Residential building design project Altona, Melbourne western suburbs

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

From concept through to approved permits. RD Building Design manages building design for Altona 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 Altona and the wider Hobsons Bay area. We manage design, planning, and building permit documentation.

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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 Hobsons Bay 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 Altona 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.

knockdown rebuild in Altona

When an existing Altona 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.

Building design that respects Altona's coastal character

Altona has a built character that distinguishes it from generic suburban development: a relationship to the bay, established vegetation, and materials that have weathered honestly.

Extending or rebuilding in this context means understanding what makes the streetscape work and designing something that sits within it rather than against it. Hobsons Bay's neighbourhood character provisions reinforce this.

RD Building Design approaches coastal design from this standpoint. The result should add to the property and to the street.

Extensions designed for how you live

In Altona, 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.

What you can build in Altona

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.

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

Flood overlay

Land subject to inundation overlay (LSIO) applies to some areas. Minimum floor levels and drainage requirements affect design. Site-specific checking required.

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 selected lots

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

Location

14km from Melbourne CBD. Nearest station: Altona.

This summary reflects general planning conditions for Altona 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 Altona

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 Altona 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 Altona homeowners

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

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 Altona?

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 Altona 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 Altona?

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 Altona?

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.

Talk to a building designer who knows Altona

A free consultation covers your project, your property's planning situation, and an honest assessment of what is achievable. No obligation.

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