15a Clanalpine St, Mosman is a 5 bedroom, 4 bathroom House and was built in 2016. The property has a land size of 817m2 and floor size of 144m2. While the property is not currently for sale or for rent, it was last sold in February 2024.
Auction Location: On siteA Susan Rothwell-designed estate created to capture a breathtaking panorama across Sirius Cove to the city skyline, this luxurious Mosman residence unfolds across three beautifully connected levels, offering an exceptional sense of space, privacy and flexibility. Designed to present modestly to the street and open dramatically to the view, Rothwell carefully conceived this home from the land up, working with the natural fall of the setting, embracing the harbour outlook without surrendering privacy. Far from a contemporary outcome that simply chases views without understanding site, the residence does something altogether more considered, responding thoughtfully to the local context, while maintaining an unmistakable identity of its own. With its overall materiality grounded in Sydney's sandstone, it caters to both refined entertaining and dynamic family living, combining multiple living zones, resort-style outdoor spaces and a highly versatile layout, framed by high hedges and private indoor/outdoor settings. A home of prestige, seclusion and rare intergenerational appeal within one of Mosman's most prestigious harbourside enclaves.* Harbour-side home with panoramic views* Deigned by architect Susan Rothwell* Concrete & double brick construction* Outlooks across Sirius Cove to the city* 3 expansive levels of in/outdoor spaces* Separate formal, casual and family zones* Seamless flow to all-weather terraces* Gas-heated swimming pool and gardens* Private courtyards and landscaped surrounds* Green setting, high hedges, absolute privacy* Up to five bedrooms with flexible design* Grand master retreat with luxurious ensuite* Stone kitchen and high-end bathrooms* Gas fireplace, heated floors, ducted air* C-Bus automation and solar power* Double garage with internal access/storage* Off-street parking for additional 2 vehicles* Prestigious Mosman lifestyle close to harbour
The size of Mosman is approximately 8.7 square kilometres. There are 45 parks, covering nearly 29.6% of the 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 16,026 properties. Over the last 5 years, Houses in Mosman have seen a 13.80% increase in median value, while Units have seen a 22.36% increase. As at 30 April 2026:
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