Renovation Budget Calculator

Kitchen renovation costs in New Zealand vary widely by scope and specification. A budget kitchen renovation — replacing cabinet doors, benchtops, and appliances but keeping the same layout — typically costs $15,000-30,000. A mid-range full kitchen renovation with new cabinetry, stone benchtops, and quality appliances runs $30,000-60,000. A high-end kitchen with custom cabinetry, premium stone benchtops ($3,000-8,000 for stone alone), premium appliances, and significant layout changes can cost $60,000-150,000 or more. The biggest cost drivers are cabinetry (typically 30-40% of budget), benchtops, appliances, and whether you require plumbing and electrical changes. Always use a Licensed Building Practitioner for structural changes. Source: Registered Master Builders NZ masterbuilder.org.nz; CoreLogic NZ.

Bathroom renovation costs in New Zealand depend on bathroom size and the extent of work. A basic bathroom refresh (new fixtures, tiles, and fittings but no layout changes) typically costs $10,000-20,000. A full bathroom renovation including new floor plan, tiling, shower, bath, vanity, and toilet costs $20,000-50,000 for an average NZ bathroom. An ensuite renovation costs $15,000-40,000 depending on size and specification. Key cost drivers include waterproofing (required under Building Code E3/AS1), tiling (labour-intensive), plumbing rough-in changes, and ventilation. Waterproofing is a building consent trigger if it involves a wet area over 1m2 in some councils. Always use a licensed plumber and tiler for waterproofed wet areas. Source: Registered Master Builders NZ masterbuilder.org.nz; Building Performance buildingperformance.govt.nz.

Home renovations in New Zealand can add value, but the return on investment depends heavily on renovation type, location, and property market conditions. Kitchen and bathroom renovations typically return 50-80% of cost in added property value according to industry data — meaning a $40,000 kitchen renovation may add $20,000-32,000 to the home's value. Adding an extra bedroom or bathroom generally provides a stronger return, as NZ buyers pay a premium for additional bedrooms and bathrooms. Cosmetic upgrades (paint, carpet, lighting) provide the best percentage returns for money spent. Location significantly affects returns: renovations in high-demand Auckland suburbs return more than in slower markets. Structural changes and extensions can add significant value if they address specific property limitations. Source: Registered Master Builders NZ masterbuilder.org.nz; CoreLogic NZ property data.

The industry standard for renovation contingency in New Zealand is 10-20% on top of the quoted or estimated project cost. For straightforward renovations in newer homes, 10% is usually adequate. For older homes (pre-1970s), higher contingencies of 15-20% are recommended because hidden issues such as asbestos, substandard wiring, rot, and undersized foundations are more likely to be discovered once work begins. Bathroom and kitchen renovations have higher contingency rates than cosmetic projects because walls are opened and concealed plumbing and electrical work is revealed. Always confirm your contingency percentage with your builder at the start of the project and hold these funds in reserve rather than spending them upfront. Source: Registered Master Builders NZ masterbuilder.org.nz; CoreLogic NZ.