Regents Park Home Extension Builder — Live In, Build On
Buildana extends homes across Regents Park 2143 while you stay in place. 1950s–1970s-era structure, Cumberland City Council rules, weatherproofing during build — all managed locally from Fairfield.
HIA Member
MBA NSW0476 300 300Extending Homes in Regents Park
Regents Park has a station and 1950s–1970s homes on R2 blocks. Affordable suburb with extension potential — add rooms and living space while keeping rail connectivity. Cumberland City Council approvals managed by Buildana.
Regents Park's housing stock is mostly from the 1950s–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 $1.0M–$1.3M on typical 450–650m² blocks. Class M ground, foundation cost band $15,000–$32,000.
Buildana manages the complete home extension process in Regents Park — 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 Regents Park from $150K
- Cumberland City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1950s–1970s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Regents Park 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 Regents Park?
Regents Park has its own train station and features established housing from the 1950s–1970s. Standard blocks provide good potential for granny flats and knockdown rebuilds.
Residential blocks of 450–650m² across Regents Park (2143) provide solid building envelopes for a range of project types. Cumberland City Council manages planning controls with well-established DCP provisions. Direct rail access from Regents Park station adds genuine value to Regents Park property. 1950s–1970s-era homes in Regents Park often have good structural foundations worth building on. Extensions add living space at a fraction of the full rebuild cost. Class M soil (moderately reactive) is standard for Regents Park — Buildana includes engineered slab design in every quote.
Home extensions across Cumberland LGA are popular in suburbs like Greystanes, Girraween, and Wentworthville where 1970s–1990s homes have good structural foundations worth building upon. Rear living extensions, second-storey additions, and master suite upgrades are the most common projects. Cumberland Council requires DA for extensions exceeding certain thresholds. Buildana manages structural engineering, design, approvals, and fixed-price construction.
Planning Controls — Cumberland City Council
Cumberland LEP 2021 & DCP. R2 zones: FSR 0.5:1, R3 zones: FSR 0.7:1, building height 9m, front setback 6m, landscaped area 35%. Heritage items and conservation areas apply in parts of Granville and Auburn. CDC available for eligible designs.
Home extension builder in Regents Park — key facts
- Suburb
- Regents Park, NSW 2143
- Council / LGA
- Cumberland City Council (Cumberland City)
- Primary zoning
- R2 Low Density & R3 Medium Density
- Typical lot size
- 450–650m²
- Soil class
- Class M
- Median house price
- $1.0M–$1.3M
- Home era
- 1950s–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 Regents Park — Local Context
Foundations & Slab Design for Regents Park
Regents Park's ground is moderately reactive (Class M). On a 450–650m² block, that translates to engineered slab work in the $15,000–$32,000 bracket for a extension. 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.
Planning Controls in Regents Park
Regents Park is zoned R2 Low Density & R3 Medium Density with R3 Medium Density pockets. Cumberland City Council controls FSR, height limits (typically 8.5–9m), site coverage, landscaped area minimums, and setbacks. For a extension, the binding constraints on most 450–650m² blocks here are: front setback (around 4.5–6m), side setbacks (1.0–1.5m articulated), rear (3–6m depending on lot depth), and landscaped area (usually 35–40%). Buildana's design team works to those numbers from the first sketch — no late re-design when council comes back with comments.
Cost vs Value in Regents Park
Median sale price in Regents Park is $1.0M–$1.3M. For a extension, the decision tree runs through three numbers: build cost, expected post-completion value, and how long you plan to hold. Ground-floor extensions of 30–50m² typically return 1.1–1.3× their cost at sale in suburbs around $1.0M–$1.3M. Second-storey adds tend to outperform — 1.3–1.6× — because they unlock larger family layouts on standard blocks. We map this in feasibility before you commit.
Lifestyle Fit in Regents Park
Regents Park has a settled residential character.. Local landmark: Regents Park station precinct & shops. For families extending 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.
Realistic Regents Park Timeline
End-to-end timeline for a home extension in Regents Park, lodgement-realistic: 8-14 weeks for DA, depending on neighbour notification and any RFI rounds. Add 2-3 weeks for documentation pack assembly before lodgement (BASIX, geotech for Class M, contour survey, hydraulic). Add 1 week for Construction Certificate post-approval. Construction runs 3-6 months depending on scope. Buildana provides a dated programme in every contract, not a vague "12-18 months" range.
Builder’s Take on Regents Park
Second storey on a Regents Park home: the existing single-storey footings usually need reinforcement, which adds $15K–$40K. The roof comes off. The house is exposed for 4–8 weeks (weatherproofed nightly). Clients often underestimate the disruption — but the result is a doubling of floor area for 50% of the cost of a rebuild.
BASIX re-certification on extensions catches people out. Any extension over 50m² triggers BASIX on the combined envelope. Your existing home might be well short of 7-star, so the extension has to pull the whole house closer to compliance. That can mean insulation upgrades in the existing walls and ceiling.
Regents Park vs Nearby Suburbs
Regents Park vs nearby suburbs — key metrics for extending.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Regents Park2143this suburb | $1.0M–$1.3M | 450–650m² | Class M | 1950s–1970s | Regents Park |
| Berala2141 | $1.0M–$1.3M | 450–650m² | Class M | 1950s–1970s | Berala |
| Auburn2144 | $1.1M–$1.4M | 450–650m² | Class M | 1930s–1970s | Auburn |
| Birrong2143 | $950K–$1.15M | 500–700m² | Class M | 1940s–1970s | Birrong |
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.
Quality Promise
Every Buildana home extension in Regents Park is delivered under a fixed-price contract — from design consultation through to defect-free handover.
How It Works
From First Call to Final Key
Walk through your Regents Park home with our designer and structural engineer. We measure, photograph, and check the bones — footings, frame condition, roof structure. The cost estimate that follows is grounded in what we found, not a generic per-m² number.
⏱Our designer works with your existing home's layout — connecting new living areas to existing rooms, matching materials and roof pitch, and maximising natural light. You approve floor plans and 3D renders before we proceed.
⏱Most rear extensions in Regents Park qualify for CDC — cleaner, faster, no neighbour notification. Second-storey additions typically need DA through Cumberland City Council because of overshadowing and privacy assessments. We choose based on your design, not on what's easier to lodge.
⏱Extension built from new footings to completion — connecting structurally to your existing home. Class M soil design managed. Temporary weatherproofing maintains liveability where possible.
⏱Walk through the completed extension, confirm finishes, collect your OC. Six-year structural warranty covers all new work including the junction with your existing home. Maintenance guide provided.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
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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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Last updated: 1 April 2026
Add Space to Your Regents Park Home
Free design consultation for Regents Park 2143. We'll assess your home, design the extension, and provide a fixed-price quote.
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Other Buildana services in Regents Park
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Regents Park 2143. Cumberland City Council regulations and local controls are covered on each page.