Environmental Clearance for Real Estate & Construction Projects in India: A Guide for Developers

Environmental Clearance (EC) is the approval that most developers only think seriously about when it becomes a problem, either because a competitor’s project has been halted by the National Green Tribunal (NGT), or because their own site has crossed a built-up area threshold nobody flagged at the land acquisition stage. At Sharma Kemp Chambers, the EC-related work I see falls into two very different categories: developers structuring a project correctly from the outset to sit within, or just outside, the applicable threshold, and developers who started construction without realising EC was required at all, and are now looking for a way back into compliance. The second category has become considerably harder to navigate over the past year, given a genuinely unsettled and actively litigated Supreme Court position on whether a lapsed compliance failure can be regularised after the fact.

This guide sets out when Environmental Clearance is required for a real estate or construction project in India, the process for obtaining it, the parallel approvals that often travel alongside it, and where the law currently stands on projects that proceed without one.

Quick Reference: Does Your Project Need Environmental Clearance?

Before the detail, here is the framework I use with clients at the land acquisition and design stage, when adjusting a project’s built-up area even marginally can change the entire regulatory pathway:

• Built-up area below 20,000 sq. m. Generally falls outside the EIA Notification, 2006’s Environmental Clearance requirement altogether, though state and municipal building bylaws may still impose their own sustainability and environmental conditions.
• Built-up area of 20,000 sq. m. up to 1,50,000 sq. m. Falls within Category B2 under Item 8(a) of the EIA Notification, requiring only a screening-level clearance from the State Environment Impact Assessment Authority (SEIAA), without a full Environmental Impact Assessment report or public hearing.
• Township or area development projects covering 50 hectares or more, or with built-up area of 1,50,000 sq. m. or more. Fall within Category B1 under Item 8(b), requiring a full EIA report and public consultation, still appraised at the state level.
• Location matters as much as size. A project that would otherwise be Category B is elevated to Category A, requiring Central Government clearance through the Ministry of Environment, Forest and Climate Change (MoEFCC), if it falls within a defined buffer of a protected area, critically polluted area, notified eco-sensitive zone, or an inter-State or international boundary.
• Starting work without a required EC is not a paperwork shortcut that can reliably be fixed later. The legal position on retrospective regularisation is currently unsettled at the Supreme Court, and proceeding without EC exposes a project to NGT intervention, including demolition orders, well before any regularisation route might become available.

The Legal Framework

The Environment (Protection) Act, 1986 and the EIA Notification, 2006

Environmental Clearance in India derives its authority from Section 3 of the Environment (Protection) Act, 1986, which empowers the Central Government to take measures for protecting and improving environmental quality, including by restricting the location and operation of specified categories of industries and projects. Acting under this power, the Ministry issued the Environment Impact Assessment (EIA) Notification, 2006, which remains the operative framework, as amended, for determining which projects require prior EC before construction or land preparation (other than securing the land itself) can begin.

Where Real Estate and Construction Projects Fall Within the Schedule

The EIA Notification’s Schedule lists the categories of projects requiring prior EC, and real estate and construction projects fall specifically within Item 8:

Item 8(a), Building and Construction projects, covers standalone buildings, whether residential, commercial, institutional, or mixed-use, with a built-up area (defined as the covered area across all floors, including basements and service areas) of 20,000 sq. m. or more but less than 1,50,000 sq. m. These fall within Category B2, meaning they are screened by the SEIAA but do not require a full EIA report or public hearing, a materially lighter process than Category A or B1 projects.

Item 8(b), Townships and Area Development projects, covers projects covering 50 hectares or more of land, or with a built-up area of 1,50,000 sq. m. or more, whether structured as a standalone township or an area development project (roads, drainage, sewage, and civic infrastructure preceding or accompanying a township). These are classified as Category B1, requiring a full EIA report and public consultation, even though appraisal still generally happens at the state level through the SEIAA.

The General Condition: Why Location Can Override Size

A frequently underestimated feature of the EIA Notification is its “General Condition,” which elevates an otherwise Category B project to Category A, placing it under central MoEFCC jurisdiction with the fuller Category A process, where the project site falls within a defined buffer distance of specified sensitive features: generally 5 kilometres of a protected area notified under the Wild Life (Protection) Act, 1972, a critically polluted area identified by the Central Pollution Control Board, or a notified eco-sensitive area, and generally 10 kilometres of an inter-State or international boundary (a distance that can be reduced, or dispensed with entirely, by agreement between the neighbouring States or Union Territories sharing the boundary, where the site does not otherwise fall within a sensitive feature’s buffer). This is a genuinely common trap: a project comfortably within Category B2 by built-up area alone can still require full central-level clearance purely because of its location, and this should be checked at the site selection stage rather than discovered mid-design.

The PARIVESH Portal

All EC applications, from Form 1 and Form 1A submission through Terms of Reference, EIA report upload (where applicable), and final grant, are processed through the Ministry’s PARIVESH (Pro-Active and Responsive facilitation by Interactive, Virtuous and Environmental Single-window Hub) portal, which has consolidated what was previously a more fragmented, paper-heavy process across MoEFCC, SEIAA, and other environmental approvals into a single online system.

Step-by-Step: Obtaining Environmental Clearance

Step 1: Confirm Your Category Before Finalising Site Design

Calculate the project’s built-up area (including basements and service areas) and check the site’s proximity to any protected area, eco-sensitive zone, critically polluted area, or inter-State boundary before finalising the design or FSI utilisation, since this determines whether the project needs a screening-only B2 process, a full B1 process, or falls under central Category A jurisdiction.

Step 2: File Form 1 and Form 1A Through PARIVESH

Submit the prescribed application, including project details, a conceptual site plan, and, for Category B2 projects, the supplementary Form 1A addressing construction-phase environmental parameters such as water demand, sewage treatment, solid waste management, and green cover.

Step 3: For B2 Projects, Await Screening

For a Category B2 building and construction project, the State Level Expert Appraisal Committee (SEAC) reviews the application at the screening stage without requiring a full EIA report or public hearing, and makes its recommendation to the SEIAA, which grants or declines the EC.

Step 4: For B1 (and Category A) Projects, Complete Scoping and the EIA Report

For a township, area development project, or any project elevated to Category A, the appropriate Expert Appraisal Committee issues Terms of Reference (ToR) specifying the baseline environmental data (air, water, and soil quality, typically monitored across a defined study area over multiple seasons) and impact categories to be studied, following which the project proponent commissions a detailed EIA report through an accredited consultant organisation.

Step 5: Conduct Public Consultation (Where Required)

Category A and B1 projects require public consultation, comprising both written comments and an on-site public hearing (with a minimum notice period before the hearing), through which affected communities and other stakeholders can raise concerns about the project’s environmental impact. Category B2 building and construction projects under Item 8(a), and the equivalent Item 8(b) provisions, are among the specific categories exempted from this public consultation requirement.

Step 6: Appraisal and Grant of EC

The relevant Expert Appraisal Committee (state-level SEAC for Category B, central-level EAC for Category A) undertakes a detailed appraisal of the application, and, where applicable, the EIA report and public consultation outcomes, before recommending grant, rejection, or conditional grant of the EC to the SEIAA or MoEFCC as appropriate. Where a State has not constituted a functioning SEIAA or SEAC, the default position under the EIA Notification is that the Category B project is instead appraised at the central level as if it were Category A.

Step 7: Comply with EC Conditions and File Post-Clearance Compliance Reports

An EC is granted subject to specific conditions, commonly relating to construction-phase dust and noise control, sewage treatment, rainwater harvesting, solid waste management, and green cover, and the project proponent is required to submit periodic post-clearance compliance reports (commonly every six months) confirming these conditions are being met.

Parallel Approvals Real Estate Developers Commonly Need Alongside EC

Environmental Clearance rarely travels alone. Depending on the project’s location and nature, developers should also consider:

• Coastal Regulation Zone (CRZ) Clearance, under the CRZ Notification, 2019, for any project located within the coastal regulation zone, which is a distinct clearance process from EC, though the two are often processed in parallel for coastal developments.
• Forest Clearance, under the Forest (Conservation) Act, 1980, where any part of the project, including an approach road, requires diversion of forest land, a clearance that is entirely separate from, and generally a precondition to, EC where applicable.
• Consent to Establish and Consent to Operate, under the Water (Prevention and Control of Pollution) Act, 1974 and the Air (Prevention and Control of Pollution) Act, 1981, obtained from the State Pollution Control Board, addressing construction-phase and operational discharge and emission standards.
• Groundwater Extraction NOC, from the Central Ground Water Authority (CGWA) or the relevant state groundwater authority, where the project proposes to draw groundwater for construction or operational use, particularly in over-exploited or critical groundwater zones.
• Tree Felling Permission, from the local forest or municipal authority, wherever the project site requires removal of existing trees, a permission that is procedurally distinct from Forest Clearance under the 1980 Act.

The Ex-Post-Facto Environmental Clearance Question: Where the Law Currently Stands

A genuinely unsettled area, and one every developer proceeding without a clearly established EC should track closely, is whether a project that begins construction without prior EC can later regularise its position through a retrospective, or “ex-post-facto,” clearance. The Supreme Court’s position on this has shifted materially over the past two years. In Alembic Pharmaceuticals Ltd v Rohit Prajapati (2020), the Court held that the concept of an ex-post-facto EC is fundamentally inconsistent with the precautionary principle underlying Indian environmental law. In May 2025, in litigation brought by Vanashakti, a two-judge Bench struck down the Central Government’s 2017 notification and 2021 Office Memorandum permitting retrospective clearances, holding ex-post-facto EC impermissible “in any form or manner.” That ruling was itself recalled by a 2:1 majority of a three-judge Bench in November 2025, which cited the potential economic and infrastructural disruption of enforcing the ban, including demolition of near-complete projects, and directed the matter be reheard. Following a fresh hearing, a three-judge Bench delivered what is, as of now, the most recent word on the issue on 29 July 2026, holding that no further applications may be entertained under the specific 2017 notification or 2021 OM mechanisms, while leaving open the possibility of a future, properly constituted statutory amnesty scheme enacted through delegated legislation under the Environment (Protection) Act, rather than through administrative circular. Given how actively this question continues to move, developers should treat the absence of prior EC as a serious and currently unresolved compliance risk, not as a gap that can be assumed fixable after the fact, and should take current advice before relying on any anticipated regularisation route.

Consequences of Proceeding Without Environmental Clearance

Constructing without a required EC exposes a project to intervention by the NGT, which has, in reported cases, ordered demolition of unauthorised construction, halted ongoing work pending compliance, and directed payment of environmental compensation. Separately, the Environment (Protection) Act, 1986, as amended by the Jan Vishwas (Amendment of Provisions) Act, 2023 with effect from 1 April 2024, replaced the earlier imprisonment-based penalty framework with a graded monetary penalty regime, adjudicated by designated Adjudicating Officers with appeal to the NGT, alongside continuing daily penalties for ongoing contraventions. Beyond direct regulatory exposure, the absence of a required EC can also block RERA registration for the project, prevent issuance of an occupancy certificate, and make the project considerably harder to finance or sell to institutional buyers who require clean environmental compliance as part of their own due diligence.

Practical Checklist for Developers

• Calculate built-up area conservatively at the design stage, including basements, service areas, and any open-to-sky activity areas that may be reckoned as covered area, since a marginal miscalculation can shift a project between the no-EC, B2, and B1 thresholds.
• Check proximity to sensitive features before finalising the site, not after, since the General Condition buffer can elevate an otherwise straightforward B2 project to full Category A central clearance.
• Sequence Forest Clearance and CRZ Clearance correctly where applicable, since these are separate approvals that can each independently delay, or be a precondition to, the grant of EC.
• Do not treat “we’ll regularise it later” as a viable fallback plan. Given the currently unsettled state of the law on ex-post-facto EC, proceeding without a required clearance should be treated as a serious, unresolved legal risk rather than a deferred compliance task.
• Build post-clearance compliance reporting into the project’s operating calendar from the outset, since failure to file periodic compliance reports is itself a common and avoidable source of regulatory scrutiny.

Two Hypothetical Scenarios

Scenario 1: A Mixed-Use Development Just Below the B1 Threshold

A developer plans a mixed-use residential and commercial project with a built-up area of 1,42,000 sq. m., comfortably within Category B2 under Item 8(a). Before finalising the site plan, the developer’s counsel checks the location against notified eco-sensitive zones and protected areas in the vicinity and confirms the site falls outside the relevant buffer distance. The project proceeds through the lighter B2 screening process before the SEIAA, without a full EIA report or public hearing, on a materially shorter timeline than a B1 project of similar scale would face.

Scenario 2: Construction Started Before EC Was Obtained

A developer, having secured all local building permissions, begins construction on a 35,000 sq. m. commercial complex without realising that Item 8(a) of the EIA Notification required prior EC given the built-up area involved. A third party files a complaint before the NGT once construction is visibly underway. Given the currently unsettled position on ex-post-facto EC following the ongoing Vanashakti litigation, the developer cannot assume a straightforward retrospective regularisation route is available, and instead urgently pursues a stop-work compliance strategy, engaging with the SEIAA to assess the project’s position and any available statutory route, while facing real exposure to NGT-ordered work stoppage and potential demolition pending resolution.

Conclusion

Environmental Clearance for real estate and construction projects in India is, on paper, a reasonably well-defined threshold exercise: calculate the built-up area, check the site’s location against sensitive features, and follow the corresponding B2, B1, or Category A process. In practice, developers most often go wrong not because the thresholds are unclear, but because built-up area is recalculated late, site sensitivity is checked as an afterthought, or a project quietly begins construction before EC is formally in hand, in the mistaken belief that this can always be tidied up later. Given the genuinely unsettled state of the law on retrospective clearance, that assumption has never been riskier than it is right now. The safest, and ultimately cheapest, approach remains the same one that applies across almost every area of Indian regulatory compliance: get the clearance before you break ground, not after.

Need Legal Advice?

For specialist advice on environmental clearance, NGT proceedings, and regulatory compliance for real estate and construction projects in India, contact Ujjwal Sharma MCIArb at Sharma Kemp Chambers.

Sources

1. Environment (Protection) Act, 1986, Government of India Legislative Department
2. Ministry of Environment, Forest and Climate Change, Environment Impact Assessment Notification, 2006 (S.O. 1533(E), dated 14 September 2006, as amended)
3. PARIVESH Portal, Ministry of Environment, Forest and Climate Change
4. Coastal Regulation Zone Notification, 2019, Ministry of Environment, Forest and Climate Change
5. Forest (Conservation) Act, 1980, Government of India Legislative Department
6. Supreme Court of India, Alembic Pharmaceuticals Ltd v Rohit Prajapati, (2020) INSC 326
7. Supreme Court of India, Vanashakti v Union of India, judgment dated 29 July 2026