Granny Flat Builder Seven Hills — Secondary Dwellings from $150K
Fixed-price granny flat construction in Seven Hills 2147. CDC fast-track approval. Blacktown City Council compliant. 1-bed and 2-bed designs. Free site assessment.
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MBA NSW0476 300 300Quick Answer
A granny flat in Seven Hills costs $150,000–$300,000+ depending on size and finishes. 1-bed from $150K, 2-bed from $200K. CDC fast-track approval in 10–15 business days. Buildana manages design, Blacktown City Council approval and fixed-price construction.
Granny Flat Builder in Seven Hills
Seven Hills features spacious blocks from the 1960s–1980s — many 550–700m² — ideal for granny flat construction. Blacktown City Council supports CDC fast-track approval for secondary dwellings on eligible R2-zoned lots. The suburb's proximity to Seven Hills station and M2/M7 motorway access drives solid rental demand for studio and 1-bedroom configurations.
Buildana manages the full granny flat process in Seven Hills — from site assessment and CDC fast-track approval through to fixed-price construction and handover. We build studio, 1-bedroom, and 2-bedroom designs up to the NSW maximum of 60m².
Read our Complete Granny Flat Guide or explore granny flat builds across Sydney.
- Granny flats in Seven Hills from $150K
- CDC fast-track approval (10–15 business days)
- 550–700m² blocks — most qualify for 60m² granny flat
- Seven Hills zoned R2 Low Density
- Fixed-price contract — design to handover
- Class H soil — engineered slab included
- Rental yield $370–$490/week in Seven Hills
- Free site assessment — near Seven Hills station
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
We inspect your Seven Hills block — lot size (typical 550–700m²), setbacks, services, access, Class H soil check and Blacktown City Council requirements. You'll know if a granny flat is feasible before spending a dollar.
⏱Choose from our proven designs or customise: studio, 1-bed, or 2-bed up to 60m². Floor plans designed for Seven Hills's 550–700m² blocks with correct setbacks.
⏱CDC fast-track (10–15 business days) or DA through Blacktown City Council if required. Seven Hills is zoned R2 Low Density. All documentation prepared and lodged by Buildana.
⏱Fixed-price build from engineered slab (Class H) to handover. Typical construction: 10–16 weeks. Milestone updates from your project manager.
⏱Final inspection, Occupation Certificate, 6-year structural warranty, keys. Separate services connected and metered. Rental yield $370–$490/week in Seven Hills.
⏱Quality Promise
Every Buildana granny flat in Seven Hills is built under a fixed-price contract with full Blacktown City Council compliance and a 6-year structural warranty.
Our Team
Oliver Alameri
Founder / Director / Builder
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
Use our free calculator to get an instant cost estimate for your project
Cost Guide
| Item | Estimated Range |
|---|---|
| Studio (25–35m²) | $120,000 – $170,000 |
| 1-bed granny flat (35–45m²) | $150,000 – $210,000 |
| 2-bed granny flat (50–60m²) | $200,000 – $300,000 |
| Site preparation / excavation | $5,000 – $20,000 |
| Service connections | $5,000 – $15,000 |
| Landscaping and external | $5,000 – $15,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
Ready to take the next step?
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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
We Build Across Sydney
Buildana builds across greater Sydney — with deep roots in Western Sydney's Fairfield, Liverpool, Cumberland, Canterbury-Bankstown, and Blacktown LGAs.
Last updated: 1 July 2025
Build a Granny Flat in Seven Hills
Free site assessment for Seven Hills 2147. We'll check your block, recommend the best design, and provide a fixed-price quote.
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