Designs that fit your home and lifestyle

Design 21 Architecture is committed to delivering high‑quality building designs and attentive customer service at fees that align with client budgets.

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designs that respond to who you are

Shaping homes around the way you live, the life you want and the land around you, we design homes that feel right and stay comfortable, practical, and purposeful.

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17

Years of successful
work

Design Grounded in Place and People

Design 21 Architecture is a Building Design practice based in Heatherton, Melbourne. We create custom home designs for a range of clientele with sustainable and site specific principles at the heart of our design process.

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Helping you build the home you want

MORE ABOUT US

Design21 Architecture helps you build, extend, or renovate with a design‑led but realistic approach. With more than 17 years of experience, we listen closely, work with you on layouts and materials, and guide you through every step of the process.

Architecture

Interiors

planning

Services We Provide Our Clients

  • Building Consultations

    Guidance that helps you clarify ideas, define your scope, and align budget with design intent for an individualised building scope.

  • Concept Design

    Early‑stage layouts and spatial strategies that turn your brief into a practical, site‑responsive customised design.

  • 3D Generated Modelling

    Immersive 3D models that bring your future home to life, letting you walk through layouts, and visualise material choices before construction begins.

  • Documentation

    Clear, detailed architectural drawings and documentation prepared to industry standards, giving you and your builder technical references for every stage of the project.

  • Planning & Building Approval

    Support through planning schemes and building regulations to help you navigate approvals efficiently and move confidently toward construction.

  • Contract Administration

    Ongoing support throughout the construction phases to manage documentation, monitor progress, and ensure the project aligns with agreements, timelines, and quality expectations.

WHY CHOOSE DESIGN21?

High quality designs that meet expectations

  • We’re passionate about the designs we create and are committed to delivering quality for the people we create them for.
  • We offer realistic services within a specified budget.
  • We provide estimates through a comprehensive network of building professionals.

Open and transparent communication with principal designer

  • We provide upfront quotations for each stage of a design and documentation process, including the total cost to begin a building project.
  • We carefully selected consultants to suit all types of projects. Fees are reviewed and discussed in an open and transparent manner with all clients.

Responsive communication throughout the design and building process

  • We are a small, personable practice that builds close, collaborative relationships with our clients.
  • We always provide transparent communication with principal designer.
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our creative projects

A collection of built homes and areas where design, practical living, and careful detailing come together into real, lived‑in environments.

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How Does It Work
When You Become a Client

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FREE CONSULTation

  • Meet onsite to discuss the project and your requirements and assess feasibility.
  • Provide a detailed quotation for your project.

1

Develop Client Brief

  • Work through a detailed brief to ensure we encapsulate your project requirements and budget.
  • Perform detailed site analysis. Inspect, assess and measure the site for design considerations.

2

Design

  • Create a unique personalised design concept that response to your site and brief.
  • Prepare Schematic Design for your project.
  • Explore the form and function of the concept through various mediums.
  • Consider material selections, internal layout and appropriate construction techniques.
  • Create computer generated drawings and images to bring the project to life.
  • Obtain building estimates to ensure the design is in line with your budget.

3

Finalise & Document

  • Prepare all necessary drawings, internal layouts and schedules for each specific project.
  • Arrange integration of consultants’ designs with design documentation to move forward with the building and approval process.

4

OVERSEE PROJECT IMPLEMENTATION

  • Collate, submit and negotiate all relevant permits and approval applications on your behalf.
  • Recommend professional, reliable and high quality builders to suit your project.
  • Analysis & negotiated building quotes and discuss with you.
  • Onsite meetings with you & your builder, we identify and provide building design solutions.
  • We remain active throughout the construction process.
  • Maintain on site inspections to help achieve an efficient & cohesive build.

5

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Strong design starts with a clear, build‑ready plan.

Get in touch to start with a custom plan to match your site and budget.