Yes, many Glendenning properties may be suitable for a granny flat, but eligibility depends on the individual block. Under the NSW Housing SEPP, a secondary dwelling can use the Complying Development Certificate (CDC) pathway on lots of at least 450m², provided the site and design meet the required standards. A granny flat is generally limited to 60m² of floor area under this pathway. Glendenning is within Blacktown City Council, and around 87% of lots are zoned R2 Low Density Residential, where secondary dwellings are permitted. The suburb includes established residential blocks above the 450m² threshold, with local examples ranging from about 458m² to 652m², although lot sizes vary and should always be checked individually. Properties should also be checked for flood and overland-flow constraints, particularly within the wider Eastern Creek catchment, before the design and approval pathway are confirmed.
Get inspiration from our recent granny flat projects across Glendenning and surrounds — and see how we’ve turned different properties into practical new spaces.
Glendenning is particularly suited to homeowners who want more space for family while making better use of an established property. At the 2021 Census, 89.2% of Glendenning households were family households, compared with 71.2% across NSW, while the suburb averaged 3.4 people per household. The housing stock is also overwhelmingly low-density, with 97.4% of occupied dwellings being separate houses. Glendenning has another advantage that sets it apart: its own 170-hectare industrial and employment precinct supported about 5,797 jobs in 2021, with Blacktown City Council identifying the area as part of its important network of employment lands. For homeowners planning ahead, a granny flat can provide independent accommodation for parents or adult children, with the flexibility to become rental accommodation or a downsizing option later.
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The three things that shape a granny flat build in Glendenning: the planning rules, the ground you’re building on, and what the market gives back.
Median house price in Glendenning
Typical granny flat rent
Key local landmark
your block
nearest station
A granny flat in Glendenning 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 Glendenning 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.
Glendenning 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 Glendenning 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 Glendenning blocks support 60m² 2-bedroom layouts.
Yes, but we handle the entire approval process for you.
