Residential Redevelopment, Nigadi

A residential redevelopment on a plot of 1,040 sq m in Nigadi, with 6,420 sq m of construction: a building of a basement, a ground floor, eight upper floors and a terrace with apartments from one to three bedrooms, a society office, a recreation floor, stack parking, and five shops at the ground floor and mezzanine, beside a 12 m road. The water statement of December 2025 counts 44 flats and the load sheet of February 2026 counts 51 (41 single-phase and 10 three-phase), as the plan was refined. Services had to fit in a basement already full of parking bays - the tanks, a fire pump room, a septic tank, sumps and a ventilation route - and the pumps and the charging points had to be counted in the power.

Electrical: the load sheet of 27 February 2026 follows the distribution company's guidelines of 14 November 2025 at 75 W per sq m for apartments and 150 W for shops: 225 kW for the building, 35 kW of shops, 26 kW of pumps, 30 kW of ventilation and pressurization, 61 kW for stack parking, the recreation floor, refuge-floor and landscape lighting, and 103 kW of charging, for 481 kW in all, 235 kW after diversity, 261 kVA and 313 kVA with a 20% margin - a 315 kVA oil-filled indoor transformer, with 59 connections (41 single-phase, 15 three-phase and 3 common). Charging is provided for 20% of the parking: 11 four-wheeler chargers of 7.2 kW and 8 two-wheeler chargers of 3.5 kW. Water: 220 residents at 135 litres a head need 29.7 kLD, and the shops 3.8 kLD; underground storage of 24 kL domestic, 8 kL raw, 9 kL drinking, 12 kL flushing and 50 kL fire water (set by the PCMC norm) and overhead tanks of 19 kL domestic, 5 kL drinking, 12 kL flushing and 20 kL fire. A 30 kLD sewage plant (26.7 kLD of sewage) returns 23.8 kLD, 9.9 kLD of it for flushing, and a septic tank was drawn in June and July 2026. Pumps: 70 HP hydrant and 70 HP sprinkler pumps of 2,280 litres a minute at 80 m, a 10 HP jockey, a 12 HP terrace booster and the filling and dewatering pumps. Basement: a storm sump of 2.0 x 2.0 x 1.2 m with a duplex submersible pump, a sub-soil drain of 110 and 160 mm perforated pipes under the raft, and a fire-water sump of 17 cubic metres. We issued the external services layout in December 2025 and revised it to May 2026, the tank and sub-soil layouts in September 2026 and the tank sleeve details on 1 October 2026.