20 Onslow Street, Rose Bay, NSW 2029 | Property Value & History | OnTheHouse
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20 Onslow Street
Rose Bay NSW 2029

Bedrooms: 4
Bathrooms: 3
Car spaces: 2
Floor area: 217m2
Land area: 305m2
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Last updated 21 Sep 2026
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Property Details for 20 Onslow St, Rose Bay

20 Onslow St, Rose Bay is a 4 bedroom, 3 bathroom House with 2 parking spaces and was built in 1920. The property has a land size of 305m2 and floor size of 217m2. While the property is not currently for sale or for rent, it was last sold in May 2022.

Building Type
House
Year Built
1920
Floor Size
217m2
Land Size
305m2
Local Government
Waverley
Lot/Plan
B/DP403698

Last Listing description (September 2026)

Perfectly positioned in one of Rose Bay's most tightly-held cul-de-sacs, this beautifully appointed residence pairs generous proportions with a sun soaked northerly aspect and an effortless connection to the outdoors.

Designed with both everyday family living and entertaining in mind, it reveals an impressive layout with stylish contemporary interiors complemented by a refined palette of rich timber, marble and travertine that lends a sense of understated elegance, depth and warmth.


A gourmet kitchen forms a stylish centrepiece, appointed with Carrara marble benchtops, premium stainless steel gas appliances and a generous breakfast bar, while adjoining living and dining areas flow seamlessly to a sun drenched north facing rear with an entertainer's deck with integrated barbecue and a private child-friendly backyard with a cabana.

A separate living room provides a relaxed retreat, with custom-built banquette seating creating an inviting space for quiet moments or casual gatherings. Four generous bedrooms offer excellent accommodation, with three positioned on the upper level with built-in wardrobes. The master features a boutique style walk-in wardrobe and ensuite, while the second bedroom opens to a sunny balcony. Adding further flexibility, a fourth bedroom on the lower level is ideally suited to extended family, guests or a home office.

Three beautifully finished bathrooms feature chic travertine surfaces, the main bathroom includes a separate bath and shower, while a third bathroom on the lower level adds further convenience.

Other highlights include extensive custom joinery and cabinetry throughout, with clever understair storage incorporating further pantry storage and a wine rack. An internal laundry enjoys direct access to a side courtyard, while there is ducted air conditioning for year-round comfort, AV intercom access, an alarm and automated gate, while a carport and additional car space, complete the offering.

Promising outstanding lifestyle appeal, the home is positioned within a stroll of Rose Bay Village, with local shops, cafes, Harris Farm and Sonoma Bakery and Bake Bar. Rose Bay Beach and Parisi's Food Hall are also within easy reach, while Bondi Beach, premier schools and Westfield Bondi Junction are just moments away.

- 4 bed | 3 bath | 2 car
- Approx. 300sqm of level land and 7.5m frontage
- Cleverly designed for effortless living and entertaining
- Stunning open plan living/dining with seamless outdoor flow
- Sun soaked deck w/ automated awning & integrated BBQ
- North facing backyard with cabana amid private gardens
- Deluxe Carrara marble kitchen with island breakfast bar
- Premium s-steel gas appliances, integrated Miele dishwasher
- Inviting living area/media room w/ custom banquette seating
- Generous upper-level bedrooms appointed with built-in robes
- Master with boutique-style walk-in wardrobe and ensuite
- Second rear bedroom opens to north facing sunlit balcony
- Three stylishly appointed bathrooms with travertine surfaces
- Ducted air conditioning, rich hardwood timber floorboards
- Family-sized laundry enjoys direct access to side courtyard
- Quality wool carpeted bedrooms, skylit staircase, gas outlet
- Extensive cabinetry/joinery w/ marble & travertine surfaces
- Understair storage and pantry space with custom wine rack
- AV intercom, alarm, automated gate, carport and car space
- Stroll to shops, Harris Farm, Sonoma Bakery & Bake Bar
- Walk to Rose Bay village, Parisi's, buses, Rose Bay Beach
- Minutes to premier schools, Bondi Beach, Westfield's hub

Property History for 20 Onslow St, Rose Bay, NSW 2029

A timeline of how this property has performed in the market
Last Sold
$4,600,000
17 May 2022
  • 08 Sep 2026
    Listed for Sale Auction
  • 17 May 2022
    Sold for $4,600,000
  • 22 Apr 2022
    Listed for Sale Auction
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About Rose Bay 2029

The size of Rose Bay is approximately 2.5 square kilometres. There are 15 parks, covering nearly 35.5% of the total area. The population of Rose Bay in 2016 was 10053 people. By 2021 the population was 9911 showing a population decline of 1.4% in the area during that time. The predominant age group in Rose Bay is 30-39 years. Households in Rose Bay are primarily childless couples and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Rose Bay work in a professional occupation.In 2021, 53.80% of the homes in Rose Bay were owner-occupied compared with 52.80% in 2016.

Rose Bay has 6,116 properties. Over the last 5 years, Houses in Rose Bay have seen a 17.21% increase in median value, while Units have seen a 0.53% increase. As at 31 August 2026:

  • The median value for Houses in Rose Bay is $6,742,247 while the median value for Units is $1,614,451.
  • Houses have a median rent of $2,500 while Units have a median rent of $995.
There are currently 37 properties listed for sale, and 23 properties listed for rent in Rose bay on OnTheHouse. According to Cotality's data, 194 properties were sold in the past 12 months in Rose bay.

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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.