RateMyAgentGo to search
Back 201/37 Heydon Street
Off Market

201/37 Heydon Street

Mosman NSW 2088

3
2
2
Apartment
Peter KakosPeter Kakos, last sold this property on 18 September 2025 after 20 days on market.

Overview

A Luxury Masterpiece by HELM

Crowning the boutique Sonnet development in Mosman, this top-floor residence defines refined luxury and timeless sophistication. Crafted by HELM the multi award-winning developer with more than 29 National, State and Regional accolades the apartment showcases the meticulous craftsmanship, thoughtful detail and liveability for which HELM is renowned. With just nine residences in the collection, Sonnet offers the exclusivity of boutique living paired with grand design and unrivalled privacy. Peacefully positioned on the top floor, the residence is accessed via a hotel-inspired foyer with secure lift entry direct from the double lockup garage. Light-filled interiors unfold across expansive proportions, featuring wide American oak floors, high ceilings and full-height glazing that frames leafy outlooks across Mosman and Middle Harbour. A deep, north-east entertainer's terrace complete with stone feature wall, gas bayonet, water and power creates a seamless extension of the living space for year-round enjoyment. The gourmet kitchen is a centrepiece of style and function, finished in Italian marble and bespoke oak joinery. Premium Miele appliances, a Vintec wine fridge and an integrated Fisher & Paykel French-door refrigerator elevate everyday living. Three spacious bedrooms include a serene master retreat with a walk-in robe and a hotel-style ensuite featuring a freestanding Kaldewei bath. Every detail has been considered, from custom joinery and motorised blinds to underfloor heating in the ensuite, plush wool carpets and ducted air-conditioning. The secure double lockup garage with side-by-side parking incorporating storage, visitor car space and video intercom further enhances convenience. Tucked away in Heydon Street, a peaceful cul-de-sac with no through traffic, the home offers a perfect balance of tranquility and accessibility just 350m to Bridgepoint Shopping Centre, moments to Spit Junction, the B-Line bus, and a short stroll to Balmoral Beach. Why you'll love it: Exclusive top-floor residence within a boutique building of nine, completed in 2023 Light-filled, whisper-quiet interiors with expansive proportions and seamless flow Bespoke oak joinery, Italian marble finishes, wide American oak floors and wool carpets Gourmet kitchen with Miele appliances, Vintec wine fridge and integrated refrigerator Full-height commercial glazing with effortless indoor/outdoor connection Deep entertainer's terrace with BBQ gas bayonet, water and power Underfloor heating in ensuite bathroom, heated towel rails, brushed nickel tapware Secure double side-by-side lockup garage incorporating storage, visitor parking and car wash bay Peaceful cul-de-sac setting, 350m to Bridgepoint, 1km to Balmoral Beach

Features

3 bedrooms
2 bathrooms
2 carspaces
Apartment

Estimated Value

Based on this property and similar 3 bedroom apartments sold in Mosman over the last 12 months, the estimated median property value of 201/37 Heydon Street is $2.65m.

Median value
$2.65m
Estimated value range
$1.2m - $7.85m
Median days on market
31
Estimated value trend
-15%
decrease over the last 12 months
Average days on market is based on recent, comparable sales in Mosman. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 201/37 Heydon Street

2025
Sold
Undisclosed
Sold Before Auction on 18 Sep 2025 by Peter Kakos, of Atlas | Sydney, Byron Bay, South Coast & Southern Highlands

Happy sellers in Mosman

77%
77% of sellers in Mosman reported that their sale price either exceeded or met their price expectations.

Mosman stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 147 reviews in Mosman over the last 12 months.

Local market activity for 3 bedroom apartments in Mosman

In the last 12 months, 56 three-bedroom apartments similar to 201/37 Heydon Street, have been sold.

This represents a 15% increase in three-bedroom apartments sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Mosman

placeholder
David Murphy

Sellers who recommend David Murphy have praised them for being clear communication, local expert, honest, supportive, responsive, reliable and trustworthy

  •   4.9   (966 reviews)
  •  65 Reviews in Mosman
  •  53 Sales in Mosman
View profile
placeholder
Kirsty Freyer

Kirsty Freyer is a recommended agent for Mosman.  They have 14 local sales and collected 16 local reviews across the last 12 months.

  •   4.9   (125 reviews)
  •  16 Reviews in Mosman
  •  14 Sales in Mosman
View profile
placeholder
Andrew Bowden

Sellers who recommend Andrew Bowden have praised them for being clear communication, local expert, responsive, reliable, supportive, honest and friendly

  •   5   (143 reviews)
  •  19 Reviews in Mosman
  •  11 Sales in Mosman
View profile
placeholder
Megan Thomas

Sellers who recommend Megan Thomas have praised them for being local expert, clear communication, trustworthy, supportive, reliable, responsive and hard-working

  •   5   (69 reviews)
  •  10 Reviews in Mosman
  •  10 Sales in Mosman
View profile
or
Skip the list and find your ideal agent to sell your propertyFind My Agent
RateMyAgent
Quick Links
© 2026 RateMyAgent
Privacy PolicyTerms & ConditionsSitemap