Monte South Commercial

About Monte South Commercial

Monte South Commercial is the office and premium retail component of the Monte South mixed-use campus in Byculla, South Mumbai. Marathon, the Mumbai developer founded in 1969, is developing it, and the project is at the Upcoming stage with no launch date or per square foot rate announced yet. Buyers searching Adani Monte South will find the residential towers on the same campus, which are already selling. The commercial tower is expected to bring Grade-A offices and premium retail to a corridor that has long been defined by its residential character.

The wider campus spans roughly 25 lakh sq ft on 12.5 acres of the former Khatau Mills land, combining four 64-storey residential towers with a single commercial tower. The commercial component alone is about 12 lakh sq ft under development, with an estimated gross development value of Rs 3,400 crore.

Key Highlights

• One commercial tower of about 12 lakh sq ft, sitting inside a 12.5-acre campus on the Khatau Mills compound.
• Positioned as Grade-A offices and premium retail zones, with the developer citing efficient floor plates as a core differentiator.
• Part of a live-work-and-work ecosystem, alongside four residential towers of 64 floors each on the same campus.
• Estimated gross development value of Rs 3,400 crore for the commercial component.
• Marathon's stated experience comes from Futurex in Lower Parel, where commercial units range from 800 sq ft to 2 lakh sq ft.
• Expected completion of the commercial tower in four to five years from November 2026, which places it around 2030 to 2031.

Location Advantages

The campus sits near the Y Bridge in Byculla West, with the postal code 400008. Dr. B.A. Road links Byculla with the Eastern Express Highway, and the campus gives access to the Eastern Freeway, which is the quickest route to Lower Parel, BKC and Fort. For a business district that has grown dense and expensive over two decades, that road access is the project's most practical advantage.

Byculla railway station is the nearest rail point. Mahalaxmi station on the Western Line is about 1 km away, and the Harbour Line station is listed at around 3 km. Metro Line 3 is listed as an upcoming connection for the area.

The honest caveat is construction. The Y Bridge and its planned 892-metre flyover towards Mazgaon are still under way, and buyers should expect dust, diversions and congestion in the surrounding streets until those works finish. The bridge project's stated aim is to cut CSMT to Byculla travel to under 10 minutes, from 30 to 45 minutes at present, but that is a target rather than a measured outcome.

Location Map — available on request

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What's Nearby — Schools, Hospitals, Malls

The Lower Parel business district is the obvious commute for office occupiers, reached over the Eastern Freeway. Christ Church lies about 700 metres from the campus, which gives the immediate neighbourhood a quiet, established character that most new commercial towers in the island city lack.

Amenities

The developer describes the commercial tower only as offering world-class amenities designed for modern businesses, and no specific list has been published for the office floors. Buyers can look to the residential towers on the campus for a sense of the standard Marathon is working to, which includes a massive clubhouse, an infinity swimming pool, a gym and spa, a private podium beach, a tennis court, football and cricket turfs, an indoor games room, a yoga and meditation zone, and co-working lounges.

Price & Configuration

Marathon's Futurex in Lower Parel offers commercial units from 800 sq ft to 2 lakh sq ft, which gives a rough sense of the range the developer has worked with in South Mumbai.

For context on the price band, the locality is priced differently depending on the measure. Byculla's average stood at Rs 48,200 per sq ft as on September 2026, while Byculla West, the micro-locality around the campus, averaged Rs 45,000 per sq ft in the April to June 2026 quarter. The residential towers on the campus are asking a median of about Rs 46,007 per sq ft across listings, and Piramal Aranya nearby is priced at around Rs 52,400 per sq ft.

Master / Floor Plan — available on request

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Investment Analysis

• Price against the locality: Byculla averages about Rs 48,200 per sq ft, but its year-on-year movement is flat at 0.1 per cent, so the locality has not been a fast appreciator recently.
• Recent momentum: Byculla West rose 20.8 per cent over the last year, which suggests the immediate neighbourhood around the campus is moving faster than the wider locality.
• Rental yield: Byculla yields about 4 per cent, while Byculla West is closer to 2 per cent, a gap that matters for office-led returns.
• Budget comparisons: Ruparel Vivanza offers 2 BHK homes at Rs 2.75 to 2.82 crore, and Piramal Aranya sits at around Rs 52,400 per sq ft. Both are residential, so they frame the price band rather than offer a like-for-like office comparison.
• Timing risk: With the commercial tower expected in four to five years, returns are a long-horizon proposition, and any rental income will depend on how Grade-A office demand in Byculla develops once the Y Bridge and Metro 11 are operational.

Pros and Cons

Pros

• A large Grade-A office component inside an established South Mumbai campus, with direct road access to Lower Parel and Fort.
• A developer with a delivery track record in Mumbai, including the Monte South residential Tower A, which has received its full occupation certificate.
• Public infrastructure coming through the area, including Metro 11, the Y Bridge and the Mahalaxmi skywalk.
• The developer reports no debt in FY26 and the first half of FY27, and completed a Rs 900 crore QIP in mid-2025.

Cons

• No price, launch date or booking window has been announced, so buyers cannot yet compare it against the locality on a per square foot basis.
• The commercial tower is four to five years from completion, which delays any rental return and leaves the project exposed to shifts in office demand.
• The Adani Realty stake buyout that will take Marathon to full ownership was approved on 31 October 2026 but is still pending completion.
• Byculla West rental yields near 2 per cent are thin for an investor relying on rent, and road works around the Y Bridge will affect access in the near term.

Who Should Buy This

Ideal for: investors with a long horizon who want Grade-A office space in South Mumbai, and businesses that can plan a relocation around a 2030 to 2031 handover. Developers' long-term occupiers may also value the live-work setting alongside the residential towers.

Not ideal for: buyers who need possession within a few years or depend on rental income in the short term.

Upcoming Infrastructure

• Metro 11 (Wadala to CSMT): a 16 km underground line at a planned cost of Rs 16,000 crore, expected to be operational around 2030 and to serve Byculla, Fort and Gateway of India.
• Byculla Y Bridge: a Rs 287 crore cable-stayed bridge under construction, with the BMC targeting completion by December 2026.
• Mahalaxmi multimodal skywalk: nearing completion, linking Mahalaxmi station, Metro Line 3 and the monorail.
• Metro Line 3 (Colaba to Bandra to SEEPZ): operating in phases, with Byculla listed as an upcoming connection.
• Two MMRDA ring roads: about 307 km combined and planned, which would ease cross-city movement once built.

About the Developer

Marathon was founded in 1969 by Ramniklal Zaverbhai Shah and operates through Marathon Nextgen Realty Limited, listed on BSE and NSE. The group has completed more than 100 projects in Mumbai, housed over 10,000 families and holds about 418 acres of land across the Mumbai Metropolitan Region. Notable delivered projects include Marathon Nexzone in Panvel, where over 2,500 homes have received occupation certificates, Neosquare in Bhandup, and Futurex in Lower Parel, which has partial occupation certificates up to the 38th floor.

Launch & Possession Timeline

• October 2025: Marathon and Adani Realty announced the joint venture for the 12 lakh sq ft commercial project at Byculla, with the project named Monte South Commercial in Marathon's release on 27 October 2025.
• 31 October 2026: Marathon's board approved the acquisition of Adani Group's 60 per cent stake for about Rs 335 crore, which would lift its ownership to 100 per cent on completion.
• 4 November 2026: In its Q2 FY27 results, management said the commercial tower is yet to launch and expected to be completed in four to five years, around 2030 to 2031.

FAQ — Frequently Asked Questions

Q: Is Monte South Commercial RERA registered?

A: The residential towers on the Monte South campus are registered separately with MahaRERA, and the commercial tower has not yet been put on sale, so buyers should check the registration details when sales open.

Q: What is the possession date for Monte South Commercial?

A: The developer expects the commercial tower to be completed in four to five years from November 2026, which places it around 2030 to 2031, and no fixed date has been set.

Q: What is the price range for Monte South Commercial?

A: The price per square foot has not been announced for the commercial component, and as of September 2026 Byculla's average is Rs 48,200 per sq ft.

Q: Is Marathon a reliable builder?

A: Marathon has been building in Mumbai since 1969 and has completed more than 100 projects in the city, including the Monte South residential Tower A, which has received its full occupation certificate.

Q: What is the nearest metro to Monte South Commercial?

A: Byculla railway station is the nearest rail link, Mahalaxmi station on the Western Line is about 1 km away.

Q: Is Monte South Commercial a good investment?

A: It offers long-horizon exposure to Grade-A office space in South Mumbai, but with a four to five year wait for completion and rental yields near 2 per cent in Byculla West, returns depend on patience and on infrastructure arriving on schedule.

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