Fences and pool fences in New Zealand

Fences in New Zealand sit under three sets of rules at once — the Fencing Act 1978 (cost sharing and disputes), your District Plan (height limits and style), and the Building Act (consent only above certain heights). Pool fences are a separate beast with their own regime, covered further down. Knowing where the consent line sits keeps a straightforward boundary fence from turning into a paperwork job.

Height rules — when consent kicks in

Height is set by Schedule 1 and your District Plan together. As a rough ladder:

• Up to 2m — no Building Consent (Schedule 1 item 19).
• Up to 2m — usually no Resource Consent in side or rear yards.
• Up to 1.2–1.5m on road frontage — most District Plans limit visibility from the street.
• Over 2m — Building Consent required, plus a structural check for wind loading.
• Over 2.5m — Resource Consent likely, plus an engineered design.

Cost sharing under the Fencing Act 1978

On a shared boundary, your neighbour must pay half the cost of an “adequate” fence — meaning one that’s reasonably satisfactory for the purpose. You can build something fancier, but the neighbour only pays half of “adequate”; you absorb the extra.

The process runs like this:

1. Serve a written Fencing Notice on the neighbour, giving 21 days, specifying the design and the costs.
2. If you reach agreement, get on with the job.
3. If there’s no agreement, it goes to the Disputes Tribunal (up to $30k) or the District Court.

Pool fences — always consented and inspected

Pool fences are governed by the Building (Pools) Amendment Act 2016 and the Building Act 2004. Every residential pool needs a compliant barrier, the council inspects it every 3 years, and the heights, gaps and gate rules are completely different to a normal fence.

• Minimum 1.2m high barrier, measured from the ground or from any climbable surface.
• Gaps in the barrier under 100mm — the sphere rule, like F4/AS1.
• No climbable elements within a zone 900mm vertical and 1200mm horizontal of any pool side.
• Self-closing, self-latching gate, with the latch 1500mm above ground (out of children’s reach).
• The gate must open away from the pool.
• Spas and above-ground pools also need compliant fencing, unless they have a lockable rigid cover.

Common fence types and rough costs

Typical NZ residential builds and indicative material rates:

• Paling (vertical timber) — 1.8m H4 posts at 1.8–2.4m centres, 100×25 or 100×38 palings, overlapped or butt-jointed. Around $120–180/lm material.
• Horizontal slat — premium look, 90×19 or 90×42 boards. Around $200–280/lm material.
• Composite (Trex and similar) — wood-plastic composite, low maintenance. $300–400/lm.
• Steel rail and timber — galvanised post-and-rail framework with timber infill. Common rural.
• Colorsteel panel — pre-painted steel sheets, industrial or commercial look. $150–220/lm.
• Pool/glass — frameless glass panels on stainless spigots. Premium. $400–600/lm.

Posts — concrete, not dirt

Setting H4/H5 posts directly into concrete is standard NZ practice: a 600mm diameter × 600mm deep hole, 17.5 MPa concrete, with a slight slope at the top of the concrete to shed water. Don’t put posts in plain dirt — they’ll rot from the moisture line down within 5–10 years.