The list price of £345,000 for a one-bedroom apartment in Leytonstone seems reasonably priced, considering the current market conditions in the area. The inclusion of a garden studio adds to the value. However, a lack of precise square footage data and limited comparative data makes it difficult to give a definitive valuation, hence a score of 7.

The property appears to be in good condition based on the provided photos. The interior is modern, clean, and well-maintained. The kitchen and bathroom appear recently updated. The external photos show a well-maintained building. Minor imperfections might exist, but overall the presentation suggests a good condition.

Leytonstone is a desirable area in East London, benefitting from good transport links via the Central Line and proximity to Wanstead Flats. The area has seen significant regeneration and offers a mix of amenities and green spaces. However, the specific location on Harrow Road needs further investigation to assess the immediate surroundings fully, hence a score of 7.

While the property includes a garden, its size appears relatively small. The garden includes a garden studio which adds value, but the overall plot size is limited. A small garden space is better than no garden, but it does not provide extensive outdoor space, justifying a score of 4.