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Visiting · Washington, DC

Visiting CoStar Group: The Business Traveler’s Guide

By Rachel Julian, Editor-in-Chief · · 3 min read

A complete business-travel guide to CoStar Group’s Washington, DC headquarters — where to stay, how to get there, and how to make the meeting count.

Direct answer: Visiting CoStar Group (a commercial real-estate information and analytics company) in Washington, DC: the HQ is at 1331 L St NW, Washington, DC 20005. Fly into Reagan (DCA) ~15 min · BWI ~45 min · Dulles (IAD) ~40 min · Metro: yes; stay at The Willard InterContinental Washington DC or another verified option nearby; on the ground, the metro — dca is on the blue/yellow line and the silver line reaches tysons and reston. The full stay and getting-there guides are below.
Company
CoStar Group — a commercial real-estate information and analytics company
Headquarters
1331 L St NW, Washington, DC 20005
Submarket
downtown Washington, DC, on L Street
Airport
Reagan (DCA) ~15 min · BWI ~45 min · Dulles (IAD) ~40 min · Metro: yes
Top stay pick
The Willard InterContinental Washington DC

Everything a business traveler needs for a trip to CoStar Group’s Washington, DC headquarters — the hotel, the airport, and the ground game — in one place, drawn from our verified where-to-stay and getting-there work.

Where to stay near CoStar Group

The go-to pick is The Willard InterContinental Washington DC — A historic landmark on Pennsylvania Avenue by the White House — the room for hosting a client or an executive visit downtown.. The office sits in downtown Washington, DC, on L Street, so book to that submarket rather than defaulting to “downtown.” See the full verified shortlist for CoStar Group →

Getting there

Reagan (DCA) ~15 min · BWI ~45 min · Dulles (IAD) ~40 min · Metro: yes. On the ground it is the metro — dca is on the blue/yellow line and the silver line reaches tysons and reston. The full airport-to-office guide for CoStar Group →

Making the meeting count

The logistics are only half of it — how you show up in the room is the rest. See the Meet playbook for onsite prep, and score the trip itself with the Trip ROI Scorecard before you book.

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Sources: CoStar Group’s HQ address is its published corporate address; hotel and airport guidance is reused from our verified where-to-stay and getting-there guides for CoStar Group. The Sales Traveler’s own assessment, not paid placements.
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