Before you buy a listed house

In England, buildings of special architectural or historic interest are listed by the government on the advice of Historic England. There are three grades. Grade I and Grade II* cover the most important buildings; the great majority of listed houses are Grade II.

Listing does not freeze a house. It means that changes which affect its character need listed building consent from the local council, in addition to any planning permission. That applies inside as well as out: a fireplace, a staircase or a run of panelling can be as protected as the front door. Carrying out work without consent is a criminal offence, and the liability passes with the house, so a new owner can be asked to put right an earlier owner’s alterations.

Before buying, it is worth asking three things. First, what consents have been granted for the work already done, and can the seller show them? Second, what do you want to change, and is it likely to be approved? A conservation-minded architect can tell you a great deal in a single visit. Third, how is the house maintained? Lime plaster, timber sash windows and slate roofs last for centuries when they are looked after with the right materials, and suffer when they are not.

None of this should put anyone off. The owners of listed houses tend to be the most attached to them, and with good reason. The obligations are mostly the ones any careful owner would accept anyway: to repair rather than replace, and to leave the house in better condition than they found it.