The lowdown on what your Kitchen & Bathroom renovation will ACTUALLY cost you in New Zealand
As of 2025, the average cost to renovate a kitchen or bathroom in Christchurch, New Zealand can vary widely based on size, materials, and complexity — but here’s a realistic guide based on current industry averages.
Kitchen Renovation Costs (2025)
TypeDescriptionAverage Cost (incl. GST)
Basic. Small kitchen, flat-pack cabinetry, laminate benchtops, standard appliances $25,000 – $35,000
Mid-Range. Custom cabinetry, stone benchtops, quality fittings, mid-range appliances $35,000 – $55,000
High-End. Bespoke design, high-spec appliances, engineered or natural stone, feature lighting. $55,000 – $90,000+
Note: Structural work, moving plumbing/gas, or adding a scullery can push costs significantly higher.
Bathroom Renovation Costs (2025)
TypeDescriptionAverage Cost (incl. GST)
Basic. Cosmetic update, existing layout retained, standard fittings $18,000 – $25,000
Mid-Range. Full renovation, tiled shower, upgraded fittings, improved storage $25,000 – $35,000
High-End. Custom layout, underfloor heating, high-spec tiles and fittings $35,000 – $50,000+
Again, structural changes, plumbing relocation, or installing luxury finishes (like stone tiles or custom vanities) will increase your total cost.
Additional Costs to Factor In
Design fees (interior designer or architect): typically 8–15% of project cost
Council consent fees (if required): from $1,500–$3,500+
Contingency budget: always allow 10–15% for unforeseen costs
A recent Kitchen & Bathroom renovation we completed in Canterbury, New Zealand.
Learn more about our Renovation process here…
Armstrong Interiors prides itself on specialising in Interior Renovations. Our experienced team is here to help give advice and work through feasibility schemes to ensure that you don’t overcapitalise on your build and your expectations can be a reality.
Get in touch today to discuss with us your renovation dreams!
Images credits: Hazel Redmond Photography, Anna McLeod Photography