Home builders in Dee Why
Northern Beaches Council · Warringah Local Environmental Plan 2011 · Northern Beaches Knockdown rebuild
- Council
- Northern Beaches Council
- Planning scheme
- Warringah Local Environmental Plan 2011
- Overlays mapped here
- Heritage — Item - General · Heritage — Conservation Area - Landscape · Heritage — Item - Landscape
- Residential zones mapped
- R2 Low Density Residential
R3 Medium Density Residential - Heritage items mapped
- 20
- Typical height limit
- 11m
- Floor space ratio
- varies by block
- Acid sulfate soils
- Mapped in this suburb
Planning data from NSW ePlanning Spatial Viewer (CC BY 4.0), read 2026-09-14. Suburb-level, not a report on your block — check your address on the NSW Planning Portal.
Worth knowing before you budget
- Building height
No single height control covers much of Dee Why: the most common is 11m, on 5 of 57 mapped parcels. Height here is set block by block. Other controls that apply to a meaningful number of parcels run up to 13m — generally centres and larger sites, not a house block.
- Floor space ratio
Floor space ratio varies across Dee Why: the most common mapped value is 4:1, on 5 of 23 parcels. It has to be read at the address.
Builders serving Dee Why
None yet — tell us what you're building and we'll go and find one.
What building in Dee Why actually involves
Dee Why is the clearest example on this site of why a suburb-wide number is useless. The most common mapped floor space ratio is 4:1 — on 5 of 23 parcels, and the most common height limit is 11m on 6 of 29. Neither is "the" control; both are the town centre.
Nothing dominates, so read the address
Where a suburb has one control over most of its land, a rule of thumb works. Dee Why does not. The high ratios and heights sit in the centre; the rest of the suburb is R2 Low Density and R3 Medium Density land with no mapped control at all in many places. Anyone quoting from "what Dee Why allows" is quoting an average of two different places.
Heritage, including a landscape conservation area
20 heritage records are mapped, and unusually they include a landscape conservation area rather than a built one. That protects the setting — vegetation, topography, the way buildings sit in it — which is a different assessment from a streetscape conservation area.
Acid sulfate soils around the lagoon
Seven features are mapped, following Dee Why Lagoon and the low ground behind the beach. Where they apply, disturbing the soil brings a management requirement.
What to ask a builder
Ask for the height and floor space ratio at the address, not the suburb. Ask whether the block is in the landscape conservation area. And ask whether acid sulfate management is priced.
Local landmarks in Dee Why
- Stony Range Botanic Garden
- Meehan Reserve
- Dee Why Lagoon Reserve
- Dee Why Cliffs Reserve
- Walter Gors Park
- Long Reef Beach Reserve
- Dee Why Park
- Stoddart Reserve
Questions about building in Dee Why
How tall can I build in Dee Why?
There is no suburb-wide answer. Height is mapped on only 29 parcels and the most common value, 11m, covers six of them — that is the town centre. Read the control at your address.
What is the floor space ratio in Dee Why?
The most common mapped value is 4:1, on 5 of 23 parcels, which is centre land rather than house blocks. Most of the suburb has no mapped ratio at all. It has to be checked at the address.
What is a landscape conservation area?
A heritage conservation area that protects the setting — vegetation, topography and the way buildings sit in it — rather than a built streetscape. Dee Why maps one, which is unusual.
Are acid sulfate soils mapped?
Seven features, following Dee Why Lagoon and the low ground behind the beach. Where they apply, disturbing the soil brings a management requirement and an earthworks cost.
What zone is Dee Why?
R2 Low Density Residential and R3 Medium Density Residential. The zone is narrow; the variation is in the height and floor space controls, which is why the address matters so much here.