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

Registered building designer for Williams Landing and surrounds

Extensions, granny flats, dual occupancy, and new homes. RD Building Design manages design and permits across Wyndham.

RD Building Design is a registered building design practice covering Williams Landing and Melbourne's wider western suburbs. We manage residential projects from the first conversation through to approved building permit drawings.

Extending on a smaller Williams Landing lot

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 Wyndham 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 Williams Landing 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.

Extending on a smaller Williams Landing 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 Wyndham Planning Scheme controls. RD Building Design works on tight western suburbs sites regularly and knows where the constraints have flexibility.

knockdown rebuild design for Williams Landing 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 Wyndham 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.

Extensions designed for how you live

In Williams Landing, 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 Williams Landing

Planning controls and development potential under the Wyndham Planning Scheme

Council

Wyndham

Planning scheme

Wyndham 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

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

Limited viability

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

Location

19km from Melbourne CBD. Nearest station: Williams Landing.

This summary reflects general planning conditions for Williams Landing 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 Williams Landing 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 Wyndham 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 Williams Landing homeowners

Do I need planning approval to renovate in Williams Landing?

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 Wyndham?

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

Can my Williams Landing 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.

What about adding a second level to my Williams Landing 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.

Should I renovate or knockdown rebuild in Williams Landing?

It depends on the condition of the existing house and the cost-benefit of renovation versus starting fresh. For non-heritage properties, knockdown rebuild is usually an option. RD Building Design can advise on which path suits your situation.

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

Start with a property assessment. RD Building Design reviews your block against the Wyndham 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.

Contact RD Building Design Williams Landing

Ready to talk about your Williams Landing project?

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