoo Finance noted roughly 1,500 residents gain access to more housing choice in the fast-growing corridor. Tier A summary only.
Disclaimer: Not planning, legal, or tax advice. LGA boundaries are broad; contour and zoning determine eligibility lot by lot.
Penrith and Liverpool in context
Penrith and Liverpool anchor much of Western Sydney’s growth. Granny flats support multigenerational living and small-scale rental supply where compliant. The can reform removes a SEPP-level ban that blocked secondary dwellings across airport-affected land regardless of local noise level differences.
Eligible parcels must sit in ANEC 20–25, not simply inside Penrith or Liverpool postcodes. Edge lots near higher contours can remain prohibited.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Fairfield and Horsley Park
Fairfield City Council welcomed partial restoration for Horsley Park properties under the 20 ANEC corridor, noting prior restrictions affected hundreds of landowners since October 2020. Council had argued controls were disproportionate relative to expected noise.
If you are in Fairfield LGA, council’s airport planning page is a sensible first read before engaging designers.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Camden and Wollondilly
Growth areas in Camden and Wollondilly include greenfield and semi-rural lots where secondary dwellings appeal for family accommodation. Airport noise mapping still governs; rural zoning can trigger DA pathways Planning Minister Paul Scully mentioned for RU2 land on ABC.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
85 sqm cap and attenuation
Dwellings must not exceed 85 square metres and require aircraft noise attenuation measures. These sit alongside general Housing SEPP standards covered in our NSW granny flat rules guide.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
What did not change
Luddenham, Bringelly, and Badger’s Creek exclusions remain. Higher ANEC contours still block new noise-sensitive housing. Underlying lot size, setback, and servicing rules continue to apply.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Pre-lodgement checklist
Confirm contour, zone, bushfire and flood overlays if any, CDC vs DA pathway, and acoustic specifications. Engage a certifier early if marketing materials promise “automatic approval” in Western Sydney.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Penrith and Liverpool lot-level variation
Both LGAs contain growth corridors, established suburbs, and semi-rural pockets where secondary dwelling rules differ sharply. A Liverpool parcel near motorways and airport flight paths can sit in a different contour band than a Liverpool foothills lot kilometres away. Penrith’s western edges face similar patchwork mapping.
Infrastructure and servicing checks
Secondary dwellings need wastewater capacity, stormwater compliance, and driveway access that contour eligibility alone does not solve. Council engineers can flag upgrades on older lots even when Housing SEPP and airport reforms permit a granny flat in principle.
Yahoo Finance reporting noted roughly 1,500 residents gaining housing choice from the can reform. That human scale reminds owners this is targeted relief, not a blanket western Sydney free-for-all.
Multigenerational living use cases
Many eligible owners plan accommodation for ageing parents or adult children rather than immediate investment property conversion. Planning pathways still require compliant design and approval regardless of occupancy intent. This article excludes tax, financing, and rental management advice.
Compare general compliance concepts in our NSW granny flat rules pillar before engaging designers.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Council meeting Penrith and Liverpool landowners
Also,verpool councils process large volumes of secondary dwelling enquiries. Pre-lodgement meetings help when lots sit near contour boundaries or combine airport overlays with flood, bushfire, or heritage controls. Bring title searches and survey marks so staff can confirm lot identity quickly.
Do not rely on estate agent marketing claiming “granny flat approved” without contour and zone checks on your specific parcel.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Neighbour notification and construction logistics
Even compliant projects affect neighbours through access, noise, and overshadowing during build. Standard SEPP setback rules still apply alongside airport acoustic requirements. Early neighbour communication reduces complaints that delay inspections regardless of policy support for secondary dwellings.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Transport and employment growth context
Also,verpool benefit from Western Sydney infrastructure investment, making compliant secondary dwellings attractive for family accommodation near employment hubs. Planning permission does not guarantee build cost certainty. Material, labour, and acoustic product pricing still vary with market conditions in 2026.
This article excludes construction quotes, tax, and financing guidance. Use qualified professionals for those inputs.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Public transport and road upgrades
Western Sydney rail and road projects influence where families choose granny flat living relative to commutes. Planning eligibility does not encode transport convenience; buyers and owners still assess accessibility lot by lot when deciding whether to build.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Frequently Asked Questions
Is every Liverpool block eligible?
No. Only land within ANEC 20–25 and compliant with zoning and SEPP rules qualifies.
Which LGAs did NSW name?
Can I rely on this for tax planning?
No. This article excludes tax, financing, and rental advice. Speak to qualified professionals.
Confirm setbacks, fees and supplier inclusions with your council or certifier before you sign. SEPP, CDC and DA pathways differ by state, lot size and overlays such as heritage or flood. Use our planning tools for ballpark figures, then verify with a private certifier or council planner when your design is settled.
Primary sources
The Granny Flat Guide cross-checks regulation and cost summaries against official Australian references. Verify current rules with these sources before you lodge an application or sign a contract.


