The UK has a ton of old dwellings. Like, a three century old home isn't even a local landmark. It's just a house. They have of course been retrofitted with ele

The UK has a ton of old dwellings. Like, a three century old home isn't even a local landmark. It's just a house. They have of course been retrofitted with electricity and plumbing and gas and modern insulation (usually), but exactly what you get depends on how recently it's been renovated. And "mid 20th century" is a very common answer.