Who have the valid rights to complaint against me

My old house was build in 47.5 feet more than 40-50 years ago, now i am reconstructing it in 50 feet long . In my colony all people has extend there home length from 46-47 feet to 50 feet because of wide road in my colony .I am the last person left to reconstruct my home. From many years one person of my colony park their car in front of my house due to less length in constructed house , so considering this i decided to construct my house matching to 50 feet length like my colony people done before few years ago. The PROBLEM arises is that : The Car Owner who park their vehicle in front of my house is complaining in local municipal that i am extending my house on the road but everyone is done the same before me and because of the complaint i am not able to construct my new house. The person who is complaining lived after 4-5 house in the line but the neighbours who are living in front of me and side of me don't have any kind of problem. The Municipal people are not listening of me , there is a very high chance that the car parking person have given them money. kindly give any solution or guidance because whole foundation of house is completed, i can't take it back because of the Loading structure built