Even though Mumbai’s real estate market commands the highest property prices in the country, nature has once again exposed one of the financial capital’s most enduring vulnerabilities: water security. For a metropolis grappling with rapid urbanisation, massive redevelopment and rising housing demand, the biggest hurdle to future growth may not be the availability of land but access to water.
Concerns over a delayed monsoon and depleting reservoir levels recently prompted the Brihanmumbai Municipal Corporation (BMC) to impose a 10% water cut, raising questions about whether the restrictions could disrupt construction activity and delay housing delivery in India’s financial capital.
For now, the industry appears largely untouched. Most developers say construction activity is not heavily dependent on potable water supplied by the BMC. Instead, projects increasingly rely on tanker supplies obtained from authorized vendors, including rapidly treated sewage water, recycled water and groundwater. This shift to alternative water sources means that there is unlikely to be immediate disruption to everyday construction operations.
However, the situation could become more challenging if restrictions continue. While leading developers have contingency measures in place, including recycled water systems and diverse sourcing arrangements, prolonged restrictions could gradually increase construction costs and slow execution timelines. The impact may be less visible in the short term, but extended water stress could test project economics and delivery schedules, particularly for smaller developers with limited access to alternative resources.
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What developers have to say about BMC’s water restrictions
Real estate developers, including listed developers, say the impact on ongoing projects is expected to be minimal in the short term. However, if rainfall is weak, water crisis will become common, and will not be limited to the construction area.
According to the developers, most of the construction is not heavily dependent on potable water supplied by the BMC. Instead, construction sites primarily treat tanker supplies obtained from authorized vendors, including sewage water, recycled water, and groundwater. As a result, everyday construction activities are largely insulated from municipal water restrictions.
Amit Jain, Chairman and Managing Director, Arcade Developers, said, “BMC’s current restrictions on water usage could pose challenges for the real estate sector, especially amid the ongoing pace of construction activity. Critical processes like concrete curing, landscaping and other construction works require consistent water supply, and any prolonged disruption could impact project timelines.”
“That said, many developers have contingency measures in place to mitigate the impact of such restrictions, including use of recycled water, water-efficient construction practices and procurement from authorized alternative sources. In the short term, the industry is not expected to face significant challenges. However, if the restrictions continue for an extended period, they could impact both project costs and delivery timelines,” Jain said.
“Water is one of the most essential resources for any city, supporting both daily life and ongoing development. While established developers are usually equipped with contingency measures including recycled water systems and alternative sourcing arrangements, prolonged restrictions may result in increased cost pressures and some reduction in execution velocity,” said Anuj Mehta, director of Dhulewa Group.
“Given the scale and sophistication of Mumbai’s development pipeline, the impact is expected to remain manageable in the immediate term and is unlikely to disrupt the overall construction pace,” Mehta said.
BMC’s control on water
Concerns resurfaced after the Brihanmumbai Municipal Corporation (BMC) imposed a 10% water cut across Mumbai last month, citing lower than desired water levels in seven reservoirs that supply drinking water to the city. Following this, the civic body last week extended restrictions on several categories of non-essential water use, including construction activitiesConcerns are being raised over the potential impact on project execution and housing delivery if the restrictions continue.
Mumbai’s dependence on reservoirs located outside the city limits has long made it vulnerable to fluctuations in rainfall. Rapid urbanization, large-scale redevelopment and increasing demand have increased the pressure on the city’s water resources.
As of June 19, the combined water stock in Mumbai’s seven lakes stood at 9.34% of the total capacity, compared to over 13% during the same period last year. In 2024, the reservoir level was above 5%.
The city draws most of its water from seven reservoirs: Bhatsa, Upper Vaitarna, Middle Vaitarna, Modak Sagar, Tansa, Vihar and Tulsi, which together supply about 3,800 million liters per day (MLD) to a population of over 12 million.
However, Mumbai’s daily water demand is estimated to exceed 4,200 MLD, the shortfall of which is met by government and private water tankers and other supplementary sources.
There may be some relief on the horizon. Light rain occurred in several parts of South Mumbai and eastern suburbs on June 21, while the India Meteorological Department (IMD) issued a yellow alert for the city till June 24. According to media reports, IMD officials have been quoted as saying that intermittent rain is expected in the next few days. possibility of monsoon arrival In Mumbai around 23rd June.
Mumbai has enough water till 17th August
BMC Municipal Commissioner Ashwini Bhide had told reporters last week that Mumbai has adequate drinking water supply till August 17.
Bhide said that BMC implemented 10 percent water cut from May 15, 2026. Based on the current stock position, the available water can sustain the supply till August 17.
According to Bhide, the impact on the real estate sector is minimal. “The real estate sector is not heavily dependent on municipal water supply, so the impact on construction activity is expected to be minimal,” he told Mid-Day.
Population growth is putting pressure on Mumbai’s water infrastructure
According to experts, the current situation serves as a reminder that infrastructure planning must evolve along with real estate development. Experts said future urban planning should focus not only on creating new housing stock but also on strengthening the infrastructure needed to support it.
“Mumbai’s water challenge is not just about rainfall or reservoir levels. The city receives adequate rainfall, but the real issue is the creation of adequate storage capacity and disposal management. Over the years, Maharashtra has developed an extensive network of dams, reservoirs and pipelines to supply water to Mumbai. However, the city’s population is continuously growing, putting pressure on the available resources,” said Madhav Chitale, water resources expert and former committee chairman of the Action Plan for Greater Mumbai.
“Fortunately, the hinterland around Mumbai generally receives adequate rainfall, and the existing reservoirs should not face serious stress in normal monsoon conditions. The bigger concern is what happens to the water after it is consumed. Treatment, recycling and safe disposal of waste water should be the top priority. As our living standards have improved, per capita water consumption has also increased. While the traditional planning norm is about 80 liters per person per day, consumption levels are continuously increasing. and is currently about 150 litres, which could rise substantially to 250 liters in the coming decades, Chitale said.
According to Chitale, Mumbai should prepare for a future where the demand for water is much higher than today.
“This will require not only expanding storage capacity and strengthening water infrastructure, but also improving rainwater harvesting and conservation measures. Existing rules may need to be refined to encourage better harvesting and storage of rainwater in residential and commercial developments,” Chitale said.
“At the same time, urban planning cannot be separated from water planning. The increasing population density puts additional pressure on water supplies in the Mumbai city limits. The long-term solution lies in distributing development more evenly across the metropolitan area rather than concentrating it in a few parts. While desalination, the process of converting seawater into drinking water, is an option, it remains an expensive source of water. Given Maharashtra’s rainfall patterns and the availability of inland water sources, the first focus should be on improving storage. “We need to increase the capacity of our dams to conserve, recycle and distribute,” Chitale said.
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What is BMC doing to increase drinking water supply?
To address frequent water shortages, Mumbai is working on a seawater desalination project on the lines of cities like Dubai, Singapore and Tel Aviv, which are heavily dependent on desalinated water for drinking.
BMC has awarded a contract to Israel-based water technology company IDE Technologies to develop a desalination plant in Manori, Mumbai. The project will initially convert 200 million liters of seawater into potable water per day, with the capacity to be expanded to 400 MLD. Once fully operational, it is expected to supply 10% of Mumbai’s water requirement.
Apart from converting sea water into drinking water, BMC is working on the Gargai and Pinjal dam projects in Palghar district near Mumbai. The Gargai Dam is expected to add about 440 million liters per day (MLD) to the city’s water supply, while the proposed Pinjal project could contribute about 865 MLD. According to BMC officials, these projects aim to meet the increasing demand of Mumbai’s growing population and reduce dependence on existing reservoirs.
