When purchasing an existing property, the principle of “caveat emptor” (buyer beware) applies. This means you purchase the property with notice of any existing faults, visible or hidden. For this reason, we strongly recommend retaining your own surveyor (usually an engineer or architect) to carry out a detailed structural survey.
The position with new builds is better from a purchaser’s point of view than with second hand properties in that the purchaser will have contractual protections and also, usually, the benefit of new construction standards in the Building Control (Amendment) Regulation (S.I. 9 of 2014). These however are subject to significant limitations and only go a certain way towards protecting the purchaser. While some people opt not to engage a surveyor for a new build it remains prudent and it is our advice that you do so.