Home / Browse projects / Thane, Maharashtra / WINDSOR TOWER B
WINDSOR TOWER B
By GRANDBUILD LAND DEVELOPERS LLP
RG-MH-82217 · RERA P51700081067 · Last updated on MahaRERA portal: 20 Jul 2026
Source: official MahaRERA filing
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Red flags
- Litigation declared, 1 case
Clear
- No complaints on record
- Completion date never moved
- No encumbrance on the project land
- Separate project account declared
- Allotment letter follows the model form
1 condition is on this record. What each one means for someone buying here, and what the promoter's own filed documents say behind it, is what the buyer report adds.
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WINDSOR TOWER B is a Others project by GRANDBUILD LAND DEVELOPERS LLP in Thane, Maharashtra, registered with MahaRERA as P51700081067 on 11 Dec 2025. Possession is promised by 31 Mar 2032. 0 of the 264 units on this registration are recorded sold or booked, and 1 of 11 construction stages are filed complete.
At a glance
Project
- NameWINDSOR TOWER B
- TypeOthers
- Location
- MAHESHWARI BHAVAN ROAD
- BHAYANDER WEST
- BHAYANDAR
- Thane
- 400101
- Pincode400101
- MapView location on Google Maps (as filed on RERA)
- RERA no.P51700081067
- ReraGenie IDRG-MH-82217
Builder
- NameGRANDBUILD LAND DEVELOPERS LLP
- Entity typePartnership
- GSTIN27AALFG6202H1ZH
- PartnersASHISH GIRDHARILAL VAID, GOPALJI KRISHNAMURARI DWIVEDI
- Other registrations2 more →
Key dates
Key facts
Registration and timeline
- StatusRegistered
- Registered on11 Dec 2025
- Promised completion31 Mar 2032
- Revised completionNone
- Buildings1 building record
- Documents filed106 files
Current status
Figures as on 20 Jul 2026, this project's latest MahaRERA filing.
Buildings and wings, as sanctioned
| Building | Wing | Floors sanctioned | Habitable floors | Residential units | Other units | Total |
|---|---|---|---|---|---|---|
| WINDSOR TOWER B | NA | 39 | 34 | 257 | 7 | 264 |
The full filing
Everything below is from the project's own MahaRERA filing, free to read. The Rs 499 buyer report reads the filed documents themselves and puts the findings in plain language.
Construction progress by building1
As on 20 Jul 2026, the date of the latest filing. The RERA activity checklist for each building, from the promoter's latest quarterly progress filing. These are the promoter's own figures, not an independent inspection.
1 of 11 construction stages are filed complete. The stage furthest along is Plinth, at 25%.
WINDSOR TOWER B: 11% average across the applicable activities
| Activity | Progress |
|---|---|
| Excavation | 100% |
| Basement (if any) | 0% |
| Podiums (if any) | 0% |
| Plinth | 25% |
| Stilt Floor | 0% |
| Slabs of Super Structure | 0% |
| Internal walls, Intemal Plaster, Floorings, Floors and windows within Flats/Premises | 0% |
| Sanitary Fittings within the flats / premises | 0% |
| Staircases, Lifts Wells and Lobbies at each Floor level Overhead and Underground Water Tanks | 0% |
| External plumbing and external plaster, elevation, completion of terraces with waterproofing of the Building / wing. | 0% |
| Installation of Lifts, water pumps, Fire Fighting Fittings and Equipment as per CFO NOC, Electrical fittings, mechanical equipment, compliance to conditions ofenvironment/CRZ NOC, Finishing to entrance lobby/s, plinth protection. paving of areas appurtenant to Building/Wing, Compound Wall and all other requirements as may be required to complete project as per specifications in agreement of Sale. | 0% |
Progress on shared amenities15
As on 20 Jul 2026, the date of the latest filing. Lifts, roads, water and the other shared works, from the same quarterly filing, and reported by the promoter rather than inspected.
| Common facility | Proposed | Progress |
|---|---|---|
| Internal Roads & Footpaths | Yes | 0% |
| Water Supply | Yes | 0% |
| Sewerage (Chamber, Lines, Septic Tank , STP) | Yes | 0% |
| Storm Water Drains | Yes | 0% |
| Landscaping & Tree Planting | Yes | 0% |
| Street Lighting | No | Not applicable |
| Community Buildings | No | Not applicable |
| Treatment And Disposal Of Sewage And Sullage Water | Yes | 0% |
| Solid Waste Management And Disposal | Yes | 0% |
| Water conservation /Rain water harvesting | Yes | 0% |
| Energy managemcnt | Yes | 0% |
| Fire protection and fire safety requirements | Yes | 0% |
| Electrical meter room, sub-station, receiving station | Yes | 0% |
| Aggregate area of recreational Open Space | Yes | 0% |
| Open Parking | Yes | 0% |
Parking filed264
Slots recorded per building wing in the filing. MahaRERA does not publish a two wheeler or four wheeler split, visitor parking, or the sanctioned allotment, so this is provision as filed and not a comparison against the approved plan.
Land and ownership2
MahaRERA does not publish landowner contact details. Declared none is the promoter's own declaration to the regulator, not a title search. A search at the sub-registrar is what confirms it.
| Landowner | Village | District |
|---|---|---|
| MR. SHYAMSUNDER RADHESHYAM AGARWAL | Mumbai City | Mumbai City |
| MR. RAMCHANDRA VAISHNAV | Mumbai City | Mumbai City |
Approvals and building plan
Project account and cost
70 percent of buyer money must sit in the project account. Account numbers are not published by MahaRERA, so check that your agreement for sale names a designated account for this project and pay into that account only.
| Building | Wing | Estimated | Incurred |
|---|---|---|---|
| WINDSOR TOWER B | NA | Rs 121.32 cr | Rs 5.38 cr |
Certifying professionals and partners3
Form 1, 2 and 3 certificates from these professionals release the promoter's withdrawals from the 70 percent account.
| Role | Name |
|---|---|
| Architect | CONNECTFOUR DESIGN STUDIO LLP |
| Engineer | SACHIN S SHIRKE |
| Chartered Accountant | ARCHANA PARIKH |
| Partner | Role in project |
|---|---|
| GRANDBUILD LAND DEVELOPERS LLP | - |
Litigation declared1
| Case | Court | Status |
|---|---|---|
| 5348/2026 | HIGH COURT OF JUDICATURE BOMBAY | Ongoing |
Complaints filed with MahaRERA
No complaints on record against this registration.
The permission chain
The permissions a project needs, in the order they happen, matched to MahaRERA's own document slots. A slot on the file means the promoter uploaded a document there; it is not proof the permission was granted, and the filing carries no issue dates. An empty slot is not proof an approval is missing.
- Legal title reportOn the file
A lawyer's report on who owns the land and what is registered against it.
uploaded 1 Dec 2025 - Layout approvalOn the file
The planning authority's approval of how the plots and buildings sit on the land.
uploaded 8 Apr 2025 - Building plan approvalOn the file
Sanction of the building plans themselves, filed as an IOD in Mumbai and as a plan approval elsewhere.
uploaded 7 Nov 2025 - Commencement CertificateOn the file
Permission to begin construction. On a plotted development the same slot carries the NA order instead.
uploaded 17 Sep 2025Confirm the Commencement Certificate covers the specific floor you are buying. - Occupancy CertificateNot due yet
The legal go-ahead to move in. It comes at the end, so its absence on a project still under construction is expected.
possession is promised for 31 Mar 2032
Documents filed106
As listed on the registration, named by the MahaRERA slot each file was filed under, with the promoter's own file name beneath; the newest 80 of 106 are shown. The files themselves are available at source: open this registration on the MahaRERA portal. We publish what the filing says and never host the promoter's documents in place of it.
| Document | Uploaded |
|---|---|
| Withdrawal Update Form 1File: Architect Certificate Tower B.pdf | 20 Jul 2026 |
| Withdrawal Update Form 2File: Engineer Cert_Ws_Tower B.pdf | 20 Jul 2026 |
| Withdrawal Update Form 3File: CA Certificate_Tower_B_.pdf | 20 Jul 2026 |
| Form 2A (FY 2025-2026)File: Form 2A_Windsor_Tower_B.pdf | 25 Jun 2026 |
| Form 1File: Arch Cert_TOWER B.pdf | 20 Apr 2026 |
| Form 2File: Eng Cert_Tower B.pdf | 20 Apr 2026 |
| Form 3File: CA Certificate_Tower_B_V1 - Revised_1.pdf | 20 Apr 2026 |
| Disclosure of Sold and Booked InventoryFile: Soldunsold_Tower B.pdf | 20 Apr 2026 |
| Form 1File: WS Arch Cert_Tower B.pdf | 20 Apr 2026 |
| Form 2File: Engg Cert_Tower B.pdf | 20 Apr 2026 |
| Form 3File: CA Certificate_Tower_B_V1 - Revised_1.pdf | 20 Apr 2026 |
| Disclosure of Sold and Booked InventoryFile: Tower B - Sold Unsold.pdf | 20 Apr 2026 |
| Copy of the legal title reportFile: Title Report.pdf | 1 Dec 2025 |
| Other - LegalFile: PR Card - 1.pdf | 1 Dec 2025 |
| Other - LegalFile: PR Card - 2.pdf | 1 Dec 2025 |
| Other - LegalFile: PR Card - 3.pdf | 1 Dec 2025 |
| Other - LegalFile: PR Card - 4.pdf | 1 Dec 2025 |
| Other - LegalFile: Other Legal - Document.pdf | 1 Dec 2025 |
| Other - LegalFile: Legal Documents List.pdf | 1 Dec 2025 |
| Other - FinanceFile: Bank Decalration - Other finance.pdf | 1 Dec 2025 |
| Other - TechnicalFile: Other Technical.pdf | 10 Nov 2025 |
| Building plan approvalFile: Page 6.pdf | 7 Nov 2025 |
| Building plan approvalFile: Page 5.pdf | 7 Nov 2025 |
| Building Plan Approval / NA Order for plotted developmentFile: Page 5.pdf | 7 Nov 2025 |
| Building Plan Approval / NA Order for plotted developmentFile: Page 6.pdf | 7 Nov 2025 |
| Letter from the bank regarding the opening of RERA Designated Bank Accounts (Format B)File: Format B.pdf | 7 Nov 2025 |
| Other - LegalFile: Deed of Confirmation.pdf | 6 Oct 2025 |
| Other - TechnicalFile: DECLARATION OF CC.pdf | 6 Oct 2025 |
| Other - FinanceFile: Bank declaration.pdf | 4 Oct 2025 |
| Commencement Certificates / NA Order for plotted developmentFile: Commencement Certificate.pdf | 17 Sep 2025 |
| CA Certificate on Project Cost & Fund withdrawal (Form 3)File: Tower B - CA Certificate.pdf | 22 May 2025 |
| Declaration about all RERA Designated Bank Accounts (Format A)File: Format A - Promoter - Tower B.pdf | 12 May 2025 |
| Disclosure of Interest in Other Real Estate OrganizationsFile: 1 Disclosure of Interest in Other Real Estate Organizations.pdf | 12 May 2025 |
| Other - TechnicalFile: cc verification screenshot.pdf | 9 Apr 2025 |
| Layout approvalFile: Layout 1st page.pdf | 8 Apr 2025 |
| Building plan approvalFile: Page 2.pdf | 8 Apr 2025 |
| Building plan approvalFile: Page 3.pdf | 8 Apr 2025 |
| Building plan approvalFile: page 4.pdf | 8 Apr 2025 |
| Building plan approvalFile: Wing B 8_11zon.pdf | 8 Apr 2025 |
| Copy of Layout Approval (in case of layout)File: Layout 1st page.pdf | 8 Apr 2025 |
| Declaration in FORM BFile: GRBLLP Form B Tower B.pdf | 8 Apr 2025 |
| Building Plan Approval / NA Order for plotted developmentFile: Wing B 8_11zon.pdf | 8 Apr 2025 |
| Building Plan Approval / NA Order for plotted developmentFile: page 4.pdf | 8 Apr 2025 |
| Building Plan Approval / NA Order for plotted developmentFile: Page 3.pdf | 8 Apr 2025 |
| Building Plan Approval / NA Order for plotted developmentFile: Page 2.pdf | 8 Apr 2025 |
| Other - TechnicalFile: ORDER NO 50.pdf | 8 Apr 2025 |
| Proforma of Agreement for saleFile: Agreement for sale.pdf | 8 Apr 2025 |
| Proforma of Allotment letterFile: Allotment Letter_Tower B.pdf | 3 Apr 2025 |
| PAN CardFile: 1 PAN Card (6).pdf | 31 Mar 2025 |
| Details of encumbrances concerned to FinanceFile: ENCUMBRANCE MERGED.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 1.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 10.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 9.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 8.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 7.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 6.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 5_11zon.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 4.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 3.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 2.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 1.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 10.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 9.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 8.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 2.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 3.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 4.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 1.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 2.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 3.pdf | 31 Mar 2025 |
| Other - LegalFile: Release Deed Radhaswami 4.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Rectification - 6.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 1.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 2.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 3.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 4.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 5.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 6.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 7.pdf | 31 Mar 2025 |
| Other - LegalFile: Deed of Confirmation - 8.pdf | 31 Mar 2025 |
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Buyer report
Built from this project's filings on the day you order, in plain language.
- 1 condition on this project's record read and explained, with the clear checks alongside
- Joined against the promoter's 2 other registrations and every project registered within 2 km, which the RERA portal never shows together
- All 106 filed documents as one ZIP, foldered, with a manifest
- The project watch below, included free for 90 days
Project watch
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- An email each time this filing moves: new sales, a moved possession date, an extension, a complaint, the occupancy certificate
- Plain words, conditions that have happened marked in red
- A summary of everything that changed when the 90 days end
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Builder: GRANDBUILD LAND DEVELOPERS LLP
GRANDBUILD LAND DEVELOPERS LLP has 3 registrations on MahaRERA, including WINDSOR TOWER A and WINDSOR TOWER C. Its filings disclose no earlier MahaRERA projects. Litigation is declared on 3 of its registrations. Read the full track record. See more projects on the Thane district page.
Frequently asked questions
What are my rights if WINDSOR TOWER B is delayed beyond 31 Mar 2032?
Under section 18 of the RERA Act you may stay in the project and claim interest for every month of delay, or exit and claim a full refund with interest. In Maharashtra the rate is SBI's highest MCLR plus 2 percent, currently 10.90% per annum (June 2026). The free delay interest calculator on ReraGenie puts a rupee figure on any delay. Claims are filed as MahaRERA complaints with a Rs 5,000 fee.
How do I verify and contact the developer of WINDSOR TOWER B?
The registered promoter entity is GRANDBUILD LAND DEVELOPERS LLP, a partnership as per the filing. Its GSTIN 27AALFG6202H1ZH can be cross-checked on the MCA and GST portals. Your agreement for sale must name this exact entity, not a group brand name. The promoter's registered address and contact details are on the project's MahaRERA listing (scan the QR code on any advertisement) and in its filed documents. The Rs 499 buyer report includes all of them as a single ZIP, foldered by type.
Is my payment protected in WINDSOR TOWER B?
Partly, by law. 70 percent of every buyer payment must go into the project's designated bank account, withdrawable only against architect, engineer and CA certificates as construction progresses; since July 2024 MahaRERA requires a three-account structure for collections. Separately, a promoter cannot take more than 10 percent of the price before signing a registered agreement for sale (section 13). Neither rule guarantees completion; they limit how far your money can travel from the project.
How current is the construction progress shown for WINDSOR TOWER B?
Promoters must file a quarterly progress report within 20 days of each quarter end, certified by the architect (Form 1), engineer (Form 2) and chartered accountant (Form 3). The figures above come from the latest filing, so they can trail the site by up to a quarter. A promoter who stops filing QPRs altogether invites penalties under section 61, and a stale filing date is itself a warning sign worth checking on the portal.
Who certifies construction progress at WINDSOR TOWER B?
The professionals named in the filing: Architect: CONNECTFOUR DESIGN STUDIO LLP; Engineer: SACHIN S SHIRKE; Chartered Accountant: ARCHANA PARIKH. Their Form 1 (architect), Form 2 (engineer) and Form 3 (chartered accountant) certificates are what unlock the promoter's withdrawals from the 70 percent account, so their names on record are part of the project's accountability chain.
What should I check before booking in WINDSOR TOWER B?
Four things this page cannot decide for you: that the carpet area in your agreement matches the filed carpet area (the model agreement allows only a 3 percent variation, with a refund right below that); that the agreement follows MahaRERA's model clauses with deviations highlighted; how the declared litigation on this registration affects your risk; whether construction progress keeps pace with sales in the coming quarters. The Rs 499 buyer report works through all of them from the filings.
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