Skip to main content
Construction Guide

What If Construction Costs Increase?

Contingency reserves — often around 5–10% of the build budget — cover some overruns, but costs can still exceed what the loan allows. Beyond contingency, you usually pay the difference in cash or must restructure the loan, which is not always possible. Ryan & Steve stress realistic budgets before closing.

How Contingency Protects — and Where It Stops

Your construction budget includes a contingency holdback — a cushion for unexpected costs like soil issues, code upgrades, or minor change orders. The lender holds this reserve and releases it only when documented overruns occur. It is not a slush fund for discretionary upgrades.

When overruns exceed contingency, the gap typically comes from borrower cash. Restructuring the loan to add funds mid-build requires a new appraisal, updated plans, and lender approval — and is not guaranteed. That is why Ryan and Steve push for thorough builder bids and realistic allowances before you close.

Fixed-price builder contracts can limit your exposure on defined scope, but allowances for fixtures, flooring, and landscaping still create variance. Understand what is fixed vs. allowance-driven before you sign.

At a Glance

ContingencyOften 5–10% of budget
CoversUnexpected overruns
Beyond contingencyBorrower cash usually required
Loan increaseNot always possible
Change ordersCommon cost driver
Fixed-price contractsHelp limit risk

Common Reasons Costs Rise Mid-Build

Knowing the usual suspects helps you budget reserves beyond the loan contingency.

Supply-chain and material spikes

Lumber, concrete, steel, and specialty finishes can move in price between bid date and installation. Fixed allowances may not cover premium selections you choose later.

Change orders and upgrades

Upgrading cabinets, countertops, or fixtures after construction starts adds cost. Each change order is documented — and increases beyond contingency need cash.

Site and code surprises

Rock excavation, drainage issues, or code updates discovered during construction can consume contingency quickly. Geotechnical reports before closing reduce but do not eliminate this risk.

Labor and timeline delays

Extended builds may trigger price escalation clauses in builder contracts. Delays also extend interest-only payments during construction, adding to total cost.

Build a Budget That Survives Real-World Variance

Ryan and Steve recommend these steps before you close on construction financing.

Step 1

Get detailed line-item bids

Avoid lump-sum estimates that hide allowances. Know what is fixed price vs. allowance-driven.

Step 2

Confirm contingency amount

Verify the loan budget includes contingency and understand how it can be accessed during draws.

Step 3

Hold personal reserves

Plan cash beyond down payment and contingency for upgrades and market volatility.

Step 4

Lock selections early

Choose major finishes before groundbreaking to reduce change-order-driven overruns.

Jul 21, 2026 • 2MG Daily

Construction Loans for Building Your New Home

Read article →

Frequently Asked Questions

What happens if construction costs go over budget?

Most construction loans include a contingency reserve — often around 5–10% of the build budget — to cover modest overruns. Once contingency is exhausted, the borrower typically pays the difference in cash. Increasing the loan amount mid-build is not always possible and depends on program rules, appraisal, and lender approval.

What causes construction cost increases?

Common drivers include supply-chain price spikes, labor shortages, change orders for upgrades, unforeseen site conditions, and code compliance discoveries during construction. Fixed-price builder contracts can shift some risk to the builder, but allowances and change orders still affect your out-of-pocket exposure.

How much contingency should I plan for?

Ryan and Steve stress realistic budgets before closing — not just the minimum contingency in the loan file. A 5–10% contingency is typical in the budget, but volatile material markets and scope changes mean holding additional cash reserves beyond the loan contingency is prudent planning.

Does this page guarantee cost overruns will be covered?

No. Contingency amounts, fixed-price contract terms, and lender policies vary by file. This page is educational only and is not a commitment to lend. Final handling of overruns depends on your builder contract, contingency balance, and program guidelines.

Build With a Realistic Budget From Day One

Ryan & Steve help you stress-test builder bids, contingency reserves, and personal cash reserves before closing — so cost increases do not derail your dream home.