Northern Virginia New Construction Cost Calculator

What we are actually measuring

The price in the brochure is not the same as the finished plan.

I want you to see three different things: what becomes part of the contract price, when your cash may leave your account, and what you may still buy after closing. That keeps a deposit from being counted twice and keeps blinds, landscaping, or temporary housing from disappearing from the conversation.

Let’s start with the number the builder showed you.

Step 1 · Base price

What is the starting price for the home?

Use the written price for the floor plan or inventory home—not the model-home value and not your target budget.

If you are just beginning: the advertised number is enough for now. You can replace it later when the builder gives you a current price sheet.

Builder base price

Our calculation begins at $700,000.

Now let’s price the homesite you would actually choose.

Step 2 · Homesite

Does the selected lot carry a premium?

A cul-de-sac, wooded view, larger yard, walkout condition, or preferred orientation may cost more. Use the builder’s current lot sheet.

If you have not chosen a lot: enter $0 for a first look, but remember that the available homesite—not the model-home lot—can change both your price and resale considerations.

Lot premium

Enter $0 only if the written homesite price truly has no premium.

Why a lot premium matters beyond today

It raises the contract price immediately. Whether a future buyer or appraiser assigns the same value later is a different question, so I would evaluate the homesite itself—not assume every dollar of premium is automatically recovered.

Base price plus homesite: $725,000.

Next, separate changes to the house from finishes you select later.

Step 3 · Options

What are you adding to the home?

Structural choices can affect the footprint or construction. Design-center choices usually affect finishes. Keeping them separate makes it easier to decide what must be done now and what could wait.

You do not need a finished selection sheet: use the builder’s allowance or your best estimate today. The purpose is to expose the likely gap between the base home and the home you would actually choose.

Structural options

Examples: extension, bedroom, bathroom, garage, basement, elevation.

Design-center selections

Examples: cabinets, flooring, counters, fixtures, electrical, appliances.

Other contract additions

Change orders or other priced contract items.

Current price before incentives: $810,000.

Tell me what the incentive actually does—not just its headline amount.

Step 4 · Incentives

Where is the builder’s money going?

A price reduction, option allowance, and closing-cost credit change different parts of the calculation. Enter each only in the bucket authorized by the written offer.

The headline amount is not always cash: a credit may be limited to eligible closing expenses, and a lender credit may be connected to the interest rate. The written allocation matters more than the advertisement.

Price reduction

Upgrade allowance

Reduces what you pay for selected options; do not repeat it as a closing credit.

Builder closing-cost credit

Lender credit

A lender credit can be connected to the rate. Compare written Loan Estimates.

Could part of the credit go unused?

Yes. The contract, loan program, appraisal, contribution limits, and amount of eligible closing costs determine what can actually be used. This tool caps displayed closing credits at the estimated closing-cost amount, but your lender must verify the real limit.

Adjusted contract price: $810,000.

Now let’s account for when cash leaves your account.

Step 5 · Cash timing

What will you pay before and at closing?

A deposit is usually part of the purchase funds, not an extra price. We will show it when paid and subtract the credited amount from estimated cash at closing.

If these numbers are unfamiliar: start with a percentage. If your lender has given you a dollar amount, switch to dollars and enter that exact figure. This is a planning estimate—not a demand for payment.

Down payment

Enter the percentage you expect to pay from your own funds.

Estimated buyer closing costs

Planning placeholder only. Replace it with a written Loan Estimate and settlement quote.

Contract deposit already paid

Additional deposits before closing

Inspections and consultants

Shown before closing and not assumed to be credited back.

HOA initiation or capital contribution

Use $0 if this is already included in your closing-cost estimate.

Estimated remaining cash at closing: —.

Finally, add the items the builder may not hand you with the keys.

Step 6 · Move-in

What will you still need before the home feels finished?

Put after-closing items here only when they are not already included in the builder contract or your closing-cost estimate.

It is okay to use $0: only include an item when the builder is not providing it and you realistically expect to buy it. This prevents the calculator from counting the same cost twice.

Appliances and window treatments

Landscaping, fence, or deck

Moving or temporary housing

Other move-in cost

After-closing setup currently adds: $25,000.

Here is the price I would use to begin the conversation.

Your answer

Planning estimate · based on your entries

Your adjusted contract price is $810,000.

Above base price—

Cash through move-in—

Estimated loan amount—

How the builder’s base price becomes your plan

The first bridge shows what changes the contract price. The incentive map then separates contract reductions from credits that may reduce eligible cash at closing.

Advertised base price

—

Homesite premium

—

Options and selections

—

Upgrade allowance applied

—

Price reduction

—

Adjusted contract price—

What the incentives actually change

These two buckets affect different totals and should not be combined into one headline number.

Reduces the contract price

Price reduction—

Option allowance applied—

May reduce cash at closing

Closing credits entered—

Usable in this estimate—

Potentially unused—

When your cash is expected to leave your account

Before closing—

At closing, after usable credits—

After closing—

How the estimate is builtAdjusted contract price—
Estimated closing costs—
Closing credits entered—
Usable closing credits—
Potentially unused credits—
Inspections and consultants—
HOA initiation/capital contribution—
After-closing setup—
Project cost through move-in—

Edit one answer without starting over

Base price—Lot premium—Options—Incentives—Cash timingReview Move-in items—

Email my plan Compare the incentive Refine closing costs

Keep your plan

Want me to quality-check and email this worksheet?

You can use and adjust the calculator freely. To retain the personalized plan, submit your email and I will review the entries before sending it. No cost. No obligation.

Common questions

What I would want you to understand before signing

Is the base price the price I will pay?

Only when the written contract shows no lot premium, options, selections, change orders, or other additions. Build the estimate from the builder’s current written documents, not the model-home presentation.

Is a lot premium automatically recovered when I sell?

No. A lot may be more desirable, but future buyers and appraisers determine how much value they assign to it. Treat the premium as part of today’s price, not a guaranteed future return.

Are design-center deposits an additional cost?

Not when the contract credits them toward the purchase. They still matter because the cash leaves your account before closing. Confirm refundability and credit treatment in the written contract.

Can every builder credit reduce my cash to close?

No. Eligibility, loan-program limits, appraisal, lender rules, the contract, and the amount of eligible closing costs determine how much can be used. Ask for a written allocation and compare Loan Estimates.

Will all upgrades be financed?

Only when they become part of the contract price and the lender and appraisal support that amount. Items purchased separately before or after closing may require cash.

Does this calculate the monthly mortgage payment?

This tool estimates the adjusted contract price and cash timeline. Use the Northern Virginia mortgage calculator to test the monthly payment using the loan amount and written rate you are considering.

Important limitations

Use this as a planning conversation—not a builder quote or loan document.

Educational estimate. This tool provides a planning estimate based on the information you enter and the assumptions shown. It is not financial, lending, legal, tax, insurance, appraisal, inspection, warranty, contract, or settlement advice; a credit decision or preapproval; a commitment to lend; a property valuation; or a guarantee of costs, savings, eligibility, or future results.

Builder prices, incentives, option availability, deposits, contribution limits, appraisal treatment, construction timing, and lender terms can change and are controlled by written documents. This is not a lender-issued Loan Estimate. Compare the builder’s contract and addenda, included-features list, option sheets, deposit schedule, current written Loan Estimates, settlement quote, and property-specific association information.

No brokerage relationship is created. Using this tool, requesting results, submitting a form, or contacting Ask A Walker does not by itself create a client, agency, brokerage, fiduciary, or other professional relationship. Any representation will be described in a separate written agreement signed by the applicable parties.

Sources and calculation notes

How the estimate is built

The contract price adds the base home, lot premium, and net contract options, then subtracts price reductions. Deposits are shown when paid and credited against closing cash rather than counted as a second purchase cost. Closing credits are capped at the displayed estimated closing-cost amount; the lender determines the usable amount.

Research last reviewed: August 14, 2026. Next scheduled review: September 2026.

What will this new home really cost?

The price in the brochure is not the same as the finished plan.

What is the starting price for the home?

Does the selected lot carry a premium?

What are you adding to the home?

Where is the builder’s money going?

What will you pay before and at closing?

What will you still need before the home feels finished?

Your adjusted contract price is $810,000.

How the builder’s base price becomes your plan

How the estimate is built

Want me to quality-check and email this worksheet?

What I would want you to understand before signing

Use this as a planning conversation—not a builder quote or loan document.

How the estimate is built

$810,000 contract price

We do the research
so you don’t have to.

The price in the brochure is not the same as the finished plan.

What is the starting price for the home?

Does the selected lot carry a premium?

What are you adding to the home?

Where is the builder’s money going?

What will you pay before and at closing?

What will you still need before the home feels finished?

Your adjusted contract price is $810,000.

How the builder’s base price becomes your plan

How the estimate is built

Want me to quality-check and email this worksheet?

What I would want you to understand before signing

Use this as a planning conversation—not a builder quote or loan document.

How the estimate is built

We do the researchso you don’t have to.

We do the research
so you don’t have to.