CoStar Group

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1331 L St NW
Washington, DC 20005

CoStar Group, located in Washington, DC, is a leading real estate information and analytics provider known for its comprehensive database that serves clients across the commercial real estate industry. They deliver a range of services, including market research, property data, and advertising solutions, to help businesses make informed decisions. Their expert team leverages advanced technology to support the real estate community in navigating market trends and enhancing overall strategies.

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1.0

(88)

Photo of Richard S.
Richard S.
9/1/2016

Update 9/2/2016! - CoStar figured out a way to get us up and running this morning. It is a shame that we have to resort to social media and a massive email/phone campaign to get things done as...

John S.
12/22/2025

Costar loopnet are ripoff artists! Keeps withdrawing money from your account even after canceling listing. Says they have a right to autorenew for a year without permission and keep dinging your...

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Life Is Good ..
4/15/2025

I provided CoStar with proof that one of the companies they do business with (Wisconsin Management Company) has admitted to fraudulent practices, and deliberate online misrepresentation, and...

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Vinitha P.
11/8/2024

Obselete inaccuract database. They deceptively lock people in contracts and refuse to cancel subscription. Worst customer support. Poor value for money and highly recommend people to stay away...

Amy Q.
7/15/2025

If I could give zero stars, I would. I signed up for a 3-month commitment, and they charged me for 6 months. When I asked for a refund for those 3 additional months, they responded with a ChatGPT...

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