What are the extra costs needed apart from construction cost through contractor in Chennai?

What are the extra costs needed apart from construction cost through contractor in Chennai?


1.  Underground sump

·       Underground water storage tanks are used for storage of potable drinking water & rainwater collection. It is more effective when there is no water in bore well and in the summer seasons were the ground water is less.

·       The general specifications for sump work will be outer walls with 4.5” thick brickwork and inner walls with 4.5 reinforced concrete.

·       The rates for the underground sump varies from Rs.20/ -Rs.30/ liter

·       The capacity of the tank is calculated as inner dimensions of LxBxHx28liters.

2.  Septic tank

·       Septic tanks are tanks where all the waste from the house is collected.

·       The specification for the septic tank will be 9” thick brickwork.

·       The rates for the septic tank varies from Rs.15- Rs.25/lite.

·       The capacity of the tank is calculated as inner dimensions of LxBxHx28liters.

3.  Compound wall

·       Compound wall means a wall separating two independent plots and it can also act as a boundary for our plot.

·       The specification for compound wall will be AUGER pile with 5feet depth column for every 10 feet for up to 8 feet height compound wall.

·       The rates for compound wall varies from Rs.1400 – Rs.1600/- RFT(running feet)

4.  Weathering coarse

·       A course laid on top surface terrace roof slap to protect it against weather elements like rain, heat etc

·       The specification can be white cooling tile with mortor or it can be with lime, brick jelly , kaduka and jiggery mixer along with motor and red clay tile.

·       The rates varies from Rs. 130- Rs.180/- sqft

5.      Elevation work like glass work, CNC work, tile work, grill work, lighting work.

6.  Headroom

·       a separate room constructed above the staircase on the terrace.

·       Specification can brickwork and RCC roof or brickwork with asbestos sheet.

·       The rates varies from Rs.1200 – Rs.1500/-sqft.

7.  Light, fan, toilet accessories.

8.  Extra basement height.

9.  Interior works

·       modular kitchen, cupboard works, loft closing, TV unit, Pooja unit etc

10.     Land approval, building approval.

11.     Borewell

12.     All government related works

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