Courts on Open Spaces, Recreation Grounds and Podiums in Mumbai Redevelopment

Under the rules that govern building in Greater Mumbai, the open spaces, recreation grounds and set-back margins drawn on a sanctioned plan belong to the residents and the wider community — for daylight, ventilation, greenery, safe movement and fire-engine access — and a developer cannot quietly build over them to add extra saleable flats. The Development Control and Promotion Regulations (DCPR 2034) make a minimum recreational open space, recreation ground and marginal set-backs compulsory for every eligible plot, and the Supreme Court of India has treated open space reserved in an approved scheme as being held in a kind of public trust that a planning authority cannot casually turn into building plots. For a Mumbai housing society going into redevelopment, that means the open areas shown on your approved plan are protected entitlements — not spare land your builder is free to trade away for a taller, denser tower.

This page is general legal information for society members, not legal advice. The exact open-space, set-back and podium figures depend on your plot size, road width, building height and the sanctioning authority's conditions, so have your own sanctioned plan and agreement checked by a qualified advocate before you sign anything.

What the law protects — and what each term means

Every building in Mumbai is approved against a sanctioned plan — the official drawing the planning authority (usually the BMC, MHADA or SRA) stamps as approved. That plan fixes how much of the plot may be built on and how much must stay open. The open portion is not wasted land; it is made up of several protected elements, and it helps to know exactly what each one is:

• Recreation ground (RG) / recreational open space: the garden, play area and sitting space kept for residents. On larger layouts a fixed minimum share of the plot must be set aside as RG.
• Marginal open space (set-backs): the gap that must be left between the building and the plot boundary on every side. Set-backs let light and air reach each flat and — critically — let a fire engine reach the building in an emergency. The taller the tower, the wider the set-back required.
• Amenity open space: land reserved for a public amenity such as a garden, a facility or a road-widening — often the very condition on which extra Floor Space Index (FSI), the ratio that controls how much you may build, was granted.
• Podium: a raised deck, usually built over the parking, that can be landscaped and used by residents. A podium is allowed within height and coverage limits, but it does not automatically count as the recreational open space a society is owed.

You will find these figures on three documents you should always read together: the sanctioned plan, the IOD (Intimation of Disapproval — the BMC's approval letter that lists the conditions), and the Commencement Certificate (CC), which permits construction to begin. A glossy marketing brochure is none of these and proves nothing about your open space.

How the courts have reasoned

The guiding idea comes from the Supreme Court of India, which has held that open space earmarked in a sanctioned development scheme exists for the benefit and quality of life of the community and cannot be arbitrarily converted into construction. In that reasoning, reserved open space is treated almost like a public trust: the authority holds it for the residents, not for whoever wants to profit by building on it. A developer's wish to add saleable area does not override that purpose.

The Bombay High Court has applied the same logic to Mumbai — that reservations and open spaces shown in a Development Plan or a sanctioned layout must be used only for the earmarked purpose, and that mandatory open space is not "spare" FSI to be quietly absorbed into the tower. These are general principles drawn from reported decisions; the outcome of any single dispute still turns on that particular plot's own plan and approvals.

Redevelopment adds a second, powerful layer of protection under RERA — the Real Estate (Regulation and Development) Act, 2016, administered in this State by MahaRERA. Section 14 of RERA says that once the plans and specifications are sanctioned, the promoter cannot change them without the written consent of at least two-thirds of the allottees (the flat purchasers, that is, your members). So a builder cannot lawfully shrink your recreation ground or set-backs on its own — a change of that kind needs your society's consent, and members are bound only by consent they have actually given. This is the same rule we explain in our note on why changing sanctioned plans needs consent. Section 14(3) additionally makes the promoter answerable for structural defects for five years. If a builder breaks the sanctioned plan or fails to deliver a registered amenity, allottees can complain to MahaRERA under Section 31, and a failure to provide a promised open space or amenity can also amount to a "deficiency of service" under the Consumer Protection Act, 2019.

What DCPR 2034 requires on the ground

In Greater Mumbai the numbers themselves live in DCPR 2034. In plain terms, the regulations make the following mandatory for every eligible plot, and they cannot be waived just to fit in more flats:

• a minimum recreational open space / recreation ground for the layout, scaled to the size of the plot;
• minimum marginal open spaces (set-backs) on all sides, which grow larger as the building gets taller;
• on larger plots, dedicated open spaces and amenity space provided as a condition of development.

Special redevelopment routes have their own layout rules within the same framework. Regulation 33(7) governs the redevelopment of old cessed buildings (older tenanted buildings that pay a repair cess), and Regulation 33(9) governs cluster redevelopment, where several buildings are rebuilt together. Both still have to provide the mandatory open spaces and set-backs; a higher permissible FSI on these schemes does not cancel them. Our plain-language guide to DCPR 2034 explained and our note on open-space and amenity rules for large plots walk through how these apply, and the FSI calculator helps you sense-check how buildable area and open space fit together on your land.

The four protected spaces at a glance

How open space quietly disappears

Most disputes are not about a builder openly refusing open space. They are about slow erosion — small changes that each look minor but together turn shared green space into flats. The common patterns are:

• Showing the recreation ground on the plan but leaving it locked, or parking generators, water tanks and service structures on it.
• Presenting a podium deck as the recreation ground when residents actually needed usable ground-level open space — or building a podium that exceeds its permitted height or coverage.
• Trimming marginal set-backs below the minimum to widen the tower footprint. This also chokes fire access, which ties directly to the rules on high-rise buildings on narrow roads and on refuge areas and fire safety.
• Treating amenity open space — handed over as a condition for additional FSI, TDR or a concession — as if it were ordinary saleable area.
• Building beyond the sanctioned plan altogether, which becomes illegal or unauthorised construction that can hold up your Occupancy Certificate.

Because the sanctioned plan protects these spaces for the residents, none of the above is a purely commercial choice the developer is free to make alone. If it shrinks what the approved plan promised, it can be questioned and challenged.

What this means for your society: what to check on the plan

Open space is a right you defend on paper, before signing — not a promise you chase after the towers are up. Work from the approved documents, not the brochure, and confirm each of the following:

1. Get the actual sanctioned plan, IOD and CC and confirm the recreation ground and open spaces are clearly marked and dimensioned in figures, not merely shaded green.
2. Check that the recreational open space meets the DCPR 2034 minimum for your plot size, and that the RG sits at usable ground level unless a podium is genuinely permitted in addition to it.
3. Measure the set-backs on every side and confirm that fire-engine access is maintained all the way up to the building.
4. If there is a podium, confirm it stays within its permitted height and coverage and does not simply replace the open space you are owed.
5. Ask whether the plan leans on any amenity space or on an extra-FSI or TDR concession, and make sure that space is protected in writing.
6. Insist that the recreation ground, set-backs, podium and amenities are written into the development agreement, matched exactly to the sanctioned plan. Our note on red flags in a development agreement shows what weak clauses look like, and the amenities should be ready and usable at possession.
7. Have the plan and the draft agreement reviewed independently. Our free tender and agreement review is built for exactly this.

If open space has already been encroached

If construction has already eaten into open space or set-backs, first compare what was built against the sanctioned plan and the agreement to confirm the encroachment in writing. Depending on the facts, you can raise it with the planning authority and file a complaint with MahaRERA. Be aware that the correct forum matters: disputes between a society and its own members are decided by the Co-operative Court under Section 91 of the Maharashtra Co-operative Societies Act, 1960, not an ordinary civil court, while disputes with the builder may instead lie before MahaRERA or a consumer forum. Courts and MahaRERA have repeatedly protected mandatory open spaces, but the outcome depends on your specific plan and approvals, so consult an advocate experienced in redevelopment before you take any formal step.

The bottom line is consistent across the Supreme Court, the Bombay High Court, MahaRERA and DCPR 2034: what is shown as open on the approved plan must stay open. Protect it in the sanctioned plan and in your development agreement, and you protect the light, air, safety and long-term value of every flat in the building.