21/41 William Street, Double Bay, NSW 2028 | Property Value & History | OnTheHouse
OFF MARKET

21/41 William Street
Double Bay NSW 2028

Bedrooms: 1
Bathrooms: 1
Car spaces: -
Floor area: 54m2
Land area: 2744m2
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Last updated 15 Dec 2025
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Property Details for 21/41 William St, Double Bay

21/41 William St, Double Bay is a 1 bedroom, 1 bathroom Unit and was built in 1970. The property has a land size of 2744m2 and floor size of 54m2.

Building Type
Unit
Year Built
1970
Floor Size
54m2
Land Size
2744m2
Local Government
Woollahra
Lot/Plan
21/SP3617

Last Listing description (April 2022)

With shops, cafes and the ferry at your doorstep, this double sized one bedroom apartment offers:

- Ample storage
- Modern style kitchen with dishwasher

- Modern bathroom off bedroom
- Internal laundry facilities
- Open plan living and dining area
- Balcony with district views
- Minutes walk to heart of double bay
- Security building with lift access

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Property History for 21/41 William St, Double Bay, NSW 2028

A timeline of how this property has performed in the market
Listed for Rent
$500/w
04 Apr 2022
  • 24 Mar 2022
    Listed for Rent $500 / week
  • 31 Mar 2016
    Listed for Rent - Price not available
  • 17 May 2012
    Listed for Rent $475 / week
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About Double Bay 2028

The size of Double Bay is approximately 0.8 square kilometres. It has 6 parks covering nearly 10.0% of total area. The population of Double Bay in 2016 was 4642 people. By 2021 the population was 4709 showing a population growth of 1.4% in the area during that time. The predominant age group in Double Bay is 30-39 years. Households in Double Bay are primarily childless couples and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Double Bay work in a professional occupation.In 2021, 53.10% of the homes in Double Bay were owner-occupied compared with 54.90% in 2016.

Double Bay has 3,719 properties. Over the last 5 years, Houses in Double Bay have seen a 50.28% increase in median value, while Units have seen a 30.38% increase. As at 30 November 2025:

  • The median value for Houses in Double Bay is $7,374,590 while the median value for Units is $1,831,214.
  • Houses have a median rent of $1,300 while Units have a median rent of $1,100.
There are currently 2 properties listed for sale, and 6 properties listed for rent in Double bay on OnTheHouse. According to Cotality's data, 150 properties were sold in the past 12 months in Double bay.

Suburb Insights for Double Bay 2028

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Cotality Copyright and Legal Disclaimers about Property Data
Disclaimer
The Cotality Data provided in this publication is of a general nature and should not be construed as specific advice or relied upon in lieu of appropriate professional advice.

While Cotality uses commercially reasonable efforts to ensure the Cotality Data is current, Cotality does not warrant the accuracy, currency or completeness of the Cotality Data and to the full extent permitted by law excludes all loss or damage howsoever arising (including through negligence) in connection with the Cotality Data.