ARMADALE · BYFORD · SERPENTINE · SOUTHERN GROWTH CORRIDOR
Custom ancillary dwellings across Armadale, Byford, Serpentine, Oakford and Mundijong. From new estate lots to rural-residential acreage — we build where your family needs us.
Registered Builder BC101705 | BAL-Rated Construction | Fixed-Price Contracts | Rural & Residential | Covenant Checks Included
WHERE WE BUILD
From the established streets of Armadale to the semi-rural lifestyle properties of Serpentine and Oakford, ANWEST builds ancillary dwellings across the full southern growth corridor.
Armadale: Established suburb with good lot sizes — often strong candidates for a rear ancillary dwelling.
Byford: Rapidly growing — estate covenant checks are a must before committing to a build here.
Serpentine: Rural-residential properties with larger lots and bushfire-prone zone considerations.
Oakford: Semi-rural lifestyle blocks — secondary dwellings assessed under rural zone provisions.
Mundijong: Peel-fringe rural corridor — growing fast with genuine multi-generational demand.
Karrakup: Quiet rural-residential — larger lots with privacy and space to do it properly.
Bedfordale: Hills interface suburb — BAL assessments and sloped sites handled from day one.
Wungong: Semi-rural Armadale fringe — we know the dual planning frameworks that apply here.
WHAT THIS CORRIDOR REQUIRES
This part of Perth sits at the intersection of suburban growth, rural-residential living, and bushfire-prone terrain. Here's what every build in this corridor needs to account for.
Properties in this corridor fall under either the City of Armadale or the Shire of Serpentine-Jarrahdale. Each has its own local planning policies sitting over the State R-Codes. We determine which authority and which rules apply to your specific property at the first consultation.
Much of this corridor — particularly rural-residential lots in Serpentine, Karrakup and Bedfordale — falls within designated bushfire-prone areas. We arrange your BAL assessment early and spec your build to meet the resulting rating, including ember-resistant eaves and compliant glazing.
Byford's rapid growth means a mix of older and very new estates, many with restrictive covenants on secondary dwellings. ANWEST checks your certificate of title at the initial consultation — so you know whether you're eligible before spending any time or money.
Rural-residential properties in Serpentine, Oakford and Karrakup are typically not on scheme sewer. Adding a secondary dwelling requires assessment of septic system capacity — something we coordinate with the relevant Shire and Health Department as part of pre-approval.
This corridor has varied soil conditions — from sandy coastal-influenced soils in Byford to reactive clay and rock-influenced profiles in Bedfordale and the hills fringe. We include an engineer-specified footing design suited to your site's actual soil class.
Narrow rural laneways, steep driveways and limited crane swing are common on acreage lots. We stage material deliveries and assess access constraints as part of the initial site visit — no surprises during construction.
WHY FAMILIES HERE CHOOSE ANWEST
The southern growth corridor isn't a market most granny flat builders know well. ANWEST does — from Armadale's R-codes to the Serpentine-Jarrahdale rural provisions.
The Armadale/Serpentine-Jarrahdale boundary cuts through this corridor and the two councils have different requirements. We submit complete, well-prepared DAs to the right authority the first time — which reduces delays significantly.
Our BlueScope steel frame and Colorbond system meets BAL requirements cost-effectively — typically without the premium of specialist bushfire materials. We factor your BAL rating into the fixed price before you sign anything.
Whether you're on a 600sqm Byford estate lot or a 2-hectare Oakford lifestyle block, ANWEST builds across the full range. The design adapts to your block; the quality and process stay consistent.
OUR DESIGNS
Every ANWEST ancillary dwelling uses a BlueScope steel frame with Colorbond roofing and CFC cladding — the ideal system for the heat, fire risk and varied terrain of the southern growth corridor.
COMMON QUESTIONS
A: Yes. The City of Armadale permits ancillary dwellings on residentially zoned lots under the State R-Codes. Your primary dwelling must be owner-occupied and the ancillary dwelling must not exceed 60sqm of habitable floor area in most cases. ANWEST manages the Development Application on your behalf as part of our service.
A: Possibly. Byford's newer estates often have restrictive covenants on secondary dwellings for a set period after the original land sale. ANWEST checks your certificate of title at the initial consultation — at no cost — so you know whether your lot is eligible before any commitment is made.
A: No. A bushfire-prone designation requires a BAL assessment and construction to the resulting standard — it doesn't prevent you from building. Our BlueScope steel frame and Colorbond system meets BAL requirements effectively and is well suited to the Serpentine-Jarrahdale environment. The BAL assessment is arranged as part of our pre-construction process.
A: Not necessarily, but it does need to be managed. We assess your existing septic system's capacity and coordinate with the Shire of Serpentine-Jarrahdale and Department of Health on the wastewater solution for the new dwelling. This is included in our pre-approval process — no surprises later in the project.
A: A 1-bedroom ancillary dwelling is typically 20 weeks from slab pour to handover. A 2-bedroom, 2-bathroom build runs approximately 24 weeks. DA approval timing and service connections are additional to these build periods — all factored into your project schedule from day one.
Talk to Mark about your block, your zone, and what's possible for your family.