# Real Estate Comps: A Modern Guide to Comparable Property Analysis By Opendoor Editorial Team | 2022-05-23 > Whether you’re buying or selling a home, real estate comparables or “comps” play a big role in determining the cost of the transaction. Comps help you and your real estate agent arrive at a price realistic for your housing market, and beyond that, you can leverage comps to make more informed decisions when considering offers on your home. ## Key Takeaways # Real Estate Comps: A Modern Guide to Comparable Property Analysis Real estate comps — comparable sales of similar homes nearby — are the foundation of nearly every home pricing decision. When you want to know what your house is worth, comps show you what buyers actually paid for properties like yours. This guide covers how to find comps, what makes a property a strong comparable, and how to use that data to estimate your home's value with confidence. [Get your offer](#) ## What are real estate comps Real estate comps — short for "comparables" — are recently sold homes similar to yours in location, size, condition, and features. They're the closest thing to a price tag your home has. When you want to know what your house is worth, comps show you what buyers actually paid for homes like yours in your area. The idea is simple: if a three-bedroom home with 1,800 square feet sold for $350,000 last month two streets over, that sale tells you something meaningful about your own three-bedroom, 1,800-square-foot home. Comps turn the abstract question of "what's my home worth?" into something concrete and grounded in real transactions. Real estate agents, appraisers, buyers, and sellers all use comps. They're the foundation of nearly every pricing decision in residential real estate. ## Why comparable home sales matter for pricing Pricing a home is tricky. Set the price too high, and your listing sits while buyers move on to other options. Price too low, and you leave money behind. Comps help you land in the right range because they reflect what the market has already accepted. Here's why comps carry so much weight: - **Accurate pricing:** Comps reveal what buyers actually paid, not what sellers hoped to get. That distinction matters when you're deciding on a list price. - **Negotiation support:** When a buyer questions your asking price or you want to back up an offer, comps give you data to point to. - **Lender requirements:** Mortgage lenders require [appraisals](https://www.opendoor.com/articles/home-appraisal-process) before approving loans. Appraisers rely heavily on comps to determine value, so if your home doesn't appraise at the contract price, the deal can stall. ## How to find comps for your house Finding comps has become much easier over the past decade. You have several options, and the right one depends on how much time you have and how precise you want to be. ### Request an instant home valuation online Online [valuation tools](https://www.opendoor.com/articles/how-opendoor-calculates-your-homes-value) pull comp data automatically and generate an estimate in seconds. They're the fastest way to get a starting point, though Zillow's Zestimate has a [1.9% median error rate](https://www.zillow.com/z/zestimate/) for on-market homes. Opendoor, for instance, provides a free, no-obligation cash offer based on comparable sales and local market data. [Get a cash offer](https://www.opendoor.com/address-entry) to see where your home stands without doing the research yourself. ### Search real estate websites for sold listings Most real estate websites let you filter by "sold" or "recently sold" properties. This is key: active listings show asking prices, while sold listings show actual sale prices. When you search, narrow your results by ZIP code, property type, bedroom count, and square footage. The goal is to find homes as similar to yours as possible. ### Ask a real estate agent for MLS comps Real estate agents have access to the Multiple Listing Service (MLS), a database with the most complete and accurate sales data available. The MLS often includes details that public websites miss, like seller concessions or how long a home sat on the market. Many agents will run a comparative market analysis (CMA) for free, hoping to earn your business down the road when you're ready to navigate the [various costs of selling](https://www.opendoor.com/articles/hidden-fees-when-selling-a-house). Even if you're not ready to sell, a CMA can be a useful reference. ### Look up public property records County assessor websites and tax records are free and publicly available. You can search by address to find the last recorded sale price and basic property details. One thing to keep in mind: public records often lag behind actual sales by several weeks, and they may not capture adjustments like seller credits. They're useful for verification, but not always current. ### Review recent sales in your neighborhood Sometimes the best research happens offline. Pay attention to "sold" signs on your street and note which homes recently changed hands. If you can, drive by to see the exterior condition. Neighbors often share sale prices informally, and that ground-level context can fill in gaps that data alone can't. ## What makes a strong comparable property Not every recently sold home qualifies as a good comp. A property that sold last month might still be a poor comparison if it differs too much from yours. Here's what separates a strong comp from a weak one: | **Strong comp** | **Weak comp** | | Sold within past 3–6 months | Sold over a year ago | | Within half-mile radius | Several miles away | | Same property type | Different property type | | Similar square footage (within 10–15%) | Significantly larger or smaller | | Comparable condition and updates | Major condition differences | ### Proximity to your home Location [drives value](https://www.opendoor.com/articles/factors-that-influence-home-value) more than almost anything else. The closer a comp is to your property, the more likely it shares the same neighborhood characteristics: school district, walkability, noise levels, and overall appeal. Aim for comps within the same subdivision or within a half-mile. In dense urban areas, even a few blocks can matter. ### Recent sale date Markets shift constantly. A home that sold 18 months ago might have traded under completely different conditions: different interest rates, different inventory, different buyer demand. Focus on sales from the past three to six months. In fast-moving markets, prioritize the most recent transactions. ### Similar square footage and lot size Size directly affects value. Comparing a 1,200-square-foot home to a 2,400-square-foot home produces unreliable results. Aim for comps within 10–15% of your home's square footage. Lot size matters too, especially in suburban and rural areas where outdoor space carries weight. ### Matching property type Single-family homes compare to single-family homes. Condos compare to condos. Townhouses compare to townhouses. Mixing property types introduces too many variables: HOA fees, shared walls, maintenance responsibilities. ### Comparable bedroom and bathroom count Bedroom and bathroom counts influence buyer demand. A four-bedroom home appeals to a different buyer pool than a two-bedroom, even if the square footage is similar. When possible, match bedroom and bathroom counts exactly. If you can't, stay within one of each. ### Similar age and construction style Homes built in the same era typically share similar construction quality, floor plans, and maintenance needs. A 1960s ranch and a 2020 new build might have the same square footage, but they appeal to different buyers and carry different expectations. ### Condition and upgrades at time of sale A recently [renovated home with a new kitchen](https://www.opendoor.com/articles/improvements-that-increase-home-value) will sell for more than a similar home that hasn't been updated in 30 years. When evaluating comps, try to assess condition at the time of sale. Listing photos, property descriptions, and even Google Street View can help you gauge whether a comp was move-in ready or a fixer-upper. ## Tips for finding accurate home comps in your area Even with good data, the quality of your analysis depends on how carefully you select and evaluate properties. ### 1. Focus on sold homes rather than active listings Active listings show asking prices. Sold prices show market value. Only sold comps give you reliable data. Pending sales can hint at current activity, but until a sale closes, you won't know the final price or whether concessions were involved. ### 2. Stay within a half-mile radius when possible Neighborhood factors like school quality, traffic, and proximity to amenities can vary over short distances. A home a mile away might be in a different school district or on a busier street. ### 3. Limit your search to the past three to six months Market conditions evolve, and older sales may not reflect current buyer behavior. If you can't find enough recent comps, you might expand the time frame, but acknowledge that older sales carry less weight. ### 4. Adjust for differences in features and condition No two homes are identical. When a comp has features your home lacks, or vice versa, you'll want to account for the difference. For example, if a comp has a pool and your home doesn't, that comp's sale price likely includes a premium you wouldn't receive. ### 5. Use price per square foot to compare properties Price per square foot — sale price divided by square footage — creates a useful equalizer when comparing homes of different sizes. If three comps sold for $180, $195, and $205 per square foot, you have a reasonable range to apply to your own home. ### 6. Consider current market conditions and seasonality Buyer demand fluctuates throughout the year. Spring and early summer typically bring more buyers and higher prices, with home prices [16% higher in June](https://www.homesteadfunding.com/blogs/seasonality-in-the-housing-market) compared to December through February, while winter months often see slower activity. ## Who uses property comps and how Different people use comps for different reasons. Knowing who relies on them and why can help you interpret the data more clearly. ### Home sellers setting a list price Sellers use comps to price competitively: high enough to maximize proceeds, low enough to attract serious buyers. [77% of agents](https://www.homelight.com/blog/home-selling-mistakes/) identified overpricing as the number-one mistake homeowners make when selling. The goal is finding a price the market will validate. ### Appraisers determining market value Appraisers are required to use comps when providing valuations for lenders. Their job is to deliver an objective opinion of value that protects the lender's investment. ### Homebuyers evaluating offers Buyers use comps to determine whether a listing is fairly priced and to support their offer amount. If comps suggest a home is overpriced, a buyer might offer less or move on. ### Real estate agents advising clients Agents run comparative market analyses to guide pricing and offer decisions. A good CMA includes not just raw data but interpretation: why certain comps matter more than others. ## How to calculate your home value using comps You can estimate your home's value using comps and some basic math. While a professional appraisal offers more precision, this approach gives you a reasonable starting point. ### 1. Gather three to five comparable sales Multiple comps provide a range and reduce the impact of any single outlier. If one home sold unusually high or low, having additional data points keeps your estimate grounded. ### 2. Identify differences between each property and yours For each comp, note how it differs from your home. Does it have an extra bathroom? A smaller lot? A newer roof? ### 3. Adjust prices based on feature differences If a comp has a feature your home lacks, subtract estimated value from that comp's sale price. If your home has something the comp doesn't, add value. ### 4. Determine a price range for your home After adjusting each comp, you'll have a set of adjusted values. The range between the lowest and highest gives you a realistic price window. For a data-backed starting point without the manual work, [get a cash offer from Opendoor](https://www.opendoor.com/address-entry). ## Common mistakes when analyzing real estate comparables Even experienced homeowners make errors when evaluating comps. Avoiding a few common pitfalls leads to more accurate conclusions. ### Relying on outdated or distant sales A comp from two years ago or two miles away might seem relevant, but it likely reflects different market conditions or neighborhood characteristics. ### Ignoring differences in property condition Two homes with identical specs can sell for vastly different prices if one is move-in ready and the other needs work. ### Using only one comparable A single comp can be an outlier. Multiple comps provide a more accurate picture and help you spot anomalies. ### Confusing list price with actual sale price List prices are asking prices, not market values. A home listed at $400,000 might sell for $380,000 or $420,000. Always use final sale prices. ## Move forward with confidence in your home's value Comps give you a clear view of what your home is worth based on real market data. Whether you're preparing to sell, curious about your equity, or evaluating a purchase, comparable sales provide the foundation for informed decisions. Opendoor combines comparable sales data with local market expertise to deliver transparent, data-backed offers. [Get a free cash offer](https://www.opendoor.com/address-entry) and take the first step toward your next chapter. [Get your offer](#) ## FAQs about real estate comps ### How accurate are online home valuation tools compared to professional appraisals? Online tools provide useful estimates but may not account for unique features, recent upgrades, or condition factors that a professional appraiser would evaluate in person. ### What should I do if there are no comparable home sales in my neighborhood? Consider expanding your search radius, extending the time frame, or consulting a local real estate professional who understands your area. ### Can I challenge an appraisal if I disagree with the comps an appraiser used? Yes. Homeowners can request a reconsideration of value by providing additional relevant comps the appraiser may have missed. ### Do foreclosures and short sales count as valid comparable properties? Distressed sales typically sell below market value and may not reflect what a typical buyer would pay under normal conditions. ### How do comps work differently for condos compared to single-family homes? Condo comps require matching unit type, floor level, and building amenities. Ideally, comparisons come from within the same complex. | **Supported Locations** | | | **Cities / Areas** | **States** | | [Columbia](/sell/columbia_sc), [Columbus](/sell/columbus_oh), [Corpus Christi](/sell/corpus_christi_tx), [Detroit](/sell/detroit_mi), [East Texas](/sell/east_texas), [El Paso](/sell/el_paso), [Florida Panhandle](/sell/florida_panhandle), [Greensboro](/sell/greensboro_nc), [Greenville](/sell/greenville_sc), [Indianapolis](/sell/indianapolis_in), [Kansas City](/sell/kansas_city), [Killeen](/sell/killeen_tx), [Knoxville](/sell/knoxville_tn), [Las Vegas](/sell/las_vegas), [Little Rock](/sell/little_rock_ar), [Louisville](/sell/louisville_in_ky), [Memphis](/sell/memphis_tn), [Miami](/sell/miami_fl), [Milwaukee-Waukesha](/sell/milwaukee_waukesha_wi), [Minneapolis](/sell/minneapolis), [New Orleans](/sell/new_orleans_la), [New York & New Jersey](/sell/new_york_new_jersey), [Northern Colorado](/sell/northern_colorado), [Oklahoma City](/sell/oklahoma_city_ok), [Omaha](/sell/omaha_ne), [Philadelphia](/sell/philadelphia_pa), [Pittsburgh](/sell/pittsburgh_pa), [Portland](/sell/portland), [Prescott](/sell/prescott_az), [Reno](/sell/reno_nv), [Richmond](/sell/richmond_va), [Salt Lake City](/sell/salt_lake_city), [San Antonio](/sell/san_antonio), [Seattle](/sell/seattle_wa), [San Francisco Bay Area](/sell/sf_bay_area), [South Texas](/sell/south_texas), [Southwest Florida](/sell/southwest_fl), [St Louis](/sell/st_louis), [Tucson](/sell/tucson), [Tulsa](/sell/tulsa_ok), [Virginia Beach](/sell/virginia_beach_va), [West Texas](/sell/west_texas), [Western New York](/sell/western_ny) | [Alabama](/sell/alabama_other), [Arkansas](/sell/arkansas_other), [California](/sell/california_other), [Colorado](/sell/colorado_other), [Connecticut](/sell/connecticut_other), [Delaware](/sell/delaware_other), [Georgia](/sell/georgia_other), [Idaho](/sell/idaho_other), [Illinois](/sell/illinois_other), [Indiana](/sell/indiana_other), [Iowa](/sell/iowa_other), [Kansas](/sell/kansas_other), [Kentucky](/sell/kentucky_other), [Louisiana](/sell/louisiana_other), [Maine](/sell/maine_other), [Maryland](/sell/maryland_other), [Massachusetts](/sell/massachusetts_other), [Michigan](/sell/michigan_other), [Minnesota](/sell/minnesota_other), [Mississippi](/sell/mississippi_other), [Missouri](/sell/missouri_other), [Montana](/sell/montana_other), [Nebraska](/sell/nebraska_other), [Nevada](/sell/nevada_other), [New Hampshire](/sell/new_hampshire_other), [New Mexico](/sell/new_mexico_other), [New York](/sell/new_york_other), [North Carolina](/sell/north_carolina_other), [North Dakota](/sell/north_dakota_other), [Ohio](/sell/ohio_other), [Oklahoma](/sell/oklahoma_other), [Oregon](/sell/oregon_other), [Pennsylvania](/sell/pennsylvania_other), [South Carolina](/sell/south_carolina_other), [South Dakota](/sell/south_dakota_other), [Tennessee](/sell/tennessee_other), [Utah](/sell/utah_other), [Vermont](/sell/vermont_other), [Virginia](/sell/virginia_other), [Washington](/sell/washington_other), [West Virginia](/sell/west_virginia_other), [Wisconsin](/sell/wisconsin_other), [Wyoming](/sell/wyoming_other) | --- *Originally published at [https://www.opendoor.com/articles/home-sellers-why-you-should-care-about-comps](https://www.opendoor.com/articles/home-sellers-why-you-should-care-about-comps)*