About dsarchitecture

dion seminara architecture is made up of a number of people who bring their different strengths and talents to the practice so you get the best possible result for your project.


Dion Seminara – Principal (Architect)

Dion is an award winning architect with over 20 years of practical industry experience in design and construction.  He is recognised as a highly qualified industry professional who delivers innovative design solutions for his clients.

After working for a number of reputable Brisbane based architectural firms, Dion commenced private practice in 1993.  In this time he completed two major residential landmark projects – Glentworth, a $6.5 million renovation to a National Trust house and the well-known $4 million contemporary new home at Mt Nebo.

In 2003 Dion founded dion seminara architecture, also known as dsarchitecture. His expertise with residential design, with an emphasis on renovations of character homes, has earned him a reputation as one of Brisbane’s residential architecture, interior and landscape specialists.

Dion is also a Licensed Home and General Building Contractor.



alexandra_lowson_lgAlexandra Lowson – PA / Office Administrator

Alexandra effortlessly juggles the roles of Personal Assistant to Dion and Office Administrator.  She is also a professional photographer and a number of the images on the website are her work.

Alexandra draws upon over 15 years’ experience in roles including PA to the Regional Director of Universal Leaf Tobacco in Zimbabwe, Marketing Administrator for New Zealand Winegrowers in Auckland and Project Co-Ordinator at Eden Park over the Rugby World Cup 2011 in New Zealand.






lilian_arli_lgLillian Arli – Interior Designer/Project Designer

Lillian is a seasoned Project Designer with experience in both small and large scale residential and commercial architecture sectors.

Before joining dsarchitecture in 2014 Lillian worked for Nettleontribe (Sydney), Denton Corker Marshall (Jakarta) and Ellerbe Becket (Minneapolis).

Key projects that she has been involved in include Lifestyle Working Collins Street (Docklands), Doltone House Even Centre (Pyrmont), Workplace 6 (Pyrmont) and The East Apartment (Edgecliff).

Lillian has a strong passion in architectural and interior design as well as construction details.  Her energy and enthusiasm for projects leads her to creatively explore design solutions that will.




thomas_hartigan_lgThomas Hartigan – Graduate of Architecture

Thomas graduated from the University of Queensland with a Masters of Architecture in 2012.

He then worked and travelled throughout Europe before returning to his hometown of Brisbane to focus on a career in residential architecture.

Since joining dsarchitecture, Thomas has been a valuable addition to the team bringing a fresh approach with creative and innovative design solutions.






leese_seminara_lgLeesa Seminara – Landscape Designer

With a passion for creating garden designs that provide additional living areas, Leesa’s skill and expertise in landscape design will add the finishing touches to your custom new home build or renovation.  Her services can also be engaged for an independent project.

Our focus is on enhancing our clients’ lives through better design rather than winning awards.  But we have still won a few of them.

The awards listed below were won by Dion Seminara’s previous architectural practice, ‘ArcStyle’.

  • 2002 HIA Residential – Award Winner (Renovations & Additions)
  • 2001 HIA Residential – Award Winner
  • 2001 HIA Innovative Use of Steel – Award Winner & National Finalist
  • 2000 Smart Housing that is energy efficient, universally designed, affordable, safe & secured
  • 2000 Smart Housing for Inner City Residential Design
  • Tropical Housing Design Competition Award

Quest Media

Design earns accolade – download article

Queensland Homes

20 years of trust – download article

Australia’s Best Houses

Australia’s Best Houses – August 2013
Australia’s Best Houses – February 2013

In the spotlight

dion seminara architecture – in the spotlight.

Brisbane News

A number of my client’s projects have been featured in a variety of publications over the years. My own home has attracted a considerable amount of media attention including television segments and articles, like this article here in the Brisbane News. Read Brisbane News online (page 36/37)

The Sunday Mail – ‘Homeground’ Section

“Bigger really is better for rejuvenated family home” (19 February 2012)

Architecture & Design Website

“A flood of new ideas” (17 June 2011)

Townsville Bulletin – ‘Property’ Section

New design offers solution to floods (in Townsville Bulletin, 09 July 2011)

Cairns Weekend Post – ‘Real Estate’ Section

Flood-safe design (in Cairns Weekend Post, 02 July 2011)

Ararat Advertiser – ‘General News’ Section

Flood resistant housing design (in Ararat Advertiser, 01 July 2011)

Weekend Gold Coast Bulletin – ‘Home’ Section

Flood resistance a winner (in Weekend Gold Coast Bulletin, 25 June 2011)

Singleton Argus – ‘General News’ Section

Flood resistant homes feature in competition (in Singleton Argus, 24 June 2011)

‘Quest’ Newspaper

Modern makeover magic (in ‘Quest’ Newspaper, 4 March 2011) Dion always had designs on architecture (in ‘Quest’ Newspaper, 25 July 2007)

‘bMag’ Lifestyle Magazine

Renovation Rescue (in ‘bMag’ lifestyle magazine, Feb 2009)

‘Brisbane Circle’ Lifestyle magazine

Designing the Deck for Indoor Outdoor Living (in ‘Brisbane Circle’ lifestyle magazine, Nov 2008) Designing the Home Office (in ‘Brisbane Circle’ lifestyle magazine, Oct 2008) Thinking of Renovating… get some advice first (in ‘Brisbane Circle’ lifestyle magazine, Sept 2008) Renovation… Key to better living (in ‘Brisbane Circle’ lifestyle magazine, Aug 2008)

‘Brisbane News’ Lifestyle Magazine

After the dark ages (in ‘Brisbane News’ lifestyle magazine, April 2009) High and Mighty (in ‘Brisbane News’ lifestyle magazine, April 2008) Jolly’s Lookout (in ‘Brisbane News’ lifestyle magazine, March 2008)

‘Brisbane Renovator’ Lifestyle Magazine

Here’s why you must have a Lifestyle Assessment before you start renovating (in ‘Brisbane Renovator’ lifestyle magazine, Issue 6)

The Courier Mail – ‘Home’ Section

Feature Article ‘Judging a book by its cover’ for the home section (originally published in ‘The courier mail’ Newspaper, June 26-27 2010) Pooled Resources 2010 Feature Article ‘Full House’ for the home section (originally published in ‘The courier mail’ Newspaper, Septemeber 3-4 2005)

‘Style’ Lifestyle magazine

Dion Seminara (in ‘Style’ Lifestyle magazine, March 2007)

‘Lifestyle’ Magazine

Modern Style… Old Charm (in ‘Lifestyle’ magazine, Oct/Nov 2003)

‘Renovate & Extend’ Magazine

Face Value (in ‘Renovate and Extend’ lifestyle magazine, Issue 2.3) A natural progression (in ‘Renovate and Extend’ lifestyle magazine, Issue 1.3)


dion seminara architecture | Brisbane architects committed to satisfying client living + working needs
Renovation and unique new home specialists, multi-residential & fitouts | Servicing all suburbs of Brisbane and surrounds