Yes, many Kings Park properties may be suitable for a granny flat, particularly the suburb’s established homes on larger blocks. Under the NSW Housing SEPP, a detached secondary dwelling can qualify for Complying Development (CDC) on a lot of at least 450m², provided the property and design meet all relevant standards. Kings Park contains substantial R2 Low Density Residential land, where secondary dwellings are permitted under the Housing SEPP. Local property records show established Kings Park blocks around 550m², 658m² and 706m², although lot sizes vary and should always be checked individually. A granny flat is generally limited to 60m² of floor area, subject to the applicable planning controls. Before settling on a design, it is also important to check flood and overland-flow mapping, particularly around the Breakfast Creek catchment, as these conditions can affect building position and the approval pathway.
Get inspiration from our recent granny flat projects across Kings Park and surrounds — and see how we’ve turned different properties into practical new spaces.
Kings Park is well suited to homeowners who want to create independent space for family while keeping long-term flexibility in their property. At the 2021 Census, 80.5% of Kings Park households were family households, above the NSW average of 71.2%, while 92.6% of occupied dwellings were separate houses. This established, low-density housing pattern makes a granny flat particularly relevant for ageing parents, adult children or extended family where the block allows. Location is another advantage. Nearby Marayong Station provides T1 and T5 train services, connecting the area with Blacktown, Parramatta and other major Western Sydney centres. Kings Park is also close to the wider Blacktown employment area, with Blacktown Strategic Centre supporting 11,345 jobs in 2021. For homeowners thinking ahead, a granny flat can turn unused backyard space into family accommodation today, with the option for rental income or downsizing later.
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The three things that shape a granny flat build in Kings Park: the planning rules, the ground you’re building on, and what the market gives back.
Median house price in Kings Park
Typical granny flat rent
Key local landmark
your block
nearest station
A granny flat in Kings Park 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. 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 Kings Park is under 450m2, sits in a heritage conservation area, or is affected by a flood planning 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.
Kings Park 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 Kings Park 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 Kings Park blocks support 60m² 2-bedroom layouts.
Yes, but we handle the entire approval process for you.
