Marathon Moves Toward Full Control of Monte South in Byculla

Marathon Plans Monte South Tower D in Byculla, Mumbai

Marathon has moved to take full control of the Monte South project in Byculla, one of the few remaining large mill land parcels in South Mumbai. On 31 October 2026 the company's board approved the purchase of Adani Group's 60% interest for about Rs 335 crore. Marathon's stake in the development would rise from 40% to 100% once the deal completes. Tower D, one of four residential towers planned on the site, is slated for launch in FY29 at an estimated gross development value of Rs 1,800 crore.

The deal is moving quickly. By 4 November 2026, Rs 200 crore of the consideration had been paid, and completion is expected within the same quarter. On the company's Q2 FY27 call, management said about 800 of the 1,800 planned apartments across Monte South have already sold, and the project recorded roughly Rs 146 crore of sales in the quarter, including the monsoon months. Tower A has received its full occupation certificate, which gives buyers a finished reference point in the same complex.

What the Byculla Project Means for Homebuyers

For anyone weighing a purchase, the first number to keep in view is the management estimate of an average value of about Rs 40,000 per sq ft across the whole Monte South project. This is a project-wide figure, not a price list for Tower D, and it should be read that way. Byculla's average apartment rate, by contrast, sits near Rs 47,150 per sq ft on a carpet area basis for April to June 2026. The two figures measure different things, so a direct comparison needs care, but they do suggest that the project is being positioned at a pricing level that the locality's wider market can support.

Tower D's own pricing, payment structure and configuration will be set when it launches. Buyers should note that the launched towers in the wider project, Towers A to C, offer 2, 2.5, 3 and 3.5 BHK homes, and that the project's luxury amenities include a clubhouse, a fully equipped gymnasium and an infinity-edge swimming pool. Management has cited a pool on the 65th floor of Tower A as part of that offering.

Who should act and who should wait? A buyer who needs a home within the next two years is unlikely to find Tower D a fit, given the FY29 launch target. An investor with a longer horizon, however, may find the locality's fundamentals more persuasive. Recent market data points to a rise of about 19% in Byculla prices over the past year, a five-year change of about 12.3%, and average rental yields of roughly 4%. Those are respectable numbers for South Mumbai, though they should be weighed against the long timelines that come with a project of this scale.

Why This Deal Matters for the Locality

The Monte South site is a 12.5-acre freehold parcel on the former Khatau Mills land, near Y Bridge and next to the Byculla Fire Brigade. The developer's own description places it close to SoBo, and that location is the core of its appeal. Land of this size is rare in South Mumbai, and the fact that one owner will now hold the whole development simplifies decision-making on phasing, the commercial tower and the remaining residential towers.

Transport is improving at the same time. A new cable-stayed bridge costing Rs 287 crore is being built to replace the century-old Y-bridge. It will be 916 metres long with four lanes, and it is targeted for completion in December 2026. Once it opens, travel from CSMT to Byculla is expected to fall to under 10 minutes, down from the 30 to 45 minutes commuters face at present. The Wadala to CSMT underground Metro 11 line, about 16 km long, has been rerouted to include Byculla and is expected to be operational around 2030. A feasibility study is also underway to convert Byculla into an underground suburban station on the Central Railway corridor, though its final alignment has not been settled.

The honest counterpoint is competition. The South Mumbai luxury segment is crowded, and projects of this kind carry long execution timelines. Tower D's launch depends on approvals, land conversion and planning, and management has said timing is not set quarter by quarter. Buyers should treat the FY29 target as a plan rather than a fixed date.

What to Expect Next

The next few months will show whether the acquisition closes on schedule. Completion of the Adani stake purchase is expected in the quarter that began in November 2026. Through the same period, the Byculla Y-bridge is targeted for completion in December 2026, which would be the first visible change in the area's commute. The commercial component of Monte South is planned for FY28 at an estimated value of Rs 3,400 crore, and Tower D's launch is planned for FY29. Watch for the Tower D price list and payment plan when they are released, as they will set the real benchmark for the project's luxury positioning.

Related Projects and Areas Affected

• Monte South Towers A to C, Byculla: The launched towers in the same project, with Tower A receiving full occupation and Tower B holding an occupation certificate up to the 45th floor.
• Byculla Y-bridge replacement: The Rs 287 crore cable-stayed bridge that will cut CSMT to Byculla travel times once open.
• Metro 11, Wadala to CSMT: The underground line with a rerouted path through Byculla, expected around 2030.
• Mahalaxmi and Lower Parel: The nearest Metro 3 interchanges cited for the Monte South site, which will benefit from better corridor connectivity.

Comparable Projects by the Same Developer

The Developer and the Locality

Marathon traces its roots to 1969, when Ramniklal Zaverbhai Shah founded the group. The Marathon Group says it has completed over 100 projects in Mumbai, and its listed arm, Marathon Nextgen Realty Ltd, reports more than 2.2 million sq ft under construction. Its cities and land banks span Lower Parel, Byculla, Mulund, Bhandup, Thane, Dombivli and Panvel within the Mumbai Metropolitan Region. For FY26 the company reported revenue of Rs 639 crore and profit after tax of Rs 206 crore. In the quarter ended 30 September 2026, revenue reached Rs 145 crore and profit after tax Rs 45 crore. The company is net debt-free with positive net cash as of 30 September 2026, a position that gives it room to complete the Adani stake purchase without stretching its balance sheet.

Byculla itself has been changing quietly. Its position between the established business districts of South Mumbai and the rail corridors to the north gives it steady rental demand, and the infrastructure now under way adds a second layer of appeal. Buyers who understand the trade-offs between long timelines and central location will find the area one of the more interesting South Mumbai options in the current cycle.

Frequently Asked Questions

Q: Who is building Monte South Tower D?
Marathon is the developer. On 31 October 2026, its board approved buying Adani Group's 60% interest in the Monte South project for about Rs 335 crore, which would take its stake from 40% to 100%.

Q: Can I book a home in Tower D now?
Tower D has not been launched, and bookings are not yet open. The company has planned its launch for FY29, so interested buyers should track the developer's launch announcements.

Q: What is the estimated value of Tower D and the wider project?
Management estimates Tower D's gross development value at Rs 1,800 crore. Across the whole Monte South project, the average value is put at about Rs 40,000 per sq ft, which is a project-wide estimate rather than a Tower D price.

Q: How far is Monte South from transport links?
The site sits near Byculla railway station on the Central Railway corridor and is close to Mahalaxmi and Lower Parel on Metro Line 3. The Y-bridge replacement is expected to cut CSMT to Byculla travel to under 10 minutes once it opens.

Q: Is Byculla a good place to invest in property?
Byculla's average apartment rate is about Rs 47,150 per sq ft on a carpet area basis for April to June 2026, with average rental yields of around 4%. Investors should weigh these returns against the long execution timelines common to South Mumbai luxury projects.

Full project details: Monte South Tower D