Almost everything written about plotted layouts is addressed to buyers: check the approval, verify the permit number, walk the site. Very little describes what getting that approval involves for the developer — which authority has jurisdiction, what scrutiny looks for, when the money leaves your account, and why a block of your own plots will be pledged to the authority until the roads are built.
This is that account. Procedure is set state by state, so it is deliberately general — but the structure below holds almost everywhere, and the sequencing mistakes are the same ones repeatedly.
Quick takeaway: Establish jurisdiction first — metropolitan authority inside its limits, state DTCP outside. Expect three to six months with a complete file, and approval costs put at roughly ₹50–70 per sq ft on converted land. Development charges fall due before final approval, OSR and roads are handed over, and part of your inventory is mortgaged to the authority until the works are done. Sell after the permit number, never before.
Step Zero: Establish Jurisdiction in Writing
This is where months get lost, before a single drawing is commissioned. Inside a metropolitan authority's limits, that body approves: CMDA around Chennai, HMDA around Hyderabad, BDA in Bengaluru, AUDA around Ahmedabad. Outside them, the state Directorate of Town and Country Planning handles it, with the local planning authority and local body.
The hazard is the boundary. Metropolitan limits have been extended repeatedly, and parcels that changed jurisdiction can appear on two systems — near Hyderabad, some show on both the HMDA and DTCP portals. Do not infer jurisdiction from which portal returns a result. Get it in writing.
The Threshold That Decides Your Route
Tamil Nadu is a clear example. Layouts above 2.47 acres in municipalities and town panchayats compulsorily need DTCP approval; smaller layouts still need planning permission before plots are sold; and every layout inside Chennai's metropolitan limits needs CMDA certification. The threshold decides which route applies, not whether one does. Sub-dividing and selling without the applicable permission is unlawful everywhere.
What the File Has to Contain
- Clean, marketable title, with the ownership chain documented and no charge that would block conveying individual plots.
- Converted land use. Conversion and layout sanction are separate approvals, and conversion comes first. A layout over unconverted land wastes a cycle.
- A current survey — boundaries, levels, true extent. A gap between deed extent and surveyed extent is slow to resolve.
- Zoning consistency with the master or development plan.
- The layout drawing to the applicable rules — in Tamil Nadu, the Combined Development and Building Rules, 2019 — showing roads, plots, OSR and drainage.
- NOCs as the site requires: highways where there is frontage on a classified road, water, electricity, fire, environment above the threshold.
Files come back for predictable reasons: the surveyed extent does not match the deed, the approach road to the layout is narrower than the rules require, the open space falls short, an NOC is missing, or the proposal conflicts with the development plan. Check your file against each of those before lodging it, because every one of them costs a full cycle.
Technical Scrutiny and the Four Outcomes
The technical section approves the road pattern on the basis of the drawing, so road widths, junctions and the link to the existing network attract most comments. The decision takes four forms, and developers often confuse the last three:
| Outcome | What it means | What to do |
|---|---|---|
| Approved | Sanction granted, subject to conditions | Read the conditions — they bind you |
| Rejected | Refused on merits | Usually zoning or title, not drawing |
| Returned | Deficiency in the submission | Correct and resubmit; a fresh cycle begins |
| Want of particulars | Time granted for missing documents | Supply within the time allowed |
Neither a return nor a call for particulars is a refusal — but each restarts part of the clock. A fortnight spent completing the file before lodging is reliably cheaper than the six weeks a return costs.
Development Charges, and When the Money Leaves
Development charges fund the roads, drainage, water, lighting and amenities that serve the layout, and they are payable before final approval. Sequence that against your cash: by then you have paid for land, duty, conversion, survey and drawings, and carried the file for months — and sold nothing, because you cannot sell until the permit issues. Put these charges, and the ₹50–70 per square foot approval cost, in the land acquisition model, not a post-approval budget.
Scale it to a real layout. Ten acres is about 4.36 lakh square feet; at ₹50–70 a square foot across the land, that is roughly ₹2.2 to ₹3 crore spent before the first plot can lawfully be sold. Developers who discover this at the approval stage end up funding it with expensive short-term money — or with pre-launch "bookings" they should not be taking.
OSR, Roads, and the Mortgage on Your Own Plots
OSR and roads are handed over to the local body — not retained, not sold, not reclassified later. And a share of your plots is mortgaged to the authority as security that the infrastructure will be built. In Telangana, developers deposit plots with HMDA during approval, and those plots cannot legally be sold until the works are complete and HMDA releases them.
- Your launch inventory is smaller than your plot count. A 300-plot layout does not fund itself as 300 plots in phase one.
- Release is the reward for finishing the works. Treating roads as something to finish after sales inverts the incentive the mortgage exists to create.
Buyers increasingly check this — mortgaged plots are now a known trap — so a developer who can produce the plot schedule and release position unprompted closes faster.
One more point on OSR: it is also a selling point. Buyers pay for a park they can see, not a patch of bare land marked "open space" on a drawing. Developing the OSR properly before handover is one of the cheapest ways to lift the price of every plot around it.
RERA Registration, and the Regularisation Route
Sanction does not substitute for RERA. A plotted project within the threshold must be registered before it is advertised or sold, with the number on the advertising; several states also require a QR code. Buyers verify this on the state RERA portal as routine now. Registration also locks you into what you declare — the layout, the amenities, the completion date — so declare what you can actually deliver.
Where an unapproved layout already exists, some states offer regularisation — Tamil Nadu under its 2017 Rules and Section 113-C — but as a paid scheme with strict cut-offs. It is not a cheaper route to sanction for a new project.
A Realistic Timeline
Before the clock starts
Title, conversion, survey, zoning, jurisdiction in writing. Skipping any of these only moves the delay to where it costs more.
Submission to sanction — 3 to 6 months
With a complete, compliant file. Each return or call for particulars adds to it.
Before final approval
Development charges paid, OSR and road handover arranged, security plots recorded.
After the permit, then after the works
RERA registration and sales of unmortgaged plots; then inspection, release, and the rest of your inventory.
Common Mistakes Developers Make
- Marketing before the permit. Taking "expressions of interest" on an unsanctioned layout is how RERA complaints and refund disputes begin.
- Lodging an incomplete file to join the queue. It does not hold your place; it earns a return and a fresh cycle.
- Treating development charges as a later cost. They fall due before sanction, when you have the least cash.
- Counting mortgaged plots in launch inventory. Revenue projections built on plots you cannot sell fall apart in the first quarter.
- Leaving OSR as bare land. It is the cheapest amenity you will ever build, and buyers notice when it is missing.
Where 3D Fits After Sanction
The sanctioned plan is the most important sales document you own, and the hardest for a buyer to read. Turned into an interactive 3D layout, it shows plot numbers, frontage, road widths and open space the way a buyer thinks about them — and it can mark which plots are available and which are held as security, answering the question careful buyers now ask before they ask it.
The Bottom Line
Plotted approval rewards preparation more than persistence. Settle jurisdiction first, lodge a complete file, fund development charges from day one, and plan launch inventory around the plots the authority will hold. Do those four things and the three-to-six-month estimate becomes realistic.
Note: Procedure, thresholds, charges and the security mechanism vary by state and authority and change by notification. The figures here are indicative, from the best-documented examples as at September 2026. Confirm current requirements with the authority for your parcel before committing capital.
Frequently Asked Questions
Which authority approves a plotted layout?
It depends on where the land sits. Inside a metropolitan or urban development authority's limits, that body approves — CMDA around Chennai, HMDA around Hyderabad, BDA in Bengaluru, AUDA around Ahmedabad. Outside those limits, the state Directorate of Town and Country Planning handles it with the local planning authority. Parcels near a revised boundary can appear under both, so confirm jurisdiction in writing before commissioning drawings.
What size of layout needs formal approval?
Thresholds are set by state. In Tamil Nadu, for example, layouts above 2.47 acres in municipalities and town panchayats compulsorily need DTCP approval, smaller layouts still need planning permission before plots are sold, and every layout inside Chennai's metropolitan limits needs CMDA certification. The threshold decides which route applies, not whether one does.
How long does layout approval take and what does it cost?
Typically three to six months where documentation is complete and the proposal complies, with approval and NOC costs put at roughly fifty to seventy rupees per square foot for residential plotted development on already-converted land. Treat both as planning figures — each return or call for particulars adds weeks, and costs vary with the authority and its development charges.
What is OSR and why must I hand it over?
Open Space Reservation is the share of the layout set aside as public open space. Along with the roads, it is handed over to the local body rather than retained or sold, and it cannot quietly be reclassified later. Buyers' advisers check whether handover actually happened, so an incomplete handover surfaces in someone's due diligence even if the authority never pursues it.
What does it mean if my application is returned rather than rejected?
They are different outcomes. After technical scrutiny the application can be approved, rejected, returned, or called for additional particulars. A return means deficiencies in the submission; a call for particulars gives time to supply missing documents. Neither is a refusal on merits, but each restarts part of the clock — which is why a complete first submission is worth the extra fortnight it takes.