Which Act governs your Tamil Nadu apartment association, now
Tamil Nadu replaced its apartment law in 2024. What the new Act requires, who your Competent Authority is, and whether your association still needs to file anything.
Written by the Societly team
Last verified 19 September 2026 · 3 sources
Ask most guidance online how a Tamil Nadu apartment association gets registered, and it will tell you: under the Tamil Nadu Co-operative Societies Act, 1983, or the Tamil Nadu Societies Registration Act, 1975. That answer was correct for thirty years. It stopped being correct on 6 March 2024.
What actually changed
The Tamil Nadu Apartment Ownership Act, 2022 (Act No. 44 of 2022) received the Governor's assent on 15 December 2022, and repeals and re-enacts the old Tamil Nadu Apartment Ownership Act, 1994. The state government notified 6 March 2024 as its date of commencement, and followed with the Tamil Nadu Apartment Ownership Rules, 2024 on 24 September 2024, which prescribe the actual forms and procedure.
Before this Act, Tamil Nadu had no dedicated apartment-ownership registration machinery — associations were formed as general-purpose societies under laws never written for apartment buildings, the same way many Bengaluru associations registered under the wrong Act by default. The 2022 Act gives Tamil Nadu, for the first time, a regime built specifically for apartment ownership, common areas, and the association that manages them — closer in spirit to Karnataka's KAOA than to a generic society registration. (Telangana, by contrast, still hasn't settled this question at all — see which Act should your Telangana association register under.)
Do you need to file anything?
This is the practical question, and the Act answers it with a grandfathering clause. Section 2(z) defines a "society" as any association already existing on the date the Act commenced, representing the majority of apartment owners in a property registered under the old Co-operative Societies Act or Societies Registration Act route. Section 7's proviso goes further: where a building already had a single existing association on commencement, that association "shall be deemed to be the association of that building under this Act" — no fresh registration needed for the association itself.
What is not automatically grandfathered is the Declaration. Under section 4, every building must have a Declaration filed with the Competent Authority — the document that formally brings a property within the Act and records its common areas. For a new building, that is within 90 days of the completion certificate. For a building already standing when the Act commenced, the window was 180 days from 6 March 2024 — meaning, for most existing Tamil Nadu apartment buildings, that deadline has already passed. If your association has not filed a Declaration, that is the first thing to check with your Competent Authority, not the last.
Who is actually in charge of this
Three different bodies matter, and the Rules name them precisely:
| Role | Who |
|---|---|
| Competent Authority — receives the Declaration, registers bye-laws, oversees accounts | The District Registrar of the Registration Department |
| Appellate Authority — hears appeals against a Competent Authority order, within 30 days | The Jurisdictional Deputy Inspector General of Registration |
| Appropriate Authority — sanctions plans, issues the completion certificate | The relevant Town and Country Planning authority |
An association dealing with a stalled Declaration, a disputed bye-law registration, or an unresolved appeal now knows exactly which office that argument belongs in.
What the Act actually requires, once you're in it
Bye-laws, not the Act itself, run daily governance. Section 6 requires every association's bye-laws to cover board formation and elections, quorum, the president's role, maintenance of common areas, and — specifically — "the manner of collecting share of the common expenses from the apartment owners." The Act sets the framework; the bye-laws, once registered with the Competent Authority, do the governing.
Common expenses follow undivided interest, not a flat per-head split. Section 8 ties each owner's undivided interest to "the ratio of the carpet area of his apartment to that of the total carpet area of the project," and section 18 charges common expenses in that same proportion — the same principle Karnataka's KAOA applies via undivided interest under section 10, though the two states compute the ratio differently. Section 18(2) is explicit that an owner cannot escape this by simply not using an amenity: waiving use does not waive liability.
Unpaid common expenses are a charge on the apartment. Section 19 states plainly that a share of common expenses assessed against an apartment "constitute[s] a charge on such apartment," ranking behind only government land revenue, local-authority tax dues, and an existing mortgage. This is functionally identical to the recovery tool Karnataka associations use under KAOA section 19 — the same lever, under a different Act.
Accounts are audited on a fixed statutory clock. Section 21 requires every association to keep proper books, prepare a receipts-and-expenditure account and balance sheet, get them audited within three months of the financial year's close, and file the audited accounts with the Competent Authority. That puts Tamil Nadu closer to Maharashtra's statutory four-month audit deadline than to Karnataka, where KAOA leaves timing to each association's own bye-laws — see what your auditor will ask for for what a proper pre-audit file looks like regardless of which clock applies to you.
Redevelopment has its own gate. Section 13 allows redevelopment either with the consent of at least two-thirds of apartment owners, or if the Appropriate Authority certifies the building is in a ruinous condition endangering occupants. Either route has to go through that authority — a two-thirds vote alone, without the certification path, is not itself the legal basis.
This explains what changed and what the Act requires; it is not legal advice for your specific building. Whether your association counts as an existing "society" under section 2(z), whether your Declaration deadline has already passed, and what to do if it has are questions for a Tamil Nadu advocate who works with the Registration Department — not a website.
The short version
- Tamil Nadu's apartment law changed on 6 March 2024 — the Apartment Ownership Act, 2022 replaced the 1994 Act, with Rules following in September
2024. Guidance describing the old Co-operative Societies Act / Societies Registration Act route as the only path is out of date.
- If your building already had one existing association, it's deemed the association under the new Act automatically — but the Declaration under section 4 is a separate filing, and existing buildings had only 180 days from commencement to file it.
- Competent Authority = District Registrar. Appellate Authority = Deputy IG of Registration. Appropriate Authority = Town & Country Planning.
- Common expenses follow undivided interest by carpet-area ratio (s.8, s.18), and unpaid dues are a charge on the apartment (s.19) — the same recovery lever Karnataka has under KAOA s.19.
- Accounts must be audited within three months of financial year-end and filed with the Competent Authority (s.21) — a statutory deadline, not a bye-law choice.
- Redevelopment needs either two-thirds owner consent or an Appropriate Authority ruinous-condition certificate (s.13).
Sources
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