Suburb guide · 2073
Can I build a duplex or granny flat in Pymble?
Pymble sits in Ku-ring-gai Council's area under Ku-ring-gai Local Environmental Plan 2015. We ran 25 real Pymble addresses through the checker: the typical block is 942 m² with 19.9 m of frontage, 24 of the 25 could add a granny flat, and 3 could carry two separate homes today.
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The typical Pymble block
The middle block of the 25 we checked is 942 m² with 19.9 m of street frontage. The smallest was 609 m² and the largest 1,503 m². Zones in the sample: R2 (20), C4 (5).
The 25 blocks we checked, by land size.
What homes sell for in postcode 2073
Median sale prices for the whole of postcode 2073, January to March 2026. These cover every suburb sharing the postcode, not Pymble alone, and they are not a value for any one block.
- Houses: $3.24m (38 sales)
- Units and apartments: $1.07m (11 to 30 sales, a small sample)
Source: NSW Government Rent and Sales Report (Department of Communities and Justice), sales tables by postcode, NSW Government. Updated each quarter.
A granny flat
24 of the 25 blocks we checked could take one. Ku-ring-gai LEP cl 5.4(9) — the greater of 60 m² or 25% of the house’s total floor area, parking excluded. Separately, the state Housing SEPP allows a granny flat of up to 60 m² through the ten-day complying-development route on a lot of 450 m² or more with a 12 m frontage, where the land is not flood, bushfire or heritage constrained.
Dual occupancy (duplex) rules in Pymble
3 of the 25 blocks we checked could carry two or more separate homes today.
dual occupancies are not in the R2 land-use table of the Ku-ring-gai LEP, so outside the state Low and Mid-Rise catchment they are not permitted; inside it, cl 4.1A (inserted 2025) sets 1,015 m² and a split into two titles needs 507.5 m² per lot (cl 4.1B) — a planner confirms how the state rule and the LEP figure interact on your lot
Low and Mid-Rise
3 of the 25 blocks sat inside the state Low and Mid-Rise area — within about an 800 m walk of a listed centre or station. Inside it the Housing SEPP overrides the LEP minimums: a dual occupancy on 450 m² with a 12 m frontage, terraces on 500 m² / 18 m, townhouses on 600 m² / 12 m and a manor house on 500 m² / 12 m, up to 9.5 m. That is what lifts the two-homes figure above; a block one street outside the line gets the LEP figure instead.
What else turned up
6 of 25 were on bushfire-prone land; 1 of 25 carried a heritage listing or conservation area. Any of those takes a block out of the fast-track routes and into a full DA, so it changes the answer more than the lot size does.
How we got these numbers
We took 25 real Pymble street addresses from the NSW geocoder and ran every one through the same engine this site runs for you, reading the planning controls live. Nothing here is modelled or estimated.
It is a sample, not a census. The addresses are a spread across what the geocoder returns, so treat these as "of the 25 blocks we checked" rather than a figure for every block in Pymble. Your own block is the only one that answers for itself — that is what the box on the right is for.
Enter the address — lot, frontage, zone, constraints and what it can carry.