Section 30(4) in Tamil Nadu Combined Development and Building Rules, 2019
(4)Conservation zones in the Heritage Towns. - Government may notify Heritage Towns, a list of Heritage precincts there in with metes and bounds and conservation zones around such listed Heritage precincts. Any new construction of building or use of premises in the conservation zones shall conform to the special guidelines relating to height, use etc., prescribed and notified by the Government from time to time.
