As you may be aware, you are perfectly capable of serving you own Notice on your neighbour with regard to your proposed works provided it is Valid. It must be signed and dated.
You will find on pages 30 — 43, of this explanatory booklet produced by the Department for Communities and Local Government, precedent letters or free notices that will conform to requirements set out in the Party Wall etc. Act 1996.
Please contact us should you require a surveyor to act on your behalf.