Yes, but rather than him just randomly select an address for a location he has taken the time to visit it and describe it accurately in his books. If he's gone to this level of detail already, it would make sense that the layout of the furniture, fittings and items in the building also map to an accurate model.

Some authors can't always go to this level of detail. For example J. K. Rowling was in Scotland when writing the first Harry Potter book, as a result she describes Kings Cross from memory, confusing it with another London Station, so her description of it does match the real world location.