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.

Purchase options

  1. Buy the construction plans and manage the approvals and build yourself

  2. Customise the design, we manage the approvals and our builder will deliver the completed home.

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

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.