Chennai Metro Rail Limited reported a major Corridor 4 tunnelling milestone in February 2026: the Eagle tunnel boring machine completed a 1,981-metre drive from Light House to the Thirumayilai shaft. CMRL says Phase 2 covers 118.9 kilometres across three corridors with 128 stations.
The official release also records the launch of the Pelican tunnel boring machine from Panagal Park towards Boat Club. These are construction milestones, not an announcement that every station or section is open for passengers. Renters should check the latest commissioning status directly with CMRL before paying a premium for a proposed station.
Why this matters to a house hunt: Corridor 4 links areas around Light House, Mylapore, T Nagar, Kodambakkam, Porur and Poonamallee. A future station can change a commute, but the practical value depends on walking distance, last-mile transport and the date a section actually begins public service.
Before choosing a rental, visit during peak hours and time the complete trip from the building entrance. Ask whether the route depends on an operating line or a section still under construction. Check noise, road diversions and access after dark. Then compare the rent with similar homes farther from the proposed station.
Tamizhoo uses the official CMRL release as the primary source for project facts. ChennaiRentals.one does not predict rent increases or promise completion dates. This explainer is intended to help renters ask better questions and verify transport claims.