My parents house in Lincolnshire England was built in the early 1500s, so about 500 years old. Have no doubt it will still be there in another 500. Obviously ma

My parents house in Lincolnshire England was built in the early 1500s, so about 500 years old. Have no doubt it will still be there in another 500. Obviously many changes have been made over the years but the core of the house is the same. Solid, 3ft thick, limestone walls. Lime mortar. Probably no foundations, there has been quite a bit of movement previously but none recently. In one room upstairs the floor slopes by nearly a foot from one end to the other. As far as we know the majority of the roofing/floor timbers are original. Limestone slate roof, this needs replacing about every 70years. Stays cool in the summer and relatively easy to keep warm in the winter. Not efficient in the modern sense though. The way we live changes, trying to build a house for how people will live in the future is impossible. All we can do is build something that’s maintainable, solid and hope for the best. I think the danger is that if you aim to design something that will last 1000 years you will over engineer it and it will be difficult to maintain and modify.