Home builders in Cottesloe

Cottesloe maps four split codes that all step up to R60 — R20/60, R30/60, R35/60 and R40/60 — across 3.75 km². That pattern is deliberate and it is unusual: the town has drawn a series of different starting densities that share one conditional destination.

What a shared upper figure tells you

Where a code is written as a pair, the first number is what governs today and the second is held back behind a condition the scheme sets out. Where several codes across a town share the same upper figure, the scheme is expressing a settled view about the density that particular land could reach, while starting different parcels from different baselines according to what is there now. For a homeowner the reading is that R60 is the ceiling being contemplated on that land — not a negotiation, and not an invitation to expect more.

The gap is what varies, and it varies a lot

R20/60 is a threefold step. R40/60 is a fifty per cent step. The same condition, satisfied on two different parcels, delivers very different outcomes — so the value of meeting it depends entirely on which baseline your land starts from. If the higher figure is the reason for a purchase, establish two things with the Town in writing: which figure applies to the lot today, and precisely what would have to happen for the other one to apply. That answer is in the scheme text rather than on the map, and it is not inferable from what a neighbouring property achieved.

Twelve codes, up to R100

R20, R25, R30, R35, R40, R50, R60 and R100 are mapped alongside the four split codes. R100 is apartment density and it applies to specific land. Across a town under four square kilometres that spread means the code on adjoining land is worth checking alongside your own, particularly where ocean outlook is part of the value.

No structure plan applies

No endorsed structure plan covers Cottesloe. Where one exists it governs lot layout, density and staging and is the first document to read; here there is none, so the Cottesloe Local Planning Scheme No. 3 and the Town's own policies are the controlling documents. That simplifies the search and puts the weight on council policy — which is where matters such as setbacks, overshadowing, and the treatment of the coastal edge will be dealt with.

Bushfire, on a coastal strip

Part of Cottesloe sits inside a designated Bush Fire Prone Area, mapped across two areas. On a narrow coastal town the mapping follows remnant coastal vegetation rather than bushland, and a block inside one is rated on its own surroundings, and that rating drives the build specification.

Salt, wind and limestone

Three things shape a build here that appear in no code. The external material specification follows an exposure category assessed for the site — and on this stretch of coast the honest answer is frequently the severe end of the scale. The wind classification assessed for the site drives framing and tie-downs. And the ground is coastal limestone over sand: rock can sit closer to the surface than expected, which reaches excavation cost, footing design and service trenching. A geotechnical investigation on the specific lot is what makes a quote meaningful rather than provisional.

What to establish first in Cottesloe

Which figure of the split code applies to the lot today, and what the condition is — in writing from the Town. Then the code on adjoining land. Then the exposure category and wind classification, named in any quote rather than assumed. Then the geotechnical investigation for limestone depth.