Upon receipt of a Notice you have several options. You can consent to the proposed works, or dissent to the proposed works, If you fail to respond within 14 days you are deemed to have dissented.
When you dissent to a notice (or are deemed to have dissented) then the Act requires Surveyors to be appointed and they will prepare and serve a party wall award.
KMASS can review the notices and any details of the work / drawings provided and answer any questions you have in order to assist you in deciding how you wish to respond to a notice(s).