Hi Dave
If you are selling your flat to your neighbour without any marketing of your property taking place then, yes you can be excluded from the HIP legislation.
The important factor is that the property has not been marketed. Marketing the property does not just mean marketing with an estate agent. It could include many other ways, such as ads in newspapers or a homemade sign in the window. Further
Home Information Pack legislation details can be found on this link.
I have compiled a list of
HIP FAQ on our website which may answer other questions you may have.