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.

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.

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.

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.

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.

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.

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.

Council meeting Penrith and Liverpool landowners

Penrith and Liverpool 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.

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.

Transport and employment growth context

Penrith and Liverpool 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.

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.

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