7suburbs mapped in Perth HillsAcross 2 councils — which one you lodge with changes the process and the timeline.

Western Australia · Region

Home builders in Perth Hills

7 suburbs across 2 councils, each read parcel by parcel from the state's own planning data. What differs between them is the land, and the land is what decides who should build on it.

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7Perth Hills suburbs read parcel by parcel from Western Australia's own planning data

2Councils across the region. Which one you lodge with changes the process and the timeline

12Distinct overlay families mapped across these suburbs, each one something a builder prices differently

Perth Hills suburb by suburb

Suburb	Residential zones	R-Code density	Bushfire-prone	Overlays
Boya	Residential, Rural	R5	Mapped	0
Carmel	bushland, Urban development	R2.5–R5	Mapped	2
Chidlow	Residential, Rural	R2.5–R5	Mapped	3
Gooseberry Hill	Residential	R2.5–R10	Mapped	2
Helena Valley	Development, Residential, Rural	R2.5–R30	Mapped	7
Kalamunda	Residential, bushland	R2.5–R40	Mapped	3
Lesmurdie	Residential, Urban development	R5–R10	Mapped	2

Reading the table

Chidlow, Helena Valley, Kalamunda and Lesmurdie are inside a declared growth area; Boya, Carmel and Gooseberry Hill are established.
12 overlay families are mapped across the region; Helena Valley carries the most at 7.
The 7 mapped suburbs cover 96 km² between them — Chidlow is the largest at 43 km² and Boya the smallest at 1.9 km².

What is mapped across Perth Hills

Mapped only in some suburbs	Where (in the suburb, not on a given block)
Bushfire prone areas	Carmel, Gooseberry Hill, Helena Valley, Kalamunda and Lesmurdie
SCA - Middle Helena catchment area	Carmel, Gooseberry Hill and Kalamunda
Special design area	Chidlow and Helena Valley
Aircraft noise exposure	Helena Valley
Development area	Helena Valley
Flood prone area	Helena Valley
Floodfringe	Helena Valley
Floodway	Helena Valley
Mundaring Weir SCA - priority protection level	Chidlow
Municipal boundary	Chidlow
SCA - Kalamunda town centre design control area	Kalamunda
Special Control Area - Quarry Buffers	Lesmurdie

Which Perth Hills suburb suits which build

Room to move
Chidlow is the largest at 43.0 km², Boya the most compact at 1.9 km².
Fewest planning controls
Boya, with 0 overlay families mapped against 7 in Helena Valley.
New estate, or established
Chidlow, Helena Valley, Kalamunda, Lesmurdie sit in a declared growth area; Boya, Carmel, Gooseberry Hill are established.

Questions about building in Perth Hills

Which council approves building work in Perth Hills?

2: Boya, Chidlow and Helena Valley with Shire of Mundaring; Carmel, Gooseberry Hill, Kalamunda and Lesmurdie with City of Kalamunda.

Is bushfire-prone land mapped in Perth Hills?

Yes, in all 7 mapped Perth Hills suburbs: Boya, Carmel, Chidlow, Gooseberry Hill, Helena Valley, Kalamunda and Lesmurdie.

Which Perth Hills suburb has the most planning constraints?

Helena Valley: 7 overlay families against 0 in Boya. Aircraft noise exposure, Development area, Flood prone area, Floodfringe and Floodway are mapped in Helena Valley and in none of the others.

What planning zones apply across Perth Hills?

5: Development, Residential, Residential bushland, Rural residential and Urban development. Widest range: Helena Valley, at 3.

Is heritage mapped in Perth Hills?

Heritage records intersecting each suburb: Lesmurdie 6, Kalamunda 5, Chidlow 3, Boya 1, Carmel 1, Gooseberry Hill 1, Helena Valley 1.

What R-codes apply in Perth Hills?

Boya R5, Carmel R2.5–R5, Chidlow R2.5–R5, Gooseberry Hill R2.5–R10, Helena Valley R2.5–R30, Kalamunda R2.5–R40, Lesmurdie R5–R10.

Lodge with: Boya, Chidlow and Helena Valley with Shire of Mundaring (Mundaring Local Planning Scheme No. 4); Carmel, Gooseberry Hill, Kalamunda and Lesmurdie with City of Kalamunda (Kalamunda Local Planning Scheme No. 3). Read 2026-09-19.

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Building in Perth Hills?

Tell us the suburb and what you are building. Licence checked with Building and Energy WA, insurance sighted, still trading, and genuinely working in Boya, Carmel and Chidlow. If we cannot find one worth recommending, we will say so.

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