Architect designed house plans that you can purchase, customise and build to Passivhaus principles for comfort and health.
Built on site from prefabricated components our homes are more generous and cost effective than factory built and can be erected in hard to get to locations.
Optimised designs for quick council approvals and efficient construction on site with minimal waste.
We have a large portfolio of designs. Get in touch to see which one is right for you.
Featured Design - Ancillary Dwelling
A backyard dwelling creates opportunity
Care for an elderly relative at home, accommodate adult children or earn additional income. The possibilities are endless.
With generous bedrooms and living spaces our backyard home provides room for family, guests or tenants to make their own.
Optimised design for quick council approvals and efficient construction on site from prefabricated components.
Purchase the plans or let our builder deliver the home to Leanhaus standards of airtightness and performance.
70sqm plot ratio area
Deemed to comply maximum allowed in WA
8.5m x 9m
Site area of approximately 12mx12m required
2 bed 1 bath or
1 bed 1 bath aging in place
The modern granny flat.
With an internal floor area of 70sqm, this plan is designed for local government areas where Ancillary Dwellings are deemed to comply. The two generous bedroom design with raked ceilings provides a flexible space for living, working, creating or renting for extra income. Optimised design for comfort, health and efficient construction on site from timber framing components. Enhance your project by adding fixed or operable awnings, a pergola or deck. Roof pitch may be customised for a more traditional look.
High Raked ceilings
Full Kitchen & Laundry
Passive House Performance
Double Glazing, Airtightness with HRV, and well insulated.
Two large queen sized bedrooms or spacious 1 bed design , suitable for aging in place
Full size kitchen with island bench
Laundry included
High raked ceilings
Leanhaus efficient design and construction for health and comfort.
Airtightness, high levels of insulation, double glazed windows, heat recovery ventilation built in.