For years, Sarjapur Road has grown into one of Bangalore's busiest IT and residential corridors without the one thing its bigger sister, Whitefield, already has: a metro line. That gap is finally starting to close. The Namma Metro Red Line, officially Phase 3A, is a 37.8 km corridor linking Hebbal in the north to Sarjapur in the southeast, and it has quietly become one of the most closely watched infrastructure stories for homebuyers along this stretch of road.
The project's approval journey has been a long one. On 4 March 2022, during a budget speech by the state government, a new corridor spanning 35 km from Hebbal to Sarjapura was announced, to be taken up as Phase 3A. Bangalore Metro's Phase 3A was approved by Karnataka Government's Cabinet on December 6, 2024 and is now awaiting Government of India's approval. Since then, the project has gone through a cost optimisation exercise that has meaningfully changed its shape and price tag.
The latest and most significant update comes from a Deccan Herald report this month. Bengaluru Metro's 37.8-km Phase 3A linking Hebbal and Sarjapur Road is now expected to open in 2033 after cost optimisation, alignment changes and station revisions reduced the project cost to Rs 25,999 crore. Following a review by multinational consultancy Systra, a revised DPR was submitted in February 2026 and sent to the Centre in April, with the Centre's approval expected this October. Interestingly, while the underground section has been trimmed by 160 metres, the overall line has expanded by 1.215 km, from 36.58 km to 37.8 km.
What does the Red Line actually offer once built? The 28 planned stations on the Hebbal-Sarjapur Red Line include Hebbal, Ganganagar, Veterinary College, Mekhri Circle, Golf Club, Palace Guttahalli, Basaveshwara Circle, KR Circle, Town Hall, Shantinagar, NIMHANS, Dairy Circle, Koramangala 2nd Block, Koramangala 3rd Block, Jakkasandra, Agara, Ibballur, Bellandur Gate, Kaikondrahalli, Doddakannalli, Carmelaram, Agrahara Road, and Sarjapur. Crucially, this line is being built as the most interconnected in the network. Crucial interchanges include Ibbalur and Agara connecting to the under-construction Blue Line for rapid Outer Ring Road transit, Dairy Circle connecting to the Pink Line for direct access to central business districts, and Hebbal connecting to the Blue Line for airport travel and the upcoming Orange Line. A depot is also planned along the corridor. The depot will be located at Sarjapur, serving as the operational hub for the entire line.
For commuters, the practical benefit is real time savings. Currently, the commute between North and East Bengaluru requires either ORR via road taking 60 to 90 minutes, or an indirect metro routing through the central city; Phase 3A compresses it to 45 to 60 minutes via direct metro. That is a meaningful change for anyone commuting between Sarjapur Road's IT campuses and the airport corridor or the central business district.
On the ground, activity has already begun, even ahead of formal central sanction. Something quiet but significant has been happening along Sarjapur Road since January 2026, with teams conducting geotechnical surveys — soil testing — at regular intervals along the corridor. Earlier tender activity backs this up: geotechnical tenders worth ₹6.86 crore have already been floated for preliminary work.
So what about the price impact? Data suggests the corridor is already pricing in some of this expectation. Sarjapur Road's current Rs 12,150 per sqft average, per 99acres April 2026 data, is up 84.1% over three years, already pricing in Phase 3A speculation. History offers a useful reference point from elsewhere in the city. The Whitefield Phase 1 metro analogue is instructive: sanctioned in 2017 and operational by 2023, the corridor saw two distinct pricing legs — 15 to 25% in the 24 months following central sanction, and another 25 to 35% in the 24 to 36 months following operational commissioning. If Sarjapur Road follows a similar pattern once Union Cabinet sanction comes through, both early and later entrants stand to benefit, though at different points in the cycle.
It's worth being realistic about timelines, though. Construction hasn't started yet, and delays are common with projects of this scale. Construction delays are common in metro projects of this scale, and the multi-year development window accounts for land acquisition, environmental clearances, and technical challenges specific to the Sarjapur Road terrain. For homebuyers, this is a corridor story that plays out over years, not months — the kind of infrastructure-linked appreciation that rewards patience rather than quick flips. Brigade has an established presence on this very stretch, including Brigade Sanctuary on Whitefield-Sarjapur Road, giving buyers a way to be part of this corridor's growth story today, well ahead of the metro's eventual arrival.
