The list price of £850,000 seems reasonable considering the location, but requires further analysis. The limited plot size and smaller square footage compared to other properties in the area needs to be considered. The nearby property prices show a wide range, with some significantly higher, reflecting the premium for larger properties and penthouses within Chelsea Harbour. The price per square foot is not provided for this property, however, the price appears to be on the lower end of the market for the area, given the limited size.

The property appears to be in good condition based on the provided photos. The apartment is modern, with a recently renovated or well-maintained kitchen and bathrooms. While the interior styling might not appeal to all, the overall condition is above average for a property of this age and type. There is no visible evidence of significant repairs needed.

Thames Quay, Chelsea Harbour is a highly desirable location in London. The proximity to Chelsea Harbour, with its marina and amenities, significantly boosts the location score. The area also benefits from good transport links (Imperial Wharf Overground station is within walking distance) and excellent schools nearby. While Sands End might not be as central as some other parts of London, its riverside setting and relative tranquility make it attractive to many buyers.

The property has a balcony or terrace, which adds to its desirability, but the lack of a garden or significant outdoor space limits the land score. The size of the balcony is not specified, but the images suggest it is relatively small compared to the size of the apartment.