Designing custom dream homes for Brisbane’s successful professionals, business owners and entrepreneaurs.
We will help your realise your perfect renovation or new home.


post war homes
1950s, 60s, 70s – 2000s

new home

custom styles | new contemporary | new characters | sloping sites


environmentally friendly | energy efficient | low-impact design | universal housing


custom design solutions | luxury residences | large, private estates

About Dion Seminara Architecture

As specialist home design architects, we create architectural designs, landscape designs and interior designs to produce stunning custom dream homes. We are dedicated to optimising your home’s design to create the ultimate at-home experience that truly makes you happy. We take the time to understand you and your needs to create tailored homes that work seamlessly with your lifestyle.

As well as designing beautiful custom homes, we also project manage your build from start to finish, taking the hassle and stress out of your project. Our service packages can be tailored to your individual project requirements. We can provide a complete design service that works best for you.


Being a licenced builder and registered Brisbane architect, I ensure all our designs are both beautiful, and practical. You will work collaboratively with myself and my specialist Brisbane architects to ensure all your needs are catered for. We will exceed your expectations with exceptional attention to detail and tailored design outcomes.

Our 30 years of experience as Brisbane architects helps us create outstanding designs that take advantage of Brisbane’s sub-tropical climate. We have designed over 700 beautiful dream homes for our clients, so we are sure we can help you too. You won’t regret working with us.

– Dion Seminara, Your Principal Architect

Client Benefits…

We’ll help you create:

  • A home that is comfortable, safe and secure.
  • A place for everything you value, to ensure tidiness and spaciousness.
  • Living spaces, both indoor and outdoor, that function exceptionally.
  • A design that looks great, that you are happy to come home to.
  • A home that takes advantage of Brisbane’s climate: naturally cool and breezy in Summer, and light-filled and warm in Winter.
  • A true asset: both financially and personally.

Why choose dion seminara architecture?


We Listen to Your Ideas

No two projects are the same. That’s becausewe take the time to listen to your ideas as collaboration often creates the best solutions. It’s the little unique things that make your house, a home.


Creative Eye with a Practical Brain

As well as being a registered Brisbane architect with over 30 years’ design experience, Dion is also a licensed building contractor. You can trust that our creative solutions and advice comes with practical

outcomes for the best possible built project.
Read more

Cutting Edge Technology

Test your home before it is even built. We provide you 3D modelling, virtual walkthroughs, virtual reality and full-size floorplan projections so you can physically experience your concept design. Easily view different

design options and make design changes through unlimted 3D views.
Read more
Architectural Design

Architectural Design

Architectural Design

We can develop a tailored architectural design that suits your project needs. Create a home that doesn’t just look incredible, it feels incredible to live in too.

Interior Design

Interior Design

Interior Design

We’ll design an interior that suits your personality and lifestyle using quality materials, fixtures and finishes that will look great and stand the test of time.

Landscape Design

Landscape Design

Landscape Design

Landscape design is often overlooked in the design process, but we consider it from the very beginning. Create outdoor living that compliments your lifestyle for year round enjoyment.

Project Management

Project Management

Project Management

Our job isn’t done once we’ve perfected the design. Take the stress out of construction phase with our project management services. Avoid common pitfalls and ensure your project stays on track and on budget.

Client Testimonials

Have you seen our reviews? We’re honoured to have helped so many Brisbane families realise their dream renovations and built projects.
Read some of our client reviews and stories to see how we can help you, too.

How To Begin…

We have a clear design process that will turn your project dreams into a reality.

We start with our Design Advice Service, a quick and easy way to get started. This is an orally presented service at your home or land, where you will work with expert Brisbane architects and designers to identify possible solutions to your design problem.

Following our Design Advice, we can fully manage your project through our comprehensive 6-Step Process and additional services.

Our 6-Step Architectural Process
Our complete design process takes you from the Design stages, through the Building Approval and Documentation stages, and all the way to Tendering your project to builders. This process can be built upon with our additional services:

Do you have questions?

Confused about where to start with your home design? Need specific advice about your project? Want to learn more about what specialist architects do? We’ve got you covered…

Free Resources to Help You Get Started

We have a wide range of resources you can access for free, providing you with the most informative advice and tips you should know when in the process of designing or renovating your property. No matter what stage of the process you are currently in, these resources will benefit you.

7 Mistakes to Avoid
When Renovating Your 7+ Year Home
7 Mistakes to Avoid When Renovating Your 7+ Year Home 3D Cover

Planning on renovating your home? Download 7 Mistakes To Avoid Resource to avoid common mistakes and understand what’s involved.

The 7 Most Popular
Interior Styles in Australia Today
The 7 Most Popular Interior Styles in Australia Today 3D Cover-1

There are many different interior styles. In this guide, we focus on the 7 most popular styles, how to achieve them and things to avoid.

Project Planning Pack
For Your 7 to 15 Year Home
Planning Your Forever Home - Simple Steps to Ensure Your Success 3D Cover (2)

If you’re completing a building or renovation project, this guide will help you plan ahead and avoid common mistakes.