Blue Line Metro: Silk Board-Airport Corridor & Its Property Impact

Bengaluru's most-awaited metro corridor is finally taking shape. The Blue Line forms part of Phase 2A and Phase 2B and is designed to connect Central Silk Board with Kempegowda International Airport via KR Puram, Hebbal and Nagawara, giving Bengaluru its first direct metro connection to the airport while also linking several of the city's largest IT and commercial hubs. Interchanges with the Yellow, Purple and Pink Lines will make it one of the network's busiest corridors.

The scale of the project is significant. The 58.19-km corridor will run from Central Silk Board to Kempegowda International Airport, creating a seamless north-south transit link, developed in two phases: Phase 2A connecting Silk Board to KR Puram, and Phase 2B extending from KR Puram to the airport. The corridor will house a total of 29 stations, 13 on the 19.75 km Phase 2A and 16 on the 38.44 km Phase 2B. As of now, Phase 2A (Silk Board-KR Puram, ORR section) targets late 2026, with depot connectivity delays potentially pushing it to 2027, while Phase 2B (airport extension to KIA) is now targeted for December 2027.

For South Bangalore, the immediate corridor matters most. The first phase, from the Central Silk Board to KR Puram, is expected to be ready by the end of 2026, covering around 17.75 km with 13 stations and connecting key areas including HSR Layout, Bellandur, ISRO, and Marathahalli. In South Bengaluru, Central Silk Board, HSR Layout, Bellandur, and nearby employment districts could witness stronger rental demand as commuting improves for technology professionals.

The price signals are already visible in the market. Property prices in Bengaluru's metro corridors are experiencing a 15-30% increase before construction work is finished, and the upcoming metro lines will generate property value increases of 20-30%, with rental income growth of 10-15% expected after the project ends. Established residential pockets like HSR Layout and Silk Board have reached their development limit, so existing properties will see rental demand rise as metro connectivity offers tenants higher-price benefits. Notably, demand for properties in Bengaluru reaches its highest point for spaces which lie between 500 to 800 meters from metro stations.

Real estate experts are largely bullish on the corridor. Real estate experts say the Blue Line will boost growth in areas such as Silk Board, HSR Layout, Bellandur, and Marathahalli. Established residential zones like HSR Layout and Silk Board are also set to benefit, particularly in the rental segment, with homes located within walking distance of metro stations expected to command higher demand and better returns.

The ripple effect extends beyond the immediate corridor into adjoining South Bangalore micro-markets along Hosur Road and Bannerghatta Road, where Mahindra Lifespaces already has an established residential footprint. These pockets sit within easy reach of Silk Board and HSR Layout, and stand to benefit indirectly as commute times to the ORR IT belt and the airport shrink once the line is operational. Developer confidence in this belt is visible in Mahindra's continued South Bengaluru launches, including its newest project near Hosur Road, positioned close to Electronic City, HSR Layout, and BTM Layout.

For homebuyers, the takeaway is straightforward: the Blue Line is not yet operational, so today's prices still reflect pre-metro valuations in several stretches. For investors and new-age buyers planning to buy in 2026, early-stage booking prices are narrowing, and as BMRCL moves towards trial runs on Phase 2A from Silk Board to KR Puram, prices are expected to rise by 10 to 15% once the line is started. Buying ahead of commissioning, particularly in well-connected South Bangalore micro-markets, remains the window for value-conscious homebuyers.