Chennai Peripheral Ring Road

NHAI

Ring Road
Chennai Peripheral Ring Road map

Overview

The Chennai Peripheral Ring Road (CPRR) is a 132.87-km, six-lane access-controlled expressway connecting Ennore Port to Poonjeri near Mamallapuram across five sections. Developed by TNRDC under the Tamil Nadu Highways Department, the total project cost is Rs 12,301 crore funded by JICA (Japan International Cooperation Agency), AIIB (Asian Infrastructure Investment Bank), and the OPEC Fund for International Development (OFID). Section 4 (Sriperumbudur to Singaperumalkoil) is complete; Sections 2 and 3 are near completion; Section 4 complete and operational. Sections 2 and 3 nearing completion as of early 2026. Section 5 tender floated December 2025. Section 1 (Ennore to Thatchur) remains the most delayed section; full project completion now expected 2027.

Active Land Acquisition Across 30 Villages: What Chennai Peripheral Ring Road Land Buyers Must Check Before Any Purchase

Land acquisition for the CPRR is still in progress across sections that are not yet complete. Over 234 hectares are being acquired across more than 30 villages, affecting approximately 676 families. Section 1 (Ennore Port to Thatchur, 25.4 km) faces the sharpest delays: relocating 12 water tanks and rerouting heavy power transmission lines are blocking completion. Section 5 (Singaperumalkoil to Mamallapuram, 27.41 km) land acquisition is in its final stage, but tenders have not yet been floated; this section was upgraded from four to six lanes, which also expands the land footprint from the original plan.

The 60-meter ROW is the base corridor. Service road land acquisition is still underway across the entire 132.87-km alignment, meaning the effective footprint is wider than 60 meters in many sections. In stretches where the alignment crosses reserved forest land, TNRDC is processing land swap proposals; plots that border reserved forest areas near the CPRR alignment carry additional legal complexity that standard title verification will not capture.

The table below shows each section, its status, and the current land risk for buyers in adjacent villages:

Section 1

Stretch

Ennore Port to Thatchur (25.4 km)

Status

Under construction; delayed

Land Risk

12 tank + power line relocation pending; service road acquisition underway

Section 2

Stretch

Thatchur to Tiruvallur Bypass

Status

Under construction

Land Risk

Service road land acquisition in progress

Section 3

Stretch

Tiruvallur Bypass to Sriperumbudur

Status

79% complete (L\\&T); 50% (SPK)

Land Risk

Service road land acquisition in progress

Section 4

Stretch

Sriperumbudur to Singaperumalkoil

Status

Completed

Land Risk

Main ROW settled; service roads ongoing

Section 5

Stretch

Singaperumalkoil to Mamallapuram (27.41 km)

Status

Land acquisition final stage

Land Risk

Section 5 tender floated by TNRDC in December 2025 (EPC lump-sum model). Construction mobilisation expected 2026; completion now projected 2027. Forest land swap proposal active.

Do not assume that because Section 4 is physically open, adjacent land is free from acquisition risk. Service road land acquisition runs the full length of the corridor; a plot that sits just outside the 60-meter main ROW may still be inside the service road acquisition band. Verify the survey number against the current TNRDC land acquisition notification, not just the main carriageway boundary.

Sriperumbudur to Mamallapuram: Which CPRR Corridors Carry Real Land Investment Value in 2025

Section 4 is the only fully operational section of the CPRR today; it runs through Sriperumbudur, which is already an established electronics and automotive industrial belt. Land there is not priced on future CPRR upside; it is priced on existing industrial demand. The real investment question is where the CPRR adds a new connectivity advantage to areas that were previously harder to access.

The table below shows the primary micro-markets along the CPRR alignment and the realistic land signal at each:

Sriperumbudur (NH-48 junction)

Section

Section 4 (complete)

Signal

Active industrial belt; Section 4 operational

Key Risk

Already priced on industrial demand; limited new upside

Singaperumalkoil (ECR junction)

Section

Section 4/5 boundary

Signal

CPRR + ECR intersection; growing residential

Key Risk

Verify Section 5 service road land before purchasing

Mamallapuram / Poonjeri (ECR south)

Section

Section 5

Signal

Tourism + residential interest; ECR growth

Key Risk

Section 5 tender floated by TNRDC in December 2025 (EPC lump-sum). Construction mobilisation expected 2026; completion projected 2027.

Tiruvallur / NH-716 junction

Section

Sections 2-3

Signal

NH-716 + CPRR node; warehouse and logistics demand

Key Risk

Construction disruption ongoing through 2025

Ennore / Kattupalli port fringe

Section

Section 1

Signal

Port logistics; industrial corridor

Key Risk

Most delayed section; power line and tank relocation unresolved

Tamaraipakkam / Periyapalayam

Section

Sections 2-3

Signal

New connectivity; previously underserved

Key Risk

Service road acquisition in progress; verify before purchase

Singaperumalkoil is the most misread corridor on this alignment. Brokers market it as "Section 4 complete, so uplift is confirmed," but Section 5 (continuing south to Mamallapuram) has not yet reached tender stage; the Singaperumalkoil-to-Mamallapuram land play depends entirely on Section 5 progressing on schedule. The Mamallapuram corridor on the ECR (East Coast Road) is where the speculative premium is highest and also where the timeline is least certain; full completion of Section 5 is expected no earlier than 2026.

Data Source & Verification

Source

Official Tamil Nadu Road Development Company (TNRDC) documents

Official Website

cprr.tn.gov.in

Coordinate Reference System

EPSG:4326 (WGS 84)

Geometry Type

LineString / MultiLineString

Data Format

Vector (GeoJSON) + Raster Tiles

Last Verified

May 2026

Status

Active

Disclaimer: Alignment and corridor information shown here is indicative. Users should verify details with Tamil Nadu Road Development Company (TNRDC) and the relevant state authorities before any transaction or investment decision.

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