SP50313
21 WILLIAM STREET DOUBLE BAY
DOUBLE BAY · 2028 · WOOLLAHRA
6
total lots
Location
Boundary sourced from NSW Spatial Services (StrataHub).
Strata Manager
Licence: 10028875
Last AGM: 14 December 2025
Recent3 months ago
Annual Reporting
3 Feb 2026
Status
Active
Plan Details
- Plan Number
- SP50313
- Registered
- 1995-07-11
- LGA
- WOOLLAHRA
- Postcode
- 2028
Lot Breakdown
- Total Lots
- 6
- Residential
- 6
Building Age
30
years old
Registered 11 July 1995
Significant capital expenditure expected — plumbing, electrical, facade repairs. Special levies are common for buildings this age
Sales History
Recent Sales
| Date | Unit | Price |
|---|---|---|
| 20 Sept 2022 | Lot 3 | $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 · 29 dwellings
Estimated cost: $180.7M · Assessed by Woollahra Municipal Council
Development Application
DeterminedNearbyDemolition, Shop top housing, Entertainment facility, Hotel or motel accommodation, Erection of a new structure, Recreation facility (indoor), Retail Premise
PAN-490111
Development Application
WithdrawnNearbyDemolition, Shop top housing, Entertainment facility, Hotel or motel accommodation, Erection of a new structure, Recreation facility (indoor), Retail Premise
PAN-486436
Development Application
DeterminedNearbyAlterations and additions to residential development
PAN-295395
Looking for the builder or developer?
Search for the application number (e.g., PAN-490111) 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.
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.
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).
Comparable Buildings in DOUBLE BAY
Other strata plans in the same suburb, ordered by similarity in building size.
| Building | Lots |
|---|---|
| 523 NEW SOUTH HEAD ROAD DOUBLE BAY SP37779 Managed by Conti & Co Pty Ltd | 6 |
| 20 GUILFOYLE AVENUE DOUBLE BAY SP12331 | 6 |
| 21 OCEAN AVENUE DOUBLE BAY SP59091 Managed by Jamesons Strata Management Eastern Suburbs Pty Limited | 6 |
| 40-42 CARLOTTA ROAD DOUBLE BAY SP64443 Managed by Stratamark Pty Ltd | 6 |
| 31 MANNING ROAD DOUBLE BAY SP67966 Managed by Strata Logic Pty Ltd | 6 |
| 442-446 NEW SOUTH HEAD ROAD DOUBLE BAY SP65405 Managed by Bright & Duggan Pty Ltd | 6 |
Comparables are other strata plans in DOUBLE BAY with similar lot counts.
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.