Pricing a domestic property based purely on sq. metreage seems slightly naive to me, it may provide some kind of mathematical basis for comparisons, but to what end I am not entirely sure. People outside the pure investment / landlord market tend to buy with an emotional content and a consideration of aspects which a price per sq. metre does not cover, ie. how bright the rooms are, the 'feel' of the rooms, what side of the house the sun rises/sets, the way the house space is currently being used (as an indicator for how they could use it themselves). This may explain the comment earlier in this thread that local estate agents appear to have a limited appreciation/understanding of price per square foot/metre - it's less relevant than for commercial transactions. Businesses generally have a reqt which can be expressed with more mathematical content, based on the needs of the business and anticipated growth. If you're using sq. metreage as your guide to 'value' you may have a frustrating experience with 'inconsistently' priced property.