chennai a total of 38 housing projects were registered with the tamil nadu real estate regulatory authority tnrera this year till january 25data available on the states real estate regulatory authority states that most of these projects are located in chennai chengalpet kancheepuram and tiruvallur districts as per the tamil nadu real estate regulation and development rules 2017 all the ongoing housing projects with a minimum of eight units that are meant for sale should be registered with the states real estate regulator the real estate projects such as housing plots should be registered with the tnrerawhile 755 housing projects were registered with the tnrera last year it was 492 during the corresponding year of 2019