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 in Hunters Hill Council has excellent granny flat potential with typical lots of 500–1,200m² — most qualifying under NSW Housing SEPP for fast-tracked CDC approval. 1880s–1940s Federation/Victorian/inter-war heritage predominant (Heritage Conservation Areas cover virtually entire LGA) + premium contemporary infill-era homes on established blocks make ideal candidates for a granny flat addition, with rental returns in Henley reaching $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting). Hunters Hill Council manages development in the area, and Buildana has deep experience with granny flat builds across Hunters Hill Council.
Most Henley blocks run 500–1,200m² on Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage ground. A granny flat under the Housing SEPP needs the lot above 450m², some clear backyard, and not much else by way of council process — CDC certifier sign-off in 10–15 business days, no DA through Hunters Hill Council required. Median price band: $3.5M–$6.5M typical heritage; $5.0M–$15M+ harbour-front Woolwich/Hunters Hill peninsula. Nearest rail is Wollstonecraft (5 km).
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
- Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage soil — 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
Why Build a Granny Flat in Henley?
Henley is the small Parramatta River foreshore suburb of Hunters Hill — Federation/inter-war heritage on 500–1,200m² blocks with substantial fall to the river. Heritage Conservation Areas cover most streets. Sandstone-dominant with deep rock excavation typical.
Henley's mix of 1880s–1940s Federation/Victorian/inter-war heritage predominant (Heritage Conservation Areas cover virtually entire LGA) + premium contemporary infill-era housing on 500–1,200m² blocks creates strong opportunity for property improvement. Median prices of $3.5M–$6.5M typical heritage; $5.0M–$15M+ harbour-front Woolwich/Hunters Hill peninsula support quality build investment. Transport access via Wollstonecraft (5 km) connects Henley to the wider Sydney network. Secondary dwellings on 500–1,200m² blocks deliver rental returns of $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting) per week. CDC approval through a private certifier typically takes 10–15 business days. Soil conditions in Henley (Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage, moderately to highly reactive) are factored into every Buildana foundation design.
Granny flat builder in Henley — key facts
- Suburb
- Henley, NSW 2111
- Council / LGA
- Hunters Hill Council (Hunters Hill Council)
- Primary zoning
- R2 Low Density (heritage predominant) / R3 Medium Density limited to Gladesville town centre
- Typical lot size
- 500–1,200m²
- Soil class
- Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage
- 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 (Heritage Conservation Areas cover virtually entire LGA) + premium contemporary infill
- 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)
Building in Henley — Local Context
Henley Block Realities
Typical Henley blocks are 500–1,200m² on Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage ground (moderately to highly reactive clay). For a secondary dwelling, the structural envelope is more constrained than the headline lot size suggests — once you subtract setbacks, easements, landscaped area requirements, and any tree preservation, the actual buildable area is usually 35-45% of the block. We map that early in the feasibility stage so you're designing to what's actually allowed, not what looks possible from the title plan. Foundation cost band on most Henley blocks: $24,000–$42,000.
Hunters Hill Council Planning Context
Hunters Hill Council has its own LEP and DCP layered over State planning controls. For building a granny flat in Henley, the practical impact: Hunters Hill Council's DCP sets local rules for streetscape character, materials palette in some precincts, vehicle crossover widths, and tree retention. R2 Low Density (heritage predominant) / R3 Medium Density limited to Gladesville town centre zoning on most Henley blocks permits secondary dwellings up to 60m² under the Housing SEPP without DA. Buildana checks every overlay (heritage, bushfire, flood, acid sulfate soil, biodiversity) before quoting.
Realistic Budget for Henley
For a granny flat in Henley, the budget conversation starts with what you actually want versus what the site supports. Most quotes you'll get from volume builders strip out the things that matter on Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage soil — engineered slab upgrade, decent waterproofing, real drainage design, BASIX-compliant glazing — and present them as variations after you sign. We don't do that. Buildana's contract is fixed-price including everything required to deliver a secondary dwelling that complies with NCC 2025 on a 500–1,200m² block in Henley.
What Makes a Secondary dwelling Work in Henley
Henley (2111) is part of Hunters Hill Council. Wollstonecraft (5 km) from the nearest station. Building well here means understanding what the suburb actually rewards — and what it punishes. Reward: thoughtful orientation, family-scale outdoor entertaining, durable materials that look right against the 1880s–1940s Federation/Victorian/inter-war heritage predominant (Heritage Conservation Areas cover virtually entire LGA) + premium contemporary infill streetscape, and floor plans that handle multi-generational living without feeling cramped. Punish: over-glazing on west elevations (summer heat is brutal), thin slab specs on Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage ground, generic project-home elevations that ignore the street rhythm. Buildana has built across Hunters Hill Council long enough to know where the line sits.
Building Activity in Henley Right Now
Henley is seeing steady residential activity — secondary dwelling CDCs are being lodged at record rates as homeowners pursue rental income against rising mortgage costs. Buildana sits inside that pipeline — we know what's getting approved, what's stalling, and why.
Builder's Take on Henley
Rental yield on a Henley granny flat typically sits around 8–11% gross — often stronger than the main dwelling in percentage terms. The $200K–$260K build returns $18K–$28K per year in gross rent. Even after expenses, it clears comfortably.
Detached vs attached in Henley: if your block is deeper than 30m, detached almost always wins. Separate entry, independent outdoor space, cleaner rental listing. Attached only makes sense when the block is too narrow to get a detached past the 900mm setback.
Henley vs Nearby Suburbs
Henley vs nearby suburbs — key metrics for building a granny flat.
| Suburb | Median Price | Typical Lot | Soil Class | GF Rental | Station |
|---|---|---|---|---|---|
| Henley2111this suburb | $3.5M–$6.5M typical heritage; $5.0M–$15M+ harbour-front Woolwich/Hunters Hill peninsula | 500–1,200m² | Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage | $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting) | Wollstonecraft (5 km) |
| Hunters Hill2110 | $3.5M–$6.5M typical heritage; $5.0M–$15M+ harbour-front Woolwich/Hunters Hill peninsula | 500–1,200m² (premium Federation/Victorian/inter-war heritage predominant); 800–2,000m²+ harbour-front (Woolwich/Hunters Hill peninsula tip) | Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage | $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting) | Wollstonecraft (5 km, ferry from Valentia Street wharf) |
| Woolwich2110 | $5M–$15M+ (harbour-front) | 700–2,000m² | Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage | $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting) | Wollstonecraft (6 km, ferry from Woolwich wharf) |
| Boronia Park2111 | $3.5M–$6.5M typical heritage; $5.0M–$15M+ harbour-front Woolwich/Hunters Hill peninsula | 500–1,200m² (premium Federation/Victorian/inter-war heritage predominant); 800–2,000m²+ harbour-front (Woolwich/Hunters Hill peninsula tip) | Class Hawkesbury Sandstone bedrock predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage | $580–$820/week (limited — heritage controls + foreshore restrictions tighten siting) | Wollstonecraft (5 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.
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
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 predominant (saw-cutting, rock-anchoring $40K–$140K above standard substructure on harbour-fall lots) / Class M Wianamatta Shale on ridge / Foreshore Building Line + Crown Lands referral universal on Lane Cove River and Parramatta River frontage 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
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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
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Last updated: 1 July 2025
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