10th Jul 2026
Admin
The difference between a construction loan and a Conventional mortgage starts with one question: are you building a home, or buying one that already exists?
A construction loan funds a home you're building and releases money in stages as the work gets done. A Conventional mortgage finances a finished home and hands over the full amount at closing.
Everything else: the down payment, the credit bar, the number of closings, the way interest works— follows from that single difference.
Picking the right one isn't about which loan is "better." It's about which one matches your situation. If you're weighing a construction loan vs. a mortgage for the first time, it’s important to understand how construction loans work before you compare them side by side.
What's The Difference Between a Construction Loan and a Conventional Mortgage?
A construction loan finances a home that is being built and releases funds in stages through a draw schedule, with interest-only payments during construction. A Conventional mortgage finances a home that already exists and disburses the full loan amount at closing, with principal-and-interest payments from the start. Construction loans require more money down, stronger credit, and more documentation.
The cleanest way to see the difference is to put the two products next to each other. A construction loan is a short-term, higher-risk loan secured by a home that doesn't exist yet, so the lender protects itself with tighter terms. A Conventional mortgage is a long-term loan secured by a finished home that can be appraised today, which makes it cheaper and simpler to qualify for.
| Feature | Construction loan | Conventional mortgage |
| What it finances | A home is being built | A home that already exists |
| How funds are released | In stages, on a draw schedule | One lump sum at closing |
| Payments during the loan | Interest-only during the build | Principal and interest from day one |
| Typical term | Short-term (about 12–18 months) before converting or refinancing | 15 or 30 years |
| Typical down payment | Around 20% (15%–25% range) | As low as 3%–5% conventional, 3.5% FHA |
| Typical credit minimum | ~680 for conventional construction | 620 conventional, 580 FHA |
| Closings | One (single-close) or two (two-close) | One |
How Does a Construction Loan Work?
A construction loan pays out in stages called draws, released as the builder completes milestones such as the foundation, framing, and finishing. Borrowers pay interest only on the funds drawn so far during the build. When construction ends, the loan either converts to a permanent mortgage (single-close) or is replaced by a separate mortgage (two-close).Instead of one lump sum, a construction loan funds the project piece by piece. The lender sets a draw schedule, and money is released after each stage passes inspection, so you're not paying interest on the whole loan amount from day one, only on what has actually been drawn. During the build, your payments are interest-only, which keeps costs manageable while you may also be paying rent elsewhere.
What happens when the house is finished depends on the structure you chose. A two-close loan is paid off by a separate mortgage you qualify for again at the end. A single-close, or one-time close construction-to-permanent loan, rolls the build and the permanent mortgage into one loan with one closing and locks your long-term terms at the start.
How Does a Conventional Mortgage Work?
A Conventional mortgage finances a home that already exists. The lender disburses the full loan amount at closing, and the borrower repays principal and interest over a fixed term, typically 15 or 30 years. Because the home can be appraised immediately, qualification is more straightforward, with lower down payments and credit minimums than with construction financing.
A Conventional mortgage is the loan most buyers know. You find a finished home, the lender appraises it, and at closing, the full amount changes hands to the seller. From that day forward, you make principal-and-interest payments over a set term, usually 15 or 30 years, fixed or adjustable.
Because the collateral already exists and its value is known, the lender takes on less risk, and that shows up everywhere in the terms. Down payments can start as low as 3% to 5% on a conventional loan or 3.5% on an FHA loan, credit minimums are more forgiving, and there's a single closing. If you're buying rather than building, this is almost always the product you'll use, including when you buy a brand-new home that a builder has already finished.
Construction Loan vs. Conventional Loan: Cost and Qualification Differences
Compared with a conventional mortgage, a construction loan typically requires a larger down payment (around 20% versus as little as 3%–5%), a higher credit score (roughly 680 versus 620), and more documentation for the builder and project. Construction financing is also priced higher and, in a two-close structure, involves two sets of closing costs.
When people compare a construction loan vs. conventional loan, the gap comes down to risk, and it's paid for in three currencies: cash, credit, and complexity.
| Requirement | Construction loan | Conventional mortgage |
| Down payment | ~20% (15%–25%) | 3%–5% for many buyers |
| Credit score | ~680 typical | 620 typical |
| Documentation | Income plus builder, plans, budget, appraisal | Income and the existing home |
| Closing costs | One or two closings | One closing |
Cost is the trade-off worth being honest about. A construction loan is priced to reflect the risk the lender carries while the home is unbuilt, so it generally costs more than a comparable mortgage, and a two-close structure means paying closing costs twice. That doesn't make it the wrong choice; for a custom build, it's often the only choice, but you should weigh it against alternatives.
If you have significant equity in your current home, a cash-out refinance or a home equity line can sometimes fund a project with fewer moving parts. The right answer depends on your equity, your timeline, and how custom your plans are. (Rates and terms vary by borrower and are subject to change and credit approval; contact a Sistar loan officer for current pricing.)
Which Option Is Right For You?
Choose a Conventional mortgage if you are buying a home that already exists, including a newly built home purchased from a builder. Choose a construction loan if you are building a custom home from the ground up or cannot find an existing home that fits your needs. The deciding factor is whether the home exists yet, not the loan's price or size.
Strip away the detail, and the decision is straightforward. Match the loan to the situation:
- Buying an existing home? A Conventional mortgage. Lower down payment, easier qualification, one closing.
- Building a custom home from the ground up? A construction loan. It's built to fund a project in stages, which a mortgage can't do.
- Can't find a home that fits and considering building? A construction loan gives you the control to build exactly what you need, at the cost of a higher down payment and more paperwork.
- Have strong equity in your current home? Weigh a construction loan against a cash-out refinance or equity line before deciding.
What About Buying a Newly Built Home From a Builder?
This is where people get tripped up. If you're buying a newly built home that a builder constructed on spec, a finished or nearly finished house in a development, you generally use a standard mortgage, not a construction loan. The builder financed the construction; you're simply buying the completed result.
You'd only need construction financing if you are the one commissioning and funding the build. Not sure which camp you fall into? Run both scenarios through our mortgage calculator to see how the numbers compare before you commit.
Frequently Asked Questions
1. Is a construction loan the same as a mortgage?
No. A construction loan is a short-term loan that funds a home while it's being built and releases money in stages. A mortgage is a long-term loan that finances a finished home and pays out in full at closing. A construction loan can convert into or be replaced by a mortgage once the build is complete.
2. Is it harder to get a construction loan than a mortgage?
Generally yes. Because the home doesn't exist yet, construction loans require a higher credit score, a larger down payment, and documentation for the builder and project. A Conventional mortgage is secured by an existing home, so qualification is usually more straightforward.
3. Do construction loans have higher interest rates than mortgages?
Construction loans are typically priced higher than comparable mortgages because the lender takes on more risk during the build. Exact pricing varies by borrower, program, and market, so ask a loan officer for current terms rather than assuming a fixed gap.
4. Can a construction loan turn into a mortgage?
Yes. A single-close, or construction-to-permanent, loan automatically converts into a permanent mortgage when the build finishes, with no second closing. A two-close loan is paid off by a separate mortgage you qualify for at the end of construction.
5. Do you need a bigger down payment for a construction loan than for a mortgage?
Usually. Construction loans commonly require around 20% down, while conventional mortgages can start as low as 3% to 5%, and FHA loans at 3.5%. If you already own your land, that equity can count toward the construction-loan down payment.
6. Do you need a mortgage if you build a house?
If you use a two-close construction loan, you'll take out a separate mortgage once the home is finished. If you use a single-close construction-to-permanent loan, the construction financing becomes your mortgage automatically, so there's no separate loan to arrange.
Compare Your Home Financing Options
The best financing depends entirely on your situation, whether you're buying or building, how much you have for a down payment, and what your timeline looks like. A short conversation with a Sistar Mortgage loan officer can match your plans to the right product and show you what qualification looks like for each path.
Compare your home financing options or speak with a Sistar Mortgage loan officer to find the loan that fits how you want to move.
