CREATING SUSTAINABLE HOMES

The value case for Homestar

Getting a Homestar rating requires planning, but it won’t end up making a house unaffordable. In fact, affordability is one of Homestar’s key advantages.

  • If you’re building, achieving a 6 Homestar rating adds just 1.5% to the purchase price of a typical three-bedroom house – or nothing at all if the house is slightly smaller than today’s larger homes.
  • Homestar reduces the cost of running a home, especially in terms of energy and water savings. Over seven years (the expected home ownership period), homes rated 5 and 6 Homestar enjoy annual savings on energy and water bills of $573-$729 per year.

Most new homes built to Building Code will only achieve a 3-4 Homestar rating scale, and most existing New Zealand homes only achieve a 2-3 Homestar rating scale. Ratings of 6 and 7 Homestar are the most attainable for a standard New Zealand house – and who wouldn’t want to live in a home that’s warmer, sustainable and more efficient?

The studies below demonstrate the value case for Homestar, whether you’re building your own home or developing on a larger scale.

For homeowners

Homestar Case Study Cost Benefit Analysis

This 2013 study, carried out by environmental consultancy eCubed, analysed the energy and water savings achieved in homes rated 5, 6 and 7 Homestar. It also looked at the increased market value of high Homestar-rated houses. This study was based on an earlier version of homestar

For industry

Homestar Cost-Scoring Appraisal for Auckland Council

This 2013 study, by architects Jasmax and quantity surveyors Rawlinsons, examined potential cost and specification implications associated with building 5, 6 and 7 Homestar homes. They found there is little or no barrier to building 6 Homestar homes, as specified in the Proposed Unitary Plan; required changes in design and specification can be achieved using widely available products and without major changes to construction methods. This study was based on an earlier version of homestar

Homestar Cost-Scoring Appraisal for Christchurch City Council

This 2013 study, by architects Jasmax and quantity surveyors Rawlinsons, examined potential cost and specification implications associated with building 5, 6 and 7 Homestar homes. They found there is little or no barrier to building 6 Homestar homes; required changes in design and specification can be achieved using widely available products and without major changes to construction methods. This study was based on an earlier version of homestar



Are you a builder or developer?

Register a project here

Ask us about volume certification here

Registered on an earlier version and want to move to v4? Contact us here

Are you a buyer and want a quality home?

See a list of builders and developers that have delivered projects here

Why build to homestar?