Residential building design project Seabrook, Melbourne western suburbs

Building designer servicing Seabrook. Full design and permit service

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

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

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Who is RD Building Design?

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

A registered building design practice based in Melbourne's western suburbs, working across Hobsons Bay and neighbouring councils.

We specialise in residential projects: extensions, granny flats, dual occupancy, knockdown rebuilds, and new homes. One designer leads your project from start to finish.

Straightforward communication, realistic timelines, and permit documentation that is right the first time.

Curious about the difference between a building designer and an architect?

knockdown rebuild design for Seabrook 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 Hobsons Bay 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.

Building design for long-term homeowners in Seabrook

Most extension projects in Seabrook are driven by homeowners who intend to stay. The brief is personal: more space, better light, a layout that suits the household as it is now.

RD Building Design takes that seriously. We design around daily function, not spec appeal. Traffic flow, storage, the way rooms open to the outdoor spaces. The details that matter when you are living with the result.

What we design for Seabrook homeowners

RD Building Design works across the full scope of residential projects.

House extensions. Rear, side, or second storey. Structural coordination and full permit documentation included.

Granny flats and studios. Including our Boxed Buildings SIP panel range. Design and permits managed; your builder assembles.

Dual occupancy. Two dwellings on one block where zoning allows. Feasibility assessment through to permit.

knockdown rebuild. A new home designed around your site, your household, and the planning controls.

New house design. Full design for vacant or subdivided lots, from brief through to building permit.

What you can build in Seabrook

Planning controls and development potential under the Hobsons Bay Planning Scheme

Council

Hobsons Bay

Planning scheme

Hobsons Bay 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.

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

Limited viability

Predominantly NRZ zoning or small lot sizes restrict dual occupancy to a small number of properties. Site-specific assessment essential.

Location

18km from Melbourne CBD. Nearest station: Laverton.

This summary reflects general planning conditions for Seabrook 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 Seabrook

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 Seabrook 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 Seabrook homeowners

Do I need a planning permit to extend my house in Seabrook?

It depends on the work and your property's planning overlays. Many extensions can proceed directly to building permit under ResCode. Properties in heritage overlays or special planning areas usually require planning approval. RD Building Design assesses this at initial consultation.

How long does a building permit take in Seabrook?

A building permit application is typically assessed in 10-20 business days. Where a planning permit is required first, Hobsons Bay assessment typically takes 10-60 days. RD Building Design advises on realistic timelines at the start of every project.

Can I build a granny flat on my Seabrook property?

Most residential lots zoned NRZ or GRZ can accommodate a secondary dwelling up to 60sqm without a planning permit under Victoria's 2023 provisions, subject to site coverage, setback, and open space requirements. RD Building Design confirms feasibility as part of an initial assessment.

Can I do a knockdown rebuild in Seabrook?

If your property is not heritage-listed, a knockdown rebuild is usually viable. The replacement dwelling must comply with the Hobsons Bay Planning Scheme for setbacks, site coverage, and neighbourhood character. RD Building Design confirms what the site allows before design begins.

How do I find out what I can build on my property in Seabrook?

RD Building Design offers a property assessment that reviews your block against the Hobsons Bay Planning Scheme and gives you a written summary of what is buildable: extension capacity, granny flat viability, dual occupancy potential, and any constraints.

Ready to talk about your Seabrook project?

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

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