Home Extension Builder Campsie — Approved in 60 Days
Campsie 2194 extensions with tight approval timelines. CDC where eligible (~15 days), DA via Canterbury-Bankstown Council in 40–60 days. Construction 12–24 weeks depending on scope.
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MBA NSW0476 300 300Quick Answer
A home extension in Campsie costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Canterbury-Bankstown Council approvals, and construction under one fixed-price contract.
Campsie Home Extensions — Fixed Price
Campsie has rail connectivity and inner-west character. 1940s–1970s homes on blocks suited to rear extensions and second-storey additions. Stay close to the station and amenity while gaining the space you need. Canterbury-Bankstown Council DCP controls managed by Buildana.
Campsie's housing stock is mostly from the 1940s–1970s, which is the era where structural bones either hold up or don't — and we see plenty of both across the suburb. For extending here, that history matters: asbestos survey before any demolition is non-negotiable, and licensed removal lands somewhere between $5,000 and $25,000 depending on what's actually there. Median price $1.2M–$1.5M on typical 500–700m² blocks. Class M ground, foundation cost band $15,000–$32,000.
Buildana manages the complete home extension process in Campsie — from design consultation and structural engineering through to DA or CDC approval, and fixed-price construction to handover. Extend your home without the stress.
Read our Home Extension Cost Guide 2026 or explore extension approval pathways in NSW.
- Home extensions in Campsie from $150K
- Canterbury-Bankstown Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1940s–1970s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Campsie station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Why Extend Your Home in Campsie?
Campsie is a busy multicultural suburb with excellent rail connectivity. Strong R3 and R4 zoning around Campsie CBD and established residential streets make it popular for development.
Campsie's established streetscape and median house prices of $1.2M–$1.5M reflect a premium location within Canterbury-Bankstown. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Campsie benefits from Campsie station on the doorstep — walkable rail access lifts both rental demand and property values. 1940s–1970s-era homes in Campsie often have good structural foundations worth building on. Extensions add living space at a fraction of the full rebuild cost. Soil conditions in Campsie (Class M, moderately reactive) are factored into every Buildana foundation design.
Home extensions across Canterbury-Bankstown suit the area's character housing stock — from 1920s–1960s bungalows in Canterbury and Earlwood to post-war homes in Bankstown and Revesby. Common projects include rear living extensions, upper-floor additions, and modernising period kitchens while retaining character elements. Heritage requirements may apply in some areas. Buildana manages design, approvals, and construction.
Planning Controls — Canterbury-Bankstown Council
Canterbury-Bankstown LEP 2023 & DCP. R2 zones: FSR 0.5:1, R3 zones: FSR 0.85:1, building height 9m, front setback 5.5m. Heritage conservation provisions apply in some suburbs. CDC available for eligible designs.
Home extension builder in Campsie — key facts
- Suburb
- Campsie, NSW 2194
- Council / LGA
- Canterbury-Bankstown Council (Canterbury-Bankstown)
- Primary zoning
- R2 Low Density & R3 Medium Density
- Typical lot size
- 500–700m²
- Soil class
- Class M
- Median house price
- $1.2M–$1.5M
- Home era
- 1940s–1970s
- Typical price range
- $150,000 – $600,000+
- Typical timeline
- 6–12 months design to handover
- Approval pathway
- CDC for most rear extensions, DA for second-storey
Building in Campsie — Local Context
What Campsie Soil Means for Your Extension
Most blocks across Campsie (2194) classify as Class M — moderately reactive. Translation for a home extension: foundation cost lands somewhere between $15,000–$32,000, depending on building footprint and how the engineer reads the borehole. Standard waffle raft slabs work on most Campsie sites, sized by an engineer to the actual classification. Buildana includes the geotech report, structural engineering, and slab design in every quote. No site allowance, no provisional sum.
Canterbury-Bankstown Council & Approval Pathway
Campsie sits inside the Canterbury-Bankstown LGA, governed by Canterbury-Bankstown Council. For a home extension, the approval question is usually CDC vs DA. Extensions in Campsie usually need a full DA through Canterbury-Bankstown Council — typically 40–90+ days from lodgement, longer if neighbour notification triggers objections. Either way, we manage submission, RFIs, and re-lodgement in-house — you don't deal with the council.
What a Extension Costs in Campsie
Campsie's median house price sits at $1.2M–$1.5M. That's the number that decides whether a home extension stacks up financially. If you're spending more than 50% of $1.2M–$1.5M on a extension, the economics tilt toward knockdown rebuild instead. Worth running the numbers properly before locking in scope. Buildana provides itemised quotes — no provisional sums, no allowances, no "as per engineering" line items.
What Makes a Extension Work in Campsie
Campsie (2194) is part of Canterbury-Bankstown.. Building well here means understanding what the suburb actually rewards — and what it punishes. Reward: thoughtful orientation, family-scale outdoor entertaining, durable materials that look right against the 1940s–1970s streetscape, and floor plans that handle multi-generational living without feeling cramped. Punish: over-glazing on west elevations (summer heat is brutal), thin slab specs on Class M ground, generic project-home elevations that ignore the street rhythm. Buildana has built across Canterbury-Bankstown long enough to know where the line sits.
Building Activity in Campsie Right Now
Campsie is seeing steady residential activity — extensions are picking up as families choose to upsize their existing home rather than face stamp duty on a move. Buildana sits inside that pipeline — we know what's getting approved, what's stalling, and why.
Builder’s Take on Campsie
Canterbury-Bankstown Council setback and height rules apply to the extension, not the whole house. An older Campsie home that was built inside the setback might not be extendable to the boundary. We check that during feasibility so there's no expensive surprise at DA stage.
Timing on Campsie extensions typically runs 14–24 weeks for ground-floor additions, 20–32 weeks for second-storey. Living in the house during the build is possible but requires staging — we plan around it so the kitchen and main bathroom aren't out at the same time.
Campsie vs Nearby Suburbs
Campsie vs nearby suburbs — key metrics for extending.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Campsie2194this suburb | $1.2M–$1.5M | 500–700m² | Class M | 1940s–1970s | Campsie |
| Canterbury2193 | $1.3M–$1.6M | 500–700m² | Class M | 1920s–1960s | Canterbury |
| Belmore2192 | $1.2M–$1.5M | 500–700m² | Class M | 1930s–1960s | Belmore |
| Lakemba2195 | $1.1M–$1.4M | 400–600m² | Class M–S | 1930s–1960s | Lakemba |
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.
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.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Campsie homes from the 1940s–1970s were built to different standards — we open walls, check footings, verify load paths. The existing house has to carry the new work.
⏱Design follows the existing roof. A bad extension looks like a bolt-on; a good one reads as original. Matched brickwork or contrasting render (whichever the architecture calls for), tied-in roofline, continuous flooring where it should be continuous.
⏱Construction happens while you live in the house. That means weatherproofing every night, staging the works so kitchens and bathrooms don't disappear on the same week, and keeping the site clean of debris that doesn't belong in a family home.
⏱Finish is seamless. Paint match, floor match, roofline match, brick match where possible. The only way to tell the extension is new is the date on the plans.
⏱Quality Promise
Buildana's Campsie home extension process: assess the existing structure, design the addition, approve, build. Fixed price throughout.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $99,000 – $220,000 |
| Moderate extension (multiple openings, roof extended) | $220,000 – $420,000 |
| Complex extension (structural steel portals, re-roofing) | $420,000 – $660,000 |
| Second-storey tie-in (existing house re-engineered) | $390,000 – $720,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
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Frequently Asked Questions
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Liverpool, NSW
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Last updated: 1 April 2026
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Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Campsie 2194. Canterbury-Bankstown Council regulations and local controls are covered on each page.