Licensed Home Renovation Builder Seven Hills
NSW licensed renovator. Seven Hills 2147 1960s–1980s-era homes — asbestos assessment, AS 3740 wet-area waterproofing, structural sign-off where required. Code-compliant, certificate-backed.
HIA Member
MBA NSW0476 300 300Quick Answer
A home renovation in Seven Hills costs $100,000–$500,000+. Kitchen from $30K, bathroom from $20K, full renovation from $150K. Buildana manages design, Blacktown City Council approvals (where required), and construction under one fixed-price contract.
Seven Hills Renovation Specialists
Seven Hills features 1960s–1980s-era family homes on generous blocks that respond well to renovation. Kitchen-dining-living modernisations, bathroom upgrades, and laundry improvements are popular. The family-friendly suburb makes renovating ideal for those wanting better amenities without changing school catchments. Blacktown City Council requirements apply — Buildana manages all compliance.
For a renovation in Seven Hills, the economics are the framing question. Median price $900K–$1.15M; build cost on 550–700m² blocks scales by site conditions and specification. Class H ground (highly reactive clay) keeps foundations honest — $32,000–$55,000 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. R2 Low Density zoning across Seven Hills keeps the suburb residential, which protects long-term value.
Buildana manages the complete home renovation process in Seven Hills — from initial consultation and design through to approvals (where required) and fixed-price construction to handover. Your home, modernised.
Not sure whether to renovate or rebuild? Use our Renovation vs KDR Calculator or read the renovation vs knockdown rebuild comparison.
- Home renovations in Seven Hills from $100K
- Blacktown City Council approvals managed (where required)
- Kitchen, bathroom, and full-home renovations
- 1960s–1980s-era homes — renovation specialists
- Asbestos assessment and removal included
- Staged renovation plans to minimise disruption
- 6-year structural warranty on structural work
- Free consultation — near Seven Hills station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Why Renovate in Seven Hills?
Seven Hills is a family-friendly suburb with generous block sizes and a mix of 1960s–1980s housing stock. Many homes are ready for knockdown rebuild or extension, supported by R2 zoning and proximity to Seven Hills station and M2/M7 motorways.
Seven Hills's mix of 1960s–1980s-era housing on 550–700m² blocks creates strong opportunity for property improvement. Median prices of $900K–$1.15M support quality build investment. Seven Hills benefits from Seven Hills station on the doorstep — walkable rail access lifts both rental demand and property values. Renovating 1960s–1980s-era homes in Seven Hills is a smart play when the structure is sound. Kitchen and bathroom upgrades typically return 60–80% of investment in added property value. Soil conditions in Seven Hills (Class H, highly reactive) are factored into every Buildana foundation design.
Renovation demand across Blacktown LGA is driven by homeowners wanting to modernise 1970s–1990s homes without the cost and disruption of a full KDR. Kitchen and bathroom renovations, open-plan living conversions, and energy efficiency upgrades are the most common projects. Blacktown's competitive building costs keep renovation budgets achievable — typically $80K–$350K depending on scope. Buildana provides fixed-price renovation contracts.
Planning Controls — Blacktown City Council
Blacktown LEP 2015 & DCP Section 6. R2 zones: FSR 0.5:1, building height 9m, front setback 4.5m–6m (varies by lot width), landscaped area 30%. CDC-eligible designs can fast-track approval to 10–15 business days.
Home renovation builder in Seven Hills — key facts
- Suburb
- Seven Hills, NSW 2147
- Council / LGA
- Blacktown City Council (Blacktown City)
- Primary zoning
- R2 Low Density
- Typical lot size
- 550–700m²
- Soil class
- Class H
- Median house price
- $900K–$1.15M
- Home era
- 1960s–1980s
- Typical price range
- $30,000 – $500,000+
- Typical timeline
- 3–8 months depending on scope
- Approval pathway
- Exempt development for cosmetic, CDC/DA for structural
Building in Seven Hills — Local Context
Ground Conditions That Affect Your Build
Class H is the rule across Seven Hills — highly reactive clay. For your renovation, expect engineered footings in the $32,000–$55,000 range. The variables that shift you up or down inside that band: building footprint, number of storeys, point loads (heavy stone benchtops, masonry feature walls), and whether the adjacent stormwater system needs upgrading. site access on tighter blocks adds a logistics premium, which is why we cost cranage and material delivery before signing, not after.
Blacktown City Council & Approval Pathway
Seven Hills sits inside the Blacktown City LGA, governed by Blacktown City Council. For a renovation, the approval question is usually CDC vs DA. Renovations in Seven Hills usually need a full DA through Blacktown 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 Seven Hills Renovation
Cost breakdown for a typical renovation in Seven Hills: structure and frame around 30%, slab and foundations 8–14% (driven by Class H 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.
Building to Suit Seven Hills
Seven Hills's R2 Low Density zoning, 550–700m² blocks, and 1960s–1980s housing stock set the design context. For a renovation, the practical implications: renovations of 1960s–1980s homes work when you keep what's worth keeping and replace decisively — half-measures on plumbing or wiring create problems in 5-10 years. Buildana's design phase resolves all of this before you commit to construction pricing.
Realistic Seven Hills Timeline
End-to-end timeline for a renovation in Seven Hills, lodgement-realistic: 8-14 weeks for DA, depending on neighbour notification and any RFI rounds. Add 2-3 weeks for documentation pack assembly before lodgement (BASIX, geotech for Class H, contour survey, hydraulic). Add 1 week for Construction Certificate post-approval. Construction varies by scope but most runs 2-6 months. Buildana provides a dated programme in every contract, not a vague "12-18 months" range.
Builder’s Take on Seven Hills
Electrical rewires on 1960s–1980s Seven Hills homes are often needed. Old cabling doesn't meet AS/NZS 3000 standards, circuit counts are insufficient for modern loads, and safety switches might be missing. Partial or full rewire adds $8K–$25K to a full renovation but brings the house to current compliance.
The temptation on a Seven Hills renovation is to "do it in stages" over years. Almost always worse value than a single consolidated scope. Trade mobilisation costs get duplicated, finishes don't match across stages, and total cost creeps 20–30% higher. One scope, one contract, one clean job.
Seven Hills vs Nearby Suburbs
Seven Hills vs nearby suburbs — key metrics for renovating.
| Suburb | Median Price | Typical Lot | Soil Class | Era | Station |
|---|---|---|---|---|---|
| Seven Hills2147this suburb | $900K–$1.15M | 550–700m² | Class H | 1960s–1980s | Seven Hills |
| Blacktown2148 | $850K–$1.1M | 550–750m² | Class M–H | 1960s–1980s | Blacktown |
| Toongabbie2146 | $1.0M–$1.3M | 450–650m² | Class M | 1950s–1970s | Toongabbie |
| Prospect2148 | $850K–$1.1M | 550–700m² | Class M–H | 1970s–1990s | Seven Hills (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.
Want a real number for YOUR block — not a generic estimate?
Free site assessment, fixed-price contract, line-itemised quote within 48 hours. No high-pressure sales — just a real builder talking real numbers.
Cost Guide
| Item | Estimated Range |
|---|---|
| Single-room renovation (bathroom, kitchen) | $23,000 – $74,000 |
| Multi-room (kitchen + 1 bathroom) | $74,000 – $150,000 |
| Full internal renovation (kitchen, bathrooms, floors) | $150,000 – $300,000 |
| Full home renovation (all wet areas + living zones) | $300,000 – $560,000 |
| Premium full renovation (high-spec finishes) | $560,000+ |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
How It Works
From First Call to Final Key
Everything that has to be right before we touch the ground. We assess your Seven Hills home — existing condition, renovation scope, structural requirements, and budget. You'll receive a clear overview of costs and timeline before committing. Design phase includes floor plan modifications, 3D kitchen and bathroom renders, material palettes, and electrical layout. You approve every detail before construction begins.
⏱The Seven Hills construction phase. Fixed price, programmed, supervised. For renovations that need DA or CDC, we lodge structural drawings, hydraulic if wet areas move, BASIX if envelope changes, and SEE if DA. For pure cosmetic work, no lodgement, no permit fees — straight to scheduling trades. Fixed-price renovation from demolition of existing fittings to final finish. Staged programme keeps parts of your home liveable. All trades coordinated by your project manager with weekly updates.
⏱The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Handover includes a defect walk-through where we mark any final touch-ups, complete them within a week, and re-inspect. The end-state is genuinely finished — not handed over with a list to chase trades back for.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
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Still got questions? Talk to Oliver directly.
30-min free call — bring your block, your brief, your budget. We'll map out feasibility, timeline, and realistic cost. No sales pitch.
Frequently Asked Questions
Buildana built our granny flat in just 12 weeks. Fast approvals, great communication, and a beautiful final product. Highly recommend.
Fatima Al-Rashid
Liverpool, NSW
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Headquartered in Western Sydney's Fairfield. Active across all 28 metropolitan Sydney LGAs — from Penrith to the Eastern Suburbs, the Hills to the Sutherland Shire.
Last updated: 1 April 2026
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Other Buildana services in Seven Hills
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Seven Hills 2147. Blacktown City Council regulations and local controls are covered on each page.