The list price of £550,000 seems reasonably priced considering the location and the size. While comparable properties are available at different price points in the surrounding area, this price appears within the general range for similar 1-bedroom flats in the Earls Court area. However, the absence of data on average price per square foot for properties of this specific type in the immediate vicinity makes precise evaluation challenging, thus a score slightly below the maximum.

Based on the photographs, the property appears to be in good, clean condition, with a modern kitchen and bathroom. However, it seems relatively small and lacks certain high-end finishes. While well-maintained, it does not appear to be in excellent condition, lacking some characteristics of a luxury property which may be expected for the area.

Earls Court Road in Kensington and Chelsea is a highly desirable location in London. The property benefits from proximity to excellent transport links (various underground lines within a reasonable distance), and several highly-rated schools are within walking distance. The area is known for its vibrant atmosphere, amenities, and proximity to green spaces like Holland Park. However, the specific address location within Earls Court Road might influence the exact desirability, with some parts potentially more desirable than others. This warrants a score slightly below the maximum.

The property has no garden or significant outdoor space, which is very common for flats in central London locations. This is typical for properties in this location and price range and thus receives a low score.