4/20 William Street, Double Bay, NSW 2028 | Property Value & History | OnTheHouse
OFF MARKET

4/20 William Street
Double Bay NSW 2028

Bedrooms: 2
Bathrooms: 1
Car spaces: -
Floor area: 68m2
Land area: 660m2
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Property Details for 4/20 William St, Double Bay

4/20 William St, Double Bay is a 2 bedroom, 1 bathroom Unit and was built in 1920. The property has a land size of 660m2 and floor size of 68m2. While the property is not currently for sale or for rent, it was last sold in August 2010.

Building Type
Unit
Year Built
1920
Floor Size
68m2
Land Size
660m2
Local Government
Woollahra
Lot/Plan
4/SP2866

Last Listing description (September 2019)

Peacefully positioned only a moment to the waterfront and stunning harbourside parks, this stylish Art Deco apartment offers refurbished, light-filled interiors for modern village living. Boasting generous proportions and neat finishes through-out, this offering is perfect for the corporate single, couple or down sizer looking for their next 'lock up & go' property that caters to a busy inner city lifestyle.
A magical locale central to Double Bay Shopping Village
Spacious living area with tranquil northerly outlook

Modern gas kitchen with stainless steel finished & dishwasher
Master bedroom with large wall of built-in wardrobes
Clever bathroom with unique recessed shower & laundry
High ceilings and polished timber floors throughout
Level street access with intercom security entrance
Set to the rear of the boutique 'Lansdowne' complex
Ideal north east aspect, security grilles on all windows
Easy stroll to Redleaf pool, caf s and eateries

Property History for 4/20 William St, Double Bay, NSW 2028

A timeline of how this property has performed in the market
Last Sold
$630,000
11 Aug 2010
Listed for Rent
$690/w
03 Sep 2019
  • 06 Aug 2019
    Listed for Rent - Price not available
  • 25 Dec 2014
    Listed for Rent $600 / week
  • 04 Apr 2012
    Listed for Rent - Price not available
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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 5 properties listed for sale, and 5 properties listed for rent in Double bay on OnTheHouse. According to Cotality's data, 143 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.