01
Which slab is original
We mark the original concrete before any row is drawn.
A roof added at the back
Solar panels for your home in Alwarthirunagar.
Where the backyard was roofed later, that added roof is not the original terrace. Rails stay on the original concrete. They do not continue onto the extension. The visit from Madipakkam is free.
The roof that came later
The original slab, not the extension.
The extension may be a sheet or a thin slab. It is not drilled and not counted. A house with one original slab and no later roof is an ordinary survey.
Two slabs a few inches apart are the Chromepet case. A later room that leaves an L is the West Mambalam case. An old sheet over the rooms of the house is the Siruseri case. Tiles over the rear rooms are the Selaiyur case. A separate sheet shed in the yard is the Manali case. A flat that cannot take a common roof is the Sholinganallur case. City-wide module choice is on panels for a Chennai home.
Extension unusedOriginal slab onlyVisit from MadipakkamMarked before a count
Four checks on a later roof.
02
The extension stays
It is not drilled, and it is not counted.
03
Tank and walkway
Both stay on the original slab. The row uses what remains.
04
DCR
Central assistance needs cells and modules made in India. Eligible homes can receive up to ₹78,000. The amount follows the scheme on the day you apply.
Who it suits
A house with a later roof over the backyard.
Houses where that extension is not the original terrace are the usual fit, when the original slab is in that household's name. A flat in a large block cannot claim the common roof. A house with one original slab is an ordinary survey unless another limit on these pages applies.
How the row is fixed once the original slab is marked is on solar panel installation. Modules you already hold are labour from ₹3,000 per kW, materials excluded, on installation services. The Alwarthirunagar figure is on solar panels and prices in Alwarthirunagar. How the crew sets the row is on solar panels and installation in Alwarthirunagar. The subsidy gap is on panel and price. NDCR against DCR is in that guide before an import is confirmed.
Show the backyard roof, if it was added later
The extension, then the row.
Do you visit Alwarthirunagar from Madipakkam?
Yes. The roof visit is free. A recent bill and a photo of the backyard roof, if it was added later, are enough to start. No modules are ordered that day.
Can the row continue onto that later roof?
No. The extension is not the original terrace. It is not drilled and not counted.
There is no later roof. Does the same limit apply?
No. A house with one original slab is a normal survey. The tank stays, and a walkway stays.
Do subsidy plants need DCR modules?
Yes. Cells and modules must be made in India. Eligible homes can receive up to ₹78,000, subject to the scheme on the day you apply. NDCR is only if that assistance has already been given up.
Send a photo of the backyard roof, if it was added later.
A free visit from Madipakkam. We keep the row on the original concrete, and note whether the plant should be DCR.
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