Home Extension Builder Glenmore Park — From $150K Fixed Price
Fixed-price home extensions in Glenmore Park 2745. Rear extension $150K–$300K, second storey $300K–$500K. Penrith City Council approvals managed. Free site consult.
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A home extension in Glenmore Park costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Penrith City Council approvals, and construction under one fixed-price contract.
Glenmore Park Home Extensions & Additions
Glenmore Park homeowners with 1990s–2010s brick + premium contemporary-era properties are increasingly turning to home extensions to gain space without the disruption of a full move. With typical lots of 450–700m², most Glenmore Park properties can accommodate ground-floor or second-storey extensions under Penrith City Council's planning controls. Buildana manages feasibility, design, approvals, and construction for Glenmore Park extension projects under one fixed-price contract.
For a extension in Glenmore Park, the economics are the framing question. Median price $1.0M–$1.6M premium master-planned; build cost on 450–700m² blocks scales by site conditions and specification. Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts ground (extremely reactive clay) keeps foundations honest — $45,000–$80,000 band — and blowouts on that line are the single most common reason fixed-price contracts elsewhere don't stay fixed. Buildana itemises the slab, structural engineering, and geotech work upfront so you see the actual cost in the contract. R3 zoning in pockets of Glenmore Park opens up dual occupancy potential — worth exploring even if you're not initially considering it.
Buildana manages the complete home extension process in Glenmore 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 Glenmore Park from $150K
- Penrith City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts soil — structural engineering included
- 1990s–2010s brick + premium contemporary-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Penrith (5 km) 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 Glenmore Park?
Glenmore Park is the master-planned premium suburb of the LGA — 1990s–2010s brick on 450–700m² R2 blocks with quality estates (Glenmore Park Stage 2, Mulgoa Rise) and proximity to Mulgoa Road and the M4. Family-heavy demographic with strong school catchments. Wianamatta Shale on the ridge.
Residential blocks of 450–700m² across Glenmore Park (2745) provide solid building envelopes for a range of project types. Penrith City Council manages planning controls with well-established DCP provisions. Transport access via Penrith (5 km) connects Glenmore Park to the wider Sydney network. 1990s–2010s brick + premium contemporary-era homes in Glenmore Park often have good structural foundations worth building on. Extensions add living space at a fraction of the full rebuild cost. Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts soil (extremely reactive) is standard for Glenmore Park — Buildana includes engineered slab design in every quote.
Home extension builder in Glenmore Park — key facts
- Suburb
- Glenmore Park, NSW 2745
- Council / LGA
- Penrith City Council (City of Penrith)
- Primary zoning
- R2 Low Density predominant / R3 Medium Density on Penrith CBD/St Marys CBD/Kingswood/Werrington station precincts / R4 (Penrith CBD high-rise zone)
- Typical lot size
- 450–700m²
- Soil class
- Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts
- Median house price
- $1.0M–$1.6M premium master-planned
- Home era
- 1990s–2010s brick + premium contemporary
- 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 Glenmore Park — Local Context
Glenmore Park Block Realities
Typical Glenmore Park blocks are 450–700m² on Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts ground (extremely reactive clay). For a extension, the structural envelope is more constrained than the headline lot size suggests — once you subtract setbacks, easements, landscaped area requirements, and any tree preservation, the actual buildable area is usually 35-45% of the block. We map that early in the feasibility stage so you're designing to what's actually allowed, not what looks possible from the title plan. Foundation cost band on most Glenmore Park blocks: $45,000–$80,000.
City of Penrith Planning Context
City of Penrith has its own LEP and DCP layered over State planning controls. For extending in Glenmore Park, the practical impact: Penrith City Council's DCP sets local rules for streetscape character, materials palette in some precincts, vehicle crossover widths, and tree retention. R2 Low Density predominant / R3 Medium Density on Penrith CBD/St Marys CBD/Kingswood/Werrington station precincts / R4 (Penrith CBD high-rise zone) zoning on most Glenmore Park blocks permits single dwellings, alterations, and additions. Buildana checks every overlay (heritage, bushfire, flood, acid sulfate soil, biodiversity) before quoting.
Realistic Budget for Glenmore Park
For a home extension in Glenmore Park, the budget conversation starts with what you actually want versus what the site supports. Most quotes you'll get from volume builders strip out the things that matter on Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts soil — engineered slab upgrade, decent waterproofing, real drainage design, BASIX-compliant glazing — and present them as variations after you sign. We don't do that. Buildana's contract is fixed-price including everything required to deliver a extension that complies with NCC 2025 on a 450–700m² block in Glenmore Park.
Glenmore Park Housing Stock & What That Means
Most homes in Glenmore Park were built 1990s–2010s brick + premium contemporary. Modern homes in this era generally have no asbestos, though survey is still standard before any major works. Existing structures from 1990s–2010s brick + premium contemporary usually need wiring, plumbing, and insulation upgrades to meet NCC 2025 — worth costing that into the extension scope upfront, not as a variation later.
Penrith City Council Processing & Glenmore Park Activity
Penrith City Council processes thousands of residential applications a year across the City of Penrith LGA, and Glenmore Park (2745) sits in the active end of that workload. For a home extension, the realistic clock from lodgement to DA determination is 8-14 weeks. The applications that move to the front of the queue are the ones where every required document is correctly named, drawn to scale, and matched against the SEPP or LEP clause it's claiming compliance with. Buildana lodges every project at that standard — not because it's required, but because it's how you avoid sitting in the RFI loop for an extra month.
Builder's Take on Glenmore Park
Penrith City Council setback and height rules apply to the extension, not the whole house. An older Glenmore Park 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 Glenmore Park 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.
Glenmore Park vs Nearby Suburbs
Glenmore Park vs nearby suburbs — key metrics for extending.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Glenmore Park2745this suburb | $1.0M–$1.6M premium master-planned | 450–700m² | Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts | 1990s–2010s brick + premium contemporary | Penrith (5 km) |
| South Penrith2750 | $850K–$1.3M typical; $1.0M–$1.6M Glenmore Park/Jordan Springs premium master-planned; $1.6M–$3.0M+ Mulgoa/Wallacia/Castlereagh acreage | 450–750m² typical (Cranebrook/Werrington/Cambridge Park/Kingswood/St Marys); 250–450m² master-planned (Jordan Springs/Caddens/Glenmore Park new release) | Class M (Wianamatta Shale predominant) / Class P/E (Hawkesbury–Nepean alluvial corridor on Cranebrook/Castlereagh/Emu Plains/Penrith Lakes; flood planning controls under Penrith DCP 2014) / industrial-legacy contamination overlays on Werrington/St Marys legacy precincts | 1960s–1980s fibro/brick veneer (Cranebrook/Werrington/Cambridge Park/Kingswood/St Marys) + 1990s–2010s brick (Glenmore Park/Cambridge Gardens) + 2010s+ master-planned (Jordan Springs/Caddens/Claremont Meadows) | Penrith (2 km) |
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.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
How It Works
From First Call to Final Key
The first job on an extension is finding out what you're extending onto. Glenmore Park homes from the 1990s–2010s brick + premium contemporary 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
We extend Glenmore Park homes with a structural engineer on every job. Second storey, rear addition, multi-room — engineered and priced upfront.
Cost Guide
| Item | Estimated Range |
|---|---|
| Simple rear extension (single wall removal, no roof change) | $90,000 – $200,000 |
| Moderate extension (multiple openings, roof extended) | $200,000 – $380,000 |
| Complex extension (structural steel portals, re-roofing) | $380,000 – $600,000 |
| Second-storey tie-in (existing house re-engineered) | $350,000 – $650,000 |
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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Liverpool, NSW
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