21 Alexander St, Collaroy is a 5 bedroom, 3 bathroom House with 2 parking spaces and was built in 1976. The property has a land size of 466m2. While the property is not currently for sale or for rent, it was last sold in April 2024.
Just up from Collaroy Beach on a prized north rear block, this substantial residence presents a wonderfully flexible beach house for large families. Poised perfectly to capture ocean views and sea breezes, it features living spaces on both floors flowing to extensive sunlit entertainers decks. Set on private landscaped tropical gardens, its enviable lifestyle address is only a two to three minute stroll to everything from shops, cafes and restaurants to the sand, surf and B-Line city buses.
* Extensive living space with a large separate dining area, high raked ceilings and timber parquetry flooring
The size of Collaroy is approximately 2.7 square kilometres. It has 11 parks covering nearly 34.6% of total area. The population of Collaroy in 2016 was 7870 people. By 2021 the population was 7944 showing a population growth of 0.9% in the area during that time. The predominant age group in Collaroy is 50-59 years. Households in Collaroy are primarily childless couples and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Collaroy work in a professional occupation.In 2021, 67.00% of the homes in Collaroy were owner-occupied compared with 66.20% in 2016.
Collaroy has 3,816 properties. Over the last 5 years, Houses in Collaroy have seen a 48.77% increase in median value, while Units have seen a 40.89% increase. As at 31 December 2025:
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