Liberty Grove Home Builder — Custom Homes, KDR, Duplex
Licensed NSW builder (HBL 487805C) · Fixed-price contracts · Canada Bay DA + CDC managed in-house
Liberty Grove is the master-planned gated community on the former Olympic Games site — contemporary villas and townhouses on 200–400m² blocks. Built 1990s–2000s. No heritage stock. Wianamatta Shale soil. Premium for security, master-planned amenity and Sydney Olympic Park proximity.
City of Canada Bay Council controls planning across Liberty Grove, with R3 master-planned as the dominant zone and a duplex minimum of 600m² where dual occupancy applies. Soil sits at M–H, and most homes here date from 1990s–2000s master-planned — so demolition, slab and structural assumptions all need to be set against that, not a generic Sydney average.
Council
City of Canada Bay
Median price
$1.6M–$2.8M
Build cost (mid-spec)
$2,000–$2,000/m²
Typical lot
200–400m²
Soil class
M–H
DA timing
11–15 wks
Builder perspective
Building in Liberty Grove — what we actually look at first
Liberty Grove isn't like anywhere else in the LGA — it's a master-planned gated community built on the former Olympic Games site, and a builder in Liberty Grove works within body-corporate and estate controls rather than council heritage ones. The stock is 1990s–2000s contemporary villas and townhouses on tight 200–400m² blocks, with no heritage layer, security, and Sydney Olympic Park on the doorstep. Median $1.6M–$2.8M.
The brief here is renovation and reconfiguration far more than knockdown rebuild — these are relatively young homes on small master-planned lots, so the work is usually interior transformation, second-storey additions within the estate rules, and modernising a 1990s–2000s layout. The estate and any strata controls set the envelope, and Wianamatta Shale keeps footings standard. This is precise, controls-aware building on compact blocks. We read the estate rules first, then design the upgrade that works within them.
Oliver Alameri — Founder & licensed builder
HBL 487805C · Reading Liberty Grove sites since day one
Liberty Grove build context
The data we use to feasibility-check a Liberty Grove lot before quoting.
Council
City of Canada Bay
Postcode
2138
Primary zoning
R3 master-planned
Typical lot size
200–400m²
Predominant home era
1990s–2000s master-planned
Soil class (AS 2870)
M–H
Duplex minimum lot
600m²
Median price band
$1.6M–$2.8M
Granny flat rental
$550–$850/week
Train station
Concord West (1 km)
Build cost (mid-spec)
$2,000–$2,000/m² · Rawlinsons 2026
Why owners build with Buildana in Liberty Grove
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.
- City of Canada Bay 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: Liberty Grove village green. Train: Concord West (1 km).
Liberty Grove build economics
Indicative cost ranges for a Buildana build in Liberty Grove, benchmarked against the Rawlinsons Australian Construction Handbook 2026 Sydney baseline and adjusted for the local cost profile (Liberty Grove sits below the Sydney median by 10%). 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) | $2,000–$2,000/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) | $2,000–$3,000/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) | $3,000–$4,000/m² × 350m²+ | Full-brick or rendered structure, hardwood or stone external, custom joinery throughout — Rawlinsons high-spec baseline. |
| Detached duplex (combined 350m² GFA) | $2,000–$3,000/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) | $2,000–$3,000/m² × 200m² + $0–$0K demo | Demolition (incl. SafeWork-licensed asbestos clearance), geotech, slab, frame, full mid-spec finish. |
| Granny flat (60m², Class 1a) | $170,000–$240,000 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 Liberty Grove cost profile via Buildana's internal suburb cost-adjustment matrix. Figures exclude land, professional fees, council contributions and FF&E.
Free Liberty Grove feasibility
Thinking about building in Liberty Grove? 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 Liberty Grove
All six core services delivered across the Canada Bay — each one priced against Liberty Grove'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.
Liberty Grove knockdown rebuild approachDuplex
Detached duplex on the lots that allow it — twin homes, independent driveways, independent BASIX, often Torrens-title at completion.
Liberty Grove duplex approachGranny Flat
Secondary dwellings under SEPP — 60m², usually CDC, often no neighbour notification needed.
Liberty Grove granny flat approachCustom Home
Design and construct under one fixed-price contract — the architect and the builder are on the same team from concept.
Liberty Grove custom home approachExtension
Extensions that look like the home grew that way — not a clear before/after line at the addition boundary.
Liberty Grove extension approachRenovation
Renovation done by a licensed builder, not a generalist — structural changes, waterproofing and finishes all in one contract.
Liberty Grove renovation approachApproval pathway in Liberty Grove
Canada Bay Council, the Parramatta River foreshore municipality.
Buildana lodges roughly two-thirds of Liberty Grove matters as CDCs and one-third as DAs. The split tracks the design: rectangular single-storey on a regular R3 master-planned 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 (11–15 weeks for a single-dwelling da) with fees of $2,000–$3,400 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
City of Canada Bay merit assessment · 11–15 weeks for a single-dwelling DA · DA fees $2,000–$3,400 base for a Class 1a residential DA. Used where the design pushes a code limit.
Section 7.11 / 7.12 developer contributions in Liberty Grove: Typically $8K–$18K per dwelling.
Liberty Grove site considerations
Site cost variability in Liberty Grove comes from two main drivers. First, soil — with M–H 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 1990s–2000s master-planned 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–H (Wianamatta Shale) / H (river/bay fall) reactivity drives waffle-pod, stiffened raft or piered slab — engineered to a real geotech, not a desktop guess.
Demolition
Pre-1990 1990s–2000s master-planned stock means SafeWork-licensed asbestos clearance — priced into the contract upfront, with the clearance certificate before slab pour.
Flood & bushfire
Flood risk: low. Bushfire risk: very low. Heritage exposure: moderate. We map your lot against each before quoting.
Local overlays the City of Canada Bay planner will check first
- Heritage (Concord, Cabarita, Five Dock pockets)
- Foreshore Scenic Protection Area (Parramatta River, Iron Cove, Hen and Chicken Bay)
- Acid sulfate soils on river flats
- Industrial-legacy contamination
Recent builds nearby
Buildana projects in the Canada Bay
We work continuously across Canada Bay — single-storey customs, double-storey rebuilds, side-by-side duplex on R2 lots that comply with City of Canada Bay's DCP minimum frontage, granny flats on SEPP secondary-dwelling pathways. Most projects start with the same conversation we'd have about your Liberty Grove 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 studiesCanada Bay hub
Full Canada Bay builder hub — every suburb we work in, every service, council pathway notes.
Open Canada Bay hubFree Liberty Grove site check
Send your Liberty Grove address — we'll run title, zone, slope, frontage and soil before you spend a dollar.
Book a site checkLiberty Grove build FAQs
The questions we get asked most often on a first Liberty Grove site walk.
- What soil class is typical in Liberty Grove 2138?
- Liberty Grove ground is typically M–H 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 Liberty Grove?
- End values in Liberty Grove sit in the $1.6M–$2.8M 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 $2,000–$3,000/m² × 200m² + $0–$0k 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 Liberty Grove?
- Yes — ground-floor additions, second-storey adds, full-house renovations, kitchens and bathrooms in Liberty Grove. The complication on 1990s–2000s master-planned 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 City of Canada Bay Council?
- 11–15 weeks for a single-dwelling DA. 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 $2,000–$3,400 base for a class 1a residential da range. Buildana lodges either pathway and runs all RFI responses through to determination.
- Why does Liberty Grove cost different from a generic Sydney average?
- Liberty Grove sits 10% below the Sydney metropolitan median build cost. Drivers are typically newer release-area lots (less demolition, simpler site access) and lower-density street patterns that make material delivery and crane access straightforward.
- How long does a custom home build take in Liberty Grove?
- From contract signed to handover, a single-storey 4-bedroom custom home in Liberty Grove typically takes 9–11 months on a CDC pathway, or 12–14 months if the design needs a DA through City of Canada Bay 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 Liberty Grove?
- Duplex feasibility in Liberty Grove depends on lot size and zoning. The minimum lot for dual occupancy under City of Canada Bay 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 Liberty Grove?
- Granny flats in Liberty Grove 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 R3 master-planned lots. Typical rental return is $550–$850/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 City of Canada Bay Council.
Nearby Canada Bay suburbs we build in
Adjacent Canada Bay suburbs covered by the same City of Canada Bay approval pathway and a similar site-cost profile.
Ready to talk about your Liberty Grove build?
Free site feasibility, honest cost framing against $2,000–$2,000/m²/m² baseline, fixed-price contract. City of Canada Bay pathway managed in-house — no surprise variations.