The list price of £550,000 for a one-bedroom property in East Sheen seems reasonably priced, considering the current market. While the lack of precise square footage information for comparable properties makes a direct price per square foot comparison difficult, neighbouring property prices seem to justify the asking price, taking into account the condition and size of the property. Further details on property specifics and recent local sales data are required to solidify a definitive opinion on its value.

While the property appears well-maintained from the exterior photos, the interior images suggest it would benefit from some modernisation. The kitchen and bathroom appear dated, which could impact the overall condition score. The property appears habitable and well-kept but not in pristine condition.

East Sheen is a highly desirable area in Richmond Upon Thames, known for its excellent schools, transport links, and proximity to Richmond Park. The property’s location on Portman Avenue places it within easy walking distance of several ‘Outstanding’ rated primary schools, and Mortlake train station provides convenient access to central London. This contributes to its high desirability and value.

The property includes a garden, which is a positive aspect in a densely populated area like East Sheen. However, the size of the garden appears relatively small, compared to other properties in the area; hence, a moderate score is given. More information on the exact dimensions would be beneficial for a more precise assessment.