Yes, many Hebersham properties may be suitable for a granny flat, but approval depends on the individual block. Under the NSW Housing SEPP, a secondary dwelling can qualify for Complying Development on lots of at least 450m², provided the site and design meet the required standards. Hebersham is within Blacktown City Council, with established residential areas largely characterised by low-density housing. Local property records show numerous blocks between about 550m² and 665m², although lot sizes vary and should be confirmed for each address. A granny flat is generally limited to 60m² of floor area, subject to the applicable planning controls. Before choosing a design, it is also important to check flood, overland-flow and other mapped site constraints, particularly within the wider Eastern Creek catchment, as these can affect where and how a granny flat can be approved.
Get inspiration from our recent granny flat projects across Hebersham and surrounds — and see how we’ve turned different properties into practical new spaces.
Hebersham offers a practical setting for homeowners considering a granny flat, particularly for family accommodation and future rental flexibility. In the 2021 Census, 78.7% of Hebersham households were family households, above the NSW average of 71.2%, while the suburb averaged 3 people per household. There is also a substantial rental market, with 42.5% of occupied homes rented, compared with 32.6% across NSW. With 91.7% of occupied dwellings being separate houses, suitable homeowners may have an opportunity to turn unused backyard space into independent accommodation for ageing parents, adult children or tenants. For established Hebersham homeowners, a granny flat can add useful living space now while providing greater flexibility as family and financial needs change.
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The three things that shape a granny flat build in Hebersham: the planning rules, the ground you’re building on, and what the market gives back.
Median house price in Hebersham
Typical granny flat rent
Key local landmark
your block
nearest station
A granny flat in Hebersham can be approved through a private certifier as complying development when the lot is 450m2 or larger, the secondary dwelling is no more than 60m2 (or 25% of the main house, whichever is less), and setbacks, height and landscaping meet Housing SEPP 2021 standards. This pathway typically takes 10 to 15 business days once documentation is complete. Bushfire prone land does not rule out a CDC, but the design must meet the mapped Bushfire Attack Level, so the RFS map is the first thing we check. Blocks inside a flood planning area can still qualify, but floor levels and fill must meet the council's flood controls, which we check against the flood certificate before design.
Not meeting one complying development requirement does not rule a project out. Where a block in Hebersham is under 450m2, sits in a heritage conservation area, or is affected by a flood or bushfire control, a development application can be lodged with Blacktown City Council. Assessment times are longer than a CDC, but the council does approve secondary dwellings through this route.
Hebersham is administered by Blacktown City Council and assessed under the Blacktown LEP 2015. The whole suburb falls within the one council area. Granny Flats X confirms the consent authority for your specific block during the initial property assessment.
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The things Hebersham homeowners ask us most. Can’t find yours? Call us — we’ll give you a straight answer.
Usually 12-14 weeks from approval. We fast-track the council paperwork.
Yes. Most Hebersham blocks support 60m² 2-bedroom layouts.
Yes, but we handle the entire approval process for you.
