10 Bay St, Mosman is a 6 bedroom, 8 bathroom House with 4 parking spaces. The property has a land size of 5488m2. While the property is not currently for sale or for rent, it was last sold in November 2025. There are other 6 bedroom House sold in Mosman in the last 12 months.
This unmissable blue-chip opportunity capitalises on the natural beauty of Middle Harbour and the unique size and limitless potential on offer.Basking in sunsets over Middle Harbour, Lot 1 (1,683sqm), stretches from Bay Street to Quakers Hat Bay with landscaped area suspended over the waterfront. Elevated and sure to capture spellbinding views within a new build, there are conceptual architectural drawings designed by leading architects Corben Architects (STCA) to capitalise on the extraordinary 100 metre depth of the allotment. A designer's dream on a highly sought-after Mosman waterfront. This spectacular setting offers scope for a 5-6 bedroom home with expansive, seamless indoor/outdoor entertaining areas. Complete with a stunning infinity pool and four-car garaging.Part of an exclusive lifestyle focused pocket, there is enviable access to both the Sydney CBD and Northern Beaches from this tranquil enclave. Become captivated by the surrounding harbourside beauty and enjoy a leisurely stroll along the nearby waterfront walking trails leading to more foreshore reserves, an off-leash dog park and The Spit Reserve. Features A deep waterfront landholding spanning 1,683sqm Holding both a frontage on Bay St and the harbour Elevated taking in sparkling Middle Harbour vistas Conceptual architectural drawings by Corben Architects (STCA) Superb site for new build upon the waterfront (STCA) 450m to Spit Road buses, shops and cafes 900m to Chinamans Beach, 1.5km from Balmoral Beach 1.2km to Bridgepoint and Mosman village conveniences Convenient access to regular private school bus stops*All information contained herein is gathered from sources we consider to be reliable. However we cannot guarantee its accuracy and interested persons should rely on their own enquiries. For more information or to arrange an inspection, please contact Geoff Smith on 0418 643 923 and Sabrina Gao on 0433 666 591.
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 16,009 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:
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