About us

ABOUT office of regional ARCHITECTure

Office of Regional Architecture is an accredited architectural practice offering a full range of architectural and planning services to our clients in regional Western Australia.

The practice, based in the heart of the Wheatbelt at Brookton has completed a variety of building and planning projects across the Wheatbelt, Great Southern and South West regions over the past decade

Our specialisations include:

  • Retail, Cafés, Galleries & Offices
  • Planning Applications & Negotiation
  • Landscape Architecture Projects
  • Community & Not for Profit Projects
  • Heritage Projects

Office of Regional Architecture has a contemporary approach to design.  We undertake a holistic exploration of all the relevant issues to arrive at appropriate design solutions which are functional, sustainable and beautiful.

We do this by leading family, small business and community Clients through a detailed and thorough planning, design and construction process in order to create an architectural solution, which not only meets their budget and suits their functional needs, but also improves the quality of their daily life and brings delight to all its inhabitants through their use of the building, garden or urban space.

We specialise in providing appropriate solutions to complex design problems and for difficult sites, and are experienced at negotiating intractable planning and building compliance issues with the regulatory authorities to mutually satisfactory resolution.

Office of Regional Architecture


Rosalie Pech Eva – Director & Principal Architect

Grew up in the Great Southern region on a farming property near Gnowangerup – Educated at St Mary’s Anglican Girls School in Karrinyup.

As an undergraduate studied Arts & Law, which has given her a useful understanding of property and contract issues.

Graduated from the University of Western Australia with Bachelor of Architecture (B.Arch), with 1st Class Honours in 1991.

After several years of experience in Metropolitan firms and in Local Government, gaining architectural and statutory planning experience, became Registered as a Practising Architect #2150 by the Architects Board of Western Australia.

Created the practice Rosalie Pech Eva Architect in 2010 in order to share the benefits of high quality architectural design with regional clientele.

Lives on a farming property outside of Brookton, Western Australia with husband Gary Eva and son Henry, enjoying all the benefits of a rural life.

Rosalie is passionate about all aspects of Architecture, Art and Design, focusing on contemporary projects suited to the current needs of regional people and local communities, incorporating considered design and reflecting the joy and uniqueness of living in regional Western Australia.

Rosalie Pech Eva

tuan ngo – Project Architect

Tuan is a registered architect with experience in a wide range of projects with various awards. He graduated from Curtin University with a master’s thesis focused on the relationship between humans and nature in the urban environment.

His passion for urban ecology has led him to explore Australian native fauna and flora especially endemic species of the Swan Coastal Plain and beyond.

Growing up in Vietnam, Tuan has fond memories of his family home in Ho Chi Minh City and his mum’s family in Hanoi and his dad’s rural town – Nghe An. He greatly benefits from this experience in practising architecture. He loves creative frugal architecture, regenerative design and the community’s role in urban development.

In his free time, he works on the family vegetable patch, a share community herb garden, a giant compost heap, and various home renovation projects.



Tuan Ngo

Desiree haumann – administrative officer

Desireé started working at Office of Regional Architecture in April 2024. Desireé and her husband moved from South Africa to Australia in January 2022. They ended up in Brookton where they like the country side and the friendly community.

Desireé did her Degree in Accounting back in South Africa. She recently started studying Interior Design as part of her passion.

Desireé enjoys being active, she likes going to the beach, loves her cats and likes to explore Australia with her husband.

Desireé Haumann

thomas flentri – Architectural technician

Thomas has recently graduated from Curtin University with a Bachelors of Architecture and is currently studying his Masters of Architecture Degree. Since graduating he has worked in construction labouring and continued his study into his Masters Degree course while working at ORA. Thomas has a passion for cultures, his combination of having family abroad and experienced a lot of traveling has shaped his view on architecture as one of his many interests and career paths.

Away from architecture, Thomas loves sports such as Muay Thai (Thai boxing) and weightlifting and loves his morning coffees.

Thomas Flentri

megan rex – graduate architect

Megan is a graduate architect who finished her masters studies at the University of Western Australia in 2019. Since graduating she has worked for various practices in Perth and has since found her way back to her roots working on regional projects with the Office of Regional Architecture. Megan grew up on a farming property near Wagin and attended boarding school in Perth.

Megan has a passion for good design and an interest in the way the design of spaces can affect people’s emotions and behaviours. Outside of Architecture Megan enjoys hockey, swimming, and spending quality time with friends and family.

Megan Rex



To get the best results for our Clients, we have developed a straight-forward, easily navigated process:

  1. On contacting us, we interview you, either over the phone or via our online Project Enquiry Form, to obtain sufficient information about you and your project in order to assess how we can find solutions to the particular issues you face. If we cannot assist you with your particular project, we undertake to refer you to alternative service providers who may specialise in your area of need.
  2. If we assess that we are able to make a valuable contribution to the success of your project, we develop a Scope of Services outlining all the tasks that are involved to arrive at an appropriate solution for it, together with a Fee Proposal setting out your financial investment in that solution and the terms and conditions by which we undertake our work.
  3. You then consider our no-obligation proposal, and if satisfied that we are able to assist you, we sign a Client-Architect Agreement setting out everything that is involved for both parties.
  4. We undertake the work involved as set out in the Scope of Services, with your approval obtained at every stage of the process.
  5. The stages involved are as follows:
    • Preliminaries
    • Feasibility Study
    • Concept Design
    • Schematic Design
    • Design Development
    • Construction Documentation
    • Contractor Selection
    • Contractor Administration
    • Post Construction Services
    • Additional services may be provided if necessary by arrangement
  6. We co-ordinate any specialist consultants required (structural, mechanical or hydraulic design, Building Code of Australia compliance, land & quantity surveying) and deal with any local Shire authority requirements including Planning Applications and Building Permit documentation.
  7. We obtain competitive tenders for the building work from qualified Builders and administer the Building Contract during the construction period and beyond

This process works well because it is detailed, comprehensive and thorough, all due diligence investigation is done and no regulatory or compliance issues are overlooked. We provide you with checklists and regular updates to show you how your project is progressing, and you will always know what is coming next, the timeline and the costs involved. Furthermore, we work to an agreed budget for cost of the building work at every stage, so certainty is assured.

The ORA team