Knockdown Rebuild Warrawee — From $450K All-In
Fixed-price knockdown rebuild in Warrawee 2074. Demolition, new home, all Ku-ring-gai Council approvals under one contract. No surprises, no variation trail.
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A knockdown rebuild in Warrawee costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Ku-ring-gai Council approvals, and construction under one fixed-price contract.
Warrawee Knockdown Rebuilds
Warrawee KDR is heritage-heavy — Heritage Conservation Areas cover most of the suburb and demolition consent is tougher to win than in any other Ku-ring-gai suburb. Plan for full DA, plan for character-respecting design, plan for a longer pre-construction. Lot sizes 900–1,500m². Knox/Abbotsleigh catchment justifies the spend. Realistic KDR turnkey for a 400m² heritage-respecting two-storey: $2.0M–$2.8M.
Most Warrawee blocks run 900–1,500m² on Class M ground. Knockdown rebuild on 1920s–1960s (heavy heritage stock) 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: $3.2M–$4.6M. Local services anchor around Warrawee station & Abbotsleigh proximity.
Buildana manages the complete knockdown rebuild process in Warrawee — 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 Warrawee from $450K
- Ku-ring-gai Council DA and CDC approvals managed
- Demolition and asbestos removal included
- Class M soil — engineered slab design included
- Typical blocks 900–1,500m² in Warrawee
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Warrawee 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 Warrawee?
Warrawee is the smallest premium pocket in the LGA — sits between Turramurra and Wahroonga on the T1 North Shore line. Blocks run 900–1,500m², heritage Federation and inter-war homes line the back streets, and the Knox/Abbotsleigh catchment lifts the floor price. Heritage Conservation Areas cover several streets, which means most KDR proposals here go through a full DA rather than CDC.
Warrawee's established streetscape and median house prices of $3.2M–$4.6M reflect a premium location within Ku-ring-gai. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Direct rail access from Warrawee station adds genuine value to Warrawee property. 1920s–1960s (heavy heritage stock)-era housing stock across Warrawee is prime for knockdown rebuild — replacing dated layouts and materials with modern, NCC-compliant homes that maximise block potential. Class M soil (moderately reactive) is standard for Warrawee — Buildana includes engineered slab design in every quote.
Knockdown rebuild in Ku-ring-gai is its own discipline — every job starts with a heritage check, a tree report, and a streetscape character assessment before a concept goes anywhere near a block. Council's Heritage Conservation Areas cover significant portions of Gordon, Killara, Pymble, Wahroonga, Warrawee, Roseville and Turramurra; demolish without consent and you lose the lot. Blocks generally run 800–1,400m² with Class M soil on the sandstone ridge and reactive H pockets in the Lane Cove valley suburbs (East Killara, South Turramurra, West Pymble, East Lindfield). Demolition costs run $35K–$60K because most of the housing stock is asbestos-era brick or fibro and the Tree Preservation Order limits site clearing. CDC is rarely the right pathway in Ku-ring-gai — full DA is the realistic plan, with 12–18 weeks typical assessment. Realistic KDR budget for a 350m² premium two-storey rebuild on a Pymble or Wahroonga block: $1.6M–$2.6M turnkey, depending on finish level.
Planning Controls — Ku-ring-gai Council
Ku-ring-gai LEP 2015 & Ku-ring-gai DCP. R2 Low Density: FSR 0.3:1 on lots under 1,200m² (sliding down to ~0.27:1 on larger lots), building height 9.5m, front setback 9–12m varying by streetscape, landscaped area 50%, deep soil 30%. Heritage Conservation Areas cover significant portions of Gordon, Killara, Pymble, Wahroonga, Warrawee, Roseville and Turramurra — heritage character assessment is required before any DA. Tree Preservation Order is one of Sydney's strictest: any tree over 5m high or 0.45m trunk circumference needs Council consent before removal. Bushfire planning (Planning for Bushfire Protection 2019) applies in St Ives, St Ives Chase, North Turramurra, North Wahroonga and bush-edge lots — BAL assessment is mandatory. The 2024 NSW TOD reforms permit medium density inside 400m of Roseville, Lindfield, Killara, Gordon, Pymble, Turramurra and Warrawee stations, but Council scrutiny on built form and tree retention remains heavy.
Knockdown-rebuild builder in Warrawee — key facts
- Suburb
- Warrawee, NSW 2074
- Council / LGA
- Ku-ring-gai Council (Ku-ring-gai)
- Primary zoning
- R2 Low Density
- Typical lot size
- 900–1,500m²
- Soil class
- Class M
- Median house price
- $3.2M–$4.6M
- Home era
- 1920s–1960s (heavy heritage stock)
- 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 Warrawee — Local Context
Warrawee Block Realities
Typical Warrawee blocks are 900–1,500m² on Class M ground (moderately reactive). For a rebuild, the structural envelope is more constrained than the headline lot size suggests — once you subtract setbacks, easements, landscaped area requirements, and any tree preservation, the actual buildable area is usually 35-45% of the block. We map that early in the feasibility stage so you're designing to what's actually allowed, not what looks possible from the title plan. Foundation cost band on most Warrawee blocks: $15,000–$32,000.
Approval Timeline for Warrawee
Realistic timeline for a rebuild in Warrawee: 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.
What a Rebuild Costs in Warrawee
Warrawee's median house price sits at $3.2M–$4.6M. That's the number that decides whether a knockdown rebuild stacks up financially. A new build at $3.2M–$4.6M+ replacement is well-supported by the local market and adds resale headroom on standard 900–1,500m² blocks. Buildana provides itemised quotes — no provisional sums, no allowances, no "as per engineering" line items.
Building to Suit Warrawee
Warrawee's R2 Low Density zoning, 900–1,500m² blocks, and 1920s–1960s (heavy heritage stock) housing stock set the design context. For a rebuild, the practical implications: new builds that respond to Warrawee's streetscape sell and live better than generic catalogue homes dropped on the block. Buildana's design phase resolves all of this before you commit to construction pricing.
Why Some Warrawee Builds Stall
Builds in Warrawee stall for predictable reasons. Lodgement defects (missing BASIX, wrong drawing scale, undeclared overlays). Soil surprises on Class M ground when the builder didn't commission a borehole upfront. Variation creep when the contract was light on inclusions. Trade scheduling gaps when the builder is over-committed across too many sites. Ku-ring-gai Council delays when neighbour objection triggers committee review. Buildana protects against each of these at contract stage — fully documented lodgement pack, geotech in the price, itemised inclusions instead of allowances, and a tight project-manager-to-job ratio that keeps trades moving.
Builder's Take on Warrawee
Service abolishment and reinstatement in Warrawee 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. Warrawee residents who KDR rarely regret it; the ones who renovate instead often tell me they wish they'd gone the rebuild path.
Warrawee vs Nearby Suburbs
Warrawee vs nearby suburbs — key metrics for knocking down and rebuilding.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Warrawee2074this suburb | $3.2M–$4.6M | 900–1,500m² | Class M | 1920s–1960s (heavy heritage stock) | Warrawee |
| Turramurra2074 | $2.8M–$4.2M | 700–1,100m² | Class M | 1920s–1960s (heavy heritage stock) | Turramurra |
| Wahroonga2076 | $3.0M–$4.6M | 800–1,500m² | Class M | 1920s–1960s (heavy heritage stock) | Wahroonga |
| South Turramurra2074 | $2.8M–$4.2M | 800–1,500m² | Class M–H | 1920s–1960s (heavy heritage stock) | Turramurra (2 km) |
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 | $620,000 – $850,000 |
| Mid-range double storey KDR | $940,000 – $1,300,000 |
| Architectural KDR | $1,300,000 – $1,950,000 |
| Luxury KDR (high-spec finishes) | $1,950,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Free site inspection of your Warrawee property. We check lot dimensions, Ku-ring-gai Council's planning controls, existing home condition, and potential asbestos. Written assessment with budget estimate within 5 business days.
⏱KDR is the chance to get the design right — the new build doesn't have to mimic the original layout. We start from your block's strengths (orientation, slope, views) and your family's brief, then design the home the original lot always deserved.
⏱Licensed demolition of existing 1920s–1960s (heavy heritage stock)-era dwelling. Asbestos removal by certified contractors (if present). Site cleared, levelled, and ready for new slab. Typically 1–2 weeks.
⏱Your new home goes up on the cleared site. Engineered slab sized for Class M soil, frame, roof, fit-out, kitchen, bathrooms, flooring, painting, driveway, and landscaping. Quality inspections at every stage.
⏱Handover pack: OC, structural certificates, BASIX, appliance manuals and warranties, paint colour schedule, maintenance plan, and the keys. Six-year structural warranty kicks in from OC date — keep the documentation safe for any future sale.
⏱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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