Home Extension Clovelly — Design, Approval, Structural, Build
Full-service extensions in Clovelly 2031: structural survey of existing 1900s–1940s home, design, Randwick City Council approval, engineering, weatherproofed construction, matched finish to original dwelling.
HIA Member
MBA NSW0476 300 300Home Extension Builder in Clovelly
Extension is the dominant scope across most of Clovelly given beachside HCAs. Federation cottage additions, inter-war heritage extensions, cliff-top additions on Clovelly Bay edge. Suspended slabs and substantial retaining on cliff-fall sites. Coastal salt-grade specs mandatory. Realistic budget $450K–$1.2M for 70–140m² addition; $1M–$2.5M direct beachfront/clifftop. Pre-construction 7–9 months.
Practical realities of extending in Clovelly: Nearest rail is Light Rail Randwick (2 km), which influences site access during construction (deliveries, cranage, skip placement). 250–600m² blocks usually have enough room for proper site set-up, but tight battle-axe lots and narrow frontages need staging plans factored into the build program. Randwick City Council processes a steady volume of residential applications — clean documentation moves fast, and Buildana lodges everything at full standard the first time. Class M (sandstone ridges) / H–E (cliff fall on coast) soil (extremely reactive clay) sets foundation cost in the $45,000–$80,000 range; budget allocation for that line item is fixed in your contract, not estimated.
Buildana manages the complete home extension process in Clovelly — 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 Clovelly from $150K
- Randwick City Council DA and CDC approvals managed
- Ground floor, rear and second-storey additions
- Class M (sandstone ridges) / H–E (cliff fall on coast) soil — structural engineering included
- 1900s–1940s-era homes assessed for extension suitability
- Connect new to existing — clean, matched finish
- 6-year structural warranty
- Free design consultation — near Light Rail Randwick (2 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 Clovelly?
Clovelly is the small beachside village between Coogee and Bronte — Federation cottages, inter-war heritage and contemporary cliff-top on 250–600m² blocks. Heritage Conservation Areas cover most older streets. Sandstone-dominant with substantial fall to Clovelly Bay. Coastal salt-grade specs standard.
Clovelly's established streetscape and median house prices of $3M–$6.5M reflect a premium location within Randwick. Building costs sit above the metro average, offset by stronger capital growth and rental returns. Transport access via Light Rail Randwick (2 km) connects Clovelly to the wider Sydney network. 1900s–1940s-era homes in Clovelly often have good structural foundations worth building on. Extensions add living space at a fraction of the full rebuild cost. Soil conditions in Clovelly (Class M (sandstone ridges) / H–E (cliff fall on coast), extremely reactive) are factored into every Buildana foundation design.
Extension is the dominant scope across Randwick coastal heritage suburbs (Clovelly, Coogee village, South Coogee, Maroubra heritage core, Malabar, La Perouse) and Daceyville garden suburb where KDR is restricted. Federation cottage additions, inter-war heritage extensions, cliff-top heritage-grade work all common. Suspended slabs and substantial retaining on cliff-fall sites. Coastal salt-grade specs standard on coastal-facing builds. Heritage Council expects retention of stained glass, ornate plasterwork, slate roofing on protected streets. Apartment renovations the other major category along Anzac Parade UNSW corridor through Kensington/Kingsford, Coogee village, Maroubra Junction. Realistic budget $300K–$900K for thoughtful 60–130m² addition inland/mid-tier; $700K–$1.8M premium coastal heritage-grade work; $1.2M–$3M direct beachfront/clifftop.
Planning Controls — Randwick City Council
Randwick LEP 2012 & Randwick DCP 2013. R2 Low Density covers most residential streets: FSR 0.55–0.65:1, building height 9.5m, front setback 4–6m, landscaped area 35–40%. R3 Medium Density along Coogee Bay Road, Carrington Road, Belmore Road, Maroubra Road and Anzac Parade permits FSR up to 0.9:1. R4 High Density and B4 Mixed Use concentrated on the Anzac Parade UNSW corridor through Kensington and Kingsford, Randwick Junction, Coogee village and Maroubra Junction. Heritage Conservation Areas cover Daceyville (entire suburb), Coogee village, Clovelly, parts of Maroubra and South Coogee, Randwick Junction, La Perouse, Malabar and Kensington/Kingsford pockets. Tree Preservation Order LGA-wide. Sandstone-dominant soil with substantial cliff fall on the eastern coast from Clovelly through South Coogee to Malabar Headland — suspended slabs and substantial retaining standard, rock excavation $20K–$60K. Coastal salt-grade specifications mandatory across all coastal-facing builds (Clovelly, Coogee, South Coogee, Maroubra, Malabar, Little Bay, La Perouse). Aboriginal cultural heritage protocols apply on the La Perouse headland and parts of the Botany Bay foreshore. UNSW campus and Light Rail (Randwick line + Kingsford line) drive density along Anzac Parade. The new Randwick Health & Innovation Precinct (Prince of Wales Hospital, UNSW Health Translation Hub) is the LGA's signature strategic centre. Randwick Racecourse and Centennial Parklands frontage on the western edge of the LGA.
Home extension builder in Clovelly — key facts
- Suburb
- Clovelly, NSW 2031
- Council / LGA
- Randwick City Council (Randwick)
- Primary zoning
- R2 Low / R3 Medium (Coogee/Maroubra/Kingsford R4 spines)
- Typical lot size
- 250–600m²
- Soil class
- Class M (sandstone ridges) / H–E (cliff fall on coast)
- Median house price
- $3M–$6.5M
- Home era
- 1900s–1940s
- 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 Clovelly — Local Context
Foundations & Slab Design for Clovelly
Clovelly's ground is extremely reactive clay (Class M (sandstone ridges) / H–E (cliff fall on coast)). On a 250–600m² block, that translates to engineered slab work in the $45,000–$80,000 bracket for a extension. Double-check any quote that doesn't itemise the slab — 'slab as per engineering' usually means the builder will hit you with a variation once the soil report comes back. 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.
Randwick City Council & Approval Pathway
Clovelly sits inside the Randwick LGA, governed by Randwick City Council. For a home extension, the approval question is usually CDC vs DA. Extensions in Clovelly usually need a full DA through Randwick City 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 Clovelly Extension
Cost breakdown for a typical extension in Clovelly: structure and frame around 30%, slab and foundations 8–14% (driven by Class M (sandstone ridges) / H–E (cliff fall on coast) 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 Clovelly Streetscape
Clovelly's housing stock is predominantly from the 1900s–1940s. Light Rail Randwick (2 km) from the nearest station. The local anchor is Clovelly Beach & Bay. For a home extension, the streetscape question matters more than most builders admit — a brand-new double-storey on a street of single-storey 1900s–1940s 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 Clovelly Right Now
Clovelly 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 Clovelly
Existing-structure assessment is the non-negotiable first step. Clovelly 1900s–1940s homes often have undersized footings or termite-damaged wall plates that won't carry a second storey. We check with drilled inspections before quoting — no point designing a dream that's not structurally viable.
Second storey on a Clovelly 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.
Clovelly vs Nearby Suburbs
Clovelly vs nearby suburbs — key metrics for extending.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Clovelly2031this suburb | $3M–$6.5M | 250–600m² | Class M (sandstone ridges) / H–E (cliff fall on coast) | 1900s–1940s | Light Rail Randwick (2 km) |
| Coogee2034 | $2.8M–$6M | 250–600m² | Class M (sandstone ridges) / H–E (cliff fall on coast) | 1900s–1940s + apartments | Light Rail Randwick (2 km) |
| Bronte2024 | $3.5M–$10M | 250–700m² | Class M (sandstone ridges) / H–E (cliff fall) | 1900s–1940s + apartments | Bondi Junction (3 km) |
| Randwick2031 | $2.5M–$5M | 250–600m² | Class M (sandstone ridges) / H–E (cliff fall on coast) | 1900s–1940s + apartments | Light Rail Randwick (in suburb) |
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.
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Quality Promise
We extend Clovelly homes with a structural engineer on every job. Second storey, rear addition, multi-room — engineered and priced upfront.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. Free consultation at your Clovelly home. We inspect the existing structure, check Randwick City Council's controls, measure available space, and discuss what you need. You get a clear scope, budget range, and timeline before committing. Two design moves are usually on the table: match the existing house so the extension reads as original, or contrast with it so the new section is clearly modern. Both work — choice is aesthetic, and we'll show 3D renders of both before you commit.
⏱The Clovelly construction phase. Fixed price, programmed, supervised. CDC (10–15 business days) or DA through Randwick City Council depending on scope. Structural engineering, BASIX, and all documentation prepared and lodged. Construction Certificate obtained. Construction phase connects new to existing — footings, frame, roof tie-in, waterproofing at junction, internal fit-out and external finish. Staged works minimise disruption to your daily routine in Clovelly.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Final inspection focuses on the integration: paint blend, flooring transitions, ceiling height, junction waterproofing, sound transmission. The extension shouldn't feel bolted on — it should feel like the house was always meant to be this size.
⏱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
Extend, Don't Move — Clovelly
Free design consultation for Clovelly 2031. We'll assess your home, design the extension, and provide a fixed-price quote.
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