Common mistakes societies make in the development agreement

The costliest development-agreement mistakes Mumbai housing societies make are almost all avoidable: signing before independent legal vetting, leaving the carpet-area promise vague, vacating flats before the agreement and every member's Permanent Alternate Accommodation Agreement (PAAA) are registered, accepting a bank guarantee below the 20% of project value the State now requires, and omitting a firm delay-penalty clause. Each of these can cost a family years of transit rent and lakhs of rupees in lost carpet area. This expanded guide sets out the twelve errors that recur most often — with the exact fix, the legal provision, and the number you can check against your own draft — so your managing committee can catch them before a single member signs.

Every mistake below has a number attached. Open your draft agreement next to this page and tick them off one by one. Four of them decide most disputes:

Why the development agreement is the one document that matters most

The offer letter, the brochure and the presentation slides are marketing. The development agreement (DA) — the master contract between your society and the developer — together with each member's PAAA (the individual agreement recording that member's new flat, transit rent, corpus and handover date), is what a court will actually read if the project goes wrong. Once these are signed and registered, the wording binds every member for the whole project, often four to six years. A weak clause cannot be argued away later just because the developer "promised something better" in a meeting. That is why the review has to happen before signing, not after.

If you are still comparing developers, run each offer through our offer comparison tool first, then apply the twelve checks below to the winning agreement. For sample wording you can lift, keep our agreement clause library open alongside this guide.

The twelve mistakes — and how to fix each one

1. Not registering the DA and each member's PAAA

Many societies sign the development agreement but never register it, and treat the PAAA as an optional formality. Under Section 17 of the Registration Act, 1908, a document that creates rights in immovable property must be compulsorily registered to be fully enforceable and admissible as primary evidence. The Section 79A redevelopment directive dated 4 July 2019 goes further and requires both the development agreement and each member's PAAA to be registered. An unregistered agreement leaves members badly exposed if a dispute reaches court.

The fix: Register the DA, and get a separate registered PAAA for every single flat in each member's own name, showing the exact new carpet area, transit rent, corpus and handover date. Pay the correct stamp duty under the Maharashtra Stamp Act, 1958 and the registration charges properly, and keep the registered copies with the society and with each member.

The number to check: one registration number per flat, plus one for the DA. A 40-flat society must be able to produce 41 registration numbers — the DA's, and 40 PAAAs. Ask the secretary in writing for the document number, year and sub-registrar office of each one. If the list is short by even one flat, that member has no registered proof of what they are getting.

2. Vacating before registration and before FSI/TDR is loaded

The single most damaging mistake is handing over possession early. Once the buildings are empty and demolished, the society loses almost all its bargaining power. If the developer has not yet loaded the Floor Space Index (FSI, the ratio that fixes how much can be built on the plot) and Transferable Development Rights (TDR), obtained the sanctioned plans and Commencement Certificate (CC), and registered the agreements, members can be stuck paying their own rent for years with no legal handle.

The fix: Vacate only after the DA and all PAAAs are registered, the sanctioned plans and CC are in hand, the full FSI/TDR position is clear, and the first cheques for transit rent, brokerage and shifting have cleared. Make these written pre-conditions to handover in the agreement itself. Use our FSI calculator to sense-check the buildable potential the developer is claiming.

The number to check: the DA should recite the permissible FSI the developer is working to. Measure your access road and read it off Table 12 of DCPR 2034. If the agreement recites a lower figure than the table gives, the developer has quietly kept the difference.

Three details decide real money here. First, a road of exactly 9.00 m falls in the higher band — the table says "less than 9 m" for the basic band and "9 m & above" for the next, so a 9.00 m road gets 2.00, not 1.33 or 1.00. Nine metres is a very common layout width in Mumbai. Second, permissible FSI is computed on the plot area excluding land under DP roads, roads with a sanctioned Regular Line, Regulation 16, Regulation 14 amenity plots and Regulation 17 reservations to be surrendered — not on the gross plot, so check which area figure the DA multiplies. Third, the premium portion is charged at 50% of the ASR land rate for FSI 1 under Regulation 30(A)(6); a developer costing it at 60% is using the draft rate and overstating the outgo by a fifth.

Source: DCPR 2034 (sanctioned), Table 12 and Regulation 30(A)(2) and 30(A)(6). Greater Mumbai only — the rest of Maharashtra follows UDCPR.

3. A vague carpet-area definition

"You will get 30% more area" means nothing until the agreement says more of what, measured how. Developers sometimes quote built-up or super built-up area for what you surrender, but net RERA carpet area for what you receive — so the real gain quietly shrinks. Under the Real Estate (Regulation and Development) Act, 2016 (RERA), the area promised to an allottee is the net usable carpet area, and your agreement should speak the same language throughout.

The fix: Insist that both existing and proposed areas are stated in RERA carpet area, in square feet, flat by flat, with a floor plan annexed. Add a clause that if the final constructed carpet area falls short of what is promised, the developer compensates at the prevailing market rate per square foot. If you are unsure how the two measures compare, our carpet-to-built-up converter makes the difference concrete.

The clause to check: the agreement must define carpet area in the words of Section 2(k) of RERA, 2016 — the net usable floor area, excluding the external walls, the areas under service shafts and any exclusive balcony, verandah or open terrace, but including the internal partition walls. Those last five words are the ones developers leave out. A clause that says "excluding the area covered by walls" strips the internal partition walls out of your entitlement and quietly shrinks every flat. DCPR 2034 uses the same meaning — Regulation 2 states that carpet area carries the meaning given under RERA 2016 — so there is no second definition to argue about.

4. A bank guarantee below the 20% minimum

A bank guarantee is the society's safety net if the developer stalls or walks away. Too many agreements either omit it, keep it token, or let it expire long before the project ends. The Section 79A directive dated 4 July 2019 now sets a floor: the shortlisted developer must furnish a bank guarantee of not less than 20% of the project value. A guarantee smaller than that, or one that lapses in the second year, is no protection in the fourth.

The fix: Take an unconditional bank guarantee from a scheduled bank of at least 20% of project value, and valid until the Occupation Certificate is received. Where transit rent and corpus are large, negotiate cover above the minimum so both are separately secured. Our possession and corpus guide explains how much cover is reasonable.

Do this sum on your own draft before the general body meeting: take the project value written in the agreement, multiply by the guarantee percentage offered, and divide by your society's total monthly transit rent. The answer is the number of months your members are actually protected for.

5. No delay-penalty clause

Redevelopment delay is the number-one grievance in Mumbai. The 79A directive of 4 July 2019 expects the project to be completed within two years of the plinth CC (three years in exceptional cases), yet many agreements set no firm date and no penalty. Separately, Section 18 of RERA entitles allottees to a refund with interest, or interest for the delay, when possession is late — but a silent DA forces members into that fight instead of paying automatically.

The fix: Fix a firm completion date consistent with the 79A two-year timeline, plus a defined grace period. After that, the developer must pay liquidated damages — commonly an escalated monthly rent plus a penalty sum — automatically, without the society having to sue. Tie transit-rent payment to the bank guarantee so it cannot simply be switched off. If a project is already slipping, see what to do when the builder delays.

The number to check: read the completion clause and look for three numerals. (1) The completion period — 24 months from the date of the plinth CC, or 36 months if the DA justifies an exceptional case. (2) The grace period, stated in months, not "a reasonable extension". (3) The liquidated damages, stated in rupees per month or as a multiple of the transit rent. A clause with fewer than three numbers in it is not a delay clause. Then write the arithmetic into the agreement itself: plinth CC date + 24 months = completion date; + the grace months = the last free day; damages run automatically from the day after that.

6. No protection against silent plan changes

Members approve a layout and a set of amenities, and later find the sanctioned plan has been changed — fewer parking bays, a smaller garden, an extra sale wing. Section 14 of RERA bars the promoter from altering the sanctioned plans or the common-area layout without the consent of at least two-thirds of the allottees. The Bombay High Court has enforced this principle, as summarised in our note on why changing sanctioned plans needs consent.

The fix: Write the RERA Section 14 protection into the DA itself: no change to the sanctioned plan, the amenities or the common areas without a two-thirds resolution of the society. Annex the approved plan so any deviation is obvious on sight.

The number to check: count two-thirds of your own flats and write that figure into the clause so nobody has to compute it in a heated meeting. In a 40-flat society two-thirds is 26.67, so 27 members must consent in writing. In a 60-flat society it is 40. In a 24-flat society it is 16. When a developer says "the members have approved the change", ask for the count and the signatures, not the assurance.

7. A committee member connected to the developer

Redevelopment must be transparent. The Section 79A directive dated 4 July 2019 expressly bars any managing-committee member or office-bearer — or a relative — from being the developer, precisely to stop the conflicts of interest that wreck member value. When the person negotiating your deal is on both sides of the table, the whole process is open to challenge.

The fix: Any member with a family or financial connection to a bidding developer must disclose it in writing and stay entirely out of selection and negotiation. Follow the 79A process — an open tender, a project management consultant, and the decision taken in a video-recorded special general body meeting attended by the Registrar's authorised officer, with the required quorum and majority.

The number to check is zero. Zero managing-committee members, zero office-bearers and zero of their relatives may appear anywhere on the developer's side — as promoter, partner, director or shareholder. Put a signed declaration to that effect from every committee member on the file before the tender opens, and ask each bidder for its list of partners, directors and shareholders so the two lists can be compared name by name.

8. Skipping independent legal vetting

Societies often sign the draft the developer's lawyer prepares. That draft protects the developer. Signing it without your own independent review is how one-sided clauses slip through unnoticed.

The fix: Appoint your own advocate and, ideally, a project consultant to vet the DA, the PAAA, the title and the plans before signing. A structured second opinion pays for itself many times over. See the common one-sided terms in our development agreement red flags guide, and consider an independent tender & agreement review.

The number to check is four documents, and your advocate's written opinion should cover all four by name: the development agreement, the model PAAA, the title with a search report, and the sanctioned plans. Put the number of years the title search must cover into the advocate's appointment letter, so it cannot be delivered as a one-page certificate. If the opinion you receive names fewer than four documents, the vetting is incomplete.

9. Over-wide force-majeure wording

Force majeure covers genuine events beyond anyone's control — natural disaster, war, a government ban. The danger is loosely drafted clauses that stretch "circumstances beyond the developer's control" to cover ordinary business risk such as funding shortfalls, labour issues or slow flat sales. That turns your delay-penalty clause into a dead letter.

The fix: Define force-majeure events narrowly, by a closed list. Exclude the developer's own financial or approval failures. Require written notice within a fixed number of days, and cap the total extension so the project cannot drift indefinitely.

The audit test: read the force-majeure clause and count the numerals in it. There should be at least two — the notice period in days, and the maximum cumulative extension in months. A clause with no numbers at all has no limit, and a delay clause sitting behind it is worth nothing. Also count the listed events: a closed list ends with a full stop, not with "and other circumstances beyond the developer's control". Those eight words reopen everything the list just closed.

10. Vague amenities and no defect-liability period

"Premium fittings" and "modern amenities" are marketing words, not commitments. And a building can look finished yet develop leaks, cracks or plumbing faults within a year. Section 14(3) of RERA already makes the promoter liable for structural and workmanship defects reported within five years of possession, but your DA should restate this so members are not left arguing about it.

The fix: Annex a specification schedule listing flooring, sanitary and electrical fittings, lift make, water and power backup, parking and every common amenity, with brand and grade. Restate the five-year defect-liability obligation and a clear process for getting faults fixed free of cost. Our note on defect-liability court orders shows how courts have applied it.

The two numbers to check: Section 14(3) of RERA gives the allottee five years from the date of possession to bring a structural or workmanship defect to the promoter's notice, and then obliges the promoter to rectify it without further charge within thirty days. Both numbers belong in the DA. In practice the five years is only usable if the clock start is written down, so record the possession date flat by flat in the PAAA, and send every defect complaint in writing with a date on it — that dated letter is what starts the thirty days running.

11. Leaving the conveyance obligation to chance

Redevelopment is not finished until the land and building are legally transferred to the society. Section 11 of the Maharashtra Ownership Flats Act, 1963 (MOFA) obliges the promoter to convey title to the society. Where a developer drags its feet, Section 11(3) of MOFA provides deemed conveyance — the society applies to the Competent Authority (the designated District Deputy Registrar of Co-operative Societies), who, after a hearing, issues a deemed-conveyance order and gets the conveyance registered unilaterally, without the builder's signature.

The fix: Make conveyance to the society a defined, time-bound obligation in the DA, backed by the bank guarantee. If the developer still fails, use the deemed-conveyance route — our conveyance guide walks through the steps.

The number to check: a stated number of months from the Occupation Certificate by which conveyance must be completed, backed by the bank guarantee remaining live until it is. If the conveyance clause contains no month figure, it is not an obligation, it is an intention. And the concrete step if the developer stalls is not "consult a professional" — it is an application under Section 11(3) of MOFA to the Competent Authority, the designated District Deputy Registrar of Co-operative Societies for your district, who can order and register the conveyance without the builder's signature.

12. Overlooking the tax and stamp-duty position

The financial terms members celebrate can be eroded by tax nobody planned for. Under Section 45(5A) of the Income-tax Act, 1961, for an individual or HUF the capital gains on a registered redevelopment agreement are taxed in the year the completion certificate is issued, on the stamp-duty value of the member's share plus any cash received. On the brighter side, courts have held there is no fresh stamp duty on the redevelopment flat a member receives in place of the old one.

The fix: Ask your advocate and a tax adviser to confirm each member's position before signing, and make sure the DA and PAAA record the consideration cleanly. Where a member sells additional area, remember Section 194-IA requires the buyer to deduct 1% TDS once the value is Rs 50 lakh or more — see our note on TDS on property purchase. On a Rs 1,20,00,000 sale that is Rs 1,20,000 the buyer must deduct and deposit, and the member must claim back in their return.

The number to check is the year, not the rupees. Under Section 45(5A) the capital gain on a registered redevelopment agreement is taxed in the year the completion certificate is issued — not the year the DA is signed and not the year the member moves back in. Ask the developer to record in the PAAA that it will give the society a copy of the completion certificate with its date, because that single date fixes which assessment year every member in the building must declare the gain in.

A worked example: how one weak clause costs a family

Suppose a member's flat is recorded as 500 sq ft built-up and the offer promises "35% extra area". Adding 35% to 500 gives 675 — but 675 of what? If the agreement measures the flat being surrendered in built-up and the flat being returned in RERA carpet, the two figures are not comparable and no member can check the promise at all. The percentage is meaningless until both sides of the sum are in the same unit.

Now stack a second weak clause on top. The bank guarantee is 5% of project value instead of the 20% the 79A directive requires, and there is no delay penalty. The developer overshoots by three years, transit rent quietly stops in year two, and the token guarantee cannot fund the shortfall — on the 40-flat, Rs 60 crore example above, 5% covers about 19 months of the society's rent while 20% covers about 75. The family pays its own rent for a year and has no automatic remedy. Fixing three clauses in advance — one carpet definition in the words of RERA Section 2(k), one guarantee at 20%, one delay penalty with 24 months and a rupee figure in it — removes all of this risk before anyone signs, at no cost.

Audit your own agreement: the number to check against each mistake

Print this table, sit with the draft, and write the figure from your agreement in the margin next to each row. Anywhere the agreement is silent or lower, you have found a clause to renegotiate.

Source: DCPR 2034 (sanctioned), Table 12, for the FSI figures. The remaining figures are from the instruments named in the last column — the Registration Act 1908, RERA 2016, MOFA 1963, the Income-tax Act 1961, and the Section 79A directive dated 4 July 2019. DCPR 2034 applies to Greater Mumbai only.

What this means for your society

Read together, these twelve fixes have one theme: put every promise in writing, in law, before anyone moves out. A strong agreement is not about distrusting a good developer — it is about protecting members if circumstances, ownership or intentions change three years into a five-year project. Remember, too, that a well-drafted DA is your first line of defence, because criminal remedies are slow: where a developer genuinely cheats a society, the Bharatiya Nyaya Sanhita, 2023 provides for cheating under Section 318 and criminal breach of trust under Section 316, but a clear contract and a live bank guarantee resolve problems far faster than any FIR. See how the courts have treated such cases in our note on builder cheating as a criminal offence, and read how RERA applies to redevelopment for the wider protective framework.