The sites you should use to find apartment buildings for sale
Apartment buildings have always been one of the most consistent income-producing asset classes in commercial real estate. Even in an uncertain market, multifamily continues to outperform, because no matter how other property types perform, people always need somewhere to live.
But not all apartment buildings are created equal, and not all of them are listed publicly. Finding the right property, in the right area, at the right price, can be the difference between a mildly profitable investment and a portfolio-defining one. Here, we'll look at the sites you should use to find apartment buildings for sale, starting with off-market property intelligence platforms like Reonomy, then moving through the major on-market listings sites.
Originally published August 25, 2023. Refreshed in May 2026.
It’s no secret that apartment buildings are and have always been a hot commodity for those buying commercial real estate. Even in this uncertain market, apartment buildings and other multifamily real estate continue to outperform other asset types. Apartment buildings offer more consistent income compared to many other asset classes. No matter how other property types perform, people always need somewhere to live. Therefore, apartments continue to be a solid investment year over year.
However, not all apartment buildings are alike. Finding the right property for your portfolio, in the right area, for the right price can make all the difference between a mildly profitable investment and a life-changing investment.
Here, we’ll look at the sites you should use to find apartment buildings for sale. We examine property intelligence platforms like Reonomy as well as other commercial listings platforms across the country.
Finding off-market sellers with property intelligence
Before you search the multitude of listings platforms we mention below, consider searching for off-market properties first. Off-market properties (assets that aren't currently for sale or listed on the MLS) can be an excellent way to acquire property at a reasonable price, without facing competition from other buyers. You can often avoid costly broker fees, too.
There’s much more depth with an off-market search. You can essentially search any apartment building in the United States, and thanks to the property intelligence technology, quickly analyze whether that property is likely to sell.
Find off-market apartment buildings with Reonomy
With Reonomy property intelligence, you can narrow down the nation’s entire asset stock with just a few clicks. Using Reonomy's filtering tools, you can identify apartment buildings that meet your investment criteria. Search multifamily properties by size, age, type, and surface only those with the sales or debt history you're looking for.
Then, once you've identified the properties you want to pursue, use Reonomy's verified contact information to reach out to the owner directly. And when ownership rolls up through LLCs and shell companies (which it almost always does for multifamily), Reonomy's AI automatically untangles the entity structure to surface the actual decision-maker behind the property, so you spend your time on real leads, not chasing down dead ends.
Get started with Reonomy
Our Reonomy web app is powered by AI technology to help you access property owner information, property records, company data, and successfully close on commercial real estate deals.
Finding apartment buildings for sale with on-market listings sites
If you want to pursue apartment buildings that are already for sale, you have plenty of on-market options. Below are the platforms most worth your time. Note that most commercial real estate listings sites don't have a dedicated "apartment building" category. You'll search the multifamily property type, then filter by unit count, building size, and price to find the apartment buildings that fit.
One thing to be aware of: LoopNet, Showcase, CityFeet, and Ten-X are all owned by CoStar Group, which means a lot of listings appear on more than one of these sites.
The best listings platforms for finding apartment buildings for sale:
LoopNet
Crexi
Showcase
CityFeet
LoopNet
LoopNet is the gold standard for most online users searching for commercial property for sale. It's the most extensive on-market listings platform on the web, with hundreds of thousands of total listings available at any given time. LoopNet also surfaces Ten-X auction listings directly inside the platform, useful if you're open to bidding on distressed or institutional multifamily assets.
To find apartment buildings for sale on the platform, search under the multifamily property type. By adding other filters like price, building size, and other specifics, you can narrow down your multifamily search to the apartment building of your preference.
CREXi
CREXi features listings for more than a dozen CRE asset types, including multifamily properties. While searching for multifamily properties generates a great variety of results, the perk of using CREXi is the number of filters available. Besides property type, CREXi also lets you add filters for:
Location
Property details (price, square footage, acreage, etc.)
Unit measurements (units, beds, etc)
Custom keywords
Listing timeline
Lease type
Tenancy (vacant, single, multi)
Tenant credit
Listing type, listing status, and more
You can get very specific with your apartment building search, whether you're looking to buy or lease.
Showcase
Showcase is CoStar's free-to-browse listings site (essentially LoopNet's free-to-browse sibling) and offers on-market property listings for office, industrial, retail, multifamily, and land for sale across the US and the UK.
To find apartment buildings for sale on Showcase, start by searching for multifamily properties and choose whether you’d like to buy or lease. You can then break down your search further by adding other specifications like building square footage, rent per square foot, and more.
Apartmentbuildings.com
Apartmentbuildings.com is a website focused specifically on listing apartment buildings and land for sale. Both buyers and sellers use the platform, and it includes listings in all of the largest US markets, including New York, California, Florida, Texas, and Arizona.
You can start your search by choosing either "multifamily" or "land." Once you've begun your search, Apartmentbuildings.com lets you add location filters as well as other criteria including price range, building size, lot size, number of units, and custom keywords.
CityFeet
CityFeet is a New York-focused commercial real estate listings platform owned by LoopNet. While they do have nationwide listings, the platform primarily focuses on New York City. On the site, you can search for properties for lease or sale. To find apartment buildings for sale, search for multifamily properties, then add filters for price, building size, and tenancy. You can search using specific keywords as well.
Realtor.com
Realtor.com is a real estate listings platform for homeowners, sellers, renters, and those who may be refinancing their mortgage. Aside from property listings, the site includes new mortgage and refinance rates through sites like Quicken Loans, and offers the ability to search for home realtors and real estate agents throughout the country.
While Realtor.com does have nationwide listings, they too have a heavy focus on New York City, offering separate filters for NYC-only searches. While Realtor.com is primarily known for its residential real estate searches, the website also features listings for mobile homes, multifamily homes, farm ranches, and land for sale. To find apartment buildings for sale in your desired market, simply add the multifamily property type filter and proceed from there.
Getting the full-scope in your search
While most of these platforms do not let you search directly for apartment buildings for sale, they all include the extra filters and add-ons you need to find the right investment for your portfolio. However, before you start your search, consider using Reonomy’s property intelligence technology to broaden your understanding of the desired market. Our online tools can help you identify and secure your next winning investment.
Frequently asked questions
What's the best site to find apartment buildings for sale?
For on-market listings, LoopNet has the broadest inventory and Crexi offers the strongest filtering for multifamily underwriting. For off-market apartment buildings (where many experienced investors source their best deals), Reonomy is a leading property intelligence platform with verified owner contact information.
How do investors find apartment buildings for sale before they're listed?
Most off-market deals are found using property intelligence platforms that aggregate property records, transaction history, debt data, and verified owner contact information across millions of commercial properties. Investors filter the database by location, building specs, and financial signals (like loan maturity or long ownership tenure) to identify owners likely to consider a sale, then reach out directly.
How do I find the owner of an apartment building?
You can find apartment building ownership through county assessor records, but for multifamily properties the ownership trail usually ends at an LLC or shell company with no contact information. Property intelligence platforms like Reonomy automatically roll up complex entity structures to identify the real decision-maker behind the LLC and provide verified phone and email contact info.
Are off-market apartment buildings cheaper than listed ones?
Often yes. Off-market sellers aren't running a competitive bidding process, so there's no auction premium baked into the price. Buyers also avoid broker commissions and have more room to negotiate terms. Off-market deals require more legwork up front, but the unit economics typically favor the buyer.
Can I buy an apartment building without a broker?
Yes. Off-market deals sourced through property intelligence and direct owner outreach are typically negotiated without a buy-side broker. You'll likely still want legal counsel, a title company, and an inspector, but the buy-side broker commission is removed from the transaction.
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