correct it, please

Please correct it and help me with words:

They are moving house today. Their new flat is on the third ground floor of a five-ground storey house.
Windows of in the two rooms look out over the yard. Inspite(?) Despite that the windows are being quite wide large, the rooms are pretty dark. The next house drops a big shadow so the rooms only get sun on summer evenings afternoons (evenings are usually dark). This is not very good for plants.
The walls in the new flat is are (because walls is a plural. If it was one wall, then you could use is) thin enough to hear the neighbour's voices. (speak?). (you could say hear the neighbours speaking, or hear the neighbours voices). The cilling ceiling isn't high and it has spots of falling plaster(parget?).
They need to do a renovation.

correct it, please

Please correct it and help me with words:

They are moving house today. Their new flat is on the third ground floor of a five-(ground  storey  house.
The windows of the two rooms look out over the yard. Inspite(?) that Although the windows are quite wide (or big), the rooms are pretty dark. The next house drops a big shadow overshadows it, so the rooms 're getting get the sun only on summer evenings. This is not very good for plants.
The walls in the new flat is are thin enough to hear the neighbours speaking.' voices(speak?).
The cilling ceiling isn't high and it has spots patches of falling plaster(parget?).
They need to do a lot of renovation.