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Construction Delay Damages Calculator
Every day of construction delay costs money — lost rent, extra carry, LD per contract. This calculator sizes total damages from delay.
Total delay damages
$315,000
Lost rent
$135,000
Extra carry cost
$67,500
LD owed (capped)
$112,500
How the math works
Total delay damages = lost rent + extra carry + LD (subject to cap). Each adds up independently.
LD is owner's revenue recovery from GC. Lost rent and carry are owner's actual cost. Together they show full economic cost of delay — often 5-10% of project cost on a 6-month delay.
How to Use
- Enter delay days.
- Enter lost daily rent.
- Enter daily carry cost (interest + opex).
- Enter contractual liquidated damages rate.
- Read total delay damages.
Frequently Asked Questions
What is liquidated damages (LD)?
Contractual penalty in GC contract — GC owes LL fixed $/day past substantial completion. Common: $1-5k/day on mid-size projects; $10-25k/day on large. Limited by contract cap.
Can GC pass through?
Some do via force majeure or owner delay clauses. Institutional LLs remove these clauses aggressively — force majeure is too vague. Document delays carefully to preserve LD rights.
Typical delay on 24-month project?
6-12 weeks is common; 3+ months signals serious issues. Delay beyond contingency = claim territory. Damages on a $20M deal at 4 weeks late: $100-500k range.
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