The house is in a bad state of repair but it has possibilities.

这房子虽亟待修缮，但仍有可资利用的价值。

《牛津词典》

This building is in a bad state of repair.

这幢建筑处于急需修的状态。

youdao

These buildings are in a bad state of repair.

这些建筑物亟待修葺。

youdao

If your house isn't in too good a state of repair though, you might have a lot of outgoings before you can start.

BBC: Wheels of fortune

Many of its Pakefield laboratories and offices are within a 19th Century former hotel which is said to be in a poor state of repair.

BBC: Cefas sign

"The most pressing problem is that the mechanical and electrical systems are in a poor state of repair, which is why we have embarked on a five-year programme of aggressive maintenance to mitigate against the most serious equipment failures, " he said.

BBC: Urgent repairs to Parliament to cost ?69m, peers hear