Contact Us

Mailing Address:
Tregaron Conservancy
P. O. Box 11351
Washington, DC 20008


Telephone: 202-810-5009

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Please note:  We do NOT rent our land or allow the property’s use for any private parties or events.  There are no facilities or buildings on the Tregaron Conservancy’s historic landscape.  We are committed to keeping our land open to the public.  If you are interested in renting the Mansion or other buildings at the Washington International School’s Tregaron campus, please visit WIS facility rentals »

Tregaron's restored lily pond.

Tregaron’s restored lily pond.

If you visit Tregaron with a dog, you must keep your pet on a leash at all times to protect people (young and old), dogs, WIS students and faculty, and the historic landscape.  Please do not allow your dog to swim in the lily pond; terrible damage to the aquatic plants has already occurred due to dogs treating the pond as a swimming hole.  We thank you for respecting and caring for this historic landmark — private property that is open to the public for free on a daily basis.