Satellite Town Ring Road (STRR): Sections, Status and Buyer Checks

The Satellite Town Ring Road, or STRR, is the outermost ring planned around Bangalore, linking the towns that surround the city without passing through it. Part of it carries traffic today, part is being finished and a large part is still at the tender stage. This guide sets out the route, the status of each section as of October 2026 and the checks for anyone buying a plot or a home on the strength of the road.

What the STRR Is

The STRR is an access-controlled national highway of about 280.8 km, built by the National Highways Authority of India (NHAI) under the Bharatmala programme. It carries the number NH 948A on the new alignment, and its northern and eastern stretch follows the realigned NH 648, the old NH 207. The road has four to six lanes and a design speed of 100 km per hour.

The purpose of the road is to let trucks and long-distance traffic move between the highways around Bangalore without entering the city. It crosses the main radial highways on its way, including Tumkur Road, Bellary Road, Old Madras Road and Hosur Road. The route connects 12 towns around the city:

• North: Dobbaspet, Doddaballapura, Devanahalli and Sulibele
• East and south-east: Hoskote, Sarjapura, Attibele and Anekal
• South and west: Tattekere, Kanakapura, Ramanagara and Magadi

A part of the south-eastern stretch runs through Tamil Nadu, on the outskirts of Hosur, before it returns to Karnataka. The STRR is also separate from the Peripheral Ring Road, now called the Bengaluru Business Corridor, which is a state project much closer to the city.

Section-by-Section Status in October 2026

The ring is being built in sections, and each one is at a different stage. A buyer needs the status of the section nearest the property, since the progress of the ring as a whole says little about it. The table gives the position, and the notes below explain each row.

Dobbaspet to Hoskote: open

The 80 km northern arc from Dobbaspet on Tumkur Road to Hoskote on Old Madras Road was inaugurated on 11 March 2024. It was built in two packages, with four lanes up to the Doddaballapura bypass and six lanes from there to Hoskote. Toll is collected on both packages, and the arc passes Devanahalli on its way east.

Hoskote to the Tamil Nadu border: the pending link

The 20.9 km stretch south of Hoskote was first due in February 2025 and has missed several dates since. Most of the road is built. The remaining gap of about 650 metres holds a rail overbridge across the Bengaluru to Chennai railway line at Lingadeeramallasandra, made of two 54-metre bowstring girders.

In June 2026, South Western Railway approved the drawing needed to launch the girders. The launch was to follow a speed inspection by the Research Designs and Standards Organisation of the railways. The opening depends on that launch, so the current position of this stretch is worth confirming with the NHAI before relying on it.

Tamil Nadu, Bannerghatta and the western stretch

The section through Tamil Nadu, from the state border to Belagondapalli near Hosur, has been awarded to a contractor. Beyond it, the route returns to Karnataka and passes the edge of Bannerghatta National Park. This stretch is waiting for environmental clearance, and the plan includes an elevated road of 8.1 km through the park area.

The western stretch from Ramanagara through Magadi back to the Dobbaspet side is at the tender stage. The NHAI invited bids in September 2024 for five packages totalling about 144 km across the western and Bannerghatta stretches, at an estimated Rs. 4,750 crore. Opening dates for these parts of the ring are still to be fixed.

What the Road Changes for Each Belt

The STRR helps cross-region travel more than the daily trip into the city. Its effect therefore differs from one belt to the next:

• Devanahalli and Doddaballapura: the open arc gives a signal-free link from Tumkur Road and Old Madras Road to the airport belt
• Hoskote: the town is at the junction of the STRR, Old Madras Road and the Bengaluru-Chennai Expressway, which supports warehousing and industry
• Sarjapura, Attibele and Anekal: the benefit begins when the Hoskote link and the Tamil Nadu section open
• Kanakapura, Ramanagara and Magadi: the road is a long-term plan, with these stretches still at the tender stage

A ring road this far outside the city does little to shorten an office commute to Whitefield or the Outer Ring Road. Its value is in logistics, industrial jobs and travel between satellite towns. Housing demand near it grows over years, as those jobs arrive.

Checks for Buyers Near the STRR

Much of the land sold along the ring is plotted development, where the road is a central part of the sales pitch. These checks separate what exists from what is promised:

1. Identify the section nearest the property and its status from the table above.
2. Measure the drive to the nearest entry point, since an access-controlled road is entered only at interchanges.
3. Check the layout approval from the planning authority for that area, the conversion order for the land and the RERA registration.
4. Confirm the khata type and the title papers, which a road cannot repair.
5. Add the toll to the cost of any regular trip on the road.
6. Compare the price with similar approved layouts further from the alignment.
7. Value the property on the roads in use today, and treat the unbuilt sections as a possible gain.

The northern arc of the STRR is a working road, and buyers there are paying for something they can drive on. On the eastern link the remaining work is small, yet the date has slipped before. In the south and west, the ring is a plan, and a price that assumes it is complete asks the buyer to carry the waiting time.