Knockdown Rebuild Rose Bay — From $450K All-In
Fixed-price knockdown rebuild in Rose Bay 2029. Demolition, new home, all Woollahra Municipal Council approvals under one contract. No surprises, no variation trail.
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A knockdown rebuild in Rose Bay costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Woollahra Municipal Council approvals, and construction under one fixed-price contract.
Rose Bay Knockdown Rebuilds
KDR in Rose Bay works post-war non-contributory pockets outside HCAs. Harbour-fall engineering: suspended slabs, rock excavation $30K–$70K. Demolition $55K–$100K. Realistic premium turnkey $3M–$7M for 320–550m² rebuild. Pre-construction 9–12 months including heritage and foreshore consents.
For a rebuild in Rose Bay, the economics are the framing question. Median price $4.5M–$15M; build cost on 300–1,500m² blocks scales by site conditions and specification. Class M (sandstone ridges) / H–E (harbour fall) ground (extremely reactive clay) keeps foundations honest — $45,000–$80,000 band — and blowouts on that line are the single most common reason fixed-price contracts elsewhere don't stay fixed. Buildana itemises the slab, structural engineering, and geotech work upfront so you see the actual cost in the contract. R3 zoning in pockets of Rose Bay opens up dual occupancy potential — worth exploring even if you're not initially considering it.
Buildana manages the complete knockdown rebuild process in Rose Bay — 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 Rose Bay from $450K
- Woollahra Municipal Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Class M (sandstone ridges) / H–E (harbour fall) soil — engineered slab design included
- Typical blocks 300–1,500m² in Rose Bay
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Edgecliff (4 km, ferry to Circular Quay) 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 Rose Bay?
Rose Bay is harbour beach village — New South Head Road spine, harbour beach and ferry wharf, sea plane base. Federation mansions, inter-war flats and harbourside apartments on 300–1,500m² blocks with substantial fall to the harbour. Heritage Conservation Areas cover most streets. Sandstone-dominant soil. Premium for harbour beach and outlook.
Rose Bay's established streetscape and median house prices of $4.5M–$15M reflect a premium location within Woollahra. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Transport access via Edgecliff (4 km, ferry to Circular Quay) connects Rose Bay to the wider Sydney network. 1900s–1940s + apartments-era housing stock across Rose Bay is prime for knockdown rebuild — replacing dated layouts and materials with modern, NCC-compliant homes that maximise block potential. Soil conditions in Rose Bay (Class M (sandstone ridges) / H–E (harbour fall), extremely reactive) are factored into every Buildana foundation design.
KDR in Woollahra is rare and heritage-fraught — Heritage Conservation Areas cover virtually every Paddington terrace street, virtually all of Woollahra village, most of Bellevue Hill, Darling Point, Point Piper, Vaucluse, Rose Bay, Watsons Bay, Centennial Park, Queens Park and parts of Double Bay. Council defaults to retention. Where non-contributory replacement is theoretically viable (uncommon, mostly post-war pockets in Bellevue Hill, Vaucluse, Rose Bay), substantial harbour fall and sandstone-dominant soil drive engineering: suspended slabs, structural underpinning, rock anchoring all standard. Rock excavation $25K–$80K. Demolition $50K–$120K with asbestos prevalent. Realistic premium turnkey $3M–$10M+ for 300–500m² build, peaking on Point Piper, Darling Point and Vaucluse harbour-fall. Pre-construction 9–12 months. We frequently advise extension/restoration over KDR.
Planning Controls — Woollahra Municipal Council
Woollahra LEP 2014 & Woollahra DCP 2015. R2 Low Density covers most residential streets: FSR 0.5–0.6:1, building height 8.5–9.5m, front setback 4–6m varying by streetscape, landscaped area 35–45%. R3 Medium Density along New South Head Road, Edgecliff Road and Bondi Junction fringe permits FSR up to 0.95:1. R4 High Density and B4 Mixed Use centred on Edgecliff and Double Bay village. Heritage Conservation Areas are amongst Sydney's heaviest — Paddington terraces (virtually entire suburb), Woollahra village (virtually entire suburb), Queens Park, Centennial Park and Centennial Parklands frontage, Bellevue Hill mansions, Darling Point peninsula, Point Piper peninsula, Vaucluse harbourside, Rose Bay, Watsons Bay village, parts of Double Bay. Tree Preservation Order applies LGA-wide and is enforced strictly. Substantial harbour-fall sites are the LGA's signature engineering challenge: Darling Point, Point Piper, Vaucluse, Rose Bay, Bellevue Hill north-facing slopes — suspended slabs, structural underpinning, sandstone rock excavation $25K–$80K standard, rock anchoring routine. Foreshore Building Line restricts harbourside building envelopes on most premium lots. Sydney Harbour National Park frontage at South Head (Watsons Bay) adds further heritage and ecological controls.
Knockdown-rebuild builder in Rose Bay — key facts
- Suburb
- Rose Bay, NSW 2029
- Council / LGA
- Woollahra Municipal Council (Woollahra)
- Primary zoning
- R2 Low / R3 Medium / R4 / B2/B4 mixed
- Typical lot size
- 300–1,500m²
- Soil class
- Class M (sandstone ridges) / H–E (harbour fall)
- Median house price
- $4.5M–$15M
- Home era
- 1900s–1940s + apartments
- 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 Rose Bay — Local Context
Foundations & Slab Design for Rose Bay
Rose Bay's ground is extremely reactive clay (Class M (sandstone ridges) / H–E (harbour fall)). On a 300–1,500m² 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.
Woollahra Planning Context
Woollahra has its own LEP and DCP layered over State planning controls. For knocking down and rebuilding in Rose Bay, the practical impact: Woollahra Municipal Council's DCP sets local rules for streetscape character, materials palette in some precincts, vehicle crossover widths, and tree retention. R2 Low / R3 Medium / R4 / B2/B4 mixed zoning on most Rose Bay blocks permits single dwellings, alterations, and additions. Buildana checks every overlay (heritage, bushfire, flood, acid sulfate soil, biodiversity) before quoting.
Cost vs Value in Rose Bay
Median sale price in Rose Bay is $4.5M–$15M. 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 Rose Bay 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.
Lifestyle Fit in Rose Bay
Rose Bay has a settled residential character. Edgecliff (4 km, ferry to Circular Quay) from the nearest station. Local landmark: Rose Bay Wharf & Rose Bay Beach. For families knocking down and rebuilding here, the design considerations that matter day-to-day: orientation for natural light (north-facing living wherever the lot allows), separation between adult and kids' zones, a kitchen that opens to outdoor entertaining, garage size that fits a real family vehicle plus storage, and a layout that doesn't require renovating again in 10 years as the kids grow. Buildana designs for the long arc of how families actually use a home, not just the showroom photo.
Woollahra Municipal Council Processing & Rose Bay Activity
Woollahra Municipal Council processes thousands of residential applications a year across the Woollahra LGA, and Rose Bay (2029) sits in the active end of that workload. For a knockdown rebuild, the realistic clock from lodgement to DA determination is 8-14 weeks. The applications that move to the front of the queue are the ones where every required document is correctly named, drawn to scale, and matched against the SEPP or LEP clause it's claiming compliance with. Buildana lodges every project at that standard — not because it's required, but because it's how you avoid sitting in the RFI loop for an extra month.
Builder's Take on Rose Bay
Service abolishment and reinstatement in Rose Bay 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. Rose Bay residents who KDR rarely regret it; the ones who renovate instead often tell me they wish they'd gone the rebuild path.
Rose Bay vs Nearby Suburbs
Rose Bay vs nearby suburbs — key metrics for knocking down and rebuilding.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Rose Bay2029this suburb | $4.5M–$15M | 300–1,500m² | Class M (sandstone ridges) / H–E (harbour fall) | 1900s–1940s + apartments | Edgecliff (4 km, ferry to Circular Quay) |
| Bellevue Hill2023 | $6M–$25M+ | 500–2,000m² | Class M (sandstone ridges) / H–E (harbour fall) | 1900s–1940s heritage mansions | Edgecliff (3 km) |
| Vaucluse2030 | $5M–$30M+ | 500–2,500m² | Class M (sandstone ridges) / H–E (harbour fall) | 1880s–1940s heritage mansions | Edgecliff (5 km) |
| Double Bay2028 | $4.5M–$15M | 250–1,000m² | Class M (sandstone ridges) / H–E (harbour fall) | 1900s–1940s + apartments | Edgecliff (1 km, ferry to Circular Quay) |
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.
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Cost Guide
| Item | Estimated Range |
|---|---|
| Entry-level single storey KDR | $670,000 – $910,000 |
| Mid-range double storey KDR | $1,010,000 – $1,400,000 |
| Architectural KDR | $1,400,000 – $2,100,000 |
| Luxury KDR (high-spec finishes) | $2,100,000+ |
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 Rose Bay block — lot size (typical 300–1,500m²), R2 Low / R3 Medium / R4 / B2/B4 mixed 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 Woollahra Municipal 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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Liverpool, NSW
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Last updated: 1 April 2026
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