Do new builds automatically meet the Healthy Homes standards?

Mostly in practice, no in law. There is no blanket new-build exemption: a 2024-built rental answers to the same five standards as a 1924 villa. Recent Building Code requirements mean insulation, ventilation and drainage are normally well ahead of the rental minimums, but "normally" is doing quiet work in that sentence, and two gaps recur.

The two usual gaps

• Heating capacity: builders fit heat pumps for showhome comfort, not necessarily for the standard's calculation on that specific living room. Run the official tool; a large open-plan area with big glazing can demand more capacity than what was installed.
• The paperwork: compliance is demonstrated with records, and a new build generates them all, insulation schedules, heater specifications, ventilation details, then scatters them through a handover folder nobody opens again. New tenancies still need a signed compliance statement drawn from those facts.

The hour worth spending

Before the first tenancy: run the heating assessment for the living room, pull the insulation and ventilation details out of the build documentation, photograph the heater's rating plate, and file the lot against the property. From then on the new build really is the easy case, the facts are good, and now they are findable. The requirements themselves stay with tenancy.govt.nz.