Granny Flat Builder Henley — Approval in 10 Days, Finished in 14 Weeks
Henley 2111 secondary dwellings via the NSW Affordable Rental Housing SEPP. CDC fast-track (10–15 days), construction in 14–20 weeks. Free site check.
HIA Member
MBA NSW0476 300 300Building Granny Flats in Henley
Henley is the small Parramatta River foreshore pocket of Hunters Hill — Federation and inter-war heritage on 500 to 1,200m² blocks with substantial fall to the river. Like the rest of Hunters Hill, it's heritage-covered and sandstone-heavy, so a granny flat here is a considered, DA-path addition rather than a quick yield play.
The blocks are generous, so space isn't the limiter. At Henley values it's usually a quality studio, guest quarters or family accommodation, built to a standard that suits a heritage home. The river fall and the sandstone are the technical work.
Most blocks fall to the river, so a second dwelling often steps down the site or sits on a suspended footing, with rock excavation to get in — commonly $40,000 to $140,000 above a standard substructure. Water-frontage lots carry the Foreshore Building Line and a Crown Lands referral.
Fixed price with the heritage, rock, fall and foreshore all worked out first. Licence HBL 487805C.
Buildana manages the full granny flat process in Henley — 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 Henley from $150K
- CDC fast-track approval (10–15 business days)
- 500–1,200m² blocks — most qualify for 60m² granny flat
- Henley zoned R2 Low Density (heritage predominant) / R3 Medium Density limited to Gladesville town centre
- Fixed-price contract — design to handover
- Hawkesbury Sandstone bedrock — engineered slab included
- Rental yield $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting) in Henley
- Free site assessment — near Wollstonecraft (5 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Heritage and the river fall
Heritage Conservation Areas cover most Henley streets, so a granny flat here is almost always a DA with a design that sits sympathetically on the streetscape. That's warranted in a suburb like this — the heritage is the point.
On the blocks that fall to the Parramatta River, a second dwelling often steps down the site or sits on a suspended footing rather than a flat slab. Placed well, it can capture the river outlook.
Deep sandstone and foreshore
The sandstone means rock excavation to get in — commonly $40,000 to $140,000 above a standard substructure — so I get a geotech bore first because guessing the rock here is expensive. Water-frontage lots carry the Foreshore Building Line and a Crown Lands referral.
At Henley values a granny flat is a quality studio or family accommodation, not a rental box. I map the heritage, rock and foreshore before I quote so it's all in the fixed price.
Granny flat builder in Henley — key facts
- Suburb
- Henley, NSW 2111
- Council / LGA
- Hunters Hill Council (Hunters Hill Council)
- Primary zoning
- R2 Low Density
- Typical lot size
- 500–1,200m²
- Soil class
- Hawkesbury Sandstone bedrock
- Median house price
- $3.5M–$6.5M typical heritage; $5.0M–$15M+ harbour-front Woolwich/Hunters Hill peninsula
- Home era
- 1880s–1940s Federation/Victorian/inter-war heritage predominant
- 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.
Quality Promise
Henley granny flat construction done to a schedule. CDC lodged, slab poured, handover complete — on one fixed-price contract.
How It Works
From First Call to Final Key
Assessment is the most important hour you'll spend on the project. Get the position, orientation, and access right and the build runs clean.
⏱We design your granny flat to maximise the 60m² allowance within Hunters Hill Council's setback and POS requirements. Floor plan, elevations, and 3D render provided.
⏱CDC pathway exists specifically for compliant granny flats — use it. No neighbour notification, no Hunters Hill Council planner queue, no committee politics.
⏱Fixed-price build: slab (Class Hawkesbury Sandstone bedrock engineered), frame, roof, fit-out, connections. 10–16 weeks depending on size.
⏱Walk through your finished granny flat, collect keys. Occupation Certificate, 6-year structural warranty, and maintenance guide provided.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
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
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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Last updated: 1 July 2025
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