By Ken Clark Jr. Β· Certified Mortgage Advisor & Branch Manager Β· NMLS #225375 Last updated:
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Construction Loans

Construction Loan Appraisal: How a Home That Is Not Built Yet Gets Valued

✓ Written and reviewed by Ken Clark Jr., Certified Mortgage Advisor, NMLS #225375 . Published September 27, 2026 . Updated September 27, 2026

Your appraisal is based on plans, specs, and comparable sales, before a shovel hits the ground.

A construction loan appraisal estimates what your finished home and lot will be worth. Ken Clark Jr., Certified Mortgage Advisor with PRMG, explains how appraisers value homes from plans, how the appraisal sizes your loan, what to do if it comes in low, and how the completion report works at the end.

Talk Through My Build Construction Loan Overview
Short answer: A construction loan appraisal estimates the as-completed value of your home and lot, based on the plans, specifications, cost breakdown, builder contract, and comparable sales. The report is made subject to completion per plans and specs, and it helps set the maximum loan amount. At the end of the build, a completion report (Fannie Mae Form 1004D) confirms the home was finished as planned. On Fannie Mae single-closing loans, the appraisal commonly must be no more than 4 months old at closing.
At a glance
  • Type: as-completed value, subject to completion per plans and specs.
  • Based on: plans, specs, cost breakdown, contract, and comparable sales.
  • Sizes the loan: value drives the maximum loan amount.
  • Age: commonly no more than 4 months old at closing on Fannie Mae single-closing loans.
  • At the end: completion report, Form 1004D.
  • If low: bring cash, renegotiate, adjust plans, or request a reconsideration.
On this page
  1. How does a construction loan appraisal work?
  2. What does the appraiser need from me and my builder?
  3. How does the appraiser choose comparable sales?
  4. How does the appraisal affect my loan amount?
  5. What if the construction appraisal comes in low?
  6. How old can the appraisal be at closing?
  7. What happens at the end of construction?
  8. Example: closing a value gap (hypothetical)
  9. Ken's Take: help the appraiser help you
  10. FAQs

How does a construction loan appraisal work?

Short answer: the appraiser reviews your plans, specifications, cost breakdown, and builder contract, then compares the planned home to recent sales of similar homes nearby to estimate what it will be worth when finished.

The report is made "subject to" completion according to the plans and specifications. That means the value assumes the home is built exactly as described. The appraiser looks at square footage, bedroom and bathroom count, quality of finishes, lot size and location, and site features like a well, septic, or view. See construction loan requirements for the documents the appraiser needs.

What does the appraiser need from me and my builder?

Missing or vague specs are one of the most common reasons for a delayed or conservative appraisal. A detailed spec sheet helps the appraiser pick the right comparables.

How does the appraiser choose comparable sales?

Short answer: the appraiser looks for recent sales of similar homes, ideally newer construction of similar size, quality, and lot type, as close by as the market allows.

Rural lots, large acreage, and one-of-a-kind custom homes are harder to compare, so the appraiser may reach farther for sales or make larger adjustments. Features like a pool, shop, or guest house may be valued only as far as comparable sales support them. If you are building something unusual for the area, expect more scrutiny.

How does the appraisal affect my loan amount?

Short answer: the appraised as-completed value sets a ceiling on the loan. If you own the lot, the loan is generally measured against the as-completed value. If you are buying the lot, it is measured against the lower of total cost (lot plus construction) or the as-completed value.

That is Fannie Mae's single-closing framework, and government one-time close programs follow a similar logic. When you already own the land, a strong appraisal can let your land equity cover the down payment. See land equity.

What if the construction appraisal comes in low?

Short answer: you usually have a few options: bring more cash, renegotiate the contract with the builder, simplify the plans, use additional land equity, or ask for a reconsideration of value with better comparable sales.

A low appraisal is information, not a dead end. Sometimes the plans include features the local market does not pay for. Sometimes the appraiser missed a better comparable sale. We will look at the report with you and your builder and decide which lever makes the most sense. Because the loan cannot increase after closing, it is far better to solve a value gap before closing than after.

How old can the appraisal be at closing?

Short answer: on Fannie Mae single-closing construction-to-permanent loans, the appraisal commonly must be no more than 4 months old at closing. Other programs have their own age rules.

Construction files take time: builder registration, plans, and permits all have to come together, and in California permits are typically required before a one-time close loan closes. If the timeline stretches, an appraisal update may be needed. Planning the order of steps keeps you from paying for work twice.

What happens at the end of construction?

Short answer: the appraiser returns for a final inspection and completes a completion report, Fannie Mae Form 1004D, confirming the home was built according to the plans and specs.

Along with local inspections and a certificate of occupancy, the completion report is part of what allows the loan to convert to its permanent phase. Changes made during the build that were not documented can hold this up, which is why we ask you to tell us about change orders. See the draw process.

Example: closing a value gap (hypothetical)

Educational illustration only. Not an actual client, loan offer, or commitment to lend.

A couple in El Dorado County plans a $610,000 build on a lot they bought for $150,000, total cost $760,000. The as-completed appraisal comes in at $735,000 because the nearest newer homes are smaller. Since they are measured against the lower of cost or value, the gap reduces their maximum loan. They work with the builder to trim $15,000 in finish upgrades and add $10,000 of their own cash, closing the gap without changing the home's layout.

Ken's Take: help the appraiser help you

Where available: PRMG construction programs are available in every state where PRMG is licensed, which is all states except New York, including California and New Jersey, subject to eligibility and program guidelines. In California, building permits are typically required before a one-time close loan closes.

Frequently asked questions

Answered by Ken Clark Jr., Certified Mortgage Advisor. Program availability and requirements vary and are subject to change.

What is an as-completed appraisal?

An appraisal that estimates what the home and lot will be worth once construction is finished according to the plans and specifications.

What does subject to completion mean?

The value assumes the home is built exactly as described in the plans and specs. A final inspection later confirms it.

Who orders the construction appraisal?

The lender orders it through its appraisal process. Your builder supplies plans, specs, and the cost breakdown.

What if my construction appraisal is low?

Options commonly include bringing more cash, renegotiating with the builder, simplifying plans, using land equity, or requesting a reconsideration of value with better comparable sales.

How long is a construction appraisal good for?

On Fannie Mae single-closing loans it commonly must be no more than 4 months old at closing. Other programs vary.

What is Form 1004D?

Fannie Mae's appraisal update and completion report. At the end of construction it confirms the home was completed as planned.

Does the appraisal set my loan amount?

It sets a ceiling. For owned lots, the loan is generally measured against the as-completed value. For purchased lots, it is measured against the lower of total cost or as-completed value.

Can upgrades raise my appraisal?

Only as far as comparable sales support them. Some upgrades add less value than they cost.

Are rural or acreage lots harder to appraise?

Often yes, because comparable sales may be farther away or less similar, which can lead to larger adjustments.

Do change orders affect the final inspection?

They can. Undocumented changes may delay the completion report and the conversion to the permanent loan.

Related programs and guides

Construction Loans β†’Land Equity β†’Draw Process β†’Cost Overruns β†’One-Time Close β†’Requirements β†’

Want to pressure-test your plans before the appraisal?

Bring your lot, your plans, your builder, or just the idea. We will map which PRMG program may fit and what to gather first.

Talk Through My Build Call or Text (916) 275-3469

Sources consulted

Guidelines change. Verify current program requirements with Ken Clark Jr. before relying on them for a transaction.

Disclaimer: This content is for educational purposes only and is not a commitment to lend, a guarantee of approval, or a rate quote. Loan programs, down payment requirements, terms, and eligibility depend on borrower, property, project, builder, and program qualifications, are subject to underwriting, and vary by state. Not all applicants or projects will qualify. Builder registration is a documentation review for program eligibility and is not an endorsement of any builder. Equal Housing Opportunity. Paramount Residential Mortgage Group, Inc. (PRMG), NMLS #75243. Ken Clark Jr., NMLS #225375. PRMG is licensed in 49 states, excluding New York.

Ken Clark Jr., Certified Mortgage Advisor

About the Author: Ken Clark Jr.

Certified Mortgage Advisor and Branch Manager at PRMG Mortgage (NMLS #75243). 28 years in mortgage lending. Specializes in FHA, VA, conventional, DPA, jumbo, Non-QM, renovation, and construction financing for buyers and investors in Sacramento, New Jersey, and nationwide. PRMG is licensed in 49 states, excluding New York. Three-time Gold Award winner for Highly Reviewed Mortgage Team in Sacramento (2023, 2024, 2025). NMLS #225375.

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