If you are building or converting residential properties to sell then it will be necessary to take out a Structural Warranty or obtain a PCC.
Lenders will generally only lend on a newly built (or newly converted) property where the property is covered by a warranty scheme (for example, LABC warranty) or the Professional Consultant’s Certificate (PCC). The PCC is for use by professional consultants when designing and/or monitoring the construction or conversion of residential buildings.
It is also worth noting that if you are building/converting your new home to live in with no intention of selling it is still strongly advisable to take out a Structural Warranty or obtain a PCC as your circumstances may change.