Construction Loan Down Payment Custom Home Texas

George Roddy • November 13, 2026

Construction loan down payment custom home Texas: how cash, land equity, and your builder contract shape the amount. Your lender sets it.

A construction loan down payment custom home Texas buyers ask about is the cash or land equity a lender wants in the project before it will fund the build. It is not a fee ROSÖ Homes sets, and it is not the price of the house. Lenders often describe a range around 5 to 30 percent of the land-plus-build total. Your file, the loan program, and whether you already own the lot decide the real number.

Get a fixed builder price, a clear lot value, and a written lender requirement on the same page before you commit cash. If you are building on land you already own, start with the build on your lot path, then take that price to your lender.

Book a ROSÖ Homes consultation.

Construction loan down payment custom home Texas buyers should define first

A construction loan is usually a short-term loan that funds a new home in stages, not one lump sum at the start. The Consumer Financial Protection Bureau describes a construction loan as money advanced while the home is built. Rates are often higher than on a long-term mortgage. Payments may not start for months. Some loans convert to a permanent mortgage. Others must be paid off or refinanced when the house is done. That structure is why the down payment question feels different from buying a finished house.

On a finished-home purchase, the down payment is simple. You pay part of the sale price, and the loan covers the rest. On a custom build, the lender is financing a house that does not exist yet. The collateral is the lot plus a promise that the plans, budget, and builder will produce a home worth the loan. Your contribution is the cushion if costs, timing, or the completed value do not land exactly where the application assumed.

People use "down payment" for three different checks. Keep them separate when you talk to a lender:

  • Equity in the project. Cash you bring, plus equity in land you already own, measured against the lender's total project cost.
  • Cash to close. The money due at the construction closing for your contribution, plus closing costs the program does not roll into the loan. The CFPB Loan Estimate calls this Estimated Cash to Close. Read that line, not a verbal percentage.
  • Reserves. Extra cash some lenders want left in the bank after closing, so interest, taxes, or insurance can be paid if a draw is delayed.

ROSÖ Homes is the builder, not the lender. We do not originate loans, set rates, or decide how much equity a program requires. We can put a fixed construction price and a clear scope in front of you so the lender's math starts from a real number.

Cash, land equity, or both

Two buyers can both be asked for "20 percent" and show up with very different checks. One is buying the lot and building in one loan. The other has owned the land for years. The lender's form decides which story applies. Ask that question before you move money.

You are buying the lot and building together

Here the down payment is usually cash. The lender adds the land price and the construction contract, then asks you to cover a share of that total plus closing costs. If the lot is $200,000 and the build contract is $600,000, a 20 percent equity rule is not 20 percent of the house alone. It is 20 percent of the project the lender is willing to count. Get the lender's definition of "project" in writing. Some use contract price. Some use the lower of contract price and appraised value.

You already own the lot

Land equity can replace some or all of the cash down payment, but only if the lender counts it. Equity is not what you paid and not what a neighbor's lot listed for. It is the value the lender accepts, minus any lot loan, lien, or other debt tied to the dirt.

A lot you own free and clear may cover the whole contribution on one program and only part of it on another. A lot with a remaining lot-loan balance may add little until that loan is paid off or wrapped into the new loan. Only the new lender can say which.

Do not assume a prior lot loan rolls forward. Our guide to a lot loan then a construction loan in Texas covers the sequencing question. This article stays on the contribution itself: what the lender counts, and what you still wire.

Gift funds and sold assets

Some programs allow a gift from a family member, or proceeds from a sale, if the paper trail is clean. Seasoning rules differ. A large deposit that shows up the week you apply can stall a file even when the money is real. Ask what documentation the lender needs before you transfer anything.

What changes the percentage a lender asks for

Published ranges are marketing, not your approval. Texas lenders and mortgage guides commonly describe construction down payments from about 5 percent on a narrow program to 20 or 30 percent on a standard custom build. Treat every one of those figures as someone else's loan, not yours. The CFPB notes that construction loans are often short-term and carry higher rates than a mortgage on a finished home, which is one reason the equity ask is larger than a typical purchase.

These are the levers buyers in Dallas-Fort Worth actually run into. None of them is a promise that a lower number is available.

  • Occupancy. A home you will live in is usually treated differently from a second home or a rental. Confirm which box your file is in.
  • Credit, income, and reserves. A stronger file can qualify for a smaller cash contribution. It does not guarantee one.
  • Loan type. A one-time-close construction-to-permanent loan, a two-close construction loan plus a later mortgage, and a government program each have their own equity rules. Compare the cash due at the construction closing, not the brochure rate.
  • Land as collateral. Owned land can lower the cash you bring. It does not lower the builder's price.
  • Completed value versus cost. If the appraisal of the finished home comes in below the project cost, the lender may ask for more cash so the loan still fits its loan-to-value cap. That is an appraisal question. Our note on a custom home construction loan appraisal in Texas walks through the value side. Do not restage it here as a pricing negotiation.
  • Spec versus true custom. A finished spec home can look like a normal purchase. A design-build home on your lot is underwritten on plans, a contract, and a lot. The down payment conversation belongs to the second case.

If a lender quotes 10 percent and another quotes 25 percent, ask each one to show the base number, the percent, and the cash due at closing. A lower percent on a higher project total can cost more cash. Line the quotes up this way before you pick a program:

  • Project total. Lot value plus the fixed build contract, plus any site cost that lender includes. Write the dollar figure, not a range.
  • Equity percent and basis. Cost, appraised value, or the lower of the two. A percent without a basis is not a quote.
  • Land equity accepted. The dollar value that lender will credit, and any lot-loan payoff it subtracts first.
  • Cash equity still due. Required equity minus accepted land equity. This can be zero and you can still owe cash at closing.
  • Estimated Cash to Close. The Loan Estimate line, which adds closing costs, prepaids, and any shortage.
  • Reserves left after closing. Months of interest, taxes, and insurance that must stay in the bank. This is extra cash, not part of the percent.
  • End of the build. One-time close into a permanent mortgage, or a second closing. Ask which one changes the cash you need later.

How to line up the builder price with the lender's number

The down payment is a percent of something. If that something moves, the cash you owe moves with it. This is the part a builder can make solid, and it is where custom-home buyers in DFW lose time.

ROSÖ Homes prices custom construction at $175 per square foot of Total Area Under Roof, with a 2,000 square foot minimum, and design is included. Total Area Under Roof is not the same as heated living area. Garages, porches, and covered outdoor space sit in the roof number the price uses.

A 2,400 square foot living area with a 600 square foot garage and a 200 square foot porch is not a 2,400 square foot price. Walk the measurement with us before you send a square-foot guess to a lender. The Texas custom home cost per square foot page explains that measurement. The Dallas custom home cost guide holds the broader budget, including land and site work, which this article does not restate.

A fixed price before groundbreaking gives the lender a contract figure that is not a cost-plus estimate. ROSÖ Homes also states a 120-day construction timeline from groundbreaking and a guaranteed cost at least 10 percent below other DFW custom builders. Those are builder commitments about schedule and price position. They are not a financing term, and they do not change your lender's equity percentage. What they do change is the quality of the number the lender underwrites. A moving allowance schedule makes the "total project" a guess. A fixed contract makes it a document.

Still keep the builder contract and the loan budget as two stacks of paper.

  • In the builder contract: the home, the included specifications, and the fixed construction price on a TAUR basis.
  • Often outside that price: the lot, site work beyond an agreed allowance, surveys, permits that sit with the owner, and utility extensions on a rural parcel. Confirm the line with us for your lot. Do not assume.
  • In the loan, if the lender agrees: some of those owner costs, closing costs, and an interest reserve. Only the lender's written list counts.
  • Usually cash, not part of the down payment percent: builder's risk insurance, deposits a vendor wants before the first draw, and moving costs. See builder's risk insurance for a Texas custom home for the insurance piece, and closing costs on a custom new build in Texas for the cost stack at the end. Neither replaces the equity requirement.

A contingency is also separate. A custom home contingency budget in Texas is money for changes and surprises after you sign. Some buyers hold it in savings. Some ask whether the lender will add it to the loan. That choice changes cash needs. It does not change the fact that a down payment and a contingency answer different questions.

A worked example you can rebuild with your own figures

Use this only as arithmetic. It is not a ROSÖ quote, not a rate, and not a lender approval. Swap in your lot, your contract, and the percent your lender writes down.

Picture a lot you already own free and clear, and a fixed build contract of 4,000 square feet under roof at ROSÖ Homes' $175 per square foot rate. The lender in this example defines total project cost as the lot value it accepts plus that contract. It then asks for 20 percent equity in that total. If the accepted lot value covers the whole 20 percent, cash equity due on the down payment is zero. You may still need cash for closing costs, prepaid interest, insurance, and any reserve on the Loan Estimate. Those lines are not the down payment.

Change one fact and the check changes. If that same sample lender counted only part of the land value, a cash gap would remain before closing costs. If you do not own the lot, the full sample equity amount is cash, and the lot purchase has to sit inside the loan or be paid beside it. If the appraisal of the finished home limits the loan, the cash gap can grow even though the builder price did not.

Run the same sheet at a lower percent and a higher percent before you fall in love with a plan. The dollar gap between those two equity rules is large on a full custom-home project. Land you already own can absorb a lot of that spread. Land you still have to buy does not.

Interest on the money the lender has already released is a different bill. It depends on the draw balance and the rate, and it can be reserved inside the loan or paid monthly. That mechanic lives in how construction loan interest works on a Texas custom home. Do not fold it into the down payment. The construction loan draw schedule is the third piece: when funds leave the lender, not how much equity you posted to open the loan.

Questions to ask the lender before you move cash

Take a fixed price, a site plan, and your lot paperwork to the lender. Then ask these in order. Write the answers next to the Loan Estimate when it arrives. The CFPB's guidance is to request more than one Loan Estimate and to question anything that does not match the conversation. That advice fits a construction file as well as a purchase, with one extra check: the purpose line should say construction, not a plain purchase, unless you are buying a finished house.

  1. What is the total project cost you will use, and does it include the lot, the build contract, site work, and closing costs?
  2. What percent equity do you require, and is it based on cost, on appraised value, or on the lower of the two?
  3. If I already own the land, how will you value it, and what payoff or lien has to be cleared first?
  4. What is my Estimated Cash to Close, separate from any equity the land already covers?
  5. Do you require reserves after closing, and for how many months of interest, taxes, and insurance?
  6. Is this a one-time close or a two-close loan, and does the equity requirement change when the loan converts?
  7. Which owner-paid costs can be inside the loan, and which must be cash?
  8. What happens to my cash contribution if the appraisal comes in below the contract?
  9. Are gift funds allowed, and how long does my own cash need to be seasoned?
  10. Which version of the plans and the builder contract do you need before you will lock a number?

If two lenders answer question two differently, you do not have a disagreement about ROSÖ Homes. You have two programs. Compare cash to close, reserves, and what happens at the end of construction. A pretty rate on a loan that demands more cash than you have is not the cheaper path.

What to have ready before the construction closing

You can do this prep while the design is still moving. You should not wire a large equity deposit, or sell an investment to raise it, until the lender has named the number.

From the builder

Ask us for the fixed contract price, what Total Area Under Roof includes, the specification list, and the exclusions. A lender cannot underwrite "we will figure allowances later." If you want a cost-plus comparison, read fixed price versus cost plus first, then bring the fixed number to the bank. ROSÖ Homes builds on your lot or in our communities across the Dallas-Fort Worth metroplex. Financing choices at a high level sit on our new construction financing options overview, which points you back to your own lender for terms.

From you

Gather the lot contract or deed, any existing loan statement, a recent survey if you have one, and two or three months of statements for the account that will send the cash. If a relative is gifting funds, ask the lender for its gift-letter form before the money moves. Large, unexplained deposits are a common reason construction files stall in underwriting.

From the lender

You want the equity percent, the project total it applies to, the cash to close, and a list of costs that cannot be financed. Put the builder contract, the land file, and that lender sheet in one folder. When a number changes, update the sheet the same day. Buyers who track this on a notes app usually discover the gap at the closing table.

A practical order that keeps you from raising cash twice:

  • Confirm the lot can be built on, and get a fixed construction price.
  • Ask two lenders how they treat land equity and what cash remains.
  • Read both Loan Estimates down to Estimated Cash to Close.
  • Only then move gift funds, sell assets, or increase the cash you plan to bring.

Mistakes that make the down payment bigger than you planned

Most of these are paperwork mistakes, not personal ones. They still change the wire.

  • Using living area instead of Total Area Under Roof. The contract price comes in higher than the figure you gave the lender, and the equity dollars rise with it.
  • Counting the lot twice, or not at all. Owning the land is not the same as the lender accepting that value. Paying cash for a lot outside the loan can help or hurt depending on whether a later construction lender will credit it.
  • Treating closing costs as the down payment. You can "have the 20 percent" and still be short on cash to close.
  • Forgetting reserves. A lender that wants six months of payments left in the bank is asking for cash on top of equity.
  • Letting allowances float. If the contract price is not fixed, the lender may underwrite a higher contingency or delay the commitment. Either result can increase what you bring.
  • Assuming the builder's timeline changes the loan. A 120-day build can reduce how long interest runs. It does not set your down payment. Ask the lender whether a shorter schedule changes reserves or the interest reserve, and get that answer from them.
  • Comparing a spec-home deal to a custom build. A finished new house with a 5 percent purchase program is a different product. Do not budget your lot build as if it were that listing.

The fix is dull and effective. One project total, one equity rule, one cash-to-close figure, each written by the lender, each tied to the builder contract you actually signed.

Frequently Asked Questions

Do construction loans require 20 percent down in Texas?

Often, but not always. Lender guides for Texas custom homes commonly cite about 20 percent, with some programs lower and some at 25 or 30 percent. The figure depends on the loan type, occupancy, credit, and whether land equity counts. Ask your lender for the percent and the dollar cash to close. ROSÖ Homes does not set either number.

Can I use land I already own as the down payment?

You can often use land equity instead of cash, if that lender's program allows it and the land value covers the required share. The lender, not the builder, decides the value and whether an existing lot loan must be paid off first. Get the accepted equity amount in writing before you assume the cash contribution is zero.

Is the down payment the same as cash to close?

No. The down payment, or required equity, is your share of the project. Cash to close is what you still wire at closing, which can include that equity gap plus closing costs, prepaids, and reserves. The CFPB Loan Estimate lists Estimated Cash to Close. Read that line on a construction Loan Estimate the same way you would on a purchase.

Does a fixed builder price lower my construction loan down payment?

It does not change the lender's percentage. It does give the lender a contract amount that is less likely to move, so the dollar contribution is easier to predict. ROSÖ Homes prices at $175 per square foot of Total Area Under Roof, with a 2,000 square foot minimum. Your lender applies its own equity rule to the project total it approves.

Who decides the construction loan down payment, the builder or the lender?

The lender decides. ROSÖ Homes is a design-build custom home builder in Dallas-Fort Worth. We provide the plans, the fixed price, and the build. We do not originate the loan, quote a required percent, or calculate your interest. Bring our contract to your lender, then compare written Loan Estimates.

If you are planning a custom home on your own lot in Dallas-Fort Worth, bring your land file and a lender question list to a ROSÖ Homes consultation. We will price the home on a fixed TAUR basis so your lender can tell you the real cash and equity requirement. Call 972-945-7676 or book a consultation.

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