Harmony Hall
Hours
See this week's hours below.
- Entrance fee
- The Park Service lists no entrance fee for this site.
- Phone
- 771-208-1555
- Address
- 10702 Livingston Road, Fort Washington, MD 20744
About Harmony Hall
The 18th century Harmony Hall mansion is located on a 62.5-acre open pasture land estate along the Potomac River. This estate was purchased by the National Park Service in 1966, to preserve southern Maryland cultural heritage. Surrounded by a rich landscape, it offers visitors many chances to connect with Colonial History. The park also home to the remains of the Want Water House and canal.
Hours
Harmony Hall Grounds
Park grounds are open daily from 6:00 a.m. to 10:00 p.m. There is no vehicle access or on-site parking. Historic structures are closed, and no facilities or amenities are available. Please do not attempt to enter any structures.
| Monday | 6:00 AM to 10:00 PM |
|---|---|
| Tuesday | 6:00 AM to 10:00 PM |
| Wednesday | 6:00 AM to 10:00 PM |
| Thursday | 6:00 AM to 10:00 PM |
| Friday | 6:00 AM to 10:00 PM |
| Saturday | 6:00 AM to 10:00 PM |
| Sunday | 6:00 AM to 10:00 PM |
Getting there
From the Capital Beltway (I495/95) take Exit 3 to MD 210 South/Indian Head Highway, travel approximately 4 miles to Fort Washington Road, turn right. At the traffic light, Livingston Road, turn right. The Harmony Hall Regional Center will be on your left. That is where you will need to park. After parking, when facing Livingston Road, go to your left and the park entrance is the next driveway.
Weather
Summers are generally hot and humid, with daytime highs frequently above 90 degrees Fahrenheit and scattered afternoon thunderstorms. Winters are generally cold, with nighttime lows frequently near freezing and occasional snowfall. Weather during spring and fall is generally moderate, but can change quickly..
Things to do
Birdwatching, Wildlife Watching.
Source: National Park Service data feed, checked September 24, 2026. Hours shown are the Park Service's posted standard hours plus any date changes it lists. Official page for Harmony Hall ↗