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New Construction Mortgages: Complete Buyer’s Guide

November 24, 2025
4 min read
Updated Jan 9, 2026
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Buying new construction—whether a pre-construction condo or a new-build home—involves different mortgage processes than purchasing a resale property. Understanding these differences helps you avoid costly surprises and secure the right financing.


Types of New Construction Purchases

Pre-Construction Condo

Timeline: Purchase 1-4+ years before completion

Process:

  • Sign agreement and pay deposits over time
  • No mortgage needed until closing/occupancy
  • Must qualify for mortgage when building completes

Builder New Home

Timeline: Purchase before or during construction, typically 6-18 months

Process:

  • May use progress draw mortgage
  • Or standard mortgage if home is near-complete
  • Closing when construction completes

Custom Build (Your Land)

Timeline: Variable, typically 8-18 months

Process:

  • Construction mortgage with progress draws
  • Converts to regular mortgage on completion
  • More complex underwriting

The Pre-Construction Deposit Structure

Typical deposit schedule for pre-construction condos:

Timing Amount Cumulative
At signing 5% 5%
30 days 5% 10%
90 days 5% 15%
180 days 5% 20%
Occupancy Balance Down payment

Key risk: These deposits are typically non-refundable. If you can't qualify for a mortgage at closing, you may lose your deposits.


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Talk to our team about new construction financing well before your closing date approaches.


The Rate Lock Challenge

Most rate holds last 90-120 days. Pre-construction closings are often 2-4 years away. This creates challenges:

Strategies for Rate Protection

1. Extended Rate Holds

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  • Some lenders offer 6-12 month holds
  • Usually at slightly higher rates
  • Limited availability

2. Rate-Hold-On-Completion Programs

  • Rate determined closer to closing
  • Less certainty, but current market rate
  • Standard approach

3. Accept Rate Risk

  • Current rates may not be available at closing
  • Budget for higher rates as contingency
  • Rates could also be lower

Rate Change Impact

$500,000 mortgage, rates increase 1%:

  • Payment increases ~$275/month
  • You may qualify for less
  • Budget accordingly

Progress Draw Mortgages (Custom Builds)

For custom construction on your own land:

How Draws Work

Percentages vary by lender and project.

During Construction

  • Interest-only payments on drawn amounts
  • Inspector visits before each draw
  • Builder must submit invoices/progress

On Completion

  • Mortgage converts to standard amortizing mortgage
  • Final inspection and occupancy permit required
  • Regular P&I payments begin

Qualification Timing: The Critical Risk

Pre-Construction Risk

You must requalify at completion:

What Could Change Impact
Income decrease May not qualify
Job loss Major problem
Credit score drops Higher rates or denial
Debt increases Lower qualification
Interest rates rise Qualify for less
Property doesn't appraise Financing gap

Protecting Yourself

  1. Conservative budgeting: Don't max out your qualification
  2. Job stability: Avoid career changes before closing
  3. Credit protection: No new debt, maintain payments
  4. Cash reserves: Have buffer for rate changes
  5. Contingency planning: What's Plan B if you can't close?

Occupancy vs. Final Closing (Condos)

Occupancy

  • Builder allows you to move in
  • Condo not yet registered
  • You pay "occupancy fees" (like rent + taxes)
  • No mortgage yet

Final Closing

  • Condo registration complete
  • Mortgage funds
  • You take title ownership
  • Can be months after occupancy

Plan for both dates when budgeting.


FAQ

Q: What if I can't qualify when it's time to close?
A: You may lose your deposits—potentially tens of thousands of dollars. Some developers may agree to extensions, but they're not obligated. This is the primary risk of pre-construction.

Q: Can I use my pre-construction purchase as collateral for another property?
A: Not until it closes and you have actual equity. During the pre-construction period, your deposits are with the developer, not as home equity.

Q: Do I need to be pre-approved before signing a pre-construction contract?
A: Not required, but strongly recommended. Pre-approval tells you what you can likely afford, though it doesn't guarantee future approval.

Q: What happens if the builder delays closing?
A: Delays are common. Your rate hold may expire, and you'll need to lock a new rate. Budget for this possibility.

Q: Can I assign my pre-construction contract to someone else?
A: Depends on the developer's terms. Many allow assignments (for a fee). Note that assignment profits are taxable income.


What's Next

New construction financing requires early planning. Connect with our team well before your anticipated closing date—ideally at least 6 months before—to ensure smooth financing.

Plan Your New Build Financing

Our team specializes in new construction mortgages. Start planning early to ensure smooth financing.