About 80 km of Bengaluru's Satellite Town Ring Road (STRR), from Dobbaspet through Doddaballapur and Devanahalli to Hoskote, has been open and tolled since 2024. The next link, Hoskote to the Tamil Nadu border, was over 95% complete in July 2026 according to NHAI, and a Times of India report in August said NHAI is targeting about 144 km of continuous road from Dobbaspet to Hosur by November 2026. The western and southern arc, through Magadi, Ramanagara, Kanakapura and Anekal, is still years from completion.

Updated 13 October 2026. Targets below are labelled as targets; we found no report that the Hoskote–Tamil Nadu stretch had opened to traffic as of this date.

What is the STRR and where does it run?

The STRR is an access-controlled highway, notified as NH-948A, being built by the National Highways Authority of India (NHAI) to circle Bengaluru at a distance, linking the satellite towns around the city and letting long-distance trucks bypass it. Deccan Herald describes it as a 288 km, ₹17,000 crore project, with 243 km in Karnataka and 45 km in Tamil Nadu.

Read as a map, clockwise from the north-west, the planned ring runs: Dobbaspet, Doddaballapur, Devanahalli, Hoskote, the Tamil Nadu section near Hosur, back into Karnataka near Anekal, then Thattekere (Kanakapura taluk), Kunigal side (Ramanagara taluk), Magadi, and Obalapura near Nelamangala, closing at Dobbaspet. The eastern half is the one being built first.

What is the STRR's current status, section by section?

  • Open: Dobbaspet to Doddaballapur bypass (42 km) and Doddaballapur bypass to Hoskote (37.6 km), together roughly 80 km, inaugurated on 11 March 2024. Tolling on the Doddaballapur–Hoskote part began in November 2023.
  • Nearly complete: Hoskote to the Tamil Nadu border, 20.9 km. Deccan Herald reported on 25 July 2026 that NHAI said over 95% of the work was done, and that the railway had approved the drawings for two 54-metre bowstring girders over the Bengaluru–Chennai line near Hoskote, with a final railway inspection still pending. The stretch was originally due in February 2025.
  • Under construction: the Tamil Nadu section, reported at over 91% complete in August 2026 and targeted for September 2026 (Times of India, via Swarajya).
  • Tendered, not yet built: five packages covering 144.25 km of the western and southern arc, put out to bid by NHAI in September 2024 at ₹4,749.74 crore, with a two-year construction period from award.
  • Hardest stretch: 8.34 km through Bannerghatta National Park between Thattekere and Bagganadoddi, designed with wildlife underpasses at about ₹122 crore per km. In 2024 NHAI said wildlife board clearance had been received but forest and environmental clearances were still awaited.

When will the STRR be completed?

There is no single completion date, and published targets have repeatedly slipped. The project deadline was pushed from 2025 to 2026, and the Hoskote–Tamil Nadu border link missed its February 2025 date because of the railway girder approval.

The current target, as reported by the Times of India on 6 August 2026, is for about 144 km to operate continuously from Dobbaspet to Hosur by November 2026, a section it put at ₹14,655 crore. When the Hoskote–border stretch opens, NHAI has said the STRR's operational length rises to 102.6 km. For the full 288 km ring, we found no credible current completion date; the western packages were given two years from award, and the Bannerghatta section depends on clearances.

A sensible working assumption for buyers: the eastern half (Dobbaspet to Hosur) is a 2026–27 reality; the western and southern arc is a late-decade possibility.

STRR map: the five western and southern packages

These are the packages NHAI tendered in September 2024, as listed by Deccan Herald. They are the ones most often cited in plot marketing, so it helps to know exactly where each runs.

  • Obalapura (Nelamangala taluk) to Somakkanamutta (Magadi taluk): 46.30 km, ₹1,419.90 crore.
  • Somakkanamutta (Magadi taluk) to Kunagal (Ramanagara taluk): 32.7 km, ₹825.19 crore.
  • Kunagal (Ramanagara taluk) to Thattekere (Kanakapura taluk): 33.64 km, ₹978.91 crore.
  • Thattekere (Kanakapura taluk) to Bagganadoddi (Anekal taluk), through Bannerghatta National Park: 8.34 km, ₹1,018.35 crore.
  • Bagganadoddi (Anekal taluk) to S Muduganapalli (Hosur taluk): 23.27 km, ₹507.39 crore.

Why does the Hoskote to Hosur stretch matter?

It is the link that turns the STRR from a north-east bypass into a useful arc. NHAI says the Hoskote–border stretch will connect to the Bengaluru–Chennai Expressway and help decongest Old Madras Road and Sarjapur Road. For freight between the airport side, Hoskote's industrial belt and Hosur, it removes the need to enter the city.

For homebuyers, the benefit is mostly indirect: better freight and commuter flows on the eastern fringe, and easier access between Hoskote, the airport corridor and Hosur. Our Hoskote guide is at Hoskote, Bengaluru: Buyer's Guide 2026 — Prices, Metro, Projects and Risks

Is there a toll on the STRR?

Yes. When tolling began on the Doddaballapur–Hoskote section in November 2023, Deccan Herald reported ₹70 for a single car trip and ₹105 for a return within 24 hours, collected at the Nalluru toll plaza near Devanahalli, with two-wheelers exempt. Those were the initial notified rates; toll rates are revised periodically, so check the current figure on NHAI's toll information before relying on it.

Which satellite towns gain from the STRR, and which are still hype?

How do you check an “on STRR” plot or villa claim?

The STRR is access-controlled, which means properties along it do not get direct access to the main carriageway. What matters is distance to the nearest interchange and the quality of the local road to it.

  • Ask for the nearest interchange by name and drive the route yourself. A plot 500 metres from the highway but 8 km from an exit is not “on STRR”.
  • Ask which package the stretch falls in, and check its status against this page. Pay no premium for a package that is only tendered.
  • Check that the layout is approved by the competent planning authority and, for plotted developments that require it, registered on Karnataka RERA.
  • Check the land records for the survey number, including any acquisition notification for the highway itself.
  • Treat appreciation percentages in brochures as marketing unless they cite a named, dated source.

Our view

The STRR's eastern half is real infrastructure that is nearly continuous from Dobbaspet to Hosur; the western and southern arc is a credible plan with uncertain timing. Buy in the satellite towns on current access, not the full ring. Related reading: the second-airport question, which also involves the Nelamangala and Kanakapura belts, at Second Airport Bangalore Location: Harohalli vs Nelamangala 2026