Chennai's construction market combines CMRL metro Phase 2 civil packages (FIDIC contracts with multiple Indian and JV contractors), NHAI and state highway coastal works, growing healthcare construction clusters (OMR hospital corridor), and residential development along ECR and OMR. Tamil Nadu RERA is actively processing possession delay complaints, and coastal construction specifics require BOQ expertise beyond standard IS 1200.
CMRL Phase 2 packages use FIDIC conditions with National Invitation to Tender schedules. Three Schedule Performance Index risks dominate: (1) Utility shifting delays — TNEB, CMWSSB, and BSNL relocations are employer-risk events under FIDIC sub-clause 8.4 — but the contractor must submit written notice of delay claim within 28 days of each event (FIDIC sub-clause 20.1). Missing this deadline forfeits the Extension of Time entitlement entirely, even when the utility agency was the cause. Daily records documenting when each utility shifting was requested and when it was completed are essential. (2) ROW handover — CMRL releases right-of-way in phases; partial ROW affects critical-path pier foundations. (3) Measurement reconciliation — CMRL Engineer's measurement at each interim certificate must match the contractor's Running Account quantities. Discrepancies compound over a 5-year project cycle into significant payment disputes.
TNRERA applies RERA Section 18 — SBI MCLR + 2% per annum on all buyer receipts for each month of delayed possession. Chennai's specific risk: CMDA Completion Certificate and OC timelines for large residential projects (over 100 units) extend 8–12 months post-structural completion. CMWSSB water connection clearances add 2–4 months. These delays are not automatically Force Majeure under TNRERA.
Example: A ₹80 Cr OMR residential project with ₹64 Cr in total buyer receipts. Each month of delay at 12.75% per annum = approximately ₹68 Lakh in RERA Section 18 interest. Six months = ₹4.1 Cr.
TNRERA Appellate Tribunal has consistently upheld Section 18 interest awards. Developers who track Schedule Performance Index against registered possession dates — and flag CMDA critical-path approval delays early — have the best chance of successfully applying for a TNRERA possession date revision before the breach occurs.
Coastal construction in Chennai (East Coast Road upgrades, Ennore Port area, outer ring road coastal sections) requires BOQ items not present in standard inland construction: IS 2911 deep foundations for soft coastal soils (bored cast-in-situ piles measured per running metre with separate mobilisation item), IS 456 concrete with marine durability requirements (minimum cement content 360 kg/m³, maximum water-cement ratio 0.45, and cover 50mm), anti-carbonation coating per IS 15477 as a separate measured item, and saline zone earth fill classified per IS 1498.
MoRTH specifications govern NHAI coastal highway BOQ — Section 300 (earthwork including saline zone), Section 900 (bridge works including marine concrete). Correct BOQ classification of coastal-specific items — and ensuring measurement aligns with IS 2911 and IS 456 marine exposure clauses — prevents disputes at NHAI interim payment certificates and final Running Account bill reconciliation.
FIDIC Extension of Time contemporaneous records. Running Account bill reconciliation across multiple CMRL fronts. Schedule Performance Index monitoring per section.
TNRERA possession date tracking. CMDA/CMWSSB approval milestone management. Section 18 interest exposure dashboard.
MoRTH-aligned BOQ for coastal sections. IS 2911 / IS 456 marine spec BOQ items. Coastal section Schedule Performance Index monitoring.
Complex MEP BOQ for hospital projects. Quality inspection tracking for medical-grade construction. Real-time progress vs handover commitments.
20 minutes. We show you Schedule Performance Index on your active Chennai projects and Liquidated Damages exposure at current trajectory. No pitch deck.