AT A GLANCE
6
total lots in this scheme
Managed by First Strata Pty Ltd. Located in Double Bay, NSW. 191 other strata plans nearby
Lots
6
Year built
1995
Last report
—
Boundary sourced from NSW Spatial Services (StrataHub).
About this building
21 William Street is a 6-lot residential strata scheme in Double Bay, registered in 1995 and now about 31 years old. It is managed by First Strata Pty Ltd and is one of 192 strata plans in Double Bay (Woollahra council area). Every unit at 21 William Street (lots 1–6) is part of strata scheme SP50313, so the levies, by-laws and disputes below apply to all of them. We found no NCAT tribunal decisions naming SP50313.
Buyer's snapshot
Everything a buyer should know about 21 William Street, on one page
- A red/amber/green verdict on each risk, with the evidence
- Plain-English summaries of every tribunal and court case
- Questions to ask the agent and strata manager
- A PDF you can forward to your conveyancer
Plan Details
- Plan Number
- SP50313
- Registered
- 1995-07-11
- LGA
- WOOLLAHRA
- Postcode
- 2028
Lot Breakdown
- Total Lots
- 6
- Residential
- 6
Building Age
31
years old
Registered 11 July 1995
Significant capital expenditure expected — plumbing, electrical, facade repairs. Special levies are common for buildings this age
Strata Manager
Licence: 10028875
Last AGM: 14 December 2025
10 months ago
Annual Reporting
3 Feb 2026
Status
active
Disputes in Double Bay
No published decision names this building. Across Double Bay, 8 decisions name a strata plan — spread over 5 buildings.
- NCAT (tribunal)
- 1
- Court
- 6
- Buildings involved
- 5 of 192
NCAT cases are usually internal to a scheme — by-laws, levies, repairs, access to records. Court cases usually involve builders or insurers over defects, because those claims exceed the tribunal's jurisdiction. A per-1,000-lot rate isn't shown: Double Bay has 2,261 lots, small enough that a single litigious building would move it several-fold. These are published decisions only — most strata disputes settle or are resolved without a judgment, so this is a floor, not a count. See the Double Bay suburb profile.
Comparable Buildings in Double Bay
Other strata plans in the same suburb, ordered by similarity in building size.
| Building | Lots |
|---|---|
| 13 Manning Road SP46923 Managed by Realise Consulting Pty Ltd | 6 |
| 31 Manning Road SP67966 Managed by Strata Logic Pty Ltd | 6 |
| 16-18 Cooper Street SP9417 | 6 |
| 523 New South Head Road SP37779 Managed by Conti & Co Pty Ltd | 6 |
| 442-446 New South Head Road SP65405 Managed by Bright & Duggan Pty Ltd | 6 |
| 26A William Street SP3083 Managed by PICA Services Pty Ltd | 6 |
Comparables are other strata plans in Double Bay with similar lot counts.
Other strata buildings on William Street
- 41 William Street
SP3617 · 61 lots
- 51 William Street
SP64429 · 50 lots
- 20 William Street
SP2866 · 14 lots
- 10 William Street
SP79134 · 13 lots
- 28 William Street
SP3698 · 12 lots
- 30 William Street
SP20729 · 12 lots
- 32 William Street
SP35924 · 12 lots
- 31-33 William Street
SP10261 · 10 lots
More buildings managed by First Strata Pty Ltd
- 222 Wyndham Street, Alexandria
SP82782 · 92 lots
- 306-312 Bronte Road, Waverley
SP63189 · 23 lots
- 344 Edgecliff Road, Woollahra
SP4311 · 18 lots
- 107 High Street, Mascot
SP38801 · 18 lots
- 175 Bellevue Road, Bellevue Hill
SP375 · 10 lots
- 157 Mount Street, Coogee
SP80026 · 6 lots
Risk & History
Sales History
Recent Sales
| Date | Unit | Price |
|---|---|---|
| 20 Sept 2022 | Lot 3 133 m² | $3,000,000 |
| 12 Sept 2017 | Lot 1 | $2,466,000 |
| 29 July 2017 | Lot 5 | $2,375,000 |
| 1 Sept 2015 | Lot 1 | $1,980,000 |
| 4 July 2013 | Lot 6 | $1,335,000 |
| 3 Nov 2005 | Lot 4 | $970,000 |
| 11 Mar 2004 | Lot 5 | $1,275,000 |
| 16 Nov 2001 | Lot 1 | $1,020,000 |
Source: NSW Valuer General. Prices are as reported in settlement data and may not reflect current market values. Sales marked “Price withheld” are excluded from price calculations.
Development History
Original Construction · 2 storeys · 1 dwelling
Assessed by Woollahra Municipal Council
Development Application
Additional Information RequestedNearbyDwelling house, Alterations or additions to an existing building or structure
PAN-653985
Development Application
DeterminedNearbyShop top housing, Office Premise, Alterations or additions to an existing building or structure, Change of use of land or a building or the classification of a building under the Building Code of Australia
PAN-540563
Development Application
WithdrawnNearbyDemolition, Shop top housing, Entertainment facility, Hotel or motel accommodation, Erection of a new structure, Recreation facility (indoor), Retail Premise
PAN-486436
Looking for the builder or developer?
Search for the application number (e.g., PAN-653985) on the NSW Planning Portal Application Tracker to view the full DA details, including the applicant, builder, and principal certifier.
Source: NSW Planning Portal Open Data API (2019+). Earlier development applications may not be available. Items marked "Nearby" were matched by location proximity (within 100m) rather than direct plan number reference.
Crime Statistics
These statistics cover the entire Woollahra local government area, not this specific property.
Crime rates in Woollahra LGA are lower than the NSW state average. (Oct 2024 - Sep 2025)
Source: NSW Bureau of Crime Statistics and Research (BOCSAR). Rates are per 100,000 population. Rank is out of 119 LGAs (1 = highest rate).
Neighbourhood
Suburb Profile
DOUBLE BAY, NSW 2028
Transport Accessibility
Transport Score: A
Excellent public transport access
Nearest Train
Edgecliff
750m away · ~9 min walk
Nearest Ferry
Double Bay
177m away · ~2 min walk
Bus Stops
10 within 500m · 56 within 1km
Source: Transport for NSW GTFS data (CC BY 3.0 AU). Distances are straight-line (not walking). Walking times assume 80m/min. Transport Score is indicative only.
Short-Term Rentals Nearby
6
Listings within 200m
$329
Median / Night
2
Commercial Hosts
6
High Availability
Listing Types
Nearest Listings
Stunning 1 bed plus study in Double Bay
$302
/night
Picturesque Two Bedroom Apt with Study
$429
/night
Picturesque Two Bedroom Apartment
$403
/night
Picturesque One Bedroom Apartment with Study
$293
/night
Bright Home Steps from Double Bay Beach
$356
/night
NSW Short-Term Rental Rules
- •180-day cap for non-hosted short-term rentals in Greater Sydney (60 days in some fire-prone or Byron Shire areas)
- •Strata schemes can ban non-hosted STRA via a Section 137A by-law (requires 75% special resolution)
- •All STR properties must be registered on the NSW STRA Register
Source: Inside Airbnb (CC BY 4.0). Data is from a periodic scrape of Airbnb listings and may not be current. "Commercial hosts" are those with 3+ total listings. "High availability" = listed 180+ days/year.
School Catchment Zones
This property falls within the following NSW government school intake areas.
Primary
Double Bay PS
primary
Secondary
Rose Bay SC
high coed
Source: NSW Department of Education. Catchment zones are updated nightly and subject to change. Visit School Finder for official information.
BUILDING BASICS
- Lots
- 6
- Residential
- 6
- Year built
- 1995
- LGA
- WOOLLAHRA