Buying or building on a plot in Gandhipuram? Read its kundli first: earthquake zone and foundation, groundwater, water quality, rain and the harvesting rule, Vastu for its facing, and the cost of the house.
92%groundwater pumped vs safe yield, critical (CGWB 2025)
Gandhipuram, Coimbatore is in seismic zone III: moderate damage risk.
Design the frame to IS 1893 and use the ductile detailing of IS 13920 for buildings of more than two floors, and always where there is stilt parking.
For a G+1 house, isolated RCC footings are the usual starting point on firm soil; filled ground, black cotton soil or a high water table call for a raft or piles. A soil test (about ₹15,000 to ₹40,000) settles it before the drawings.
2
Jal Groundwater level and borewell
Act on it
Groundwater is critical here: more is pumped out than rain puts back.
Coimbatore district pumps out 92% of the groundwater it can safely take each year (CGWB 2025), which CGWB rates critical.
That is down from 122% in 2017.
Expect a deep borewell to fall further. Plan rainwater recharge into the ground from day one, and a storage tank for municipal or tanker water.
3
Neer Groundwater quality
Needs care
CGWB found high TDS (salinity) and fluoride above the safe limit in some of Coimbatore district's groundwater.
Test the borewell water on your plot (TDS, fluoride, nitrate and hardness) before you rely on it, and budget an RO or a fluoride filter for drinking water.
4
Varsha Rain, rainwater harvesting and recharge
Act on it
Rainwater harvesting is mandatory for this house under Tamil Nadu's rule.
Tamil Nadu Municipal Laws Ordinance/Amendment Act, 2003; G.O. Ms. No. 56 (MA&WS), 21 Jul 2003 amending the TN District Municipalities Building Rules 1972 and Multi-storeyed and Public Building Rules 1973 covers every new house in Tamil Nadu, whatever its size.
If you skip it: The authority can install RWH and recover the cost plus expenses as property tax. Water supply can be disconnected until RWH is provided. New water and sewer connections are refused without RWH.
Gandhipuram, Coimbatore gets about 1,211 mm of rain a year (NASA POWER, 2006 to 2025), 50% of it from June to September. A 1,170 sq ft roof can send about 1,11,887 litres a year back into the ground.
That needs one recharge pit with a 120 ft recharge bore, costing about ₹1.1 lakh to ₹1.7 lakh with GST.
By Vastu, underground water belongs in the north-east, which is where the recharge pit or sump usually goes.
5
Vastu Facing and layout
Favourable
North-facing plot. North-facing plots are among the most sought after in Vastu, linked with wealth and growth.
Main door: in the middle-to-east part of the north wall (padas N3 to N5).
Kitchen in the south-east (or north-west), cooking facing east. Master bedroom in the south-west. Pooja room in the north-east.
Stairs in the south, west or south-west, climbing clockwise. Toilets in the west or north-west, never in the north-east or the centre.
Overhead tank over the south-west; borewell, sump and recharge pit in the north-east; septic tank in the north-west. Keep the centre of the house (brahmasthan) open and uncluttered.
6
Nirman Construction cost and approvals
Favourable
About ₹56 lakh to ₹62 lakh for a G+1 house of 2,340 sq ft, finished to a standard specification.
Taken at 65% ground coverage: 1,170 sq ft a floor on a 1,800 sq ft (200 gaj) plot. Your local bye-laws set the real coverage, setbacks and height for the plot size.
Structure only: ₹40 lakh to ₹44 lakh. Premium finishes: ₹70 lakh to ₹82 lakh and up. Rates are per sq ft of built-up area with GST, from our own priced BOQ.
Not included: approval fees, a basement, boundary wall, lift, solar, borewell and interiors.
Before work starts: building plan approval with architectural and structural drawings, then the occupation certificate at the end, which in most states needs the rainwater harvesting pits built.
Groundwater, water quality and rain figures are for Coimbatore district as a whole: the government does not publish them by sector or locality. Vastu notes are traditional guidance, and the foundation and cost lines are starting points. A site visit, a soil test and a water test on your plot give the exact picture.
Frequently asked questions
Is it safe to build a house in Gandhipuram, Coimbatore?
Yes, with the right design. Gandhipuram, Coimbatore is in seismic zone III: moderate damage risk. Groundwater is critical here: more is pumped out than rain puts back. Plot Kundli on this page reads all six: ground and earthquake zone, groundwater, water quality, rain and rainwater harvesting, Vastu and cost.
What is the groundwater level in Gandhipuram, Coimbatore?
Coimbatore district pumps out 92% of the groundwater it can safely take each year (CGWB 2025), which CGWB rates critical. That is down from 122% in 2017.
Which earthquake zone is Gandhipuram, Coimbatore in?
Seismic zone III under IS 1893 (Part 1): 2016. Design the frame to IS 1893 and avoid an open, unbraced stilt floor.
Is rainwater harvesting mandatory for a house in Gandhipuram, Coimbatore?
Mandatory for all buildings (no size threshold). That needs one recharge pit with a 120 ft recharge bore, costing about ₹1.1 lakh to ₹1.7 lakh with GST.
How much does it cost to build a 200 gaj house in Gandhipuram, Coimbatore?
About ₹56 lakh to ₹62 lakh for a G+1 house of 2,340 sq ft, finished to a standard specification. Structure only: ₹40 lakh to ₹44 lakh. Premium finishes: ₹70 lakh to ₹82 lakh and up. Rates are per sq ft of built-up area with GST, from our own priced BOQ.
What is a Plot Kundli?
A free report on a plot before you buy or build on it, read in six houses like a kundli: Bhoomi (ground, earthquake zone and foundation), Jal (groundwater), Neer (water quality), Varsha (rain and rainwater harvesting), Vastu (facing and layout) and Nirman (cost and approvals). It is built from CGWB, NASA POWER and BIS figures and the state's building rules.