Thane is the most vertical major market in Maharashtra. It is also ringed by more restricted zones than any other city in UDCPR, and several of them cap development at a scale the city has long since left behind.
Key takeaways
- Regulation 10.0 applies city specific rules notwithstanding anything else in UDCPR, so inside Thane Municipal Corporation limits Chapter 10 is read before the general chapters.
- A 100 m green belt around hazardous chemical industries permits repairs to existing authorised structures only, and beyond it a 150 m low density zone caps FSI at 0.5 with ground plus two storeys.
- No construction is permitted within 100 m of the Air Force Station Thane boundary, including underground work, though beyond that zone the regulation states no NOC is needed.
- No building may be constructed within 7.5 m of the Eastern Express Highway boundary or of any road prescribed wider than 52.5 m.
- On ReraGenie's registry copy captured 11 August 2026, 31 percent of Thane district projects filing floor counts declare a tallest building of 17 floors or more, and the 90th percentile is 31 floors.
Chapter 10 comes first
Chapter 10, Regulation 10.0, UDCPR as updated 30 January 2025 is the sentence that orders everything else: notwithstanding anything contained in these regulations, the city and authority specific regulations apply to the respective Planning Authorities and areas. Inside Thane Municipal Corporation, Chapter 10, Regulation 10.2, Thane Municipal Corporation area* displaces the general chapters wherever the two differ.
Thane's entry is unusually long. Where Pune has four sub-regulations, Thane has fifteen, covering road setbacks, restricted zones, two green zones, redevelopment, podiums and parking. This article takes the ones that decide whether a parcel is developable at all, and at what scale.
How tall Thane actually builds
Before the restrictions, the baseline. UDCPR measures height in metres and MahaRERA files floors, so these are not compliance counts, but they establish what the market does.
Source: ReraGenie analysis of the MahaRERA project registry, 7,446 of 7,536 published Thane district projects filing building floor counts, captured 11 August 2026
Thirty one percent of Thane projects that file floor counts declare a tallest building of 17 floors or more, and 16.5 percent reach 25 or more. The 90th percentile is 31 floors. For comparison, Pune reaches 17 or more on 15 percent of its projects, Nagpur 9 percent, Nashik 3.4 percent and Kolhapur 1.7 percent. Only the Navi Mumbai Municipal Corporation nodes build taller, at 59 percent.
That is the context for what follows. A city whose upper decile builds past 30 floors has pockets where the regulation permits ground plus two.
The same caution as every city article in this series. Regulation 10.2 governs the Thane Municipal Corporation area, while MahaRERA records district and taluka rather than planning authority. Of these 7,536 district projects, 2,678 are in Thane taluka, with 2,117 in Kalyan and 1,636 in Ambarnath, covering KDMC, other corporations and Regional Plan areas that 10.2 does not reach. Read the chart as market scale, not as a count of affected projects.
The hazardous industry belts
Chapter 10, Regulation 10.2.4, UDCPR as updated 30 January 2025 is the most consequential provision in Thane's chapter, because it does not restrict height or setback. It restricts development itself, in two concentric belts.
Banded by distance from the industry boundary
- 0 to 100 mGreen belt. Existing authorised structures are tolerated and only repairs are allowed. No reconstruction and no new construction.Unauthorised structures are to be removed or relocated by the Corporation
- 100 to 250 mLow density zone. FSI of 0.5, and only ground plus two storey structures.
- beyond 250 mProposals are scrutinised and permission granted under the general UDCPR provisions
Source: Chapter 10, Regulation 10.2.4, UDCPR as updated 30 January 2025
Three details decide what this means for a specific parcel.
Private land in the green belt gets TDR. The cost of acquiring land for the green belt is borne by the industry or industry association, and the private land owner is given Transferable Development Rights based on FSI for the present land usage. The regulation is explicit that the acquisition cost borne by the industry is exclusive of the value of the TDR.
Approved schemes in the low density zone are treated by stage. Buildings already authorised at a higher FSI, with plans approved and a Commencement Certificate issued, are allowed to continue, be completed and receive an Occupation Certificate. Where plans were approved but no Commencement Certificate was issued, the permission is to be reviewed and revised in line with the low density regulation. The CC is the dividing line.
The belts are not permanent. On certification by the Director of Industries, the Director of Industrial Safety and Health or the competent authority that the chemical industry has permanently closed or shifted, both the 100 m green belt and the 150 m low density belt around that plot cease to exist automatically. The regulation uses the words suo-moto.
That last clause is the one worth diarising. A parcel sitting at FSI 0.5 today because it lies 180 m from a chemical plant is a different parcel the day that plant is certified closed, and the regulation makes the change automatic rather than discretionary. The trigger is a certification, so it is checkable.
The air force zone, and where it stops
Chapter 10, Regulation 10.2.5 records that Air Force Station Thane falls within a 100 m restriction zone under the Ministry of Defence notification SRO No.4 dated 13 January 2010, published in the Gazette of 23 January 2010.
Inside that 100 m, measured from the outer parapet of the Air Force boundary, no construction is permitted. The restriction is broader than buildings: live hedges, rows or clumps of trees and orchards may not be maintained, planted, added to or altered, and it applies equally to underground structures, with no digging or change in ground level permitted.
The second limb is the useful one commercially. Beyond the notified 100 m zone, the regulation states that no restriction is required to be imposed under the Works of Defence Act 1903, and that no NOC from Air Force Station Thane is necessary. A regulation that says plainly where a clearance stops being required is rarer than it should be.
Chapter 10, Regulation 10.2.6 adds separate height restrictions around a defence establishment at Kolshet, Kavesar and Waghbil, varying by direction from the unit, under a 2006 notification.
Roads: one highway rule and two street rules
Banded by road
- 7.5 mNo construction within 7.5 m of the boundary of the Eastern Express Highway, or of any other road with a prescribed width more than 52.5 mRegulation 10.2.2
- 3.05 m then 4.5 mOn plots fronting Ram Maruti Road, only the ground floor is set back 3.05 m from the road line and the remaining floors 4.5 m. The front terrace so formed may be accessible.Regulation 10.2.1(i)
- 2.3 m then 4.5 mOn plots fronting Gokhale Road between Ashok Talkies and the M.G. Road junction, the ground floor is set back 2.3 m and upper floors 4.5 m, subject to the owner paving the front open space.Regulation 10.2.1(ii)
Source: Chapter 10, Regulations 10.2.1 and 10.2.2, UDCPR as updated 30 January 2025
The Ram Maruti and Gokhale Road rules produce a deliberate arcade form: a shallower ground floor set behind a deeper upper mass, with the resulting terrace usable. That is a streetscape instruction written as a setback.
Parking as an FSI instrument
Chapter 10, Regulation 10.2.3 is the one provision in Thane's chapter that gives something back. A multi storey public parking lot on a plot abutting a road of at least 18.0 m, handed over to the Corporation free of cost with the amenities the Commissioner prescribes, earns incentive FSI.
The terms, in brief: a minimum plot of 1,000 sq m in sectors 1, 2 and 3 and 2,000 sq m elsewhere; not fewer than 50 public parking spaces; parking located in up to two basement levels, the ground floor, or a maximum of two upper floors. The incentive FSI is 50 percent of the built up area of the parking lot, over and above the base FSI, but capped so that total permissible FSI does not exceed the limit in Regulation 6.3. Area under parking is not counted towards FSI consumption, and the owner is not permitted to operate the lot.
A premium applies, and the formula is worth reading in the regulation rather than paraphrase: 60 percent of the value of the additional built up area at ASR rates, less the cost of constructing the parking lot, any extra amenities and the built up area corresponding to the incentive FSI.
Redevelopment, which is most of Thane's pipeline
Chapter 10, Regulation 10.2.15 relaxes a margin that otherwise blocks small plot redevelopment. For redevelopment of plots up to 1,500 sq m with a multi storey building up to 24.0 m height plus up to 6.0 m of parking height, the side and rear margin of 6.0 m is relaxed to 3.0 m, subject to a Fire NOC, in cases of bonafide hardship. Such a building is not to be treated as a special building. Other provisions of Regulation 6.2.3 continue to apply.
Thane's chapter also carries separate provisions on redevelopment of old dilapidated and dangerous buildings, height for redevelopment and SRA proposals, podiums, front marginal distances in congested areas, and off street parking for redevelopment projects. Anyone working a redevelopment scheme in TMC should read 10.2.10 through 10.2.15 together rather than relying on the general chapters.
What to check for a Thane parcel
- Confirm the authority. 10.2 governs the Thane Municipal Corporation area. KDMC, Mira-Bhayandar, Ulhasnagar and the Regional Plan areas around them are separate, and who signs your development permission sets out the six cases.
- Test the parcel against the three restricted zones before pricing anything: hazardous industry belts, the air force zone, and the Kolshet area defence restrictions.
- If it is in a low density belt, establish the industry's status. A certification of closure or relocation ends both belts automatically.
- Check the highway and wide road setback under Chapter 10, Regulation 10.2.2.
- For redevelopment, read 10.2.10 to 10.2.15 before the general chapters.
Where the filings come in
The regulation says what may be built. The register says what has been, and in a redevelopment market that record is the more useful half. ReraGenie's project analysis, Rs 2,999 for one project, reads a Thane project's full MahaRERA filing: the promoter's extension history with their stated reasons, the slip between original and current completion dates against the median for the same pincode, construction progress against the eleven activity checklist building by building, and complaints and litigation with case numbers. The area consolidated report covers a whole micro-market at Rs 2,999 for the first project and Rs 1,999 per additional one.
Every Thane project's filing is free to read at reragenie.com/areas/thane-maharashtra, and the question that comes before all of this is which rulebook governs your plot.
Source: Unified Development Control and Promotion Regulations for Maharashtra, UDCPR as updated 30 January 2025. Sanctioned under the Maharashtra Regional and Town Planning Act, 1966.
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