The cost story for this archetype
A bungalow is close to the ideal shape for a heat pump. Pipe runs stay short because every room sits on one floor. The loft has room for a buffer tank and the indoor pipework. The garden almost always offers a quiet spot for the outdoor unit, well away from a neighbour's window. The quote tends to land at the lower end of the band. The survey focuses on emitter sizing in the colder rooms, rather than on access.