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CMDA approval process — every step explained

From the first drawing to the sanctioned plan in your hand — here's exactly how CMDA approval works in Chennai 2026, with realistic timelines and what to expect at each stage.

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Quick answer

The CMDA approval process has 7 stages: site visit, drawings preparation, document compilation, online filing, fee payment, site verification, sanctioned plan issued. Total timeline for a clean file: 30–45 days. Files with objections add 15–30 days per cycle. Homeli's internal 47-point checklist ensures most files clear first-shot.

The 7 stages in detail

  1. Site visit + jurisdiction check (Day 1) — confirm CMDA vs DTCP, measure plot, verify setbacks, identify constraints.
  2. Drawings preparation (Days 2–14) — architect-signed plans, elevations, sections, structural drawings.
  3. Document compilation (Days 14–18) — patta, EC, tax receipts, title deed, ID proofs, affidavit, NOCs.
  4. Online filing (Day 18–20) — submission through CMDA OSR portal with all uploads.
  5. Fee payment (Same day) — development charge + scrutiny + security deposit paid online.
  6. Site verification (Days 20–35) — CMDA assistant planner visits plot.
  7. Sanctioned plan issued (Days 35–45) — approval received or objections addressed.

What can go wrong at each stage

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Frequently asked

How does the CMDA approval process work step by step?
Seven stages: (1) site visit and jurisdiction confirmation, (2) drawings preparation by registered architect (14 days), (3) document compilation including patta, EC, tax receipts, (4) online filing through CMDA OSR portal, (5) fee payment of development charge plus scrutiny plus security deposit, (6) site verification by CMDA assistant planner, (7) sanctioned plan issued or objections addressed. Total 30–45 days for clean files.
How long does each step take?
Site visit and jurisdiction check: day 1. Drawings: days 2–14. Document compilation: days 14–18. Online filing and fee payment: days 18–20. Site verification: days 20–35. Sanctioned plan: days 35–45. The drawings stage is usually the longest and most important — file quality there determines whether you get objections later.
Can I track my CMDA application status online?
Yes — the CMDA OSR (Online Single Window) portal shows application status under your application reference number. Homeli also tracks your file daily and updates you when status changes. Common statuses: submitted, under scrutiny, site verification scheduled, objections raised, sanctioned, sanctioned plan ready for download.
What happens during CMDA site verification?
A CMDA assistant planner visits your plot, physically measures key dimensions (plot boundaries, setbacks, road width), confirms that the submitted drawings match ground reality, and checks for any encroachments or violations. The visit is typically scheduled 1–2 weeks after filing. If everything matches, the file moves to approval; if mismatches are found, objections are raised.
What if I get an objection on my CMDA file?
Common objections: setback adjustment needed, FSI calculation issue, missing document, drawing clarification required. Each objection requires resubmission with the correction. Homeli handles all objection responses as part of the original consultant fee — no extra charge per cycle. Typical resolution: 15–30 days per objection cycle. Pre-checked files rarely get objections.
Can CMDA approval be done without an architect?
No. CMDA mandates that drawings be signed by a registered architect (or licensed surveyor for very specific small categories). Self-drawn or app-generated drawings are not accepted. The architect's stamp and registration number confirm professional accountability for setbacks, FSI calculations and structural soundness.

Related guides

CMDA Approval HubMain page CMDA ChargesFee details DocumentsWhat to gather TimelineDay-by-day Online FilingPortal walkthrough Architectural ServicesDrawings first