Mortdale Knockdown Rebuild — Stay on Your Street
Buildana handles KDR across Mortdale 2223. 1920s–1960s heritage Federation/Californian Bungalow + 1960s–1990s brick veneer + 2010s+ R3/R4 redevelopment around Hurstville/Kogarah/Beverly Hills CBDs homes on 400–700m² typical (Hurstville/Kogarah/Beverly Hills/Penshurst/Mortdale/Carlton/Kingsgrove/Allawah); 600–1,200m² premium foreshore (Oatley/Lugarno/Peakhurst Heights/Connells Point) blocks — we know the soil, the Georges River Council rules, and the neighbours' expectations.
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MBA NSW0476 300 300Quick Answer
A knockdown rebuild in Mortdale costs $450,000–$1,200,000+. Standard single-storey from $450K, two-storey from $650K. Buildana manages demolition, Georges River Council approvals, and construction under one fixed-price contract.
Knockdown Rebuild Builder in Mortdale
Mortdale's mix is the story: Federation and inter-war homes worth keeping sit next to 1960s to 1990s brick that is not, and a knockdown rebuild here starts with knowing which one you own. Blocks of 400 to 700m² around the village and station are tightly held for good reason, the shopping strip, the rail line, the aquatic centre up the road. Medians of $1.5M to $2.4M put serious land value under even the plainest brick veneer.
Georges River Council asks 600m² for a duplex, so a decent share of Mortdale blocks qualify, worth modelling against a single home before you decide. R3 zoning along Morts Road adds options closer to the village. Soil is a shale-sandstone interface with reactive clay pockets, the geotech settles which one you have got. Older homes get heritage-checked, newer ones go straight to feasibility.
What I would check first on a Mortdale block: whether the home is period-worth-keeping or plain brick, the 600m² duplex potential, and the shale-sandstone soil. Those decide the path.
We build these fixed-price, licence HBL 487805C. Start the conversation with us before the agents.
Buildana manages the complete knockdown rebuild process in Mortdale — 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 Mortdale from $450K
- Georges River Council DA and CDC approvals managed
- Demolition and asbestos removal included
- M — engineered slab design included
- Typical blocks 400–700m² typical (Hurstville/Kogarah/Beverly Hills/Penshurst/Mortdale/Carlton/Kingsgrove/Allawah); 600–1,200m² premium foreshore (Oatley/Lugarno/Peakhurst Heights/Connells Point) in Mortdale
- Single and two-storey designs available
- 6-year structural warranty
- Free site assessment — near Mortdale station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Know which house you own
Mortdale's mix is the story: Federation and inter-war homes worth keeping sit next to 1960s to 1990s brick that is not. So a knockdown rebuild here starts with knowing which one you own.
Blocks of 400 to 700m² around the village and station are tightly held for the shopping strip, the rail line and the aquatic centre, and $1.5M to $2.4M medians put serious land value under even plain brick veneer.
A duplex worth modelling
Georges River Council asks 600m² for a duplex, so a decent share of Mortdale blocks qualify, worth modelling against a single home. R3 zoning along Morts Road adds options closer to the village.
Soil is a shale-sandstone interface with reactive clay pockets, and the geotech settles which one you have. Older homes get heritage-checked, newer ones go straight to feasibility. Start with us before the agents.
Knockdown-rebuild builder in Mortdale — key facts
- Suburb
- Mortdale, NSW 2223
- Council / LGA
- Georges River Council (Georges River Council)
- Primary zoning
- R2 Low Density
- Typical lot size
- 400–700m² typical (Hurstville/Kogarah/Beverly Hills/Penshurst/Mortdale/Carlton/Kingsgrove/Allawah); 600–1,200m² premium foreshore (Oatley/Lugarno/Peakhurst Heights/Connells Point)
- Soil class
- M
- Median house price
- $1.5M–$2.4M typical; $2.0M–$3.5M Oatley/Lugarno/Peakhurst Heights premium foreshore; $3.0M–$8.0M+ direct waterfront
- Home era
- 1920s–1960s heritage Federation/Californian Bungalow + 1960s–1990s brick veneer + 2010s+ R3/R4 redevelopment around Hurstville/Kogarah/Beverly Hills CBDs
- 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 |
|---|---|
| Entry-level single storey KDR | $480,000 – $650,000 |
| Mid-range double storey KDR | $720,000 – $1,000,000 |
| Architectural KDR | $1,000,000 – $1,500,000 |
| Luxury KDR (high-spec finishes) | $1,500,000+ |
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 Mortdale property. We check lot dimensions, Georges River 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 heritage Federation/Californian Bungalow + 1960s–1990s brick veneer + 2010s+ R3/R4 redevelopment around Hurstville/Kogarah/Beverly Hills CBDs-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
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
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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
Book a Mortdale Knockdown Rebuild Assessment
Free KDR site assessment for Mortdale 2223. We'll assess your block, estimate cost, and provide a fixed-price budget.
Start Your ProjectMore in Mortdale
Other Buildana services in Mortdale
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Mortdale 2223. Georges River Council regulations and local controls are covered on each page.