Sans Souci Knockdown Rebuild — Stay on Your Street
Buildana handles KDR across Sans Souci 2219. 1930s–1970s homes on 500–900m² blocks — we know the soil, the Bayside Council rules, and the neighbours' expectations.
HIA Member
MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Sans Souci costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Bayside Council approvals, and construction under one fixed-price contract.
Demolish and Rebuild in Sans Souci
A knockdown rebuild in Sans Souci suits the aging inter-war and post-war stock on this premium peninsula between the Georges River and Botany Bay. The homes sit on 500 to 900m² blocks, and the waterfront setting means a rebuild gives you a substantial modern custom home designed to the outlook. The ground sits at the Botany Sands and shale interface, which shapes the new slab.
The Botany Sands and Wianamatta Shale interface means the new slab and footings get designed against the specific ground, with a possible high water table near the water. Coastal-facing rebuilds carry salt-grade specs. Where the older home carries asbestos, a licensed strip-out and clearance certificate lead the demolition.
What I check first on your Sans Souci knockdown rebuild: the ground at the sand-shale interface and any water table, coastal salt-grade requirements, and asbestos in the demolition. Those decide the play and the price.
We rebuild fixed-price, licence HBL 487805C. Get our knockdown rebuild feasibility before you commit.
Buildana manages the complete knockdown rebuild process in Sans Souci — 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 Sans Souci from $450K
- Bayside Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M — engineered slab design included
- Typical blocks 500–900m² in Sans Souci
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Bus to Kogarah (T4, 5 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
A substantial rebuild on the peninsula
Sans Souci sits on a premium peninsula between the Georges River and Botany Bay, and the aging inter-war and post-war stock genuinely suits replacement. On a 500 to 900m² block, a knockdown rebuild gives you a substantial modern custom home designed to the waterfront setting, which is where the value is, especially on the direct-waterfront blocks along Rocky Point Road.
It resets a dated home entirely and takes full advantage of the peninsula outlook, rather than compromising around an old layout.
Sand-shale ground and salt
Sans Souci sits at the Botany Sands and Wianamatta Shale interface, so the new slab and footings get designed against the specific ground on your block, with a possible high water table near the water engineered for from a real geotech. Coastal-facing rebuilds carry salt-grade fixings and durable claddings. Where the older home carries asbestos, a licensed strip-out and clearance certificate lead the demolition. I price the ground, coastal specs and clearance from real assessments.
Knockdown-rebuild builder in Sans Souci — key facts
- Suburb
- Sans Souci, NSW 2219
- Council / LGA
- Bayside Council (Bayside)
- Primary zoning
- R2 Low
- Typical lot size
- 500–900m²
- Soil class
- M
- Median house price
- $2.0M–$4.0M (waterfront $3M–$6M+)
- Home era
- 1930s–1970s
- 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
Want a real number for YOUR block — not a generic estimate?
Free site assessment, fixed-price contract, line-itemised quote within 48 hours. No high-pressure sales — just a real builder talking real numbers.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single storey rebuild (150–200m²) | $500,000 – $710,000 |
| Double storey rebuild (200–300m²) | $710,000 – $1,100,000 |
| Premium rebuild (300m²+) | $1,100,000+ |
| Demolition (1930s–1970s Sans Souci home) | $19,000 – $42,000 |
| Asbestos removal (if present) | $8,000 – $26,000 |
| Service disconnections & reinstatement | $3,000 – $8,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Free site inspection of your Sans Souci property. We check lot dimensions, Bayside 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.
⏱The Sans Souci construction phase. Fixed price, programmed, supervised. Licensed demolition of existing 1930s–1970s-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.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. 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
Estimate Your Build Cost
Use our free calculator to get an instant cost estimate for your project
Still got questions? Talk to Oliver directly.
30-min free call — bring your block, your brief, your budget. We'll map out feasibility, timeline, and realistic cost. No sales pitch.
Frequently Asked Questions
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
We Build Across Sydney
Headquartered in Western Sydney's Fairfield. Active across all 28 metropolitan Sydney LGAs — from Penrith to the Eastern Suburbs, the Hills to the Sutherland Shire.
Last updated: 1 April 2026
Explore Related Topics
Knockdown Rebuild in Sans Souci
Free KDR site assessment for Sans Souci 2219. We'll assess your block, estimate cost, and provide a fixed-price budget.
Start Your ProjectMore in Sans Souci
Other Buildana services in Sans Souci
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Sans Souci 2219. Bayside Council regulations and local controls are covered on each page.