St Johns Road, Isleworth (TW7): what completed sales show

On ValuQ, the median completed sale price for a flat on St Johns Road, Isleworth TW7 was £332,500, about £589 per square foot. For a flat of about 410 sq ft, comparable completed sales show between £196,000 and £277,000. These figures come from 12 completed sales registered with HM Land Registry in the last 24 months, with floor areas from the energy certificate register. Asking prices are never used, and ValuQ last checked these figures on 9 October 2026.

Each property type on St Johns Road has its own range in the table below, so compare your home with sales of the same type and size.

For a figure for your own home, ValuQ asks local estate agents who cover TW7 to value it. Each valuation comes from a local estate agent who knows the street, and there is no AI in it. Agents respond within 48 working hours, and you see every response side by side on one screen before speaking to a single agent. It is free for homeowners, always, and agents never get your details until you choose.

If your home is already on the market, you can get a second opinion: competing local estate agents value your home side by side. Getting valuations does not change your current contract. Instructing a new agent during a sole-agency tie-in can mean paying two fees, so check your contract first.