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Healthy Homes Standards NZ

Healthy Homes Standards NZ

Healthy Homes Standards NZ 2026: What Auckland Landlords Need to Know

Latest New Zealand Tenancy Regulations | Updated October 2026

1. Healthy Homes Standards: Full Compliance Is Now Mandatory

Since 1 July 2025, all private residential rental properties in New Zealand have been required to comply with the Healthy Homes Standards, unless a valid exemption applies.

This requirement applies to both new and existing tenancies. Landlords can no longer rely on the previous 90-day or 120-day compliance periods when starting a new tenancy.

The regulations establish minimum standards in five important areas:

  • Heating

  • Insulation

  • Ventilation

  • Moisture ingress and drainage

  • Draught stopping

Failure to comply may result in financial penalties, enforcement action and proceedings before the Tenancy Tribunal.

2. The Five Healthy Homes Standards Explained

Heating Requirements

Rental properties must have one or more qualifying fixed heaters capable of adequately heating the main living room.

The heating capacity must be calculated according to the property's requirements, including room dimensions and other relevant factors.

Heat pumps are commonly used in Auckland rental properties, although other approved heating systems may also comply.

Landlords should ensure that heating systems are correctly sized, functioning properly and regularly maintained.

Insulation Requirements

Rental homes must have ceiling and underfloor insulation that meets the applicable standards, unless an exemption applies.

Existing insulation may require upgrading or replacement if it does not meet the minimum requirements.

Properties with limited roof cavities or restricted access may qualify for specific exemptions, subject to the regulations.

Ventilation Requirements

Adequate ventilation helps reduce condensation, dampness and mould.

Under the Healthy Homes Standards:

  • Habitable rooms generally require openable windows, doors or skylights that meet minimum ventilation requirements.

  • Kitchens must have qualifying mechanical extraction to remove cooking moisture and fumes.

  • Bathrooms must have qualifying mechanical extraction to remove moisture.

  • Extractor fans must discharge air outdoors rather than simply recirculate it inside the property.

For new extractor fans installed after 1 July 2019, the standard generally requires:

Kitchen: Minimum 150 mm diameter, including ducting, or an exhaust capacity of at least 50 litres per second.

Bathroom: Minimum 120 mm diameter, including ducting, or an exhaust capacity of at least 25 litres per second.

Different provisions can apply to qualifying existing fans and continuous mechanical ventilation systems.

Important for Auckland apartment owners: Body Corporate restrictions, shared ventilation systems and limited access to external walls can make compliance more complicated. However, an apartment is not automatically exempt because it is part of a Body Corporate building.

Professional assessment may be necessary to establish whether an exemption applies.

Moisture Ingress and Drainage

Rental properties must have adequate drainage systems to prevent water entering the building or accumulating beneath it.

This includes maintaining appropriate gutters, downpipes and drainage systems.

Properties with enclosed subfloor areas generally require a suitable ground moisture barrier where installation is reasonably practicable.

Draught Stopping

Landlords must address unreasonable gaps and holes that cause noticeable draughts.

Common problem areas include:

  • Gaps around external doors

  • Poorly sealed windows

  • Damaged door seals

  • Open fireplaces

  • Gaps in walls, floors or ceilings

Regular inspections and timely maintenance help ensure ongoing compliance.

3. Latest Regulatory Amendments: September 2025

Two technical amendments to the Healthy Homes Standards took effect on 25 September 2025.

Amendment One: Ceiling Insulation Exemptions

A partial exemption was reinstated for certain properties with limited ceiling space, where qualifying compensating insulation measures are provided elsewhere in the home.

This may be relevant to some properties with low-pitched roofs or restricted roof cavities.

Amendment Two: Clarification of Overlapping Regulations

The amendments clarified how the Healthy Homes Standards take priority over specified overlapping or conflicting requirements in the Housing Improvement Regulations 1947.

This helps avoid conflicting regulatory requirements concerning heating, ventilation and drainage.

For properties already fully compliant, these technical amendments generally do not require additional work.

4. Healthy Homes Compliance Statements Are Compulsory

Landlords must provide a signed Healthy Homes Compliance Statement with new, renewed or varied tenancy agreements.

The statement must accurately describe the property's compliance with the applicable standards, including relevant details about heating, insulation and ventilation.

Landlords must also retain supporting documentation, such as:

  • Healthy Homes assessment reports

  • Heating capacity calculations

  • Insulation information

  • Extractor fan specifications

  • Installation invoices and maintenance records

  • Documentation supporting any claimed exemptions

Tenants may request compliance information, which landlords must generally provide within 21 days.

Failure to include a required compliance statement can result in a financial penalty of up to $500 per tenancy.

5. What Happens If a Rental Property Does Not Comply?

Non-compliance with the Healthy Homes Standards is a breach of landlords' obligations under the Residential Tenancies Act 1986.

Depending on the circumstances, landlords may face:

  • Financial penalties of up to $7,200 for relevant breaches

  • Higher penalties for certain larger-scale landlords

  • Tenancy Tribunal proceedings

  • Compliance notices and enforcement action

  • Orders requiring remedial work

Landlords should not assume that a property remains compliant simply because it passed an assessment several years ago.

Heating equipment, ventilation systems, insulation and building components must continue to meet the applicable requirements.

6. Landlord and Tenant Responsibilities

Healthy Homes compliance is primarily the landlord's legal responsibility.

However, tenants also play an important role in maintaining a healthy indoor environment.

Tenants should use available ventilation and heating appropriately, report maintenance issues promptly and take reasonable steps to minimise avoidable moisture accumulation.

Landlords must ensure that the property and its required facilities remain compliant, and arrange necessary repairs and maintenance.

Condensation or mould should not automatically be treated as tenant negligence. The underlying cause should be assessed before responsibility is determined.

7. How Excella Property Rentals Can Help

At Excella Property Rentals, we understand that property management involves more than simply collecting rent.

Our focus is on helping landlords protect their investments while meeting their legal obligations.

We can assist property owners with:

  • Reviewing existing Healthy Homes compliance documentation

  • Coordinating professional assessments where required

  • Arranging maintenance and repairs with suitable contractors

  • Liaising with Body Corporate managers regarding apartment compliance issues

  • Monitoring property conditions through routine inspections

  • Maintaining relevant tenancy and compliance records

  • Keeping landlords informed about important changes to tenancy regulations

With extensive experience managing Auckland residential properties, including CBD apartments and suburban rental homes, we understand the practical challenges that property owners face.

Our goal is to provide professional, proactive and reliable property management services.

8. Is Your Auckland Rental Property Fully Compliant?

Even if your rental property previously passed a Healthy Homes assessment, ongoing maintenance and accurate compliance records remain important.

If you are uncertain about your property's compliance status, it is worth reviewing the documentation and arranging further professional advice where necessary.

Excella Property Rentals is here to help Auckland landlords manage their rental properties with confidence.

Contact our team to discuss your property management requirements.

Excella Property Rentals Ltd

Auckland Property Management Specialists

Phone: 021 388 368

Professional Property Management | Auckland CBD | North Shore | Greater Auckland

Disclaimer: This article provides general information about New Zealand's Healthy Homes Standards as at October 2026. Individual properties may be subject to specific requirements or exemptions. Property owners should refer to Tenancy Services and obtain professional advice where necessary.

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