20 WILLIAM STREET DOUBLE BAY
AT A GLANCE
14
total lots in this scheme
Managed by Whelan Property Group Pty Ltd. Located in Double Bay, NSW. 191 other strata plans nearby
Lots
14
Year built
1967
Last report
—
Boundary sourced from NSW Spatial Services (StrataHub).
Sales History
Recent Sales
| Date | Unit | Price |
|---|---|---|
| 30 Aug 2024 | Lot 6 68 m² | $1,325,000 |
| 4 Feb 2020 | Lot 10 68 m² | $985,000 |
| 25 Jan 2017 | Lot 3 | $850,000 |
| 19 Mar 2014 | Lot 13 | $150,000 |
| 3 Aug 2013 | Lot 1 | $710,000 |
| 1 Dec 2012 | Lot 6 | $655,000 |
| 11 Aug 2010 | Lot 4 | $630,000 |
| 15 May 2006 | Lot 1 | $480,000 |
| 16 Sept 2005 | Lot 9 | $525,000 |
| 12 Mar 2005 | Lot 4 | $465,000 |
14 sales total
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 · 4 storeys · 1 dwelling
Estimated cost: $1.6M · Assessed by Woollahra Municipal Council
Development Application
DeterminedNearbyPools / decks / fencing, Demolition, Residential flat building, Alterations and additions to residential development, Flood mitigation work, Earthworks / change in levels, Retaining walls, protection of trees, Garages, carports and car parking spaces
PAN-344486
Development Application
RejectedNearbySemi-attached dwelling, Pools / decks / fencing, Balconies, decks, patios, terraces or verandahs, Demolition, Alterations and additions to residential development
PAN-308208
Review of determination
DeterminedNearbyAlterations and additions to residential development
PAN-293714
Looking for the builder or developer?
Search for the application number (e.g., PAN-344486) 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).
BUILDING BASICS
- Lots
- 14
- Residential
- 14
- Year built
- 1967
- LGA
- WOOLLAHRA