The list price of £420,000 seems reasonable considering the property’s condition, location, and included garden. Comparing it to other nearby listings (though sqft data is missing from those listings), it appears to be within a competitive price range for a 3-bedroom maisonette in Sunbury-on-Thames. However, the lack of precise square footage data and comparative properties with similar features prevents a higher score.

Based on the provided photographs, the property appears to be in good to excellent condition. The interior is presented in a modern, well-maintained style. The kitchen and bathroom seem recently renovated. This suggests a high level of upkeep. However, absence of information on the property’s structural condition limits the score.

The property is located in Sunbury-on-Thames, a desirable area in Surrey. Its proximity to train stations (Sunbury and Kempton Park), local amenities, and well-regarded schools (St. Paul’s Catholic College, Chennestone Primary School) contributes to its desirability. However, the specific location on Staines Road East requires further investigation to assess factors such as traffic noise and immediate neighbourliness, limiting the score.

While the property includes a garden, the images reveal a relatively modest-sized plot. The garden itself looks well-maintained, but its size in comparison to other properties in the area could be smaller. Thus a mid-range score is warranted.