31 Undercliffe St, Dee Why is a 5 bedroom, 3 bathroom House with 2 parking spaces and was built in 1950. The property has a land size of 424m2 and floor size of 240m2. While the property is not currently for sale or for rent, it was last sold in April 2022.
Uninterrupted grandstand views over the full sweep of Dee Why Beach and beyond create a captivating backdrop from this perfectly executed custom coastal home. Built to deliver a level of detail and craftsmanship that sets a new benchmark for design, with no detail overlooked in the pursuit of luxury and comfort. The flexible tri level layout offers multiple living areas, which deliver fluid connection to a sequence of outdoor spaces for effortless entertaining on both a grand and intimate scale. Positioned in one of the area's most exclusive enclaves of Dee Why Headland, just a short stroll to the sand, surf and vibrant oceanfront dining strip.
- Newly built by the current owners, crafted to integrate with its coastal landscape and spectacular vantage point
- North facing views over Dee Why Beach, lagoon, Long Reef Headland and the district
The size of Dee Why is approximately 3.4 square kilometres. It has 11 parks covering nearly 15.0% of total area. The population of Dee Why in 2016 was 21518 people. By 2021 the population was 23354 showing a population growth of 8.5% in the area during that time. The predominant age group in Dee Why is 30-39 years. Households in Dee Why are primarily childless couples and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Dee Why work in a professional occupation.In 2021, 50.20% of the homes in Dee Why were owner-occupied compared with 50.30% in 2016.
Dee Why has 13,166 properties. Over the last 5 years, Houses in Dee Why have seen a 48.51% increase in median value, while Units have seen a 36.42% increase. As at 31 December 2025:
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