Healthy Homes Assessment and Certificate NZ: Cost, Who Can Issue One, and How to Stay Compliant

Since 1 July 2025, all private rental properties in New Zealand must comply with the five Healthy Homes standards. There is no grace period left, and non-compliance is an unlawful act the Tenancy Tribunal can fine you up to $7,200 for. So the question most landlords ask is simple: do I need a Healthy Homes certificate, and how do I get one?

For a deeper walk-through of each standard, see our complete Healthy Homes standards guide and the compliance checklist.

The five standards

The Healthy Homes standards set a minimum for five things in every rental:

1. Heating. The main living room needs a fixed heater that can reach 18 degrees, sized to a minimum heating capacity. That capacity is calculated from the room dimensions and the climate zone the property sits in, so a Wellington living room needs more heating than the same room in Whangarei.
2. Insulation. Ceiling and underfloor insulation that meets the 2008 Building Code, or the minimum R-values set out in the standard.
3. Ventilation. Openable windows in every habitable room, plus extractor fans in kitchens and bathrooms.
4. Moisture ingress and drainage. Efficient drainage and guttering, and a ground moisture barrier under any enclosed subfloor.
5. Draught stopping. No unreasonable gaps or holes that cause noticeable draughts.

A small number of properties qualify for a partial or time-limited exemption (for example where the work is physically impractical), but exemptions are narrow and must be documented.

Is there a "certificate"?

Strictly, no. The law does not issue a certificate the way a Warrant of Fitness works for a car. What it requires is a Healthy Homes compliance statement: a written record, included with every new or renewed tenancy agreement, that states how the property meets each of the five standards. You are responsible for that statement being accurate.

That is where a professional assessment helps. A qualified Healthy Homes assessor will inspect the property, measure the heating capacity, check insulation and ventilation, and give you a written compliance report. It is not legally mandatory, but it is the cleanest evidence you can hand the Tribunal if a tenant ever complains, and it removes the risk of you getting the heating calculation wrong. My strong recommendation: get a professional assessment done at least once, early in the property's life as a rental, so you have a baseline report on file. After that you can self-confirm at each tenancy as long as nothing has changed.

What does an assessment cost?

Expect roughly $150 to $400 for a standard residential assessment, depending on the city, the size of the property, and whether the assessor also issues an insulation statement. Auckland and the main centres sit at the higher end. It is a deductible expense against your rental income.

How RentManager keeps you compliant

RentManager tracks all five standards per property, not as a tick box but as a live record:

• It calculates the minimum heating capacity your main living room needs for its actual climate district, so you know whether your heater is big enough before a tenant raises it.
• It records the date each standard was last confirmed and reminds you to reconfirm when a new tenancy starts or 12 months have passed, because compliance is a point-in-time thing and the standards can drift as a property ages.
• It generates the Healthy Homes compliance statement to attach to the tenancy agreement.
• It follows the current New Zealand law, so when the standards change you are not left guessing.

The reminder matters more than landlords think. Healthy Homes is a liability that is easy to miss: a heater that was compliant when the tenancy started can fall short after a change to the room, and the moment a tenant complains the Tribunal looks at whether you had evidence. Treating it as a tracked, reconfirmed obligation, with one professional assessment on file, is how you stay on the right side of it. For the official overview, see Tenancy Services on what a landlord needs to know (there is an equivalent page for what a tenant needs to know), and the full Healthy Homes hub.

See it working: open the live demo and look at the Healthy Homes view for a seeded property, including the heating-capacity calculation for its climate zone. No signup.