Hi there, I am buying a red-brick mid-terrace house in Dublin built c1886. The house has been unoccupied for five years+ and is in need of full refurbishment.
I am trying to figure out the root cause of some damp issues. It appears in two areas: towards the front of the house (hard to explain) and at the back (due to a dodgy extension).
Layout
The house is high off the street (3/4 steps) but the houses on the row behind are at a higher level.
The house is a two-up two-down. The front reception room has suspended wooden floors. There is a brick air vent under the floor out to the front of the house.
The back reception room has a hard/concrete floor.
Q1 - does anyone know if that hard/concrete floor could have been original? There is no indication of other work on the original piece of the house, but the house is so old I don't know if it may have been filled in at some stage.
There is a hall, kitchen, and bathroom at the back of the ground floor. The kitchen was definitely added (maybe 40 years ago). I'm not sure how much of the hall/bathroom was in the original layout).
Damp
The damp at the front is on the interior wall of the Entrance Hall. It looks like 'rising damp'. See photo.
Q2 - if I intend removing this wall (as not load bearing), do I need to take any further action? What is the possible root cause of this in an internal wall? As it connects to the front of the house, can I connect it to something in the brickwork of the front wall?
There is damp along the original exterior wall between the Living Room and Kitchen. The assumption is that the concrete floor of the Kitchen is bridging the damp. There is damp on other walls of the extension too.
Q3 - for damp on the wall between the extension and the original back wall, I'm assuming I can dig out the floor on the extension and add in a DPM?
Q4 - for damp on the outer extension walls, do this condemn the whole extension and require a rebuild or is it fixable.
Thanks!