How to Choose Comps for ARV Without Chasing the Highest Sale
Nov 10, 2026
By Anthony Price
The house down the street sold for $320,000. That does not automatically make your fixer-upper a $320,000 house after repairs.
Maybe the other house has an extra bathroom, a better layout or a renovation your budget will not cover. Before you use that sale to set your offer, find out whether a buyer would see the two homes as real alternatives.
That is the job of comparable sales, often called comps. Here is a practical way to choose them without working backward from the price you want.
1. Describe the house you will actually finish
After-repair value, or ARV, is your estimate of what the house could sell for after the planned work. Start by writing down what that finished house will include.
- Property type, layout, bedrooms and bathrooms.
- Verified living area, lot size and important features.
- The repairs and finish level you expect to deliver.
- Any limitation the work will not solve, such as an awkward layout or road noise.
Fresh paint and new flooring do not turn an older basic kitchen into a fully remodeled one. Your repair budget and resale estimate need to describe the same project. If the scope is still unclear, start with how to estimate repairs before an offer.
2. Look for homes the same buyer would consider
Start in the property's own market area. Compare similar homes, rather than drawing a large circle until you find a price you like.
Location matters, but distance alone does not settle the question. A home across a major road or in a different subdivision may compete for different buyers. A slightly farther home may sometimes be a better match.
Look at property type, size, age, layout, lot, garage and condition. Note the differences instead of treating every three-bedroom house as interchangeable.
Fannie Mae's comparable-sales guidance emphasizes similar property characteristics and homes that compete in the same market. It also recognizes that the newest sale is not always the best comparison. Those are useful principles here, though an investor's worksheet is not a lender's appraisal.
3. Separate sold prices from asking prices
A closed sale shows a completed transaction. An active listing shows what the seller is asking. A pending listing shows that a deal is underway, but the final price and terms may not be public yet.
Keep those categories separate. Use active listings to understand today's competition. Do not quietly treat an asking price as money a buyer has already paid.
For each possible comp, record the sale price, closing date and source. Review the listing photos and description from the time of sale when available. A current photo may show work completed afterward. Check whether seller credits, unusual financing or a sale between related parties affected the recorded price.
Ask a knowledgeable local agent or appraiser to help verify details you cannot confirm. Public records and listing sites can disagree on living area, condition or sale details. Mark unanswered questions instead of choosing whichever number helps the deal.
4. Explain the differences before adjusting the price
Suppose one comp has a second bathroom and your property will still have only one. You need to understand what buyers in that market pay for the difference.
Do not automatically subtract the cost of building a bathroom. Construction cost and market value are different things. The same caution applies to garages, pools, finished basements and extra square footage.
Fannie Mae's adjustment guidance calls for market-supported adjustments rather than fixed rules of thumb. If a price adjustment is doing most of the work in your estimate, get better evidence or qualified help.
Price per square foot can flag a sale worth examining. It should not replace the comparison. Multiplying one larger home's price per square foot by your home's size assumes away differences you still need to check.
A made-up example: the highest sale is not the best match
Imagine you are reviewing a 1,400-square-foot, three-bedroom, one-bath house. Your plan is a clean midrange renovation, with no added bathroom. These numbers are fictional and do not describe any local market:
- Sale A: $255,000. Similar size and layout in the same subdivision, with a finish level close to your plan.
- Sale B: $320,000. Larger, with two bathrooms, a garage and a higher-end renovation.
- Sale C: $262,000. Similar size and one bathroom, but on a quieter street. Its sale is older, so market changes need checking.
Sale B is the exciting number. It also needs the most explanation. Averaging all three prices would give you $279,000, but the arithmetic would not make the homes equally comparable.
Sales A and C deserve closer review because their features are more relevant to the planned house. That still does not prove a $255,000 to $262,000 ARV. You need to check the sale details, condition, location differences and what has changed since they sold.
The useful outcome is a better question: what evidence supports the finished house you are actually creating?
5. Keep a supported estimate and a downside case
Once you have a reasonable working estimate, test the deal at a lower resale price too. Keep the renovation, financing, holding and selling costs visible.
For example, if a hypothetical resale falls from $270,000 to $250,000, gross sale proceeds fall by $20,000. Actual profit changes also depend on costs, fees and the time it takes to sell. Money budgeted for repairs does not automatically cover a lower resale price.
If you are wholesaling, carry the revised value into your offer analysis. Our wholesale offer walkthrough shows how the value assumption affects the preliminary seller offer.
Do not raise ARV just because the seller's price does not work. Get better facts, change the plan where realistic, or pass on the deal.
Before you rely on the number
You should be able to answer these five questions:
- What exact finished condition am I pricing?
- Which closed sales best match that house, and why?
- What important differences or sale details remain unverified?
- What supports any price adjustments or market-change assumptions?
- Does the deal still make sense with a lower resale price or a longer hold?
An online estimate can be another data point, but it does not settle those questions. The CFPB explains why valuations can differ: they may use different comparable sales, methods, dates or purposes. Get local professional help when the value is uncertain or the decision depends on a narrow margin.
Put the checked assumptions to work
The Ultimate Real Estate Deal Analyzer gives you six strategy calculators in an editable Excel workbook, plus a PDF Quick Start Guide, for $47 USD one time.
Use it to see how a lower resale price or higher costs changes the numbers. It does not select comps or verify property value for you. Check the guide and enter the assumptions needed for each strategy calculator; do not assume numbers carry between worksheets. If you own the Rental Purchase and Ownership Toolkit, the Analyzer is already included.