What's the difference between MBIE and REA in NZ?
Short answer
MBIE (Ministry of Business, Innovation and Employment) administers the Building Act, the LBP scheme, and most construction-sector regulation. REA (Real Estate Authority) regulates real estate agents under the Real Estate Agents Act 2008. They cover different parts of the property journey: REA looks at how a house is bought and sold; MBIE looks at how it's built.
Source: MBIE — mbie.govt.nz. Updated May 2026.
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Check a builderKey facts
- MBIE — building, construction, employment, business
- REA — real estate agents only
- Different complaints processes
- MBIE oversees Building Practitioners Board, EWRB, PGDB
- REA's Real Estate Disciplinary Tribunal handles agent breaches
Who to complain to about what
Real-estate agent didn't disclose a known defect — REA. Builder did poor work — MBIE (for the LBP) plus Disputes Tribunal (for money). Mortgage broker misled you — Financial Markets Authority (separate regulator). Lawyer caused loss — NZ Law Society.
Each regulator handles its own profession. Sending the wrong complaint to the wrong regulator wastes 6-12 weeks while it gets bounced around.
Knowing the rules is half the job. The other half is knowing who you're hiring. Check any NZ builder against the public record: company status, licensing and insolvency notices, from the official NZ sources.
Related questions
Sources: MBIE — mbie.govt.nz; Real Estate Authority — rea.govt.nz. General information for NZ homeowners, not legal advice. Building rules change and vary by council, so confirm critical details on the official source before acting. Last updated 2026-05.