Real cost ranges for Auckland, New Zealand, priced in NZD. Every row is what homeowners actually spend across the scope spectrum — the low end is a pull-and-replace on the existing footprint, the high end is a full custom build with premium finishes.
~1 min readUpdated 18 Apr 2026
Cabinets, counters, appliances, and plumbing/electrical updates drive the range. The top of the band reflects full layout changes and premium finishes; the bottom holds for pull-and-replace scopes on the existing footprint.
Scope yours with Baily in AucklandTile, fixtures, and waterproofing are the big drivers. Primary and ensuite bathrooms with walk-in showers or freestanding tubs sit near the top of the band; hall baths come in closer to the bottom.
Scope yours with Baily in AucklandDetached units and garage conversions vary most by square footage, foundation type, and utility runs. Where local law does not recognize ADUs, this row maps to the nearest annex / granny-flat / laneway equivalent.
Scope yours with Baily in AucklandWhole-home scope covers all trades plus permitting, structural, MEP, and finishes. Historic properties, listed buildings, and seismic-retrofit markets sit well above the median.
Scope yours with Baily in AucklandMaterial choice (asphalt shingle, tile, standing-seam metal, membrane) dominates the range. Pitch, access, and city-specific wind/fire codes add the rest.
Scope yours with Baily in AucklandComposite decking, hardwood, pavers, and concrete slab are the main price bands. Elevated decks and outdoor-kitchen integrations push the high end.
Scope yours with Baily in AucklandFraming, insulation, egress windows, and waterproofing move together. Adding a bathroom or full kitchen pushes the cost well above the base finish scope.
Scope yours with Baily in AucklandGunite, vinyl-liner, and fiberglass each have distinct price bands. Spa integration, water features, and decking lift the top of the range.
Scope yours with Baily in AucklandPrep work (siding repair, pressure wash, priming) is the hidden driver. Coastal and high-UV markets use specialty coatings that cost more but last longer.
Scope yours with Baily in AucklandHardwood, LVP, tile, and stone span a wide range. Subfloor repair and leveling for old construction add meaningful cost on top of the finish material.
Scope yours with Baily in AucklandAsk Baily about your Auckland remodel and you will not be passed around. Auckland is our first New Zealand market because homeowners across the isthmus, the North Shore, Waitakere and the eastern suburbs are dealing with a housing stock that carries a real weathertightness history, a seismic-strengthening regime for older buildings, and the Auckland Unitary Plan's complex residential zoning. Platforms like Builderscrack and NoCowboys will happily route your job to a dozen tradies by text, but that model collapses the moment the homeowner needs someone who can actually diagnose a leaky home, propose remediation under the Building Act 2004 and see the council consent through to Code Compliance Certificate. Baily does it differently. We introduce one Auckland builder holding the appropriate Licensed Building Practitioner registration from MBIE, who has worked on properties of your whānau's vintage and your specific council zone. One pro per homeowner from the first message through practical completion. No quote spray, no chasing tradies who have gone dark. The builder we introduce is the builder who signs the CCC application with you.
Read the full Auckland guideCost ranges are only half the picture. See how one-builder scoping compares to a bid fan-out before you talk to either.
Tell Baily what you are planning. You will get one vetted local builder, not a pool of strangers. No lead auction, no resold contact details.
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