Akshay Enterprises Realty LLP, Vashi

A redevelopment of an existing housing society in Vashi, Navi Mumbai, by Akshay Enterprises Realty LLP, with 112,350 sq m of construction on a 5,570 sq m plot. Three towers rise over three basements, a ground floor and ten podium levels of parking: wings A and B to the 34th floor and wing C to the 38th, with four lifts in each. Of the 263 flats, 160 three-bedroom homes in wings A and B go back to the society's members and 103 - one- to four-bedroom flats, most of them in wing C - are for sale. Thirty-four shops line the ground floor, and 280 sq m on the first and second floors is handed to the municipal corporation. Building this much on a plot this size means the whole service plant - transformers, DG sets, tanks, sewage treatment and fire water for three tall towers - has to fit below and around them, and the environmental clearance needs every figure worked out. The architecture is the architect's; our scope is the EC data and the MEPF design.

We prepared the water and the energy calculations in March 2026, with the external MEP services, solar, street lighting and lightning arrester layouts. Power: each flat at 75 W per sq m and each shop at 150 W, with the lifts, pumps, 130 kW of ventilation, staircase pressurisation and EV charging, add up to 3,959 kW connected and 2,180 kW of maximum demand, supplied through four 630 kVA transformers, with DG sets of 500 and 750 kVA and 57 EV charging points for 20% of the car parking. Energy: 242 rooftop panels of 540 W - 130.8 kW - generate about 196 MWh a year; solar collectors heat 19,725 litres of water a day, 75 for each flat; timers on the common and street lighting and V3F drives on the lifts and pumps save the rest - together about 615 MWh a year. Water: 1,646 people need about 200 kL a day; a 180 KLD sewage plant treats the 173 kL of sewage and sends 65.8 kL a day back for flushing and 4.9 kL to the landscape, the surplus going to the municipal drain. Storage: underground tanks of 128 kL for domestic water, 66 kL for flushing and 150 kL for fire, with domestic and flushing tanks on each tower's terrace and a 200 kL fire-break tank in every tower, as the fire service's October 2025 circular asks. Fire: 175 HP hydrant and sprinkler pumps and a 10 HP jockey pump.