Koramangala Locality Guide: Blocks, Planned Red Line Metro and Buyer Checks

Koramangala is one of the best-known residential and office localities in Bangalore, and it still has no metro station of its own. This guide describes the layout and its blocks, the metro lines around it, the planned Red Line that would run through it and the kinds of homes that come up for sale. It also lists the checks that matter in an older locality where most purchases are resale.

Where Koramangala Is

Koramangala is in the south-east of the city, between Hosur Road on the west and the Inner Ring Road on the east. Sarjapur Road runs along its southern side, and HSR Layout and BTM Layout are just beyond. The Inner Ring Road connects it with Domlur and Indiranagar to the north.

The locality was formed by the Bangalore Development Authority as a planned layout of eight blocks. Wide roads such as 80 Feet Road and 100 Feet Road divide the blocks, and each block has its own parks and civic sites. St John's Medical College Hospital, a large mall and several colleges are within the layout or at its edge.

Blocks and Their Character

The eight blocks share a name but differ in feel. The broad pattern is this:

• The 1st and 2nd Blocks, near Hosur Road and Jakkasandra, are close to colleges and have many apartments and rented homes
• The 3rd Block is the quietest and most expensive, with large plots, independent houses and tree-lined roads
• The 4th Block has a mix of houses and apartments and includes low ground that floods in heavy rain
• The 5th to 8th Blocks carry most of the restaurants, shops and offices, with homes on the inner roads

Many start-ups began in rented houses and small office buildings in the 5th to 7th Blocks, and offices remain a large part of the area. That brings jobs within walking distance and also brings traffic, parking pressure and commercial use on residential roads. A buyer who wants quiet should visit the exact road on a weekday evening and on a Saturday night.

Metro Around Koramangala Today

Koramangala has no operational metro station inside the layout. Residents travel by road to stations on the lines around it. The position in October 2026 is this:

• The Yellow Line has run since August 2025, and its Central Silk Board and BTM Layout stations are the nearest to the southern blocks
• The Purple Line at Indiranagar is reached by the Inner Ring Road
• The Pink Line is under construction, and its underground Dairy Circle station is beyond the western edge of the layout
• The Blue Line along the Outer Ring Road is under construction, with stations at Central Silk Board and HSR Layout

Each of these is a ride of a few kilometres from most homes in the layout. The gap matters most at peak hours, when the short trip to a station takes as long as the train journey that follows.

The Planned Red Line

The Red Line, also called Phase 3A, is the corridor planned from Sarjapur to Hebbal. It is 37.8 km long in the plan revised in February 2026. The plan the state approved had 28 stations, of which 17 are elevated and 11 are underground. The Karnataka Cabinet approved it on 6 December 2024.

The line is planned to follow Sarjapur Road to Agara and then go underground through Koramangala towards the city centre. The planned stations in and next to the layout are these:

• Jakkasandra
• Koramangala 3rd Block
• Koramangala 2nd Block
• Dairy Circle, an interchange with the Pink Line

The project was awaiting approval from the Government of India in October 2026. The BMRCL sent a revised project report to the central government in April 2026, after a review of the cost. Published targets place construction between 2027 and 2033, and both dates depend on that approval and on funding.

What the Red Line Means for a Buyer

A new line helps most where demand already exists, and Koramangala has had strong demand for decades. Homes in the layout hold their value because of the offices, colleges, hospitals and central location. The Red Line would add a direct station to an area that already works well.

Three points keep the metro in proportion. The line has no central approval yet, and metro projects in Bangalore have often opened years after their first target. Underground station work would also mean several years of barricades and diversions on roads near the station sites. A purchase in Koramangala is best justified by what the locality offers today, with the metro counted as a later gain.

Homes That Come Up for Sale

Koramangala is largely built up, so most purchases are resale. Independent houses on BDA sites, builder floors and apartments in older complexes make up most of the stock. New projects are few, and they are usually small, premium buildings on redeveloped plots or on former industrial land near Hosur Road.

Prices per sq ft are among the higher ones in the city, and they vary widely by block, road width and the age of the building. The registration cost is stamp duty of 5.6% above Rs. 45 Lakhs, with cess and surcharge included, plus a 2% registration fee. Current listings are on our page for apartments in Koramangala.

Roads, Flooding and Daily Life

Traffic is the main daily cost of living in Koramangala. The junctions on Hosur Road, the Inner Ring Road and Sarjapur Road are slow at peak hours. The 2.38 km Ejipura elevated corridor, meant to ease the Inner Ring Road stretch, has been under construction since 2017 and has missed several deadlines.

Parts of the layout are on low ground along a storm water drain valley. Roads in the 4th Block and near the valley have flooded in heavy rain in several years. A ground-floor home or a building with basement parking in these pockets needs a look at its flood history and the level of the plot against the road.

Checks Before Buying

These checks suit an older BDA layout where the building and its papers matter as much as the address:

1. Trace the title from the BDA allotment and the absolute sale deed to the present owner, with the e-khata in the seller's name.
2. Compare the building with its sanctioned plan, and ask for the occupancy certificate of an apartment building.
3. Check the age and condition of the structure, the lift, the water lines and the parking allotted to the flat.
4. Ask neighbours about flooding on the road and about commercial tenants in the building or next door.
5. Confirm Cauvery water and sewer connections and the last paid property tax receipt.
6. Note the distance to the planned Red Line stations, and keep the price tied to present access.