Real cost ranges for Sydney, NSW, Australia, priced in AUD. 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 SydneyTile, 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 SydneyDetached 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 SydneyWhole-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 SydneyMaterial 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 SydneyComposite 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 SydneyFraming, 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 SydneyGunite, 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 SydneyPrep 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 SydneyHardwood, 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 SydneyAsk Baily about your Sydney renovation and you will not be passed around. Sydney is our first Australian market because the New South Wales renovation economy is large, regulated, and tough on homeowners who try to navigate it alone. hipages, Oneflare and the other quote-aggregator sites will happily take your job and spray it to a dozen tradies by SMS. What Baily does is different. We introduce one Sydney builder who already holds an unrestricted NSW Home Building Licence, who has worked in the particular neighbourhood your property sits in, and who understands the Bushfire Attack Level assessment your council will ask for, the Heritage NSW rules in conservation streets, and the coastal-management overlay that catches most Eastern Suburbs and Northern Beaches projects. One pro per homeowner, from first message through defects liability. No dozen strangers, no dodgy quotes, no chasing trades who have gone dark. The builder we introduce is the builder who finishes the job.
Read the full Sydney 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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