Hi there
I live in an end terrace and looking to build a small single storey side extension. My house and garden are all built on concrete - the soil in the garden is only about 3 inches thick and sits on concrete (my street sits on what used to be a big factory site). Is it still necessary to dig deep foundations or can a slab be poured on top of the existing concrete and then build a wall on top? How does having existing concrete rather than soil complicate things?
Thanks
I live in an end terrace and looking to build a small single storey side extension. My house and garden are all built on concrete - the soil in the garden is only about 3 inches thick and sits on concrete (my street sits on what used to be a big factory site). Is it still necessary to dig deep foundations or can a slab be poured on top of the existing concrete and then build a wall on top? How does having existing concrete rather than soil complicate things?
Thanks