rhys@rdbd.com.auEmail | Call 0414 135 014 | Altona Victoria
Residential building design project Deer Park, Melbourne western suburbs

Building designer servicing Deer Park. Full design and permit service

Residential building design from concept to approved permit. RD Building Design covers Deer Park 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.

Dual occupancy potential in Deer Park

About 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 building design practice specialising in residential projects across Melbourne's western suburbs. Our work covers Brimbank and the surrounding councils.

Every project is led by an experienced building designer from first conversation to permit approval.

For Deer Park homeowners: straightforward advice, honest timelines, and permit drawings done properly the first time.

Want to understand the difference between working with a building designer and an architect?

Dual occupancy potential in Deer Park

For Deer Park properties on lots with adequate size and frontage, dual occupancy can be a genuine option.

The permit pathway is more complex than a standard extension, but the result is two separately titled dwellings on a single block.

RD Building Design assesses dual occupancy feasibility as part of every initial consultation. We confirm whether the numbers work before any design commitment.

knockdown rebuild design for Deer Park properties

A knockdown rebuild replaces the existing dwelling with a home designed specifically for the site. No inherited floor plan compromises, no structural limitations from the original building, improved thermal comfort.

The new design works within the Brimbank Planning Scheme to use the full allowable site capacity, oriented for the way your household actually lives.

RD Building Design manages the process from feasibility confirmation through to approved building permit drawings.

Extending a home you plan to keep

Deer Park homeowners who extend are usually staying. That changes the design brief entirely. This is not about maximising a sale price. It is about making a home work better for the people living in it.

RD Building Design designs extensions around how households actually use their homes: how rooms connect, where natural light falls, how indoor and outdoor spaces relate to each other.

What you can build in Deer Park

Planning controls and development potential under the Brimbank Planning Scheme

Council

Brimbank

Planning scheme

Brimbank Planning Scheme

Predominant zones
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

No heritage, flood, or design overlays apply broadly to this suburb. Individual properties should still be checked for site-specific overlays.

Typical lot size

Medium to large (typically 500-800sqm+)

More design flexibility. Site coverage is rarely the binding constraint, allowing larger secondary dwellings and more generous setbacks.

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 many lots

GRZ or RGZ zoning on a significant proportion of properties. Lots meeting the minimum 300sqm-per-title threshold are common. Planning permit required.

Location

17km from Melbourne CBD. Nearest station: Deer Park.

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

From first conversation to approved plans

From first conversation to approved plans

RD Building Design manages the full process.

  1. Consultation. We discuss the project, review your Deer Park property, and outline what is possible. No charge.
  2. Feasibility. Goals tested against site conditions and planning controls. Done before design starts.
  3. Concept. Floor plans and external design showing how the project works on your block. You guide the revisions.
  4. Planning permit (where needed). Full application prepared and managed through Brimbank assessment.
  5. Permit drawings. Working drawings for building permit and builder quoting.
  6. Completion. A full set of approved drawings, ready for construction.

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

Building design questions for Deer Park homeowners

Will I need a planning permit to extend in Deer Park?

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 Deer Park?

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 Deer Park 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.

Can I subdivide my Deer Park property for dual occupancy?

Dual occupancy requires adequate lot size, and sufficient frontage. RD Building Design assesses feasibility at the initial consultation stage.

Is a knockdown rebuild an option in Deer Park?

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 Deer Park 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.

Contact RD Building Design Deer Park

Ready to talk about your Deer Park project?

Book a free consultation and we will review your property, discuss your goals, and give you an honest picture of what is possible.