Healthy Homes Standards: What Northland Property Owners Need to Know

Since 1 July 2025, all rental properties in New Zealand must comply with the Healthy Homes Standards. For Northland property owners and landlords, this means ensuring your rental properties meet minimum requirements for heating, insulation, ventilation, moisture management, and draught stopping. Non-compliance can result in penalties of up to $7,200 per tenancy.

The Five Standards

1. Heating

Landlords must provide one or more fixed heaters that can directly heat the main living room to at least 18 degrees Celsius. The heater must be an acceptable type (heat pump, wood burner, pellet burner, or fixed electric heater of sufficient capacity). Portable heaters, unflued gas heaters, and open fires do not meet the standard.

The required heating capacity is calculated based on the size of the living room, insulation levels, and climate zone. Northland falls in Climate Zone 1, which has the lowest heating requirement in New Zealand, but a correctly sized heat pump or wood burner is still typically needed for most living rooms.

2. Insulation

Ceiling and underfloor insulation must meet minimum R-values. For Northland (Zone 1):

Location	Minimum R-value (existing)	New installation R-value
Ceiling	R 2.9	R 2.9 (or R 3.3 for new builds)
Underfloor	R 1.3	R 1.3

Existing insulation that meets the 2008 standard (R 1.9 ceiling, R 0.9 underfloor) is acceptable if it was installed correctly and remains in reasonable condition. However, any new or replacement insulation must meet the higher values above.

3. Ventilation

Every habitable room must have at least one window or door that opens to the outside and can be fixed in the open position. Kitchens must have an extractor fan with a minimum diameter of 150mm that vents to the outside. Bathrooms must have an extractor fan that vents to the outside (not into the roof space).

4. Moisture Ingress and Drainage

The property must have efficient drainage for stormwater, surface water, and groundwater. Gutters and downpipes must be in good repair. Where there is an enclosed sub-floor space, a ground moisture barrier (polythene sheet) is required if the ground is damp.

5. Draught Stopping

All unreasonable gaps or holes in walls, ceilings, windows, floors, and doors that cause noticeable draughts must be blocked. This includes gaps around windows and doors, holes where pipes or cables penetrate walls, and gaps in flooring.

What Work Is Typically Needed in Northland Homes?

Based on our experience upgrading rental properties across Northland, the most common compliance work includes:

Heat pump installation (most common solution for the heating standard) - $3,000 to $5,000 installed
Ceiling insulation top-up or replacement - $1,500 to $4,000
Underfloor insulation installation - $2,000 to $5,000
Bathroom and kitchen extractor fans - $500 to $1,500 per fan
Ground moisture barrier installation - $1,500 to $3,000
Draught stopping (seals, weatherstrips, gap filling) - $500 to $2,000

Total compliance cost for a typical Northland rental that needs work across multiple standards ranges from $5,000 to $15,000.

Exemptions

Some properties are exempt from certain standards. Common exemptions include:

Properties where insulation cannot be practically installed (e.g., concrete slab floors, flat roofs with no ceiling cavity)
Heritage-listed buildings where compliance would damage heritage values
Properties undergoing major renovation (temporary exemption during works)

Exemptions must be documented and disclosed to tenants in the tenancy agreement.

Landlord Obligations

As a landlord, you must:

Ensure the property meets all five standards before a new tenancy begins
Include a signed compliance statement in the tenancy agreement
Maintain compliance throughout the tenancy
Keep records demonstrating compliance
Provide compliance information to tenants within 21 days if requested

How Henare Construction Can Help

We provide Healthy Homes compliance assessments and upgrade work for landlords across Northland. Our service includes assessing your property against all five standards, providing a clear report on what work is needed, quoting the upgrade work, and completing all installations. We can also provide a compliance statement template and documentation to support your tenancy agreements.

Common Questions

Frequently Asked Questions About Healthy Homes Standards

All rental properties in New Zealand must comply with the Healthy Homes Standards as of 1 July 2025. This applies to all new, renewed, and existing tenancies. If your rental property does not currently comply, you are already in breach and should arrange compliance work as soon as possible.

Landlords who do not meet their obligations under the Healthy Homes Standards are in breach of the Residential Tenancies Act 1986. Penalties can be up to $7,200 per tenancy. Tenants can also apply to the Tenancy Tribunal for compliance orders and compensation for any health impacts caused by non-compliant conditions.

Total compliance costs typically range from $5,000 to $15,000 depending on the current state of the property. A property that already has insulation and just needs a heat pump and extractor fans may cost $4,000 to $6,000. A property needing insulation, heating, ventilation, and moisture barrier work could cost $12,000 to $15,000.

Not necessarily. The standard requires a fixed heater of sufficient capacity to heat the main living room to 18 degrees Celsius. A heat pump is the most common and efficient solution, but a compliant wood burner, pellet burner, or fixed electric panel heater of adequate capacity also meets the standard. The required capacity depends on room size and insulation levels.

If your existing insulation was installed under the 2008 regulations (minimum R 1.9 ceiling, R 0.9 underfloor) and remains in reasonable condition with no significant gaps or damage, it is acceptable under the Healthy Homes Standards. However, any new or replacement insulation must meet the higher current values (R 2.9 ceiling, R 1.3 underfloor for Northland).

Healthy Homes Standards