Can I Remove a Non-Load-Bearing Wall Myself in NZ?

Yes, in many situations a NZ homeowner can remove a non-load-bearing internal wall themselves — but there are important steps to take before you swing a sledgehammer. You need to be confident the wall is genuinely non-load-bearing, understand your building consent obligations, and recognise that some parts of the work (electrical, plumbing) are legally restricted to licensed tradespeople.

First: Is the Wall Actually Non-Load-Bearing?

This is the most critical question, and getting it wrong can have serious structural consequences. A load-bearing wall transfers the weight of the roof, upper floors, or other structural elements down to the foundations. A non-load-bearing wall (sometimes called a partition wall) simply divides space.

Some general indicators that a wall may be non-load-bearing:

• It runs parallel to the floor joists above (rather than perpendicular)
• It sits on a suspended timber floor with no beam or foundation beneath it
• It is a lightweight internal partition with no ceiling load above
• It does not align with walls on floors above or below

However, these are guides only — not guarantees. Many NZ homes, especially older villas, bungalows, and 1960s–80s houses, have walls that look like partitions but carry real loads. The only reliable way to confirm is to have a Licensed Building Practitioner (LBP) or structural engineer inspect the wall before you start. You can find qualified local builders at tradedirectory.co.nz.

Do You Need a Building Consent?

This is where many homeowners get caught out. Under the NZ Building Code, removing a wall is building work, and most building work requires a consent — unless it qualifies as an exemption under Schedule 1 of the Building Act 2004.

Schedule 1 includes an exemption for repair, maintenance, and minor alterations to existing buildings, which can cover removing a non-load-bearing internal wall in a residential building — but only if:

• The wall is genuinely non-load-bearing
• The work does not affect the structural integrity of the building
• No plumbing, drainage, or fire-rated construction is involved
• The work complies with the Building Code

Important: The exemption does not mean you can ignore the Building Code — it just means you may not need to apply for consent first. Always confirm with your local council before starting, as interpretations can vary. If there is any doubt, apply for consent. MBIE Building Performance has detailed guidance on Schedule 1 exemptions.

What's Inside the Wall? Check Before You Cut

Before removing any wall, you must identify what's running through it. Common services include:

• Electrical wiring — very common in internal walls
• Plumbing pipes — especially in walls near kitchens, bathrooms, or laundries
• Gas lines — less common in walls but possible
• Ventilation ducts

Use a stud finder with AC detection, or hire an electrician to trace circuits. You can also carefully remove a section of skirting board and drill a small inspection hole to look inside.

Electrical Work — Restricted

Any work on your home's fixed wiring is restricted electrical work under NZ law and must be carried out by a registered electrician. This includes disconnecting, rerouting, or extending circuits. Check the Electrical Workers Registration Board (EWRB) for what homeowners can and cannot do. A registered electrician must also issue a Certificate of Compliance for the work.

Plumbing and Gas — Restricted

If the wall contains water supply pipes, drains, or gas lines, any work on these is restricted to a licensed plumber, gasfitter, or drainlayer registered with the Plumbers, Gasfitters and Drainlayers Board (PGDB). Do not attempt to cap, move, or reconnect these services yourself.

The Removal Process (DIY Steps)

Once you've confirmed the wall is non-load-bearing, checked consent requirements, and had any services safely dealt with by licensed tradespeople, the physical removal is relatively straightforward:

1. Remove skirting boards and architraves — use a flat bar and work carefully
2. Strip the lining — GIB plasterboard can be scored and snapped, or removed in sections. See GIB for plasterboard handling tips
3. Remove the noggings and studs — cut fixings and remove timber framing
4. Remove the top plate and bottom plate — patch the ceiling and floor as needed
5. Make good — patch, stop, sand, and paint the ceiling, walls, and floor to blend in

Safety note: Older homes (pre-1990s) may contain asbestos in textured ceilings, wall linings, or floor tiles. If you suspect asbestos, stop work and contact a licensed asbestos assessor. WorkSafe NZ has guidance on identifying and managing asbestos safely.

Finishing Up

Once the wall is gone, you'll likely need to:

• Patch and paint the ceiling line and adjoining walls — Resene and Dulux both have good advice on colour-matching and finishing
• Repair or replace flooring where the bottom plate sat
• Tidy up any exposed wiring or pipes (by licensed tradespeople)

When to Call a Professional

Call a Licensed Building Practitioner (LBP) if:

• You are not 100% certain the wall is non-load-bearing
• The wall runs perpendicular to floor joists or aligns with walls above
• The project involves any structural changes, even minor ones
• You want peace of mind and a professional sign-off

Always use a registered electrician for wiring and a licensed plumber or gasfitter for pipes and gas. You can find trusted local tradespeople across all these trades at tradedirectory.co.nz.

For more on your rights and obligations as a homeowner doing building work, visit Licensed Building Practitioners (LBP) and MBIE Building Performance.

Sources & Further Reading

• MBIE Building Performance — Schedule 1 Exemptions
• Licensed Building Practitioners (LBP)
• Electrical Workers Registration Board (EWRB)
• Plumbers, Gasfitters and Drainlayers Board (PGDB)
• WorkSafe NZ — Asbestos
• BRANZ — Building Research