Loan Conversion: From Construction Loan to Permanent Mortgage

Overview

Loan conversion at a glance
Factor	Detail
Typical Duration	2-4 weeks
DIY Difficulty	3/5 — Paperwork intensive
Typical Cost	$0-$3,000 (depending on loan type)
When to DIY	Document gathering, communication
When to Hire	Mortgage broker (if having issues)

Converting your construction loan to a permanent mortgage is the final financial step in your owner-builder journey. Get this right and you'll have a manageable monthly payment. This guide walks you through the process.

When This Step Happens

Where loan conversion fits in the build sequence
Timing	Item
Must be complete first	Certificate of Occupancy received
Can happen in parallel	Moving in, final cleaning
What comes after	Regular mortgage payments, homeownership!

Understanding Loan Conversion

Which scenario are you in?

Your path depends on the loan you closed. A construction-to-permanent loan converts automatically with no second closing. A construction-only loan requires a full refinance — a second closing at current market rates.

Two Scenarios

Construction-to-permanent vs. construction-only loan
Factor	Scenario 1: Construction-to-Permanent	Scenario 2: Construction-Only
Conversion	Single loan that automatically converts	Requires refinance to permanent mortgage
Closing	No second closing required	Second closing with new fees
Interest rate	Locked at initial closing	Current market rates apply
Trade-off	Simpler and less expensive	More flexible but more expensive

Construction-to-Permanent Conversion

The Automatic Conversion Process

One loan, one closing

With a construction-to-permanent loan, you pay interest-only during construction. After the Certificate of Occupancy, the loan converts to a standard mortgage — principal and interest begin, usually as a 30-year fixed.

How it works:

Construction period: Interest-only payments
After CO: Loan converts to standard mortgage
Principal and interest payments begin
Usually 30-year fixed mortgage

Timeline

Construction-to-permanent conversion timeline
Stage	What happens
Week 1-2: Pre-Conversion	Submit Certificate of Occupancy to lender; lender orders final appraisal (if required); final inspection by lender (to verify completion); review final costs and loan amount
Week 2-3: Processing	Lender processes conversion paperwork; final loan amount calculated; payment schedule generated; escrow account set up (if applicable)
Week 3-4: Activation	Receive final loan documents; sign any required paperwork; first mortgage payment scheduled; conversion complete

Required Documentation

What lender needs:

[ ] Certificate of Occupancy (certified copy)
[ ] Final cost breakdown (actual vs budgeted)
[ ] Receipts and lien releases from all contractors
[ ] Proof of homeowner's insurance
[ ] Updated income verification (if required)
[ ] Appraisal (if ordered)

Costs

Much less than new loan closing costs

A construction-to-perm conversion typically runs $500-$1,600 total — a fraction of what a new loan closing costs.

Typical costs for construction-to-perm conversion
Item	Cost
Final appraisal (if required)	$400-$600
Recording fees	$100-$300
Escrow setup	$0-$500
Document fees	$0-$200
Total	$500-$1,600

Construction-Only Loan Refinance

The Refinance Process

This is essentially getting a new mortgage

A construction-only refinance means full underwriting, a new appraisal, and a new closing with full fees. The new mortgage pays off your construction loan.

This is essentially getting a new mortgage:

Apply for mortgage loan
Full underwriting process
New appraisal required
New closing with full fees
Pay off construction loan with new mortgage

Timeline

Construction-only refinance timeline
Stage	What happens
Week 1-2: Application	Shop for best mortgage rates; submit loan application; provide required documentation; lock interest rate (if desired)
Week 2-4: Underwriting	Lender orders appraisal; verify income and employment; check credit; underwrite loan
Week 4-6: Closing	Receive Closing Disclosure; review final numbers; schedule closing appointment; sign documents and pay closing costs; construction loan paid off

Required Documentation

Complete mortgage application requires:

[ ] Certificate of Occupancy
[ ] Proof of income (pay stubs, tax returns)
[ ] Bank statements
[ ] Final cost breakdown
[ ] Homeowner's insurance
[ ] Lien releases from all contractors
[ ] Employment verification
[ ] Credit check authorization

Costs

Full refinance runs 1-3% of the loan amount

A construction-only refinance carries full closing costs — $3,350-$8,000, or 1-3% of the loan amount. Budget for it well before your CO.

Full refinance closing costs
Item	Cost
Appraisal	$400-$600
Origination fee	0.5-1% of loan ($1,000-$3,000)
Title insurance	$1,000-$2,000
Recording fees	$100-$300
Credit report	$50-$100
Underwriting fee	$300-$500
Escrow setup	$500-$1,500
Total	$3,350-$8,000 (1-3% of loan amount)

Appraisal Process

Why Another Appraisal?

The lender is verifying its collateral

The final appraisal confirms the completed home is worth at least the loan amount and is marketable — protecting the lender's loan-to-value position.

Lender needs to verify:

Completed value matches or exceeds loan amount
Construction quality is acceptable
No major defects or issues
Home is marketable
Loan-to-value ratio is acceptable

The Appraisal Visit

Appraiser will:

Inspect entire house (interior and exterior)
Measure square footage
Photograph all rooms and exterior
Note quality of finishes and construction
Compare to similar homes (comps)
Generate appraisal report

Typical timeline: Order to report = 1-2 weeks

Appraisal Issues

A low appraisal can mean cash at closing

If the appraised value comes in below construction cost, your loan-to-value ratio rises and you may need to bring extra cash to closing. Defects noted by the appraiser can require repairs before approval.

Problem 1: Appraisal Comes in Low

Appraised value less than construction cost
Loan-to-value ratio higher than allowed
May need to bring extra cash to closing

Solutions:

Challenge appraisal with better comps
Get second appraisal (at your cost)
Bring additional down payment
Negotiate with lender on loan terms

Problem 2: Defects Noted

Appraiser notes quality issues or defects
May require repairs before loan approval
Could affect loan amount

Solutions:

Fix noted defects
Provide documentation of quality (warranty info)
Get contractor letter explaining items

First Mortgage Payment

When Payment Starts

When your first mortgage payment is due
Loan type	When payment starts	Notes
Construction-to-Perm	Typically 30-45 days after conversion	Example: Convert on March 15, first payment May 1
Refinance	30-45 days after closing	Pays interest from closing date forward

Payment Calculation

Verify the payment matches your budget

Run the numbers before you sign. On a $250,000 loan at 6.5% over 30 years, principal and interest land near ~$1,580/month — escrow pushes the total to $1,880-$2,380.

Principal and interest example:

Loan amount: $250,000
Interest rate: 6.5%
Term: 30 years
Monthly P&I: ~$1,580

Plus escrow (if applicable):

Property taxes: $200-$500/month
Homeowner's insurance: $100-$300/month
Total monthly payment: $1,880-$2,380

Verify payment amount is what you expected based on budget

Escrow Account

What it is:

Account held by lender
Pays property taxes and insurance
You pay into it monthly
Lender pays bills annually/semi-annually

Initial escrow deposit:

2-3 months taxes
2-3 months insurance
Due at conversion/closing

Ongoing:

Included in monthly payment
Reviewed annually
Adjusted if taxes or insurance change

Common Issues and Solutions

Most conversion delays trace to paperwork

Missing documents, appraisal hiccups, income-verification gaps, and budget overruns are the usual culprits. Stay responsive and submit everything promptly to keep the conversion on track.

Issue 1: Conversion Delayed

Causes:

Missing documentation
Appraisal delayed
Lender processing backlog
Title issues

Solution:

Submit all docs promptly
Follow up weekly with lender
Be responsive to requests
Escalate to manager if needed

Impact:

Extended construction loan interest
Delayed interest rate lock (if refinancing)
Stress and uncertainty

Issue 2: Income Verification Problems

Causes:

Changed jobs during construction
Self-employed with fluctuating income
Took time off for construction

Solution:

Explain circumstances to lender
Provide documentation of stable income
Show employment contract or offer letter
Consider co-borrower if needed

Issue 3: Went Over Budget

Causes:

Construction costs exceeded loan amount
Unexpected expenses
Changes and upgrades

Solution:

Pay overages out of pocket before conversion
Get lien releases for all work
Document all expenses
Verify final loan amount covers all costs

Issue 4: Inspection Reveals Issues

Don't hide problems

If the lender's final inspection flags defects or unfinished items, fix them immediately and get a re-inspection. Concealing issues jeopardizes the whole conversion.

Causes:

Lender's final inspection notes defects
Unfinished items discovered
Quality concerns raised

Solution:

Fix issues immediately
Get re-inspection
Provide warranties/documentation
Don't hide problems

Switching to Homeowner's Insurance

Construction to Homeowner's

No gap in coverage

Builder's risk expires when construction completes; your homeowner's policy must activate on the CO date. The lender requires it, and any lapse leaves your finished home unprotected.

During construction:

Builder's risk policy covers construction
Expires when construction complete

After CO:

Need homeowner's policy
Covers completed home
Required by lender

Process

1. Contact insurance agent (2-3 weeks before CO) 2. Get homeowner's policy quote 3. Compare multiple quotes 4. Purchase policy to activate on CO date 5. Cancel builder's risk policy 6. Provide proof to lender

Important: No gap in coverage!

Cost Comparison

Builder's risk vs. homeowner's insurance
Policy	Cost
Builder's risk	$1,500-$3,000 (one-time during construction)
Homeowner's	$1,200-$3,600/year (ongoing)

Higher if:

Higher coverage amount
More valuable contents
Special riders (jewelry, etc.)
Higher risk area (flood, fire)

Final Financial Reconciliation

Total Project Cost

Before conversion, calculate:

[ ] Total construction costs
[ ] Interest paid during construction
[ ] All fees and closing costs
[ ] Any cost overruns
[ ] Final loan amount

Compare to original budget:

Where did you come in under?
Where did you go over?
What were unexpected costs?
What would you do differently?

Savings Achieved

Celebrate your achievement!

Tally your owner-builder savings: estimated cost with a GC minus your actual cost. Your sweat equity value is priceless.

Calculate your owner-builder savings:

Estimated with GC: $XXX,XXX
Actual cost: $XXX,XXX
Savings: $XX,XXX
Your sweat equity value: Priceless

Celebrate your achievement!

Quality Checkpoints

Three things to confirm before conversion

Before conversion or closing, make sure your documentation is in order, your finances are ready, and the property is 100% complete and inspection-ready.

Before conversion/closing:

Documentation Ready:

[ ] Certificate of Occupancy (certified copy)
[ ] All contractor invoices and receipts
[ ] All lien releases
[ ] Proof of final costs
[ ] Homeowner's insurance policy
[ ] Income verification (if required)

Financial Ready:

[ ] Understand final payment amount
[ ] Escrow deposit funds available (if applicable)
[ ] Closing costs saved (if refinancing)
[ ] All construction bills paid
[ ] No outstanding contractor payments

Property Ready:

[ ] 100% complete
[ ] Passed final inspection
[ ] No defects noted in appraisal
[ ] Utilities in your name
[ ] Ready for lender final inspection

Budget for Conversion

Budget for the higher amount to be safe

Conversion costs depend entirely on your loan type. A construction-to-permanent conversion runs $700-$1,600; a construction-only refinance runs $3,850-$9,500 once overlapping interest is included.

Budget to set aside for conversion, by loan type
Loan type	Line items	Total
Construction-to-Permanent	Final appraisal (maybe) $400-$600; recording fees $100-$300; misc fees $200-$700	$700-$1,600
Construction-Only Refinance	Full closing costs $3,350-$8,000; overlapping interest $500-$1,500	$3,850-$9,500

Timeline Summary

Conversion timeline summary by loan type
Milestone	Construction-to-Permanent	Construction-Only Refinance
Start	Submit CO: Day 1	Submit application: Day 1
Processing	Lender processes: Days 1-14	Underwriting: Days 1-21
Appraisal	If needed: Days 5-15	Days 5-15
Complete	Conversion complete: Days 14-21	Closing: Days 28-42
First payment	Day 45-60	Day 60-75

What Comes Next

After loan conversion:

Make monthly mortgage payments on time
Budget for property taxes and insurance
Maintain your home
Enjoy the home you built!

Link to: Moving In

Related Resources

Ready to move in? Our moving-in checklist covers final preparation steps.

Want to track your project costs? See our budget tracking guide.