NZ Concrete Group

ThermaCast™ Designs

Concrete House Designs NZ

Explore our range of concrete home designs — from efficient family homes to bespoke architectural builds. Every design is engineered for ThermaCast construction and can be adapted to your site, your lifestyle, and your budget.

Designed for Concrete

Our designs are not timber floor plans adapted for concrete — they are conceived from the outset to take advantage of what concrete construction offers. Large open spans without intermediate posts, exposed concrete feature walls, integrated thermal mass orientation, and structural forms that would be impossible in timber framing.

We work with leading architectural designers who understand concrete construction. Whether you choose one of our proven designs or bring your own architect, our team ensures the ThermaCast system is optimised for your home.

Design Categories

Browse by home type to find a starting point for your build.

Single-Level Family Homes

Single-Level Family Homes

Open-plan living with three to four bedrooms, designed for flat to gently sloping sites. These designs maximise the thermal mass benefits of ThermaCast with north-facing living areas and generous glazing.

150 – 220m² | 3–4 bed | Single level
Two-Storey Executive Homes

Two-Storey Executive Homes

Larger homes with upstairs bedrooms and ground-floor living. The concrete lower level provides excellent acoustic separation from the sleeping areas above. Suits urban and semi-rural sites.

220 – 350m² | 4–5 bed | Two storeys
Architectural Builds

Architectural Builds

Bespoke designs that push the boundaries of concrete construction — cantilevered forms, curved walls, double-height spaces, and large glass panels. ThermaCast's in-situ method makes complex geometry achievable.

250m²+ | Custom | Multi-level
Compact & Retirement Homes

Compact & Retirement Homes

Efficient single-level designs ideal for downsizers, retirement living, or smaller sites. Low maintenance concrete construction is particularly well suited to long-term, easy-care living.

90 – 150m² | 2–3 bed | Single level
Rural & Lifestyle Properties

Rural & Lifestyle Properties

Designs for rural settings that embrace the landscape — wraparound terraces, large garaging, and integration with outdoor living. Built to handle exposed sites and higher wind zones.

180 – 300m² | 3–5 bed | Single or two storey
Multi-Unit & Duplex

Multi-Unit & Duplex

Concrete construction is ideal for attached dwellings where fire and acoustic separation are critical. ThermaCast party walls exceed the Building Code requirements for inter-tenancy separation.

80 – 150m² per unit | 2–3 bed | Attached

Bringing Your Own Design?

If you already have plans or are working with your own architect, we can assess the design for ThermaCast construction and provide a detailed quotation. Our engineering team works alongside your designer to ensure the concrete wall system integrates seamlessly with the architectural intent.

We recommend involving us early in the design process. Early collaboration ensures the design leverages the full potential of concrete construction and avoids costly redesign later.

Start Your Concrete Home Design

Whether you want to explore our designs or bring your own, the first step is a conversation.

Discuss Your Design