Buying or building on a plot in Sarjapur Road? 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.
177%groundwater pumped vs safe yield, over-exploited (CGWB 2025)
1–15 mdepth to water before the monsoon (CGWB 2018)
Sarjapur Road, Bengaluru is in seismic zone II: low damage risk.
Earthquake loads are low here, but follow IS 1893 for the frame and avoid an open, unbraced stilt floor.
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 over-exploited here: more is pumped out than rain puts back.
Bengaluru Urban district pumps out 177% of the groundwater it can safely take each year (CGWB 2025), which CGWB rates over-exploited.
That is up from 144% in 2017.
Before the monsoon, the water stood 1 to 15 m below ground in CGWB's 23 monitoring wells (2018); most read 2–5 m.
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
Favourable
CGWB's 2023 samples in Bengaluru Urban district did not cross the limits for salinity or fluoride.
District samples are not your borewell: test the water on your plot before you drink it untreated.
4
Varsha Rain, rainwater harvesting and recharge
Act on it
Rainwater harvesting is mandatory for this house under Karnataka's rule.
Bangalore Water Supply and Sewerage (Amendment) Act, 2009/2011; penalty regulations 2015: sites of 1,200 sq ft (about 111 sq m) and above for new buildings; 2,400 sq ft (about 223 sq m) and above for existing buildings (Bengaluru).
It applies from a plot area of 111 m² or more; your plot is 167 m².
Sarjapur Road, Bengaluru gets about 876 mm of rain a year (NASA POWER, 2006 to 2025), 53% of it from June to September. A 1,170 sq ft roof can send about 80,935 litres a year back into the ground.
That needs one recharge pit with a 60 ft recharge bore, costing about ₹87,000 to ₹1.4 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 Bengaluru Urban 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 Sarjapur Road, Bengaluru?
Yes, with the right design. Sarjapur Road, Bengaluru is in seismic zone II: low damage risk. Groundwater is over-exploited 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 Sarjapur Road, Bengaluru?
Bengaluru Urban district pumps out 177% of the groundwater it can safely take each year (CGWB 2025), which CGWB rates over-exploited. That is up from 144% in 2017. Before the monsoon, the water stood 1 to 15 m below ground in CGWB's 23 monitoring wells (2018); most read 2–5 m.
Which earthquake zone is Sarjapur Road, Bengaluru in?
Seismic zone II 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 Sarjapur Road, Bengaluru?
Mandatory for sites of 1,200 sq ft (about 111 sq m) and above for new buildings; 2,400 sq ft (about 223 sq m) and above for existing buildings (Bengaluru). That needs one recharge pit with a 60 ft recharge bore, costing about ₹87,000 to ₹1.4 lakh with GST.
How much does it cost to build a 200 gaj house in Sarjapur Road, Bengaluru?
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.