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Construction Cost Impacts Report - December 2025

TBD
By XL Editor

December 2025 snapshot of California construction cost pressures—4–5% annual escalation (6–8% with tariffs), key material trends, and critical lead-time risks for steel, lumber, and electrical gear to support smarter budgeting and contracts.

California construction costs are escalating at an annual rate of 4-5% and potentially rising to 6-8% with tariffs. As various markets change, civil infrastructure is leading the way at 22.6% volume annual growth while commercial faces the weakest outlook at just 1.5% spending growth. The critical risk is tariff exposure on steel, lumber, and high-voltage electrical components, where lead times have stretched to 59-130 weeks. Subcontractors may build explicit contingencies for imported materials (15-20%) and avoid fixed-price commitments without clear escalation clauses—transparency and risk allocation are essential in this volatile pricing environment.

Primary Causes

The following are primary causes influencing the various construction material costs, lead times,
shortages, and transport:

Tariffs

Construction tariffs range from 27% on residential materials sourced from China (10–55% tariffs), 11% Mexico, 8% Canada. Steel/aluminum are already up.

Labor Shortage

The industry needs 439,000 new workers in 2025 (potentially 499,000 by 2026), In California, 40%
of construction workers are immigrants, making the labor force particularly volatile. Keeping
schedules on track is becoming more difficult. This creates an opportunity for prefabrication and
industrialized construction.

Labor Costs

Labor represents 30-40% of total project costs. With 4-5% annual wage inflation becoming the
baseline, plus tariffs adding 5-8% to material costs, total project escalation of 6-10% is realistic
for 2025-2026.

Read the full report here: XLC_Construction Cost Impacts_December 2025

Date Published: 12.18.2025

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