Granny Flat Builder Sans Souci — Approval in 10 Days, Finished in 14 Weeks
Sans Souci 2219 secondary dwellings via the NSW Affordable Rental Housing SEPP. CDC fast-track (10–15 days), construction in 14–20 weeks. Free site check.
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A granny flat in Sans Souci 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, Bayside Council approval and fixed-price construction.
Granny Flats Designed for Sans Souci Blocks
Sans Souci is the peninsula between the Georges River and Botany Bay, so a lot of these blocks have water on the brain — waterfront or water-glimpse, with the premium and the controls that come with it. The lots run 500 to 900m², which is plenty of room for a well-placed secondary dwelling.
The ground shifts across the peninsula — Botany Sands in places, Wianamatta Shale in others — so I don't assume the footing, I test for it and design to suit. That's a geotech step before any number gets locked.
On the waterfront blocks the Foreshore Building Line and the coastal controls shape where a second dwelling can go, and salt air pushes the materials up a grade. Off the water it's a more standard build on a generous block.
Fixed price with the foreshore and soil checks done first. Licence HBL 487805C.
Buildana manages the full granny flat process in Sans Souci — 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 Sans Souci from $150K
- CDC fast-track approval (10–15 business days)
- 500–900m² blocks — most qualify for 60m² granny flat
- Sans Souci zoned R2 Low / R3 Medium (station precincts) / R4 (Wolli Creek, Mascot, Rockdale, Kogarah, Arncliffe high-rise)
- Fixed-price contract — design to handover
- M — engineered slab included
- Rental yield $480–$720/week (post-war stock supports siting) in Sans Souci
- Free site assessment — near Bus to Kogarah (T4, 5 km) station
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Waterfront blocks come with rules
If your block fronts the Georges River or Botany Bay, the Foreshore Building Line sets how close to the water anything can go, and there may be a Crown Lands referral in the mix. That constrains where the second dwelling lands — it doesn't rule it out, it just has to be planned around from the start.
Salt air on the waterfront means corrosion-rated fixings and a salt-tolerant façade. I'd rather build it once in the right materials than watch cheap fixings rust out within a few years this close to the water.
Soil that changes across the peninsula
Sans Souci sits over a mix of sand and shale, so the footing isn't a one-size answer — it's designed off a geotech for the ground your block actually has. That's what keeps the fixed price from moving once we start.
On a 500 to 900m² block there's room to place the flat well. As a rental or family space on a peninsula like this it holds its value; I just won't put a weekly figure in writing I can't stand behind.
Granny flat builder in Sans Souci — key facts
- Suburb
- Sans Souci, NSW 2219
- Council / LGA
- Bayside Council (Bayside)
- Primary zoning
- R2 Low
- Typical lot size
- 500–900m²
- Soil class
- M
- Median house price
- $2.0M–$4.0M (waterfront $3M–$6M+)
- Home era
- 1930s–1970s
- 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
Free on-site assessment of your Sans Souci property. We measure setbacks, check existing services, assess access, and confirm your 500–900m² block meets Bayside Council's requirements for a secondary dwelling.
⏱60m² sounds tight on paper but designs well — high ceilings, good cross-ventilation, smart storage, and proper bedroom proportions make a 2-bed feel generous. We design for daily liveability, not just floor plan compliance.
⏱CDC fast-track through a private certifier — typically approved in 10–15 business days. Sans Souci is zoned R2 Low.
⏱Your granny flat is built from slab to keys in a single programme. Engineered slab for Class M soil, frame, lock-up, fit-out, painting, flooring, and external works.
⏱Defect-free inspection means we don't hand over a list to chase — every snag is fixed before keys move. Final clean, electrical and plumbing tested, smoke alarms certified, BASIX commissioning verified.
⏱Quality Promise
Sans Souci granny flat construction done to a schedule. CDC lodged, slab poured, handover complete — on one fixed-price contract.
Cost Guide
| Item | Estimated Range |
|---|---|
| Rental income model (Sans Souci 1-bed) | $190,000 – $240,000 |
| Family member (dependent living) | $210,000 – $270,000 |
| Teenager retreat / adult child | $180,000 – $230,000 |
| Home office / short-stay | $170,000 – $220,000 |
| Future main dwelling (build granny first, big house later) | $220,000 – $280,000 |
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
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Last updated: 1 July 2025
Sans Souci Granny Flat — Free Site Check
Free site assessment for Sans Souci 2219. We'll check your block, recommend the best design, and provide a fixed-price quote.
Start Your ProjectMore in Sans Souci
Other Buildana services in Sans Souci
Costs, approval pathway and fixed-price contract detail for every other build type we deliver in Sans Souci 2219. Bayside Council regulations and local controls are covered on each page.