21A Holt Avenue, Mosman, NSW 2088 | Property Value & History | OnTheHouse
 
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21A Holt Avenue
Mosman NSW 2088

Bedrooms: 4
Bathrooms: 2
Car spaces: 1
Floor area: 245m2
Land area: 462m2
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Last updated 5 Jan 2026
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Property Details for 21a Holt Ave, Mosman

21a Holt Ave, Mosman is a 4 bedroom, 2 bathroom House with 1 parking spaces and was built in 1920. The property has a land size of 462m2 and floor size of 245m2. While the property is not currently for sale or for rent, it was last sold in June 2021.

Building Type
House
Year Built
1920
Floor Size
245m2
Land Size
462m2
Local Government
Mosman
Lot/Plan
71/2/DP3909

Last Listing description (June 2021)

Carefully curated to create the perfect environment for a family to live and grow freely, this destination home captures the essence of contemporary appeal. With high-end inclusions and beautiful open interiors that spill out to a private entertainers' paradise which includes a heated pool and a stunning brass outdoor shower. Offering clever flexibility across two generous levels, we love the spacious parents retreat on the upper level with a walk-in wardrobe, ensuite, lounge space and home office with a custom desk for two workstations which opens onto a foliage-framed balcony with views to the Harbour Bridge and city skyline. Enjoy village cafs, waterfront parks, buses and ferry transport all just a stroll away as well as easy access to the CBD.

Choose between an expansive social centre and peaceful formal lounge room
Bi-fold doors open to grand deck and north facing garden oasis set poolside

Chefs' kitchen has Carrara marble finishes, butlers' pantry, zip tap and Miele gas appliances
Four oversized bedrooms as well as option to use the second lounge as a fifth bedroom, stylish bathrooms, alfresco brass shower
Sandstone fireplace, climate control, home office options and lock-up garage
Within catchment for Mosman Public School and close to esteemed high schools

This property is scheduled to go to Auction onsite. Registered bidders will be given priority to attend the auction before spectators due to social distancing requirements. If you intend on registering, please contact the agent to discuss proceedings.

This property is available for viewing by either attending the scheduled open homes or by private viewing should this be your preference. All necessary measures have been put in place to adhere to the recent Government regulation and to protect the health and safety of all parties. For more information please contact the listing agent.

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Property History for 21a Holt Ave, Mosman, NSW 2088

A timeline of how this property has performed in the market
Last Sold
$6,100,000
25 Jun 2021
  • 25 Jun 2021
    Sold for $6,100,000
  • 09 Jun 2021
    Listed for Sale Price Guide On Request
  • 07 Jul 2010
    Sold for $2,500,000
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About Mosman 2088

The size of Mosman is approximately 8.7 square kilometres. It has 45 parks covering nearly 29.6% of total area. The population of Mosman in 2016 was 28475 people. By 2021 the population was 28329 showing a population decline of 0.5% in the area during that time. The predominant age group in Mosman is 50-59 years. Households in Mosman are primarily couples with children and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Mosman work in a professional occupation.In 2021, 64.10% of the homes in Mosman were owner-occupied compared with 62.80% in 2016.

Mosman has 16,010 properties. Over the last 5 years, Houses in Mosman have seen a 30.04% increase in median value, while Units have seen a 37.05% increase. As at 31 December 2025:

  • The median value for Houses in Mosman is $5,876,830 while the median value for Units is $1,510,797.
  • Houses have a median rent of $1,800 while Units have a median rent of $800.
There are currently 38 properties listed for sale, and 42 properties listed for rent in Mosman on OnTheHouse. According to Cotality's data, 643 properties were sold in the past 12 months in Mosman.

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Cotality Copyright and Legal Disclaimers about Property Data

© Copyright 2026. RP Data Pty Ltd trading as Cotality (Cotality). All rights reserved. No reproduction, distribution, or transmission of the copyrighted materials is permitted. The information is deemed reliable but not guaranteed.

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.

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