3a Collins Ave, Rose Bay is a 4 bedroom, 4 bathroom Unit with 2 parking spaces and was built in 2007. The property has a land size of 445m2 and floor size of 300m2. While the property is not currently for sale or for rent, it was last sold in July 2018.
Step directly onto the sands of Rose Bay Beach from this luxury modernist home, one of a handful of residences in an exclusive cul-de-sac enjoying a world-class beachfront setting on Sydney Harbour. Hidden from the street by a secure gated entrance, the striking copper-roofed duplex captures magnificent 180 views across the harbour to North Sydney CBD skyline and Harbour Bridge.
Superbly designed for easy indoor-outdoor living and entertaining, the substantial 4-bedroom 4-bathoom residence features minimalist lines and streamlined spaces with an internal lift, ducted reverse-cycle air-conditioning and direct access from a secure remote-controlled double garage. Featuring large expanses of glass opening seamlessly to maximise the views, it spans three spacious levels plus a large basement area.
Delivering the ultimate harbour lifestyle in an idyllic location with village shops and cafes footsteps from the door, the property also features a kayak storage area, hot & cold outdoor shower and a private gate opening onto the dog-friendly beach.
- Private gate opening onto the beach & Rose Bay harbour foreshore
- Level access from secure landscaped forecourt and 2-car garage
- Spacious living & dining areas flowing to covered alfresco terrace
- Gourmet gas kitchen with Gaggenau appliances & walk in pantry
- Huge main bedroom with b/ins, marble ensuite, study area & terrace
- 3 more double bedrooms, each with generous b/ins, one with ensuite
- 4 marble bathrooms (2 ensuite, each with rainshower, 2 with bath)
- Study/home office, large laundry with storage cupboards, storeroom
- Versatile basement area for teenage retreat, cinema or storeroom
- Ducted r/c air-con, CBus system, electric blinds, surround sound
- High ceilings, marble floors, underfloor heating, security system
- Internal lift to all levels; generous b/in storage; luxury finishes
- Secure remote-controlled double garage with internal access
The size of Rose Bay is approximately 2.5 square kilometres. It has 15 parks covering nearly 35.5% of 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 6,109 properties. Over the last 5 years, Houses in Rose Bay have seen a 49.24% increase in median value, while Units have seen a 32.05% increase. As at 31 January 2026:
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