Knockdown Rebuild Greenwich — From $450K All-In
Fixed-price knockdown rebuild in Greenwich 2065. Demolition, new home, all Lane Cove Council approvals under one contract. No surprises, no variation trail.
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A knockdown rebuild in Greenwich costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Lane Cove Council approvals, and construction under one fixed-price contract.
New Home on Your Greenwich Block
KDR in Greenwich is rare and heritage-restricted — Heritage Conservation Areas cover most streets. Where non-contributory replacement is viable, harbour-fall engineering dominates: suspended slabs, rock excavation $25K–$60K, structural underpinning. Demolition $50K–$90K. Realistic premium turnkey $2.5M–$4.5M for 320–480m² rebuild. Pre-construction 7–9 months.
Most Greenwich blocks run 500–1,200m² on Class M (sandstone ridges) / H–E (river fall) ground. Knockdown rebuild on 1880s–1940s heritage stock here usually pencils out better than deep renovation once you tally up structural, electrical, plumbing, insulation, and waterproofing upgrades against full replacement value. Median price band: $3.5M–$8.0M. Nearest rail is Wollstonecraft (1.5 km, ferry).
Buildana manages the complete knockdown rebuild process in Greenwich — from site assessment and architectural design through to DA or CDC approval, demolition management, and fixed-price construction to handover. One builder, one contract, one new home.
Read our KDR Cost Guide 2026 or use the Renovation vs KDR Calculator to compare options.
- New home in Greenwich from $450K
- Lane Cove Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Class M (sandstone ridges) / H–E (river fall) soil — engineered slab design included
- Typical blocks 500–1,200m² in Greenwich
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Wollstonecraft (1.5 km, ferry) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Why Knockdown Rebuild in Greenwich?
Greenwich is the harbour-fall peninsula between Greenwich Point, Manns Point and Bay Road on Sydney Harbour. Federation mansions, inter-war heritage and contemporary harbour-fall builds on 500–1,200m² blocks. Heritage Conservation Areas cover most streets. Sandstone-dominant with substantial harbour fall. North Sydney LGA boundary east at Wollstonecraft. Greenwich ferry wharf. Premium for direct harbour outlook.
Greenwich's established streetscape and median house prices of $3.5M–$8.0M reflect a premium location within Lane Cove. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Transport access via Wollstonecraft (1.5 km, ferry) connects Greenwich to the wider Sydney network. 1880s–1940s heritage-era housing stock across Greenwich is prime for knockdown rebuild — replacing dated layouts and materials with modern, NCC-compliant homes that maximise block potential. Ground conditions (Class M (sandstone ridges) / H–E (river fall)) across Greenwich are well understood by local builders — Buildana's engineering accounts for extremely reactive soil movement.
KDR in Lane Cove works the village R2 detached stock and inland Lane Cove North — Heritage Conservation Areas restrict scope on Greenwich, Longueville, Northwood and Linley Point peninsulas where extension/restoration dominates. Sandstone-dominant soil; rock excavation $20K–$50K typical, deeper on river-fall lots. Demolition $40K–$80K with asbestos prevalent in pre-1990 stock. Realistic premium turnkey $1.6M–$3.5M for 280–450m² build. Bushfire BAL ratings drive material upgrades $15K–$50K on bush-edge lots in Lane Cove West and Riverview. Pre-construction 4–7 months including heritage and tree consents on protected streets.
Planning Controls — Lane Cove Council
Lane Cove LEP 2009 & Lane Cove DCP 2010. R2 Low Density dominates the LGA: FSR 0.5:1, building height 9.5m, front setback 7.5–9m varying by streetscape, landscaped area 35–40%. R3 Medium Density along Burns Bay Road, Longueville Road and the Lane Cove village core permits FSR up to 0.8:1. R4 High Density and B4 Mixed Use along the St Leonards / Crows Nest fringe in Lane Cove North. The 2024 Crows Nest Metro SEPP TOD precinct overlay reaches the south-eastern portion of Lane Cove North, opening density bonuses inside 400m of Crows Nest Metro station. Heritage Conservation Areas cover most older streets in Greenwich, Longueville, Northwood, Linley Point, Lane Cove West, Riverview and parts of Lane Cove village. Tree Preservation Order applies LGA-wide. River-fall and harbour-fall sites on the Lane Cove River and Sydney Harbour peninsulas (Greenwich, Longueville, Northwood, Linley Point) require engineered slab and retaining design — sandstone rock excavation $20K–$60K standard. Lane Cove National Park frontage on Lane Cove West and Riverview adds bushfire BAL ratings on bush-edge lots.
Knockdown-rebuild builder in Greenwich — key facts
- Suburb
- Greenwich, NSW 2065
- Council / LGA
- Lane Cove Council (Lane Cove)
- Primary zoning
- R2 Low Density / R3 Medium (Lane Cove village)
- Typical lot size
- 500–1,200m²
- Soil class
- Class M (sandstone ridges) / H–E (river fall)
- Median house price
- $3.5M–$8.0M
- Home era
- 1880s–1940s heritage
- Typical price range
- $450,000 – $1,200,000+
- Typical timeline
- 14–22 months including demolition
- Approval pathway
- CDC where eligible or DA for complex sites
Building in Greenwich — Local Context
Foundations & Slab Design for Greenwich
Greenwich's ground is extremely reactive clay (Class M (sandstone ridges) / H–E (river fall)). On a 500–1,200m² block, that translates to engineered slab work in the $45,000–$80,000 bracket for a rebuild. Double-check any quote that doesn't itemise the slab — 'slab as per engineering' usually means the builder will hit you with a variation once the soil report comes back. We commission the geotech upfront, before pricing, so the cost in your contract reflects what your block actually needs. If your neighbour's home shows movement cracks above architraves or below window sills, that's a signal worth knowing before you finalise design — Buildana's site assessment looks at adjacent stock too.
Approval Timeline for Greenwich
Realistic timeline for a rebuild in Greenwich: 10–15 business days CDC, or 8–14 weeks DA — depends on the design. Add 2–4 weeks before lodgement for documentation, BASIX certificate, geotech report, and survey if you don't already have one. Construction Certificate is issued separately before works commence.
Cost vs Value in Greenwich
Median sale price in Greenwich is $3.5M–$8.0M. For a rebuild, the decision tree runs through three numbers: build cost, expected post-completion value, and how long you plan to hold. New custom homes in Greenwich re-set the property at the top of the local price band, with new-build premium of 10–20% over comparable established stock. We map this in feasibility before you commit.
Greenwich Housing Stock & What That Means
Most homes in Greenwich were built 1880s–1940s heritage. That puts asbestos risk firmly in play — sheeting, eaves linings, vinyl floor tiles, and pipe lagging are likely. Licensed removal adds $5,000–$25,000 to a rebuild where demolition is involved, and Buildana manages SafeWork NSW notifications, removal, and clearance certificates as part of the contract.
Building Activity in Greenwich Right Now
Greenwich is seeing steady residential activity — 1880s–1940s heritage-era stock is reaching end-of-life on dozens of streets, driving steady knockdown rebuild activity month over month. Buildana sits inside that pipeline — we know what's getting approved, what's stalling, and why.
Builder's Take on Greenwich
Service abolishment and reinstatement in Greenwich typically costs $3K–$8K. Sydney Water cap-off, Endeavour Energy disconnection, gas cap. Cheap KDR quotes often bundle this into "demolition" as a line item worth $1K — which is wrong and gets billed later.
The biggest surprise on KDR for clients is how much the new house improves the suburb feel. Same street, same neighbours, same kids' schools — but the house finally fits. Greenwich residents who KDR rarely regret it; the ones who renovate instead often tell me they wish they'd gone the rebuild path.
Greenwich vs Nearby Suburbs
Greenwich vs nearby suburbs — key metrics for knocking down and rebuilding.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Greenwich2065this suburb | $3.5M–$8.0M | 500–1,200m² | Class M (sandstone ridges) / H–E (river fall) | 1880s–1940s heritage | Wollstonecraft (1.5 km, ferry) |
| Wollstonecraft2065 | $2.8M–$4.5M | 400–700m² | Class M (sandstone) / H–E (Gore Cove fall) | 1900s–1960s | Wollstonecraft |
| Northwood2066 | $4.0M–$8.0M | 600–1,400m² | Class M (sandstone ridges) / H–E (river fall) | 1880s–1940s heritage | Wollstonecraft (3 km, ferry from Longueville) |
| St Leonards2065 | $2.2M–$3.2M | 350–600m² | Class M (ridges) / H to E (Middle Harbour valleys) | 1900s–2000s mixed | St Leonards |
Median price, soil class, and lot size shape build feasibility and final cost. Buildana assesses every site against these and other constraints during the free feasibility stage.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
Cost Guide
| Item | Estimated Range |
|---|---|
| Entry-level single storey KDR | $610,000 – $830,000 |
| Mid-range double storey KDR | $920,000 – $1,280,000 |
| Architectural KDR | $1,280,000 – $1,920,000 |
| Luxury KDR (high-spec finishes) | $1,920,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
We assess your Greenwich block — lot size (typical 500–1,200m²), R2 Low Density / R3 Medium (Lane Cove village) zoning, setbacks, FSR, and existing dwelling condition. Asbestos survey included. You'll know feasibility and budget before committing.
⏱Complete design package: floor plans, elevations, 3D renders, structural engineering, geotech, BASIX, stormwater, and all documentation Lane Cove Council requires. Approval managed start to finish.
⏱Pre-demolition: dilapidation report on adjoining properties (protects you against unfounded damage claims), service disconnections, asbestos clearance, neighbour notification. Then 1–2 weeks of physical demolition with material sorted at site for recycling where possible.
⏱Fixed-price construction: engineered slab, frame, lock-up, fit-out, external works. 8–12 months depending on size. Weekly progress reports with photos and milestone tracking.
⏱Same address, completely different home. Permanent gas, water, electrical, NBN reconnected and tested. Council waste collection re-registered. Mailbox reinstalled. Move-in ready, not move-in plus 100 small jobs.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
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“Buildana built our granny flat in just 12 weeks. Fast approvals, great communication, and a beautiful final product. Highly recommend.”
Fatima Al-Rashid
Liverpool, NSW
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Last updated: 1 April 2026
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Knockdown Rebuild in Greenwich
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