Suburb guide · 2094
Can I build a duplex or granny flat in Fairlight?
Fairlight sits in Northern Beaches Council's area under Manly Local Environmental Plan 2013. We ran 25 real Fairlight addresses through the checker: the typical block is 406 m² with 12.4 m of frontage, 11 of the 25 could add a granny flat, and 25 could carry two separate homes today.
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The typical Fairlight block
The middle block of the 25 we checked is 406 m² with 12.4 m of street frontage. The smallest was 203 m² and the largest 1,116 m². Zones in the sample: R1 (24), C4 (1).
The 25 blocks we checked, by land size.
What homes sell for in postcode 2094
Median sale prices for the whole of postcode 2094, January to March 2026. These cover every suburb sharing the postcode, not Fairlight alone, and they are not a value for any one block.
- Houses: not published (10 or fewer sales this quarter)
- Units and apartments: $1.88m (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
11 of the 25 blocks we checked could take one. Manly LEP cl 5.4(9) sets the size as the greater of 60 m² or 30% of the house’s floor area — not the 60 m² flat cap; cl 6.22 allows up to 75 m² where the flat sits entirely inside the existing house. 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 Fairlight
25 of the 25 blocks we checked could carry two or more separate homes today.
Manly LEP sets no minimum lot size or frontage for a dual occupancy — permitted with consent in R2, judged on Council's DCP controls (site coverage, setbacks, open space, parking)
Low and Mid-Rise
6 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
2 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. Northern Beaches has no flood layer on the Planning Portal, so flood is checked against Council’s own study by hand.
How we got these numbers
We took 25 real Fairlight 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 Fairlight. 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.