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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.

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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

  1. Enter delay days.
  2. Enter lost daily rent.
  3. Enter daily carry cost (interest + opex).
  4. Enter contractual liquidated damages rate.
  5. 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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