House construction in Kerala: a stage-by-stage checklist
What to check at each stage of house construction, why it matters, and when it stops being cheap to fix. Written for homes in Kerala; most of it holds anywhere in India.
Three rules run through every page:
- Examine the details. Every check says what to look at and how, not just that it matters.
- Consider and compare alternatives. Every decision lays out its options side by side, with when each one fits.
- Act when you have leverage. Every check says when it must be done: before the work is covered, before you sign, before you pay.
Before work starts
- Plot and land checks before you build
Nothing about the design or budget is real until the plot's constraints are known. Everything settled here multiplies through every later stage.
Land documents verified · Soil test (SBC) completed · Building rules feasibility checked · Utilities and site risks screened
Kolo services: Architect shortlist
- House design, drawings and building permit
This stage controls most of what your home will ever cost. Everything after it is pricing and building what gets decided here.
Lifestyle brief written down · Independent floor plan review passed · Working drawing set complete · Building permit obtained
Kolo services: House plan review · Structural design check · Architect fee check
- Construction quotation and BOQ checks
Hold your own numbers before any contractor number arrives. Quotes are compared line by line against your baseline - never total against total.
Identical tender pack sent to 2+ contractors · Quote comparison and conflicts pass done · Grades and thicknesses are written down, not just brands · Waterproofing is scoped everywhere water goes
- Construction agreement checks before you sign
This is the last moment you hold the leverage. After the advance is paid, every unresolved item becomes a negotiation you conduct from the weaker side.
Agreement check passed · Contractor background verified · Site handover checklist agreed · The payment schedule keeps money back until the end
On site
- Excavation and setting-out checks
The soil at founding level can only be seen now. Once the excavation is filled back, this record is the only one that will ever exist.
Excavation depth reaches undisturbed soil, not fill · Setting out checked against the plot boundary and setback · Anti-termite treatment applied before the levelling course
- Foundation checks
Steel, cover blocks and termite treatment disappear the moment concrete is poured. Look, photograph, then pour.
Cover blocks in place — 50 mm to footing reinforcement · Steel matches the grade and diameter on the drawing · Concrete cured for at least seven days · Rubble foundation: through bond stones at every course band
- Concrete and RCC structure checks
Your columns and slabs carry everything above them for the life of the house. The days before each pour are when you can still see them.
Cube samples taken and tested for this pour · Shuttering not struck before the code minimum · Concrete grade and batching as specified, not "as usual" · The right sand in the concrete, and its silt checked
- Masonry and wall checks
Which material your walls really are, and whether the openings are true, stops being visible once plaster and frames go on.
Bricks or blocks soaked before laying, and joints filled · Masonry cured, and lintels bear the specified length · Laterite blocks: soaked properly, and laid with the right mortar · Burnt clay bricks: water absorption within the standard
- Plastering checks
Every wire and pipe buried in your walls is mapped only by the photos taken this week. Plaster closes the map.
Plaster thickness and mix as specified, on a wetted surface · Plaster cured before any finish goes on it · Plastering sand is plastering sand, not concrete sand
- Flooring and tiling checks
Levels, slopes and the wet-area waterproofing live under the tiles. Water finds every shortcut taken here.
Tiles laid to falls where water must drain, and bedding is full · Tile batch and shade recorded before laying starts
- Door and window installation checks
Frame material and fixing get covered by architraves and sealant. Kerala rain tests every frame joint for decades.
Frames plumb, and holdfasts anchored into masonry · Timber moisture and treatment recorded for this climate
- Waterproofing and painting checks
A finish coat is only as good as what is under it. Preparation is what this stage hides.
Ponding test passed before the waterproofing is covered · Painting held until the surface is dry enough to take it · Paint thinned only as much as the tin allows · Primer used, and the coats applied in the maker's order
- Electrical and plumbing checks
The tests happen now or never. A pressure gauge photo today saves breaking a wall open in two years.
Plumbing pressure-tested before concealing · Earthing installed and tested, and the record kept
- Handover checks before the final payment
Nothing gets covered here. This is where the record of your whole build is collected, checked and handed to you.
Snag list agreed in writing before the final payment · As-built drawings and warranties handed over
Also: Home interiors guide