The 2.9-km stretch from Kodambakkam Power House to Panagal Park will have three stations with 5.8 km of track to be laid (both upline and downline). Track laying work commences July 2026. Work on overhead equipment will begin simultaneously. The elevated corridor 4 from Poonamallee to Kodambakkam switches to underground at Panagal Park, which will be the first underground station in phase II. Panagal Park station requires nearly five entry/exit points to be built. Objective is to extend from the Poonamallee-Porur-Vadapalani stretch to Panagal Park by March 2027. Corridor 4 (Poonamallee to Light House via Porur) passes through Mullaithottam, Karayanchavadi, Kumananchavadi, Kattupakkam, Iyyapanthangal, Porur, Alapakkam, Valasaravakkam, Alwarthirunagar, Saligramam, Vadapalani, Kodambakkam Power House, Kodambakkam, Panagal Park, Nandanam, Boat Club, Alwarpet and Thirumayilai. When connected, T. Nagar residents will access phase I network. Primary near-term focus is launching the Poonamallee-Porur-Vadapalani stretch and completing elevated corridor 5 from Koyambedu to Chennai Trade Centre.

11. Cowndamani recovered a property in Kodambakkam on October 8, 2024, after an 18-year legal dispute with Sri Abhirami Foundation, a construction firm. The actor and his family purchased a plot of land on Arcot Road in Kodambakkam in 1996-97 and signed an agreement with Sri Abhirami Foundation to raise a commercial complex at ₹3.58 crore. The firm did not meet the completion deadline and kept seeking additional payments. In 2004, the company abandoned construction, and the family took possession. Sri Abhirami Foundation later forcibly re-entered and took possession. Cowndamani and family filed a civil suit in Madras High Court in 2006 seeking permanent injunction and recovery of possession with damages. The High Court on March 14, 2024, dismissed an appeal filed by the firm in 2021 against a single judge's 2019 order, directing the firm to hand over possession of five grounds and 454 sq.ft of land. The Supreme Court dismissed the firm's special leave petition in May 2024. On October 8, 2024, with bailiff and police protection, the property was recovered in accordance with court directions.

Greater Chennai Corporation Commissioner G.S. Sameeran said the storm-water drain where Kaliyamman Koil Street joins the Virugambakkam canal would be completed within two weeks. He inspected canal works in Kodambakkam zone costing an estimated ₹30 crore, including retaining walls, fencing and silt and waste removal. Chennai Metro Rail Limited is building a bridge across the canal for an estimated ₹12 crore; the existing bridge is being removed, and officials were instructed to complete the new bridge before the Northeast monsoon. The 6.70-km canal, 8–25 m wide, begins at Bhuvaneshwari Nagar in Virugambakkam, passes through Chinmaya Nagar, Saligramam and M.M.D.A. Colony, and joins the Cooum.

20. Nagar constituency includes Kodambakkam, Ashok Nagar, West Mambalam, Pondy Bazaar, C.I.T. Nagar portion, and Vadapalani. Within two years of pedestrianisation, commercial sales rose 15-20% and land value increased up to 20%. Residents cite severe infrastructure bottlenecks from rampant commercialisation. Rising plinth levels and unchecked encroachments increase pressure on sewer and stormwater networks of unchanged capacity, causing frequent overflows. Ambulances and fire tenders struggle to navigate narrow lanes. The newly constructed J. Anbazhagan flyover has done little to ease traffic. Multi-level Pondy Bazaar parking is often non-operational or at full capacity. Residents report uncleared garbage, poor roads, and poster proliferation. Stormwater drain construction on Arya Gowda Road felled trees but failed to prevent rainwater entry; homes suffered waterlogging in December 2023 downpour. MLA J. Karunanithi attributes parking issues to Metro Rail work and notes traffic reduction from online shopping shift. New flyover eases travel from Saidapet to T. Nagar, Kodambakkam, Nungambakkam. One-way traffic near North Usman Road-Bazulla Road signal planned. ₹3 crore annual MLACDS fund used for bus stand and community hall upgrades.

Nungambakkam and Duraisamy subways handle more than 1 lakh commuters daily and connect Nungambakkam, Kodambakkam and T Nagar with Choolaimedu, Aminjikarai and Anna Nagar. Water leaks persist even in dry weather, while eroded tar, damaged concrete, potholes and stagnant rainwater make travel risky. Greater Chennai Corporation says it will conduct a detailed study with IIT-Madras to identify the cause of the leakage. Residents say repairs have not begun; a Choolaimedu resident described the Nungambakkam subway as slippery and hazardous, particularly for motorcyclists.