Healthy Homes Standards - What Canterbury Investors Must Know

The Healthy Homes Standards have been fully in force for all private residential tenancies in New Zealand since 1 July 2024. For Canterbury landlords, compliance is not optional. Here is what the standards require, what they cost, and what the consequences of non-compliance are.

The Five Standards

Heating: All rental homes must have a fixed heating device capable of heating the main living room to at least 18 degrees Celsius. The device must be a heat pump, wood burner, pellet burner, or other fixed heater - a portable heater does not qualify. The required heating capacity is calculated based on the room's volume and insulation level. Heat pumps are the most common compliant solution in Canterbury, typically costing $2,500-$4,500 installed for a standard living room size.

Insulation: Ceiling and underfloor insulation must meet 2008 building code standards where it is reasonably practicable to install. Homes built since 2008 generally have compliant insulation already. Older homes frequently require top-up ceiling insulation and/or underfloor insulation installation. Insulation upgrade costs vary significantly by property: ceiling insulation for a standard Canterbury home typically costs $1,500-$3,500; underfloor insulation $1,500-$4,000 depending on access.

Ventilation: Kitchens and bathrooms must have extractor fans that vent outside the building. Bedrooms and living rooms must have openable windows of at least 5% of floor area. Most Canterbury properties already meet the window standard, but extractor fans are sometimes missing or non-compliant in older properties.

Moisture and drainage: Rental properties must have an efficient drainage system for the disposal of storm water, surface water, and ground water. Subfloor moisture barriers must be installed where reasonably practicable in enclosed subfloor spaces. Drainage issues can be among the most expensive compliance items for older Canterbury properties.

Draught stopping: Unused fireplaces must be blocked, and unnecessary gaps in floors, walls, ceilings, and windows must be sealed to prevent unwanted draughts.

Compliance and Fines

Landlords must provide a Healthy Homes compliance statement with every new tenancy agreement and must be able to demonstrate compliance on request. Tenants can apply to the Tenancy Tribunal if a landlord fails to comply with Healthy Homes Standards. Fines of up to $7,200 can be awarded against non-compliant landlords. The Tenancy Tribunal has increasingly awarded exemplary damages alongside fines in cases of deliberate or repeated non-compliance.

The Investment Perspective

For investors, Healthy Homes compliance is a cost that must be included in the acquisition analysis of any older Canterbury property. A building inspection should specifically assess compliance status before purchase. Non-compliant properties require a compliance plan with accurate cost estimates before proceeding. Properties that are already compliant command a premium in both sale price and rental market - well-maintained, warm, dry properties let faster and retain tenants longer, directly improving net yield.

Healthy Homes Standards information from tenancy.govt.nz and IRD. For general information only. Always consult a qualified property manager and building inspector for compliance advice specific to your property.