Residents in Ascot fear that a proposed unit development will see them lose their city views and hundreds of thousands of dollars from their house values.

The initial 86-unit plan, lodged in 2019, was rejected by the Brisbane City Council, but the decision has since been appealed.

Jason Powell, who challenged the development, says that when he bought the house in 2016 he was assured by a town planner that only a two-level building could be built on the land behind his house.