3 Mariner St, Williamstown is a 4 bedroom, 2 bathroom House with 1 parking spaces and was built in 1960. The property has a land size of 163m2. While the property is not currently for sale or for rent, it was last sold in December 2025. There are other 4 bedroom House sold in Williamstown in the last 12 months.
An unforgettable waterside family opportunity across two titles awaits those who are after timeless modern flair and breathtaking bay and city views. Literally metres to the azure blue waters, this memorable 4 bedroom, 2 bathroom double storey residence will leave a lasting impression, and is steps to the scenic foreshore, Ferguson St shops, and brilliant schools.
We're going to start outside on the upstairs entertainer's terrace which promises the amazing water and CBD vistas. Nothing will beat sitting out on the terrace in summer and soaking in the waterside vibe with friends and family over dinners and BBQs. This top level further inspires with a light-filled and expansive living retreat, which is fitted with a fireplace, entertainer's wet bar, and the superb views.
Upstairs is also a place to appreciate the enormous master bedroom, which is highlighted by a spa ensuite and large built-in robe storage. Downstairs has the additional 3 bedrooms, as well as the fantastic central living and dining zone plus the kitchen. This cooking space boasts a high breakfast counter and quality appliances.
An enticing and low-maintenance leafy pergola and garden gives you an added alfresco space to experience, while also enjoy a downstairs bathroom, sizeable laundry, heating and cooling, elegant plantation shutters, ceiling fans, single garage, and much more! The property also has side lane right of way (ROW) access.
The size of Williamstown is approximately 5.7 square kilometres. It has 25 parks covering nearly 21.1% of total area. The population of Williamstown in 2016 was 13969 people. By 2021 the population was 14407 showing a population growth of 3.1% in the area during that time. The predominant age group in Williamstown is 50-59 years. Households in Williamstown are primarily couples with children and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Williamstown work in a professional occupation.In 2021, 73.60% of the homes in Williamstown were owner-occupied compared with 71.50% in 2016.
Williamstown has 8,294 properties. Over the last 5 years, Houses in Williamstown have seen a 14.28% increase in median value, while Units have seen a 18.35% increase. As at 30 November 2025:
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