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How to Select the Best Comps for a Home Appraisal (Pro Tips!)

How to select the best comps for an accurate home appraisal

To select the best comps for an appraisal, you need at least 3 sold and 3 active listings. The most important factor is location (within 0.5-1 mile, in a similar community). The next crucial factor is condition and year built, noting all upgrades or repairs. Finally, compare features (like room count and layout) and rate each comp as “superior, equal, or inferior” to your property. This process helps you determine a realistic “range of value” for your home.

Knowing how to choose home comps is crucial for an accurate appraisal. Whether you’re selling, refinancing, or just curious about your property’s value, selecting the right comparables ensures you get the most realistic estimate. You might already have some experience with this, even if you don’t realize it! As professional appraisers, we want to share our expert insights on the process to help you make informed decisions.

Choosing comps for your property isn’t as complicated as it looks. In fact, you probably already have some experience with this. As professional appraisers, we just want to offer our take on the process and hope it is of value to you in selling your home.

What’s a Comp? Comps, or comparables, are properties that are similar enough to your property to be useful for comparison. Selecting the best comps is a straightforward process and requires you to evaluate each property objectively.

To start out, we generally want to look at properties that were recently sold, and those that are currently on the market. The traditional number of comps that appraisers and agents select are three sold and three active listings. You can include more in your own analysis but use that number at a minimum.

Distance & Location

Location is more important than anything to property value. Location determines demand and the unique set of external economic factors that influence the value. Choose properties within .5-1 miles in most urban and suburban communities. If the property usage varies within this search radius, use a polygon search tool if available to select the areas that include similar residences.

As the condition, style, and age of properties within a small geographic area can vary drastically, look for properties that are in a similar community to yours, and exclude those properties that might not suit the ideal buyer for your property. Buyers tend to shop within a range of affordability that is determined by their income, credit, and goals. Don’t choose overpriced listings or homes that are super-upgraded (unless yours is as well).

Condition & Year Built

How about condition? Condition is the next big thing. Has the roof been replaced? The HVAC? What about the paint, foundation, plumbing? We could go on and on. Carefully read the listing notes to see what has been upgraded, repaired, or needs to be addressed. Note the important facts as you add a potential comp to your list. You’ll need to address these point-by-point when you’re later making your estimate of value. The year built is important as values tend to decrease as properties get older.

A note on estimate of value: appraisals and valuations are only expert estimates. They don’t guarantee the value or assert that it is the one true price of the property, but rather offer an opinion of value as of the date of the inspection that is supported by market data, experience, and professional insight. Keep in mind that you’re only estimating the value and that different appraisers and third parties may reach varying conclusions. Be observant of bias or conflicts of interest present in transactions that could skew the results of an appraisal.

Features & Amenities

The features are where you have to take some time to sift through the details. If you’re in a neighborhood with varied designs, it might take some extra time to carefully collect and balance all the details. Properties in subdivisions that have a high degree of conformity tend to be easier to compare when they have similar room counts, layouts, lot sizes, living area, etc. As before, keep notes for each property and give a general rating of superior, equal, or inferior to each.

As you proceed with your valuation, you’ll begin to get an idea where each property falls in the spectrum of superior or inferior to your property. Even without line-item adjustments, you can get an excellent idea of the range of value for your home. This will help you with making early decisions about whether to speak with lending and real estate professionals about refinancing or listing your home for sale.

What are adjustments? These are the additions and subtractions we make from the value of comparables to account for differences in value created by disparities in features, functional utility, and condition.

Economic & Functional Obsolescence

Don’t forget about economic obsolescence. What is that again? This is how the state of the community affects the value of the property. When an area is in economic decline, it tends to have an adverse effect on value. The problem in conducting appraisals is that economic obsolescence can vary from subdivision to subdivision, even though they may be adjacent. For example, a new home development in close proximity to an existing community can adversely affect the value of the older homes due to their relatively higher need of repairs, updates, efficiency upgrades, and modernization, as well as the inherent fact of their location in an older community. New homes also have improved functional utility in terms of modern features, open floor plans, and other fixtures that appeal to contemporary buyers.

If you have any questions about the appraisal process or would like further information, please reach out to our team.

Frequently Asked Questions (FAQs)

1. What is a “comp” and how many do I need?
A “comp,” or comparable, is a property that is similar enough to your own to be useful for comparison. The blog states that the traditional number appraisers and agents use is a minimum of three recently sold properties and three properties that are currently active on the market.
2. What is the most important factor when choosing comps?
Location. The blog states that “location is more important than anything” because it determines demand and local economic factors. You should choose properties within a 0.5 to 1-mile radius and ensure they are in a community that is similar to yours.
3. What is the next most important factor after location?
Condition and year built. This is described as the “next big thing.” You must carefully review a comp’s condition, noting any upgrades (like a new roof or HVAC), repairs, or pending issues. A property’s age is also critical, as values tend to decrease as properties get older.
4. What is an appraisal “adjustment”?
According to the blog, adjustments are the “additions and subtractions” an appraiser makes to the value of a comparable property. This is done to account for the differences in value caused by disparities in features, functional utility, and condition between the comp and your home.
5. What is “economic obsolescence” and how does it affect value?
Economic obsolescence is how the economic state of the community affects a property’s value. If an area is in economic decline, it will have an adverse effect on value. A common example is when a new home development is built near an older community, which can lower the value of the older homes because they are less modern and require more repairs.

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