If you've driven along Sarjapur Road since the start of 2026, you may have spotted survey teams with drilling equipment at scattered points along the corridor. That is not routine road maintenance. Something quiet but significant has been happening along Sarjapur Road since January 2026, as teams have been conducting geotechnical surveys — soil testing — at regular intervals along the corridor. These surveys mark the first real, visible, on-the-ground activity connected to Namma Metro Phase 3A — the 37 km Red Line that will eventually connect Sarjapur in the southeast to Hebbal in the north.
The project has had a long runway to reach this point. Namma Metro Red Line (Phase 3A) is a 36.59 km corridor connecting Sarjapur in south-east Bengaluru to Hebbal in the north, with 28 stations — 17 elevated and 11 underground — passing through Koramangala, NIMHANS, Dairy Circle, Town Hall, and Mekhri Circle. The Karnataka Cabinet approved the project on December 6, 2024, at a revised cost of ₹25,485 crore. That approval came after months of back-and-forth over cost. Concerns over the high cost of ₹776 crore per km — the highest for Namma Metro — put the project on hold, following which BMRCL appointed global consultancy Systra to review and optimise the DPR. Systra submitted its report in late 2025, leading to revisions in February 2026, and the updated DPR was resubmitted in April, with approval now expected by October; construction is now targeted to begin by May 2027.
On the ground, the route is designed to solve a real commute problem. Phase 3A's structural significance is that it directly connects North Bengaluru (Hebbal, the airport corridor) to East Bengaluru (Sarjapur, the tech corridor) via central employment nodes like Koramangala and Bellandur — a commute that currently requires either the ORR by road (60 to 90 minutes at peak) or an indirect metro routing, compressed by Phase 3A to 45-60 minutes via direct metro. Along the Sarjapur Road stretch specifically, the new route will include stations at Sarjapur, Kada Agrahara Road, Somapura, Dommasandra, Muthanallur Cross, Ambedkar Nagar, Kodathi Gate, Carmelram, Doddakannalli, Kaikondarahalli, Bellandur Gate, Ibbluru, Agara, and onward towards Koramangala, with a depot also planned at Sarjapur.
What remains pending is central funding clearance. The project is now awaiting Central Government approval, where the Union Cabinet holds a 50 per cent equity stake in Namma Metro, with central approval expected before end-2026, after which full construction will commence. Once construction is underway, operations are still several years out — estimated commissioning spans 2030 to 2033 across phased operational milestones.
For homebuyers, the more immediate question is what all this means for prices — and history on Sarjapur Road offers a fairly clear answer. On Sarjapur Road, prices rose approximately 22% between 2021 and 2023 on Phase 3A planning announcements alone — before a single tender was issued. Even now, ahead of central approval, properties within 800 metres of stations already command a 5–10% premium even before construction begins. Industry watchers expect the next jump to come the moment Delhi signs off. When the formal announcement drops, properties within 1–2 km of proposed stations will reprice by an estimated 8–15% almost immediately — a pattern seen when the Purple Line extension to Whitefield was confirmed.
Metro connectivity is only one thread in a larger infrastructure story on this corridor. As one property analyst put it, "the metro is not arriving alone. It is the final catalyst in a five-project infrastructure stack — PRR, STRR, SWIFT City, Kaveri water supply, and now Phase 3A — that has been assembling piece by piece since 2022." Water supply, once a genuine concern for the belt, has also improved: that concern has been substantially resolved, as the Kaveri Stage V project, operationalised in late 2024, connected 110 villages — including Varthur, Gunjur, and Balagere — to Bangalore's main river water network.
On current pricing, Sarjapur Road remains comparatively accessible for a corridor with this much upside. The corridor-wide multistorey apartment average sits around ₹11,350/sq.ft., with base rates from ₹6,500/sq.ft. at the outer end to ₹16,500/sq.ft. in the boutique luxury Kodathi–Sarjapur belt. Premium developers like Arvind SmartSpaces, Prestige, Brigade and Sobha are all active here, and the corridor has delivered 50–70% cumulative price appreciation over the last five years. Rental demand has kept pace too: gross rental yields along Sarjapur Road in 2026 typically range between 3.5% and 5.5%, with metro-anchored 2 BHK and compact 3 BHK units delivering the strongest yields at 4.5–5.5%.
For buyers deciding whether to act now or wait, the pattern from Bangalore's own metro history is instructive rather than a guarantee: most of the appreciation on a metro line tends to happen well before the trains actually start running. Sarjapur Road today sits at that in-between stage — approved on paper, surveyed on the ground, but still some years from operational trains. That gap is exactly where early-stage buyers on this corridor have historically found the best entry pricing, and Brigade's projects along Whitefield-Sarjapur Road put homebuyers within easy reach of the proposed alignment as it takes shape.
