G.O.(Ms).No.69, Amendment to Tamil Nadu Combined Development and Building Rules, 2019 (11 Mar 2024)
The Tamil Nadu Housing and Urban Development [UD4(1)] Department issued G.O.(Ms).No.69 on 11 March 2024 to amend the Tamil Nadu Combined Development and Building Rules, 2019. It generally raises the relevant height threshold for non high rise buildings from 12 metres to 14 metres and updates related professional, setback, rainwater harvesting and building category provisions.
What the government changed
The Tamil Nadu Housing and Urban Development [UD4(1)] Department issued G.O.(Ms).No.69 on 11 March 2024. The appended notification amends the Tamil Nadu Combined Development and Building Rules, 2019, using powers under the Tamil Nadu Town and Country Planning Act, 1971, the Tamil Nadu Panchayats Act, 1994, and the Tamil Nadu Urban Local Bodies Act, 1998. The government directed publication in the Tamil Nadu Government Gazette, Extraordinary, dated 11 March 2024.
Revised non high rise building categories
G.O.(Ms).No.69 changes several references from 12 metres to 14 metres across the building rules and annexures. Key changes include:
- Non high rise buildings up to 14 metres are assigned to a Registered Architect or Registered Engineer under the amended professional category.
- The next category now covers non high rise buildings above 14 metres and up to 18.30 metres.
- References applying special provisions to buildings above 12 metres are changed to buildings above 14 metres.
- A separate Annexure XVII reference to non high rise buildings up to 9 metres is increased to 10 metres.
- Rainwater harvesting categories are revised to distinguish buildings up to 14 metres from buildings above 14 metres and up to 18.3 metres.
- A category covering buildings above the threshold or exceeding 16 dwelling units now begins above 14 metres instead of above 12 metres.
Setback changes
The amended tables provide the following side and rear setback entries:
- For buildings up to 7 metres, a plot up to 9 metres wide requires 1 metre on one side. A wider plot requires 1 metre on either side or 2 metres on one side.
- For buildings above 7 metres and up to 14 metres, a plot up to 6 metres wide requires 1 metre on one side.
- For the same height range, plots above 6 metres and up to 9 metres wide require 1.5 metres on one side.
- For plots above 9 metres wide, the requirement is 1.5 metres on either side or 3 metres on one side.
- Rear setback is nil up to 7 metres in height and 1.5 metres for buildings above 7 metres and up to 14 metres.
Who should check the amendment
G.O.(Ms).No.69 is relevant to owners, buyers, architects, engineers and developers dealing with non high rise buildings. They should check whether project documents, proposed height, setbacks, dwelling count and rainwater harvesting classification use the revised 14 metre threshold.
This summary is generated from the source document to help you find what is relevant. The PDF above is authoritative. For advice on your own property, use LandLens One or speak to a qualified professional.
Common questions
Has the non high rise building limit been increased from 12 metres to 14 metres?
The notification replaces many references to non high rise buildings up to 12 metres with references up to 14 metres. Buildings above 14 metres and up to 18.30 metres remain a separate category.
Who may handle a non high rise building up to 14 metres?
The amended provision identifies a Registered Architect or Registered Engineer for non high rise buildings up to 14 metres.
What rear setback applies to a building above 7 metres and up to 14 metres?
The amended table specifies a rear setback of 1.5 metres. For buildings up to 7 metres, the table states that the rear setback is nil.
Does the amendment change rainwater harvesting building categories?
Yes. The categories now distinguish non high rise buildings up to 14 metres from those above 14 metres and up to 18.3 metres, including industries and institutional buildings in the latter entry.
