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About Us

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Valley Workshop’s philosophy is to build homes that are efficiently built, where the materials used are sourced from local suppliers and the finished product is a light filled aesthetically pleasing home that enriches the lives of the occupants. Low carbon, low impact, high happiness.

Valley Workshop was established  by father and daughter team, Warren French and Penelope Haley. We offer an integrated approach to design and construction that considers, operational and embodied energy of a building and its components, light, space and consumer well being. Through careful consideration of these elements negative impacts on the environment caused by construction is being reduced.

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Valley Workshop focus is to create beautiful buildings through the seamless integration of architecture and high performance thermally efficient engineering.

The values of collaboration, innovation and quality are central to Valley Workshop relationships with its clients and their project requirements.

Design is in everything we do.

We carefully assess and individually approach the design process for each project.

We collaborate with our clients to discover their requirements, analyse the site and develop an optimum design response to the project. Our flat packed and structurally insulated panel construction systems have been developed to allow us to explore endless design possibilities in the delivery of prefabricated building outcomes.


We are innovators and enjoy working with clients to explore prefabricated applications for a variety of building types. From our Westbury based design workshop, our in-house design and build team works closely with our clients to individually design and deliver high quality, prefabricated projects. Valley Workshop team comprises highly skilled design and building professionals. Key team members include:

Warren French – Architect/Builder

Warren is the principal architect at Valley Workshop and is a registered architect and builder. A keen interest in progressing Australia’s building industry to have a more sustainable approach to building and include systems modelled on the likes of building in the northern hemisphere. Warren has 30 years experience in the design and delivery of residential, commercial, development projects in Australia.

Penelope Haley – Director/Dip Build, B.Ed

Penelope is Director of Valley Workshop with qualifications in education and building. She is experienced in the client side project manager with several years of experience in the planning and delivery of residential projects in Tasmania. Penelope has an appreciation for contemporary design, sustainability and lightly constructed housing in Australia.

Andrew Zacharek – Carpenter

Andrew is an experienced carpenter with 20 years experience in residential and commercial construction in Tasmania. With a high level of attention to detail, Zac’s project experience ranges includes heritage architecture and high end residential projects. Zac has a PHD and a passion for the evolution of housing in Australia.

Mark French – Carpenter

Mark has qualifications in carpentry and a fine arts degree. Mark is instrumental in applying our building systems onsite.

Charles Muggeridge – Workshop Prefabricator

With qualifications in both education and design, Charles has a keen appreciation for efficiency and sustainable building practices. Charles manages the workshop team to deliver quality prefabricated modules.

Jesse Mcdonald – Apprentice Carpenter

Jesse has a gift for working with timber. He is the the essential part of the team that builds the components to our houses.


+ Environmental

Valley Workshop’s objective is to deliver intelligent building solutions that minimise impact on the environment.

By combining our engineered building system with careful design we are able to deliver buildings with a higher sustainability outcome. Features of our system include:

Energy Efficiency

Minimised Site Impacts


+ Performance

Valley Workshop’s building system outperforms traditional prefabrication.

In collaboration with Frontier Engineering, Valley Workshop’s building system has been developed to deliver superior environmental performance.

Structurally Insulated Panels

We are use the most innovative technologies available in Australia to date in the form of structurally insulated panels. These reduce thermal leakage in a building, thus reducing the life cycle costs when compared with a conventionally built home.

We have improved the structurally insulated panel and making it more environmentally friendly, a petrochemical free structurally insulated panel (free of polystyrene).

Our SIPs have;

We are an Australian first to be delivering this to our clients.

Reduced Thermal Bridging.

Valley Workshop’s building system includes an internal and external vapour barrier. Traditional thermal insulation separates the indoor and outdoor environments.

The temperature difference between the two climates attempts to equalise through air flow across the building structure. The inclusion of an internal and external layer of building wrap significantly improves the thermal performance of the building envelope, a key advantage of Valley Workshop’s building system compared to traditional construction and other prefabricated systems.

Low Carbon.

Embodied energy is the measure of total energy used to convert raw materials to building products. Timber has the lowest embodied energy of any major building material. Specifically developed around timber framed construction, Valley Workshop’s building system uses significantly less embodied energy as compared to steel or aluminium framed or masonry structures. By example, on a weight for weight basis, aluminium requires 1500% times the energy to produce and steel requires 300% times the energy to produce in comparison to timber. In addition timber stores atmospheric carbon and therefore acts as a greenhouse sink actively reduces the amount of carbon released into the atmosphere. In this way Valley Workshop’s building system offers a reduced environmental impact as compared to masonry construction and other steel prefabricated systems. We source our timbers from local Tasmanian suppliers, resulting in our materials have less carbon miles. Through intelligent manufacturing we are a leading example of how the industry practices in Tasmania should progress for a more sustainable forest industry in Tasmania.


+ Timber

Timber – the perfect natural building material.

All of our buildings are timber framed and adaptable to a range of internal and external cladding materials.

Timber is a far superior insulator than brick, concrete, aluminium and steel. It is renewable and economical. All of our timber is sourced from either local Tasmanian plantation or sustainably managed forests.

For commercial applications timber framing offers the versatility and cost efficiency of lightweight construction.

It is adaptable to a range of site conditions through footing systems such pad footings, bored piers and strip footings.
Timber has significant less embodied energy than other common building materials.

Our timber wall cladding uses short lengths created as a by-product of machining full length weatherboards, our design for use of these short boards avoids sending offcuts from this process to land fill.

Our buildings are handcrafted from our Westbury workshop.

Each project is supervised by our architect, construction and project manager, individually built by our in-house construction team and delivered in close consultation with our onsite build team and the client.

Our established workshop combines the best of traditional carpentry techniques with the precision of modern production facilities. Through this approach we are able to exceed site based build quality and construction tolerances.


+ Production

Our buildings are handcrafted from our Westbury workshop

Each project is supervised by our architect, construction and project manager. House components are individually built by our in-house construction team and delivered in close consultation with our design team and the client.

Our established workshop combines the best of traditional carpentry techniques with the precision of modern production facilities.


+ Best Practice

Through our advanced prefabrication techniques we are able to deliver the following benefits, as compared to traditional site based construction:

Faster construction timeframes

Better build quality

Greater project value