Cost expected for house construction-Analysis given and my comments

QUOTE

I would like to build a house in Trivandrum. Appreciate if you can correct my cash flow / budget break up t get an idea prior to start
 
Land area : 5.5 cents
Floor area : 1700 - 1850 sft
 
1. Project Design, Mobilisation & local authority approvals 5%
2. Excavation, Foundation and Basement  8%
3.Structural Concrete - Framing & Block work  33%
4.Windows and Door frames  8%
5. MEP - 1st fix (Electrical conduiting, cable pulling & plumbing piping works)10%
6.Masonry & siding works 5%
7.Floor & wall coverings (water proofing, Tiles, skirting, counter tops etc)6%
8. Internal & external painting works 5%
9.Boundary wall & external works (inter lock tiles, soak pit, garden, gate, man holes etc) 6%
10.Trim Package ('Cabs, Counter, Doors, Millwork, hand rails etc) 6%
11.MEP - 2nd fix (Wiring accessories, sanitary fixtures, appliances etc) 7%
12.Final Grade1%
Anjana Shine
Quantity Surveyor

My reply

Being a Quantity Surveyor you must be having your own data back up and other reasons to support your Analysis.
 
Having designed and built more than 200 houses in different parts of the state,my experience shows such classification  of expected cost has not much meaning.
 
There is no substitute to following  these steps for designing and building house In Kerala
1.Site visit by Architect to study site conditions
2.Initial design and obtaining local authority approval and other such statutory permits
3.Engineering Estimate
 
After taking Engineering estimate which gives item wise quantity and costing based on finalised plan,you will get a feel of cost involved provided the rates are obtained from some one who is regularly involved in construction activities  in Kerala.
But the actual cost in a place like Kerala where all input cost keep on increasing without any pattern can be known only when you complete house.

Do you require our services for design and construction of your house at Trivandrum?