An as-completed appraisal estimates what a new home will be worth once it’s finished, and a subject-to-completion appraisal attaches a condition to that number: the value only holds if the builder constructs the home exactly as the plans and specifications promised. In practice, lenders use both together on construction loans, because the collateral securing the money being advanced doesn’t fully exist yet. Understanding the difference between an as-completed vs subject-to appraisal matters because the two phrases describe the same report viewed from different angles, and both have to line up before a construction loan converts into a permanent mortgage.
What Each Appraisal Type Actually Means
An as-completed appraisal answers a single question: what will this home be worth on the open market once the builder finishes? The appraiser treats the home as if it already exists in its completed state, even when the lot is bare dirt on the day of the visit. Professional appraisal standards call this a “hypothetical condition,” which simply means the appraiser is allowed to value something not yet built by assuming it will be built according to the submitted plans. The resulting figure reflects both the projected utility of the finished home and the market conditions in the surrounding area.
A subject-to-completion appraisal adds a condition to that value estimate. The appraised number is only valid if the builder follows the exact designs, materials, and specifications used in the initial evaluation. It’s a conditional promise. The lender agrees to finance a home worth a certain amount, but only if that specific home gets built. If the builder swaps materials, changes the floor plan, or downgrades fixtures, the condition isn’t met and the appraised value no longer holds.
So the two labels aren’t competing products. An as-completed value is the number itself; “subject to completion per plans and specs” is the condition the appraiser attaches to it. You’ll usually see both phrases somewhere in a construction loan appraisal because the lender needs the value and the condition that keeps it valid.
Why the Condition Matters at Closing
The subject-to condition is what links the appraisal to the money. A construction lender is willing to advance funds based on a projected value, but only because the appraiser said that value depends on specific work being completed in a specific way. If something changes mid-build, the appraised value no longer applies to the home that actually got built, and that mismatch can stall or derail the conversion from a construction loan into a permanent mortgage. For borrowers, the practical takeaway is that mid-project changes aren’t just a conversation with the builder. They’re a conversation with the lender too.
Documentation the Appraiser Needs
Before the appraiser can value a home that doesn’t exist yet, they need a detailed picture of what’s going to be built. The homeowner or builder typically provides:
- Blueprints and floor plans showing the layout, room dimensions, and gross living area. Accurate square footage matters because the appraiser compares the proposed home’s size against recently sold homes in the area.
- A specifications sheet, sometimes called a spec book, detailing every material going into the build, from flooring grade to appliance brands. The quality of finishes directly affects the appraised value.
- A plot plan showing exactly where the house sits on the lot, including setbacks from property lines and any utility easements.
- The construction contract or cost breakdown, which gives the appraiser the total budget and the financial scope of the improvements being made to the land.
Government-backed loans can raise the documentation bar. USDA loans, for example, require evidence of certified plans and specifications along with construction inspections and thermal performance standards.1USDA Rural Development. USDA Rural Development Appraisal and Property Eligibility Training The more precise your package, the fewer assumptions the appraiser has to make, and assumptions tend to work against you.
How the Appraiser Determines Value
Once the documentation is in hand, the appraiser visits the lot or partially finished structure to verify the location, topography, and surrounding neighborhood. The real work happens when they search for comparable sales, recently sold homes that match the quality, size, and features of the proposed project. The appraiser then adjusts those sale prices to account for differences, adding value for a three-car garage when the comp only had a two-car, or subtracting for a smaller lot.
A common misconception is that comps must come from within one mile and sell within the past twelve months. Fannie Mae’s guidelines are more flexible. The preference is for sales from the same neighborhood or subdivision, and closings within the past twelve months are a starting point, but the appraiser can use older or more distant sales when they’re genuinely the best match for the subject property.2Fannie Mae. Comparable Sales In rural areas or markets with limited activity, the appraiser may pull comps from competing neighborhoods entirely, as long as they explain why those sales are relevant.
Beyond raw comparison, the appraiser considers whether your proposed home fits the neighborhood. A 5,000-square-foot custom home in a subdivision of 1,800-square-foot ranches is what appraisers call an over-improvement. It costs more to build than the neighborhood will support in resale value. Lenders pay close attention because it affects whether they could recover their money in a foreclosure. If the appraiser flags your project as an over-improvement, expect a lower valuation relative to your construction costs.
Final Inspection and the Completion Report
When the builder finishes, the appraiser returns for a final inspection to confirm the completed work matches the original plans and specifications. This step uses Fannie Mae Form 1004D, the standard Appraisal Update and/or Completion Report used across the industry for one-to-four-unit properties.3Fannie Mae. Appraisal Report Forms and Exhibits The appraiser photographs the completed home and walks through it, checking that every item in the original spec sheet is present.
This is where the subject-to condition gets tested. If the builder substituted cheaper laminate where the plans called for marble countertops, or reduced the garage from three bays to two, the appraiser notes the discrepancy. Material deviations can lower the final value, which in turn affects the loan-to-value ratio the lender underwrote. In serious cases, the lender may require the builder to correct the work before releasing final funds.
Successful verification leads to a completion certificate, which the lender needs to close out the construction phase and transition the debt into a permanent mortgage. The final inspection typically costs $150 to $250 depending on location and complexity. For VA loans specifically, the re-inspection fee is capped at $150 when the appraiser physically visits the property.4U.S. Department of Veterans Affairs. VA Appraisal Fee Schedules and Timeliness Requirements
When the Appraisal Expires
Construction takes time, and appraisals don’t stay valid forever. Under Fannie Mae’s standard guidelines, a property must be appraised within twelve months before the date of the note and mortgage. If the original appraisal is more than four months old but less than twelve months old at closing, the appraiser has to perform an update, including a re-inspection of the exterior and a review of current market data to confirm the property hasn’t lost value.5Fannie Mae. Appraisal Age and Use Requirements Past twelve months, you need an entirely new report.
Construction borrowers get one meaningful break here. Fannie Mae’s twelve-month appraisal age limit does not apply to single-close construction-to-permanent loans.5Fannie Mae. Appraisal Age and Use Requirements Because these loans combine the construction phase and the permanent mortgage into one closing, the original appraisal can carry through even if building takes longer than expected. If you’re using a two-close structure, a separate construction loan that later refinances into a permanent mortgage, the standard expiration rules apply, and delays can force you into a costly re-appraisal or update right before the permanent loan closes.
What to Do When the Number Comes In Low
A low appraisal on new construction is more common than most borrowers expect, and it creates an immediate problem. The lender won’t finance more than the appraised value supports, so the gap between the appraisal and your construction costs becomes your responsibility unless you can get the number changed.
Your first move is requesting a Reconsideration of Value, or ROV. Under HUD guidelines for FHA loans, the lender must give you a clear written explanation of the ROV process both at application and when they deliver the appraisal report. You can submit up to five alternative comparable sales you believe better reflect your home’s value, though you’re limited to one ROV request per appraisal. The lender’s underwriter reviews your submission before anything goes back to the appraiser, and the entire process must be resolved before closing. No ROV costs can be charged to the borrower.6U.S. Department of Housing and Urban Development. Mortgagee Letter 2024-07 – Appraisal Review and Reconsideration of Value Updates
One rule trips people up: never contact the appraiser directly. All communication about appraisal concerns goes through your lender. Reaching out yourself creates compliance problems that can make things worse. If you think the appraiser missed relevant sales or overlooked features in your spec sheet, gather the evidence and give it to your loan officer.
If the ROV doesn’t move the number, your remaining options are to cover the gap in cash, negotiate a lower price with the builder, reduce the scope of the project to bring costs in line with the appraised value, or switch lenders and start the appraisal over with a different firm. None of those are painless, which is why experienced builders push for a realistic conversation about comparable values before plans get finalized.
What a New Construction Appraisal Costs
A full as-completed appraisal for new construction generally runs between $500 and $800 for a standard single-family home, though complex custom builds, rural locations, or high-cost markets can push fees above $1,000. These are higher than appraisals on existing homes because the appraiser works from plans rather than a finished structure, which requires more analysis and documentation review. The fee is typically collected at the time of the loan application and is non-refundable even if the project falls through. Budget another $150 to $250 for the final inspection on top of the initial appraisal cost.