Home Extension Builder Turramurra — Approved in 60 Days
Turramurra 2074 extensions with tight approval timelines. CDC where eligible (~15 days), DA via Ku-ring-gai Council in 40–60 days. Construction 12–24 weeks depending on scope.
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A home extension in Turramurra costs $150,000–$600,000+. Rear extension from $150K, second-storey addition from $300K. Buildana manages design, Ku-ring-gai Council approvals, and construction under one fixed-price contract.
Second-Storey & Rear Additions in Turramurra
Extensions in Turramurra mostly target the post-war and 1960s back-street stock — small kitchens, closed living, no connection to gardens. Heritage Conservation Areas around the village core push to DA. Soil M on the ridge with E pockets near drainage lines. Block sizes 700–1,100m² are tight on the 50% landscaped area rule for any sizeable extension. Realistic budget $300K–$650K.
Most Turramurra blocks run 700–1,100m² on Class M ground. Extension feasibility depends on what's underneath the existing slab and whether the frame can carry a second-storey load — Buildana checks both before quoting, so what's in the contract is what gets built. Median price band: $2.8M–$4.2M. Local services anchor around Turramurra IGA village & Bobbin Head Road.
Buildana manages the complete home extension process in Turramurra — 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 Turramurra from $150K
- Ku-ring-gai Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M soil — structural engineering included
- 1920s–1960s (heavy heritage stock)-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Turramurra 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 Turramurra?
Turramurra is the central village of upper Ku-ring-gai — Bobbin Head Road heading east toward the national park, Pacific Highway shops, and a station on the T1 line. Heritage Conservation Areas around the village limit demolition options on certain streets, but the back-street blocks (700–1,100m²) generally allow KDR with standard Council controls. Soil grades M on the ridge with E pockets near drainage lines.
Turramurra's established streetscape and median house prices of $2.8M–$4.2M reflect a premium location within Ku-ring-gai. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Turramurra station gives Turramurra direct rail access — a strong draw for residents and tenants. 1920s–1960s (heavy heritage stock)-era homes in Turramurra often have good structural foundations worth building on. Extensions add living space at a fraction of the full rebuild cost. Ground conditions (Class M) across Turramurra are well understood by local builders — Buildana's engineering accounts for moderately reactive soil movement.
Home extensions across Ku-ring-gai mostly target the post-war and 1960s–1970s stock that sits between the Federation heritage homes — those mid-century houses often have small kitchens, closed-off living, and no connection to backyards that average 400m² of lawn. Rear ground-floor extensions for kitchen-living-dining and outdoor flow are the most common scope. Second-storey additions on heritage Federation homes need careful design to satisfy Council's character controls — pitched roof forms, articulated dormers, and matched eave detailing. Tree Preservation Order applies to any tree close to the work zone. Realistic budget: $250K–$650K for a 60–120m² addition on a typical Ku-ring-gai block, plus $40K–$80K of council/heritage/structural pre-construction.
Planning Controls — Ku-ring-gai Council
Ku-ring-gai LEP 2015 & Ku-ring-gai DCP. R2 Low Density: FSR 0.3:1 on lots under 1,200m² (sliding down to ~0.27:1 on larger lots), building height 9.5m, front setback 9–12m varying by streetscape, landscaped area 50%, deep soil 30%. Heritage Conservation Areas cover significant portions of Gordon, Killara, Pymble, Wahroonga, Warrawee, Roseville and Turramurra — heritage character assessment is required before any DA. Tree Preservation Order is one of Sydney's strictest: any tree over 5m high or 0.45m trunk circumference needs Council consent before removal. Bushfire planning (Planning for Bushfire Protection 2019) applies in St Ives, St Ives Chase, North Turramurra, North Wahroonga and bush-edge lots — BAL assessment is mandatory. The 2024 NSW TOD reforms permit medium density inside 400m of Roseville, Lindfield, Killara, Gordon, Pymble, Turramurra and Warrawee stations, but Council scrutiny on built form and tree retention remains heavy.
Home extension builder in Turramurra — key facts
- Suburb
- Turramurra, NSW 2074
- Council / LGA
- Ku-ring-gai Council (Ku-ring-gai)
- Primary zoning
- R2 Low Density
- Typical lot size
- 700–1,100m²
- Soil class
- Class M
- Median house price
- $2.8M–$4.2M
- Home era
- 1920s–1960s (heavy heritage stock)
- 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 Turramurra — Local Context
What Turramurra Soil Means for Your Extension
Most blocks across Turramurra (2074) 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 Turramurra 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.
Ku-ring-gai Council & Approval Pathway
Turramurra sits inside the Ku-ring-gai LGA, governed by Ku-ring-gai Council. For a home extension, the approval question is usually CDC vs DA. Extensions in Turramurra usually need a full DA through Ku-ring-gai 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.
Where the Money Goes on a Turramurra Extension
Cost breakdown for a typical extension in Turramurra: structure and frame around 30%, slab and foundations 8–14% (driven by Class M soil), roofing and external 10–12%, services (plumbing, electrical, HVAC) 12–18%, fit-out (kitchen, bathrooms, joinery) 18–25%, and finishes (paint, tiles, flooring) 8–12%. The remaining 4–6% covers approvals, certifications, and site establishment. Buildana itemises every line so you see what you're paying for — no lump sums hiding margin.
Designing for the Turramurra Streetscape
Turramurra's housing stock is predominantly from the 1920s–1960s (heavy heritage stock).. The local anchor is Turramurra IGA village & Bobbin Head Road. For a home extension, the streetscape question matters more than most builders admit — a brand-new double-storey on a street of single-storey 1920s–1960s (heavy heritage stock) weatherboards will draw council attention on bulk and scale, even if technically compliant. Buildana designs the front elevation to read appropriately for the street while modernising the floor plan and structure behind it. Materials palette, roof pitch, fenestration rhythm — all chosen to settle into the existing rhythm rather than fight it.
Building Activity in Turramurra Right Now
Turramurra 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 Turramurra
Second storey on a Turramurra 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.
Turramurra vs Nearby Suburbs
Turramurra vs nearby suburbs — key metrics for extending.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Turramurra2074this suburb | $2.8M–$4.2M | 700–1,100m² | Class M | 1920s–1960s (heavy heritage stock) | Turramurra |
| Warrawee2074 | $3.2M–$4.6M | 900–1,500m² | Class M | 1920s–1960s (heavy heritage stock) | Warrawee |
| Pymble2073 | $3.2M–$5.0M | 1,000–1,800m² | Class M | 1920s–1960s (heavy heritage stock) | Pymble |
| South Turramurra2074 | $2.8M–$4.2M | 800–1,500m² | Class M–H | 1920s–1960s (heavy heritage stock) | Turramurra (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
Walk through your Turramurra 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 Turramurra qualify for CDC — cleaner, faster, no neighbour notification. Second-storey additions typically need DA through Ku-ring-gai 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.
⏱Quality Promise
Our Turramurra home extensions connect old-to-new cleanly. Matched brickwork, tied roofline, no awkward transitions.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single-room addition (bedroom/study) | $76,000 – $180,000 |
| Kitchen/living extension | $190,000 – $440,000 |
| Master suite + ensuite addition | $160,000 – $350,000 |
| Second storey (full or partial) | $350,000 – $690,000 |
| Multi-room ground floor wrap | $440,000 – $760,000 |
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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Last updated: 1 April 2026
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