Granny Flat Builder Pennant Hills — From $150K Fixed Price
Fixed-price granny flat construction in Pennant Hills 2120. 1-bed from $150K, 2-bed from $185K. CDC approval, Hornsby Shire Council compliant. No hidden extras.
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A granny flat in Pennant 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, Hornsby Shire Council approval and fixed-price construction.
Granny Flat Builder in Pennant Hills
Pennant Hills has its own station and a heritage village character — Federation cottages, inter-war homes and 1960s to 1990s brick on generous 700 to 1,200m² blocks, with strong school catchments. On the residential blocks a granny flat works well; the station gives it a rental market and the heritage streets shape the path.
The blocks are big, so space rarely limits you. Where a block sits in a Heritage Conservation Area, expect a DA with a sympathetic design rather than a fast-track. The sandstone means rock excavation to plan for.
The Hawkesbury Sandstone commonly adds $30,000 to $120,000 for rock, and some bushland-fringe blocks carry a BAL rating. I check the heritage, rock and bushfire before quoting.
Fixed price with the heritage, rock and bushfire all sorted first. Licence HBL 487805C.
Buildana manages the full granny flat process in Pennant 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 Pennant Hills from $150K
- CDC fast-track approval (10–15 business days)
- 700–1,200m² typical (Hornsby/Asquith/Pennant Hills/Beecroft/Wahroonga boundary/Cherrybrook); 1–5ha acreage (Galston/Berrilee/Arcadia/Forest Glen/Glenorie/Berowra Heights bushland fringe) blocks — most qualify for 60m² granny flat
- Pennant Hills zoned R2 Low Density predominant / R3 Medium Density on Hornsby/Asquith/Waitara/Pennant Hills station precincts / R4 (Hornsby CBD high-rise zone) / RU2 Rural Landscape (Galston/Berrilee/Arcadia/Forest Glen/Glenorie acreage belt)
- Fixed-price contract — design to handover
- Hawkesbury Sandstone bedrock — engineered slab included
- Rental yield $520–$720/week (Hornsby Hospital + Hornsby TAFE + Macquarie University proximity) in Pennant Hills
- Free site assessment — near Pennant Hills station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Generous blocks, good market
Pennant Hills' 700 to 1,200m² blocks give real room for a proper second dwelling with its own yard. With the station and strong school catchments — Pennant Hills High, Loreto Normanhurst nearby — the demand for a well-built flat is steady, whether for a rental or family.
Where a block sits in a Heritage Conservation Area, the build goes down the DA path with a design that respects the village character. More process, and here it's warranted.
Sandstone rock, tested
The Hawkesbury Sandstone means rock excavation is common — usually $30,000 to $120,000 above a standard substructure — so I get a geotech bore and put the rock in the fixed price rather than hitting it mid-build.
Some bushland-fringe blocks carry a BAL rating too, which I check on the mapping. A tidy flat here lets steadily off the station, though I won't quote a weekly figure I can't back.
Granny flat builder in Pennant Hills — key facts
- Suburb
- Pennant Hills, NSW 2120
- Council / LGA
- Hornsby Shire Council (Hornsby Shire)
- Primary zoning
- R2 Low Density predominant
- Typical lot size
- 700–1,200m² typical (Hornsby/Asquith/Pennant Hills/Beecroft/Wahroonga boundary/Cherrybrook); 1–5ha acreage (Galston/Berrilee/Arcadia/Forest Glen/Glenorie/Berowra Heights bushland fringe)
- Soil class
- Hawkesbury Sandstone bedrock
- Median house price
- $2.6M–$3.6M premium heritage
- Home era
- 1900s–1940s Federation heritage
- Typical price range
- $150,000 – $300,000+
- Typical timeline
- 4–6 months design to handover
- Approval pathway
- CDC via NSW Affordable Rental Housing SEPP (10–15 days)
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.
How It Works
From First Call to Final Key
We inspect your Pennant Hills block — lot size (typical 700–1,200m² typical (Hornsby/Asquith/Pennant Hills/Beecroft/Wahroonga boundary/Cherrybrook); 1–5ha acreage (Galston/Berrilee/Arcadia/Forest Glen/Glenorie/Berowra Heights bushland fringe)), setbacks, services, access, Class Hawkesbury Sandstone bedrock soil check and Hornsby Shire Council requirements. You'll know if a granny flat is feasible before spending a dollar.
⏱Design phase covers layout, orientation on your Pennant Hills block, bathroom and kitchen placement, natural light, privacy screening, and entry path. You approve the design before we move to certification.
⏱Approval pack lodged with our preferred private certifier (Buildana works with several across the Hornsby Shire area). They've reviewed our designs before, know our documentation standard, and turn approvals around at the fast end of the legislated window.
⏱Construction runs 10–16 weeks from slab pour. Class Hawkesbury Sandstone bedrock engineered slab, timber or steel frame, Colorbond roof, full internal fit-out, and separate service connections.
⏱Handover documentation includes everything you need to list with a property manager: OC, BASIX, structural cert, appliance manuals, separate metering details. Photos for the listing taken before furniture goes in.
⏱Quality Promise
Our Pennant Hills granny flat builds run on CDC fast-track where eligible. 10–15 business days to approval, 12 weeks to handover, fixed price.
Cost Guide
| Item | Estimated Range |
|---|---|
| Rental income model (Pennant Hills 1-bed) | $180,000 – $230,000 |
| Family member (dependent living) | $200,000 – $260,000 |
| Teenager retreat / adult child | $170,000 – $220,000 |
| Home office / short-stay | $160,000 – $210,000 |
| Future main dwelling (build granny first, big house later) | $210,000 – $270,000 |
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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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
We Build Across Sydney
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 July 2025
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