Residential building design project Maidstone, Melbourne western suburbs

Building design and permits for Maidstone properties

RD Building Design is a western suburbs building designer covering Maribyrnong and neighbouring councils.

Whether you are extending, adding a secondary dwelling, or building new, RD Building Design manages the full design and permit process. We are a registered building design practice based in Melbourne's west, working across Maribyrnong.

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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 Maribyrnong 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?

Two dwellings on one Maidstone block

Where zoning and lot size allow, dual occupancy turns one Maidstone property into two separately titled dwellings.

It is a more involved process than an extension or granny flat, but the financial outcome is a different category entirely.

RD Building Design reviews feasibility at the first consultation. We assess block size, zoning, and planning constraints before any design work begins.

Extending on a smaller Maidstone lot

Compact blocks require careful design. Every square metre of extension affects setbacks, site coverage, and overlooking provisions. What you gain in one area, you often give up in another.

The skill is in finding the layout that gets the most from the site while staying within the Maribyrnong Planning Scheme controls. RD Building Design works on tight western suburbs sites regularly and knows where the constraints have flexibility.

Designing for a changing Maidstone

Maidstone's demographic is shifting. Younger professionals and families are moving in, and property values reflect that trend.

In a suburb on this trajectory, design quality is an investment that compounds. A well-considered extension or rebuild positions a property for the market that is forming, not just today's buyer pool.

RD Building Design understands this dynamic and designs accordingly, from material choices to how the project addresses the street.

What you can build in Maidstone

Planning controls and development potential under the Maribyrnong Planning Scheme

Council

Maribyrnong

Planning scheme

Maribyrnong 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.

NRZ Neighbourhood residential zone

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

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Planning overlays

Flood overlay

LSIO applies to parts of Maidstone adjacent to the Maribyrnong River corridor along the suburb's northern and eastern edges. Minimum floor levels and drainage requirements affect design on affected lots. RDBD checks flood overlay status as part of every initial site assessment.

Typical lot size

Small to medium (typically under 500sqm)

Site coverage is frequently the binding constraint. Extensions and secondary dwellings need careful positioning to stay under the 60% site coverage limit.

Granny flat viability

Permitted up to 60sqm without a planning permit under Victoria's 2023 provisions, but site coverage is likely to be the binding constraint. Many blocks can accommodate a secondary dwelling if existing building footprint allows.

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

8km from Melbourne CBD. Nearest station: Tottenham.

This summary reflects general planning conditions for Maidstone 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 Maidstone

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 Maidstone 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 Maidstone homeowners

Do I need planning approval to renovate in Maidstone?

Many renovations and extensions can proceed on a building permit alone under ResCode. Properties with heritage overlays or in special planning areas will generally need planning approval. RD Building Design determines this at the first consultation.

How long do permits take through Maribyrnong?

A building permit is typically assessed in about 10-20 business days. Planning permits through Maribyrnong generally take around 10-60 days. We set realistic expectations at the start of your project.

Can my Maidstone property support a granny flat?

Most NRZ and GRZ properties can add a secondary dwelling up to 60sqm without planning approval since Victoria's 2023 changes. The key constraints are site coverage, setbacks, and open space. RD Building Design confirms what your block allows.

Is my Maidstone block big enough for dual occupancy?

Under GRZ in Maribyrnong, dual occupancy typically needs at least 250sqm per resulting lot and appropriate frontage. RD Building Design reviews feasibility at the initial consultation before any design work.

What about adding a second level to my Maidstone home?

Second storey additions are viable on most properties, subject to structural capacity and planning requirements for overlooking, overshadowing, and neighbourhood character. We assess all of this at concept stage.

Where do I start if I want to build on my Maidstone property?

Start with a property assessment. RD Building Design reviews your block against the Maribyrnong Planning Scheme and provides a clear written summary of what you can build, including extensions, <a href="/backyard-buildings/granny-flats/">granny flats</a>, and dual occupancy potential.

Start with a conversation

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

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