Regents Park Home Builder — Custom Homes, KDR, Duplex
Licensed NSW builder (HBL 487805C) · Fixed-price contracts · Cumberland DA + CDC managed in-house
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.
Cumberland City Council controls planning across Regents Park, with R2 Low Density & R3 Medium Density as the dominant zone and a duplex minimum of 600m² where dual occupancy applies. Soil sits at Class M, and most homes here date from 1950s–1970s — so demolition, slab and structural assumptions all need to be set against that, not a generic Sydney average.
Council
Cumberland City
Median price
$1.0M–$1.3M
Build cost (mid-spec)
$2,200–$2,650/m²
Typical lot
450–650m²
Soil class
M
DA timing
10–14 wks
Builder perspective
Building in Regents Park — what we actually look at first
Regents Park (2143) sits in the 1950s–1970s housing band, on Class M ground, under Cumberland City Council planning controls — three facts that shape every decision from footings up. Approvals run through Cumberland City Council — 10–14 weeks for a single-dwelling da on a standard lot on a clean matter, more once Council's planners ask for additional information. On 450–650m² blocks, the most common build path is either a full KDR or a substantial rear-and-upstairs extension — depending on the condition of the original slab. The lot's grade, frontage and Class M soil profile all flow into slab type, retaining wall scope and stormwater design — none of which can be properly costed off a Nearmap image. Buildana is a Sydney-wide custom builder with HBL 487805C and a base in Fairfield. The amanah principle — keeping the word given — is how we run every contract. If you've got a Regents Park site in mind, the right next step is a feasibility — not a fishing expedition for a price. We'll do the desktop work and tell you what makes sense.
Oliver Alameri — Founder & licensed builder
HBL 487805C · Reading Regents Park sites since day one
Regents Park build context
The data we use to feasibility-check a Regents Park lot before quoting.
Council
Cumberland City
Postcode
2143
Primary zoning
R2 Low Density & R3 Medium Density
Typical lot size
450–650m²
Predominant home era
1950s–1970s
Soil class (AS 2870)
Class M
Duplex minimum lot
600m²
Median price band
$1.0M–$1.3M
Granny flat rental
$400–$530/week
Train station
Regents Park
Build cost (mid-spec)
$2,200–$2,650/m² · Rawlinsons 2026
Why owners build with Buildana in Regents Park
Same six facts on every contract — we just write them down so you can hold us to them.
- NSW HBL 487805C, properly insured — every job runs on a fixed-price contract, scope locked before site start.
- Cumberland City we own the council pathway — CDC for compliant lots, DA where the design needs assessment, either way it's our problem to solve.
- Consultants — structural, geotech, BASIX, RFS — coordinated under one Buildana project lead so the documents arrive in the right order.
- Demolition packages include SafeWork-licensed asbestos clearance and tipping fees — not stripped out of the headline price to look cheaper.
- Contract pricing built from a Rawlinsons-aligned BoQ — when council adds a condition, the cost impact is itemised in writing.
- Anchored on the amanah principle — the scope on contract day is the scope at handover. Local landmark: Regents Park station precinct & shops. Train: Regents Park.
Regents Park build economics
Indicative cost ranges for a Buildana build in Regents Park, benchmarked against the Rawlinsons Australian Construction Handbook 2026 Sydney baseline and adjusted for the local cost profile. Every figure is a starting point — a real feasibility shifts it by site condition, brief and finish spec.
| Build type | Indicative range | Spec assumptions |
|---|---|---|
| Single-storey custom home (200m² GFA, mid-spec) | $2,200–$2,650/m² × 200m² | Brick veneer, ColorBond roof, mid-tier joinery and finishes — Rawlinsons 2026 Sydney medium-spec baseline. |
| Double-storey custom home (300m² GFA, mid-spec) | $2,500–$3,100/m² × 300m² | Two-storey brick veneer, light-frame upper, ColorBond or tile, mid-spec finishes — first-floor adds engineering and access loadings. |
| Premium custom home (350m²+, full-brick or rendered) | $3,200–$4,800/m² × 350m²+ | Full-brick or rendered structure, hardwood or stone external, custom joinery throughout — Rawlinsons high-spec baseline. |
| Detached duplex (combined 350m² GFA) | $2,600–$3,300/m² combined | Twin-slab on separate footings or party-wall slab; independent services; BCA Vol 2 acoustic separation. |
| Knockdown rebuild (200m², mid-spec, includes demo) | $2,300–$2,850/m² × 200m² + $25–$45K demo | Demolition (incl. SafeWork-licensed asbestos clearance), geotech, slab, frame, full mid-spec finish. |
| Granny flat (60m², Class 1a) | $185,000–$265,000 turnkey | Class 1a secondary dwelling, full kitchen + bathroom, BASIX-compliant, SEPP-pathway CDC where lot qualifies. |
Source: Rawlinsons Australian Construction Handbook 2026 (Sydney section), adjusted for Regents Park cost profile via Buildana's internal suburb cost-adjustment matrix. Figures exclude land, professional fees, council contributions and FF&E.
Free Regents Park feasibility
Thinking about building in Regents Park? Start with the numbers, not a sales pitch.
Send us your address and rough brief. We'll come back with a straight read on your block — zoning, soil class, frontage, approval path and a real cost range against Rawlinsons 2026. No obligation, no pressure, just the facts you need before you spend a dollar on design.
Buildana services in Regents Park
All six core services delivered across the Cumberland — each one priced against Regents Park's specific site context, not a generic Sydney baseline.
Knockdown Rebuild
We tear down, dig the right footings for the soil profile, then rebuild — same crew the whole way through.
Regents Park knockdown rebuild approachDuplex
Detached duplex on the lots that allow it — twin homes, independent driveways, independent BASIX, often Torrens-title at completion.
Regents Park duplex approachGranny Flat
Secondary dwellings under SEPP — 60m², usually CDC, often no neighbour notification needed.
Regents Park granny flat approachCustom Home
Design and construct under one fixed-price contract — the architect and the builder are on the same team from concept.
Regents Park custom home approachExtension
Extensions that look like the home grew that way — not a clear before/after line at the addition boundary.
Regents Park extension approachRenovation
Renovation done by a licensed builder, not a generalist — structural changes, waterproofing and finishes all in one contract.
Regents Park renovation approachApproval pathway in Regents Park
Cumberland Council, a diverse Western Sydney municipality formed from the 2016 Local Government amalgamations.
Buildana lodges roughly two-thirds of Regents Park matters as CDCs and one-third as DAs. The split tracks the design: rectangular single-storey on a regular R2 Low Density & R3 Medium Density lot is almost always CDC (15–25 working days for code-compliant rebuilds); anything with a non-standard setback, large extension on an existing slab, or duplex on 600m²+ lots is DA (10–14 weeks for a single-dwelling da on a standard lot) with fees of $1,800–$3,000 base for a class 1a residential da. Where the right pathway isn't obvious from the brief, our certifier and town planner sit on the design before the drafting starts.
CDC pathway
Private certifier · 15–25 working days for code-compliant rebuilds · no neighbour notification. Design must comply exactly with the Codes SEPP.
DA pathway
Cumberland City merit assessment · 10–14 weeks for a single-dwelling DA on a standard lot · DA fees $1,800–$3,000 base for a Class 1a residential DA. Used where the design pushes a code limit.
Section 7.11 / 7.12 developer contributions in Regents Park: Are modest (under $10K per dwelling typically).
Regents Park site considerations
Site cost variability in Regents Park comes from two main drivers. First, soil — with Class M ground the footing system has to be engineered to the geotech (waffle pod, stiffened raft or piered slab depending on the report). We never quote slab cost off a desktop assumption; the geotech goes out before contract. Second, the existing 1950s–1970s housing stock means demolition variables — pre-1990 fibro requires a SafeWork NSW Class B asbestos licence and proper containment, and that's priced into the contract, not back-charged when the demo crew finds it.
Soil & footings
Class M reactivity drives waffle-pod, stiffened raft or piered slab — engineered to a real geotech, not a desktop guess.
Demolition
Pre-1990 1950s–1970s stock means SafeWork-licensed asbestos clearance — priced into the contract upfront, with the clearance certificate before slab pour.
Flood & bushfire
Flood risk: moderate. Bushfire risk: very low. Heritage exposure: low. We map your lot against each before quoting.
Local overlays the Cumberland City planner will check first
- Duck River flood planning
- Prospect Creek + Coopers Creek overlays
- Heritage (Granville, Auburn pockets)
- Acid sulfate soils
Recent builds nearby
Buildana projects in the Cumberland
We work continuously across Cumberland — single-storey customs, double-storey rebuilds, side-by-side duplex on R2 lots that comply with Cumberland City's DCP minimum frontage, granny flats on SEPP secondary-dwelling pathways. Most projects start with the same conversation we'd have about your Regents Park site: title, zone, slope, frontage, soil. Then design. Then fixed-price contract.
Real project case studies
Read full Buildana builds — the challenge, the fixed-price solution, the real timeline and cost — across Western Sydney.
Read case studiesCumberland hub
Full Cumberland builder hub — every suburb we work in, every service, council pathway notes.
Open Cumberland hubRegents Park area guide
The lifestyle and neighbourhood guide for Regents Park — schools, transport, market, character.
Read area guideRegents Park build FAQs
The questions we get asked most often on a first Regents Park site walk.
- What soil class is typical in Regents Park 2143?
- Regents Park ground is typically Class M based on the AS 2870 site classifications and geotech we've worked with in the suburb. That drives slab design — waffle-pod, stiffened raft or a piered system depending on the report. We never assume it; every Buildana build commissions a geotechnical investigation before slab engineering. The geotech report is yours to keep, regardless of which builder you use after.
- What does it cost to knock down and rebuild in Regents Park?
- End values in Regents Park sit in the $1.0M–$1.3M range based on recent sales. A typical knockdown rebuild — demo, asbestos clearance, geotech, slab, frame, full mid-spec finish for a 200m² single-storey — runs $2,300–$2,850/m² × 200m² + $25–$45k demo as a Rawlinsons-aligned 2026 baseline. We benchmark every line to the Rawlinsons Australian Construction Handbook, not back-of-envelope figures. Send through your block address and we'll run a proper feasibility against what's actually achievable on the lot.
- Do you do extensions and renovations in Regents Park?
- Yes — ground-floor additions, second-storey adds, full-house renovations, kitchens and bathrooms in Regents Park. The complication on 1950s–1970s housing stock is that you can't price an extension off the plans alone — we pre-investigate the existing slab, frame, roof tie-in and wet-area waterproofing before quoting. Surprises during demolition are the most common reason renos blow their budget; we eliminate that by inspecting first.
- How long does a DA take with Cumberland City Council?
- 10–14 weeks for a single-dwelling DA on a standard lot. CDC through a private certifier is the alternative where the design complies with the Codes SEPP — 15–25 working days for code-compliant rebuilds. Council DA application fees fall in the $1,800–$3,000 base for a class 1a residential da range. Buildana lodges either pathway and runs all RFI responses through to determination.
- Why does Regents Park cost different from a generic Sydney average?
- Regents Park tracks the Sydney metropolitan median build cost — there's no significant premium or discount on labour or materials in this suburb.
- How long does a custom home build take in Regents Park?
- From contract signed to handover, a single-storey 4-bedroom custom home in Regents Park typically takes 9–11 months on a CDC pathway, or 12–14 months if the design needs a DA through Cumberland City Council. Add 4–6 weeks for double-storey. Pre-construction (design, engineering, BASIX, approval, contract) runs in parallel and adds another 8–16 weeks before site start. Buildana sequences both phases so the design effort and the approval effort don't sit waiting on each other.
- Can I build a duplex in Regents Park?
- Duplex feasibility in Regents Park depends on lot size and zoning. The minimum lot for dual occupancy under Cumberland City Council's DCP is 600m², and R3 Medium Density lots in the suburb can support attached duplex or townhouse configurations. We run a feasibility check on title, zone, area, frontage and slope before quoting — no point designing what won't approve.
- What's the granny flat pathway in Regents Park?
- Granny flats in Regents Park are usually built under State Environmental Planning Policy (Affordable Rental Housing) 2009 — secondary dwellings up to 60m², CDC pathway, no DA required on most compliant R2 Low Density & R3 Medium Density lots. Typical rental return is $400–$530/week. The block needs minimum 450m², a primary dwelling already on it, and compliance with side/rear setbacks. Where the lot doesn't comply with SEPP, we lodge a DA with Cumberland City Council.
Nearby Cumberland suburbs we build in
Adjacent Cumberland suburbs covered by the same Cumberland City approval pathway and a similar site-cost profile.
Ready to talk about your Regents Park build?
Free site feasibility, honest cost framing against $2,200–$2,650/m²/m² baseline, fixed-price contract. Cumberland City pathway managed in-house — no surprise variations.