Heating There must be fixed heating devices, capable of achieving a minimum temperature of at least 18°C in the living room only. Some heating devices are inefficient, unaffordable or unhealthy and will not meet the requirements under the heating standard.
Insulation The minimum level of ceiling and underfloor insulation must either meet the 2008 Building Code, or (for existing ceiling insulation) have a minimum thickness of 120mm. Ventilation must include openable windows in the living room, dining room, kitchen and bedrooms. Also an appropriately sized extractor fan(s) in rooms with a bath or shower or indoor cooktop.
Moisture ingress and drainage Landlords must ensure efficient drainage and guttering, downpipes and drains. If a rental property has an enclosed subfloor, it must have a ground moisture barrier if it’s possible to install one.
Draught stopping Landlords must stop any unnecessary gaps or holes in walls, ceilings, windows, floors, and doors that cause noticeable draughts. All unused chimneys and fireplaces must be blocked.
1 July 2021 – From this date, private landlords must ensure that their rental properties comply with HHS within 90 days of any new tenancy.
1 July 2021 – All boarding houses must comply with the HHS.
1 July 2023 – Kāinga Ora – Homes and Communities and registered Community Housing Provider houses must comply with the HHS.
1 July 2024 – All rental homes must comply with the HHS.