A Lower Parel under-construction project — registered with MahaRERA in 2019, original completion date December 2023 — filed a Section 7 extension application in October 2023 citing labour shortage and material cost escalation, which was granted in February 2024 for 18 months extending the completion deadline to June 2025. The project subsequently filed a second extension in April 2025 for another 14 months. As of May 2026, the project is still under construction with revised completion deadline August 2026. 73 of the 187 allottees in this project have spent an aggregate ₹4.6 Cr in EMIs (or notional pre-EMI carrying cost) over the cumulative 32-month delay against their original possession expectation. Of the 73, only 11 filed timely Section 18 refund-or-interest applications under RERA. The remaining 62 are likely to recover nothing material, despite being entitled to substantial interest under the act.
Why this is the corridor's least-understood buyer recourse
Section 18 of RERA gives the buyer two clean options when a project misses its registered completion deadline: take a refund of all money paid (with prescribed interest) or continue with the project and claim interest for every month of delay until possession. The act says explicitly that this election is the buyer's. Yet in Property Butler's corridor data, 78% of affected buyers either do not file at all, file too late, or accept a token settlement offered by the developer that is materially below their RERA entitlement. The reason is a combination of misunderstanding the procedure, fear of antagonising the developer, and underestimating the interest entitlement.
How MahaRERA project extensions actually work
Under Section 7 of RERA, a developer can apply for extension of project registration on three grounds: force majeure (defined narrowly — war, flood, drought, fire, cyclone, earthquake), default of any government authority (clearance delays), or any other valid reason as MahaRERA may decide. The application must be filed before the original registered completion date expires. Standard extensions in Maharashtra range from 6 to 24 months in a single grant.
Property Butler corridor data on the 27 Lower Parel and Prabhadevi extensions filed in 2023-2026:
| Stated extension reason | Share of corridor applications | Average extension granted |
|---|---|---|
| Labour shortage and material cost escalation | 41% | 12-14 months |
| Statutory approval delays (OC, fire, environment) | 26% | 10-12 months |
| Design revision or scope change | 19% | 14-18 months |
| Force majeure (true force majeure) | 14% | 6-12 months |
The corridor pattern that emerges: design-revision and labour-shortage are the most lenient grounds and yield the longest extensions. True force majeure is rare but tends to produce shorter approvals because MahaRERA scrutinises tightly. The buyer should not assume an extension application is automatic — about 12% of corridor applications are rejected or pruned. But where granted, the act of granting does not extinguish buyer remedies for delay against the original agreement-for-sale completion date.
The Section 18 refund-or-interest mechanic
Section 18 of RERA is unambiguous: if the developer fails to complete or is unable to give possession of the apartment in accordance with the terms of the agreement-for-sale, then the developer is liable on demand to the allottees, in case the allottee wishes to withdraw from the project, to return the amount received with interest at the prescribed rate. If the allottee does not wish to withdraw, the developer pays interest for every month of delay until handing over the possession.
Prescribed interest rate in Maharashtra is SBI MCLR plus 2% — currently around 11.0-11.5% per annum as of May 2026. Material relative to a 9.0% home loan or even a 6.5% bank fixed deposit.
Section 18 interest entitlement on a ₹6 Cr flat, 18-month delay
~₹99 lakh
Computed on amount paid (assume 70% = ₹4.2 Cr) at 11.25% for 18 months — Property Butler MahaRERA-rate corridor benchmark, May 2026
This is the entitlement before any negotiation. Most corridor developers will offer 1-3% of agreement value as a delay-settlement — somewhere between ₹6-18 lakh on the same ₹6 Cr flat. The gap between entitlement and settlement is where buyer education and timely filing make the difference.
Why most corridor buyers under-recover — the four-failure pattern
Failure 1 — Confusing the registered completion date with the agreement-for-sale possession date. The registered date is what MahaRERA tracks for extension purposes; the agreement-for-sale date is what the buyer can sue on. Sometimes they match; often the agreement says possession by end of registered completion date plus a 6-month grace period. The buyer's clock for Section 18 starts at the grace-period-expiry date, not the registered completion date. Property Butler corridor data: about 31% of buyers either misread or overlook this distinction and file too late.
Failure 2 — Accepting a token settlement to keep the relationship warm. Developers offer a delay-compensation cheque or interest-waiver-on-future-payments to settle Section 18 exposure. This typically settles at 15-25% of full RERA-rate entitlement. Buyers accept because they want possession smoothly and fear retaliation on snagging or fit-out cooperation. Property Butler practice: file the Section 18 application even if you accept the settlement, retain the option to reverse the settlement if the developer's behaviour post-settlement deteriorates.
Failure 3 — Filing under the wrong forum. Section 18 claims must be filed before MahaRERA, not Consumer Forum (Consumer Forum jurisdiction is limited where RERA applies, per Imperia Structures Limited vs Anil Patni). Filing in the wrong forum can lose 12-24 months. The MahaRERA fee is ₹1,000 (yes, that low) plus legal representation fees of ₹50,000-2 lakh depending on complexity.
Failure 4 — Aggregating with other affected buyers without coordination. Class-action-style aggregated filings can streamline procedure but require coordination through the allottee association. About 23% of corridor projects have functioning allottee associations; the rest fragment, which slows MahaRERA orders.
The corridor-specific extension pattern by developer
Multi-extension history (multiple Section 7 filings)
- Several Lower Parel mill-land projects from 2017-2019 launch vintage
- Two Prabhadevi premium tower projects from 2018-2020 vintage
- One Tier-2 developer project on Senapati Bapat Marg west cluster
On-time or single-extension only
- Marathon FutureX, Marathon NextGen Era (Marathon corridor track record strong)
- Rustomjee Crown phases (delivered phase 1 on registered timeline)
- Kalpataru Oceana (on registered timeline)
- Lodha Allura, Lodha Ciel (within original or grace window)
The filing process and what to expect on timeline
Step 1: Buyer files Section 18 application via MahaRERA portal, attaching agreement-for-sale, payment receipts, and possession-date evidence (or notice of refusal to take incomplete possession). Filing fee ₹1,000 per project.
Step 2: MahaRERA issues notice to the developer, typically within 7-21 days. Developer files reply within 21 days of notice.
Step 3: Hearings scheduled — usually 3-6 hearings across 4-9 months. Developer typically argues force majeure, scope change, or labour shortage to mitigate. Buyer's counsel cross-references RERA original timeline, payment history, agreed liquidated damages clause.
Step 4: MahaRERA order — typically grants interest at SBI MCLR plus 2% on amounts paid, from grace-period-expiry to actual possession. Property Butler corridor sample: median time from filing to order is 11 months. Median recovery rate (vs RERA-rate entitlement) is 84%.
Step 5: Recovery. Developer compliance with MahaRERA orders has been strong in Mumbai — over 80% of corridor orders in 2024-2026 were complied with within 60 days. Non-compliance triggers Section 63 penalty (up to 5% of project cost) and further enforcement via the Maharashtra Recovery of Debts Act.
Frequently Asked Questions
If the project was granted a Section 7 extension by MahaRERA, can I still claim interest under Section 18?
Yes. A grant of extension under Section 7 protects the developer from MahaRERA penalty for project-registration lapse; it does not extinguish allottee remedies under Section 18 for delay against the agreement-for-sale. This was the central holding in multiple MahaRERA orders since 2021. The two sections operate independently — the developer can be in compliance under Section 7 while owing the allottee interest under Section 18.
What if my agreement-for-sale contains a clause that the possession-delay rate is 6% per annum or a flat ₹X per month, much lower than RERA prescribed rate?
Such clauses are generally struck down by MahaRERA as inconsistent with the statutory minimum. The RERA-prescribed rate (SBI MCLR plus 2%) is the floor; the agreement can offer higher, but cannot validly offer lower. About 67% of pre-2020 corridor agreements have sub-statutory delay-rate clauses, and Property Butler corridor cases routinely override these in MahaRERA orders.
If I refuse to take possession because the project is incomplete, does my interest entitlement continue to accrue?
Yes, provided the refusal is on bona fide construction-incomplete grounds. The buyer must give written notice of refusal stating the specific incompleteness reasons (visible structural work, missing common-area amenities, OC not received). Refusal without bona fide grounds can be argued as buyer's mora and may not continue interest accrual. The cleanest approach is a documented snagging report supporting the refusal, with copy filed to MahaRERA.
Can I claim Section 18 interest if my bank disbursed the home loan at progress milestones and I never actually paid out of pocket?
Yes. Interest accrues on amounts paid by the allottee, regardless of source. Bank-disbursed loan amounts are deemed paid by the allottee for Section 18 purposes (you remain liable to the bank under the home loan). The interest entitlement effectively cushions the allottee against the cost of carrying the loan during the delay window. Property Butler routinely structures corridor Section 18 claims to capture loan-disbursed amounts.
How does Section 18 interact with the developer's possession-bonus on completion (some corridor projects offer ₹2-5 lakh on possession-acceptance within 30 days)?
Possession bonuses are commercial sweeteners and do not waive Section 18 rights. Buyers can accept the possession bonus and still pursue Section 18 interest for the delay window preceding possession. Developers will sometimes try to extract a written waiver as a condition of the bonus — Property Butler advises refusing any waiver language and accepting the bonus only if it is unconditional.
Related Reading from Property Butler
→ Possession Delay Penalty Clause Negotiation Playbook→ OC Delay RERA Compensation Playbook→ Stalled Project Rescue Buyer Playbook→ Prabhadevi MahaRERA Decoder Buyer Guide→ Developer Last 3 Completed Projects Audit Playbook→ Prabhadevi Area GuideProject running late in Lower Parel or Prabhadevi?
Property Butler computes your Section 18 entitlement, prepares the MahaRERA filing, and pursues the interest claim end-to-end. Most corridor cases recover 80-90% of statutory entitlement within 9-15 months of filing.
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