Additional Floor Construction in Porur

If you're planning additional floor construction in Porur, the first question is not finish or elevation. It is whether the existing building can take another floor without trouble in the beams, columns and foundations.

We see this often in Porur: a family wants one more bedroom, a rental unit, or space for grown children, and the old plan is no longer enough. The safe answer depends on the structure you already have, the road approach for materials, and what the approval file on your plot actually permits.

What Porur changes on site

Porur is not a neat, empty suburb where every plot behaves the same. You get a mix of independent houses, older homes near busy stretches, apartment blocks, and sites close to hospitals and the lake-side traffic spine. That means access is often tight, and a concrete lorry, shuttering stack or steel bundle may have to be scheduled around traffic, neighbour movement and the available frontage. On many plots, the real constraint is not the drawing table; it is whether you can bring materials in without blocking the street.

The other local issue is that many owners are trying to extend an older house rather than starting fresh. With an extra floor, the existing footing and column system matter more than the new floor plan. In Porur, we normally begin by checking the old structural drawings if they exist, then by verifying the actual building on site. If the building is sound, the work can move ahead. If the structure is weak, the honest answer is strengthening first, not adding weight and hoping for the best.

Approvals also need to be handled cleanly. For Chennai Metropolitan Area plots, CMDA rules matter, and the building licence comes from the local body for the plot location. That could be a corporation, municipality or town panchayat depending on the exact survey location. If the plot is near the right side of the airport corridor, height clearance may also come into the picture. We do not guess on this. We check the file for the specific site.

Can your old building take one more floor?

This is the technical question behind almost every call we get. Additional floor construction is not just a matter of putting columns on top of columns. The load has to travel through the new slab, beams, existing columns and foundation without overstressing any part. If the original building was designed for G+1 and you want G+2, that jump may still be possible, but only after structural checking and, where needed, strengthening work.

What we inspect first

We start with the as-built condition, not just the old plan. Cracks, seepage marks, column size, beam layout, slab span, stair position, and any sign of settlement all matter. Then we look at the soil and foundation information if available. Chennai plots can vary a lot. In some areas the soil is firm enough for conventional footings, while in others the soil condition pushes the design toward raft or pile solutions with tie beams. The cheap mistake is to skip the soil test because the building "has stood for years". Standing for years is not the same as carrying another floor safely.

What codes and checks guide the work

We design to Indian standards, not to guesswork. RCC work follows IS 456:2000. Seismic action is considered under IS 1893:2016, and Chennai is in Seismic Zone III. Loads are taken under IS 875, and the overall planning follows NBC 2016. Rainwater harvesting is also part of the Chennai conversation, because Tamil Nadu made it mandatory long ago and the water management details should be thought through before the slab is cast, not after the terrace is complete.

1. Site and structure audit — We inspect the existing building, measure the actual members and review any available drawings. This usually takes a few working days.
2. Soil and foundation review — If records are missing or old, we arrange soil investigation and check whether the present foundation can carry extra load.
3. Strengthening design — If the structure needs help, we prepare the retrofit plan before the new floor is priced or scheduled.
4. Approval drawings and BOQ — We prepare the drawings and a detailed BOQ so the money line is clear before contract signing.
5. Execution and inspection — The site engineer checks reinforcement, shuttering, concreting and curing at the right points. This is where skipped steps show up later as cracks and leak paths.

What this page helps you decide

Most owners are really choosing between three routes. One is to add a floor with only minor strengthening, which is the cleanest option when the old structure was built properly. The second is to strengthen and then add the floor, which costs more and takes longer, but keeps a usable building. The third is to rebuild, which sounds expensive until the existing structure is too weak, too irregular or too badly altered for safe extension. We would rather say "no" to the first idea than sell you the wrong one.

Here is the trade-off people often miss. Keeping the old house saves time and avoids demolition, but it also means your new floor has to live with the old column grid, stair position and service routes. A fresh build gives you freedom in layout, headroom and services. The case against rebuilding is obvious: it is more disruptive. The case against adding a floor is also obvious: if the old structure is not fit, you are spending on a compromise that may not age well.

• Ask for the existing structural drawings, if they were ever made.
• Check whether cracks are old plaster cracks or structural cracks.
• Confirm the exact plot approval route for Porur and the local body involved.
• Look at stair location early, because stair shifts are expensive later.
• Ask how rainwater from the new terrace will be collected and drained.
• Do not start with the interior plan before the structural check is done.

Cost, time and approval reality

For residential work, the rate depends on scope. Standard residential construction is usually in the ₹1,900 to ₹2,300 per sq ft range, mid-premium residential in the ₹2,300 to ₹2,800 range, and premium residential above that. For an additional floor, the old structure, strengthening requirement, span, finish level, number of rooms and site access can move the figure sharply. A detailed BOQ settles the real number before any contract is signed. We do not publish a total project price because that would be fiction without the plot file and the structural check.

The approval track depends on where the plot sits. In Chennai Metropolitan Area, CMDA planning rules apply. The licence comes from the local body that governs the site, and the file usually needs patta, encumbrance certificate, FMB sketch, approved drawings, structural stability certificate and drainage details. If the plot is near airport influence areas, height clearance may be part of the process. Getting this right early saves time, because a drawing that looks fine in a meeting can fail on document scrutiny if the site details are incomplete.

How we handle these projects

We keep the technical work in-house, with our civil engineers, structural engineer and architect working on the same file. A site engineer is on site every working day, and if you cannot visit often, we send weekly WhatsApp photo updates. Mr. D. Salamon Ashok Rajan personally reviews projects, and the contract is written with milestone-linked payments and a detailed BOQ. If you want to talk through an additional floor in Porur, call us at +91 97107 13838 or email info@shalomconstruction.com. Our office is at No. 45, 2nd Main Road, Abirami Nagar, Koladi, Thiruverkadu, Chennai – 600077.

Frequently Asked Questions

If you are weighing an extra floor against a rebuild, we can help you sort the structure first and the plan after that. The wrong sequence wastes money. The right one feels plain, almost boring, and that is exactly what you want in civil work.