Residential building design project Keilor, Melbourne western suburbs

Building designer servicing Keilor. Full design and permit service

Residential building design from concept to approved permit. RD Building Design covers Keilor and the western suburbs.

RD Building Design is a registered building designer based in Melbourne's western suburbs. We work across Brimbank and surrounding councils, managing residential projects from initial feasibility through to completed permit drawings.

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Working with RD Building Design

Rhys Davies Building Designer (DP-AD 43008) Adv.Dip. Building Design (Arch.), Registered Building Practitioner (Arch.) RD Building Design

RD Building Design is a registered practice covering Brimbank and Melbourne's wider western suburbs. We work exclusively on residential projects.

Your project is led by an experienced building designer throughout. No hand-offs, no junior staff running the detail.

For Keilor homeowners, that means clear advice, honest timelines, and permit drawings that do the job first time.

Building designer vs architect? Here is what the difference means for your project.

Heritage overlay design in Keilor

A heritage overlay does not mean you cannot build. It means the design needs to respond to the existing character of the property and its surroundings.

Extensions, secondary dwellings, and alterations in heritage areas proceed through planning permission. The design needs to sit comfortably alongside the original building without copying it.

RD Building Design works within Brimbank's heritage provisions and can advise at the outset what approvals your property requires under the Brimbank Planning Scheme.

Extensions designed for how you live

In Keilor, where most homeowners stay long-term, extensions are about solving a genuine problem: the kitchen that doesn't work for a growing family, the lack of a second living space, or a master bedroom that was fine for two.

Design quality matters more when you are living with the result for years. RD Building Design designs extensions around how a household actually functions: traffic flow, light, storage, and the relationship between indoor and outdoor space.

Granny flats in Keilor

Since Victoria's 2023 planning reforms, most residential properties can accommodate a secondary dwelling up to 60sqm without needing a planning permit. The building still needs to satisfy ResCode for setbacks, site coverage, and open space.

RD Building Design offers granny flat design and permits including our Boxed Buildings SIP panel range. These are precision-manufactured kits designed for fast on-site assembly. We design and document; your builder builds.

Site coverage is usually the binding constraint in Keilor. We check feasibility before any design commitment.

What you can build in Keilor

Planning controls and development potential under the Brimbank Planning Scheme

Council

Brimbank

Planning scheme

Brimbank Planning Scheme

Predominant zones

NRZ Neighbourhood residential zone

Limits housing growth. Maximum two dwellings per lot in most cases. No apartment-style development. Protects established neighbourhood character.

GRZ General residential zone

Allows moderate housing growth. Dual occupancy viable on lots of 300sqm+ per resulting title. Medium density development permitted with a planning permit.

Planning overlays

Heritage overlay

Heritage overlays apply to parts of Keilor Village and surrounds, reflecting its 19th-century heritage as one of Melbourne's oldest settlements. Heritage assessment is required for works in affected areas.

Flood overlay

LSIO applies to areas along the Maribyrnong River and its tributaries. Properties near the river require flood assessment.

Typical lot size

Large (typically 700sqm+)

Substantial design freedom. Dual occupancy, larger secondary dwellings, and generous separation between structures are all typically achievable.

Granny flat viability

Permitted up to 60sqm without a planning permit under Victoria's 2023 provisions. Most blocks have sufficient site coverage capacity for a well-sized secondary dwelling.

Dual occupancy

Viable on selected lots

Some GRZ zoning available, but NRZ dominates or lot sizes limit opportunities. Feasibility depends on specific block dimensions and frontage.

Location

18km from Melbourne CBD. Nearest station: None - bus services.

This summary reflects general planning conditions for Keilor as of 2025. Individual properties may have additional overlays or conditions. A property assessment confirms exactly what applies to your block.

Building design services in Keilor

Whatever your project RD Building design can help.

New home design

Custom home design from initial brief through to permit-ready documents

Knockdown rebuild designs

A completely new design on your existing block, built around the life you want

Residential extensions and renovations

Additions that connect and blend with your existing home

Townhouses / Multi-Unit design

Multiple dwellings on one site, with all planning and documentation managed

The design and permit process

Every RD Building Design project follows a clear sequence.

Free consultation. We review your Keilor property, discuss your goals, and confirm what permits are needed.
Feasibility. Your brief assessed against the site and the planning controls before any design work starts.
Concept design. Floor plans and elevations showing how the project sits on the block. Revisions are directed by you.
Planning permit (if required). Prepared, lodged, and managed through council assessment.
Building permit drawings. Complete documentation for permit and builder pricing.
Handover. Approved drawings ready for your builder.

RD Building Design serves homeowners across Melbourne's western suburbs and beyond.

Building design questions for Keilor homeowners

Will I need a planning permit to extend in Keilor?

That depends on the scope of the work and any overlays on your property. Many standard extensions go straight to building permit. Heritage or design overlay areas typically need planning approval first. We check this at your initial consultation.

What is the typical permit timeline in Keilor?

Building permits are usually assessed in around 10-20 business days. If a planning permit is needed, Brimbank generally takes about 10-60 days. RD Building Design provides realistic timelines at the outset of every project.

Is a granny flat possible on my Keilor block?

Under Victoria's 2023 reforms, a secondary dwelling up to 60sqm can be built on most NRZ and GRZ lots without a planning permit, provided site coverage, setback, and open space requirements are met. We assess this as part of an initial consultation.

How does heritage affect my extension in Keilor?

Heritage overlays shape the design approach but do not prevent extensions. RD Building Design works within Brimbank's heritage provisions and can advise on what approvals are needed for your property.

Is a knockdown rebuild an option in Keilor?

For properties without a heritage overlay, knockdown rebuild is generally viable. The new dwelling must comply with the Brimbank Planning Scheme for setbacks, coverage, and character. We confirm feasibility before design starts.

How can I find out what is buildable on my Keilor property?

A property assessment from RD Building Design reviews your block against the Brimbank Planning Scheme and provides a written summary of development potential, including extension capacity, granny flat viability, and dual occupancy options.

Start with a conversation

A free consultation with RD Building Design covers your Keilor property, your project goals, and a straightforward assessment of what the site allows. No commitment required.

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