Seems the new function flow is for you ;)
Works also in volume ;)

curvated line must be the mediane of the wall

Just take same length of the straight line than the curvated line for have exact deformation and size (not made here :)
Here i have erased the building but now just offset the curve as you want for extrude the wall then make boolean diff :)





seems the solution can work

first is maybe better as you can extrude deformed circles in 2 same direction in the same time
offset the curvated line by mediane or as you want
extrude the wall then make boolean diff :)