Residential building design project Seaholme, Melbourne western suburbs

Building designer in Seaholme. Registered, local, end-to-end

From concept through to approved permits. RD Building Design manages building design for Seaholme homeowners who want it done properly.

When you decide to extend, rebuild, or add a secondary dwelling, getting the design right matters for both liveability and long-term value. RD Building Design is a registered building designer covering Seaholme and the wider Hobsons Bay area. We manage design, planning, and building permit documentation.

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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 in Seaholme

When an existing Seaholme house has reached the end of its useful life, or when renovation costs exceed the value they would add, a knockdown rebuild gives you a home designed from scratch for your site, your household, and relevant planning controls.

The design can use the full site capacity allowed under the Hobsons Bay Planning Scheme, oriented and configured for how you actually want to live.

RD Building Design manages knockdown rebuild projects from feasibility through to building permit.

Coastal building design in Seaholme

Seaholme's bayside setting creates a distinct built environment. Vegetation, materiality, and the relationship between buildings and the water all contribute to a neighbourhood character that is worth preserving.

Hobsons Bay reinforces this through its planning provisions, and any extension or new build in Seaholme needs to work within that context.

RD Building Design has experience designing in coastal settings and understands how to satisfy both the planning scheme and the streetscape.

Extending a home you plan to keep

Seaholme 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 Seaholme

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

Flood overlay

LSIO applies to lower-lying areas near the bay and Cherry Lake. Minimum floor levels and drainage requirements affect design on affected lots. Properties near the waterfront require site-specific flood assessment before design.

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

15km from Melbourne CBD. Nearest station: Seaholme.

This summary reflects general planning conditions for Seaholme 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 Seaholme

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

From first conversation to approved plans

RD Building Design manages the full process.

Consultation. We discuss the project, review your Seaholme property, and outline what is possible. No charge.
Feasibility. Goals tested against site conditions and planning controls. Done before design starts.
Concept. Floor plans and external design showing how the project works on your block. You guide the revisions.
Planning permit (where needed). Full application prepared and managed through Hobsons Bay assessment.
Permit drawings. Working drawings for building permit and builder quoting.
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 Seaholme homeowners

Will I need a planning permit to extend in Seaholme?

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 Seaholme?

Building permits are usually assessed in around 10-20 business days. If a planning permit is needed, Hobsons Bay 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 Seaholme 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.

Is a knockdown rebuild an option in Seaholme?

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

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

A property assessment from RD Building Design reviews your block against the Hobsons Bay 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 Seaholme property, your project goals, and a straightforward assessment of what the site allows. No commitment required.

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