Charles Washington House | |
 Front of the house | |
   | |
| Location | Blakeley Plaza, Charles Town, West Virginia |
|---|---|
| Coordinates | 39°16′56″N 77°51′35″W / 39.28222°N 77.85972°W |
| Area | 0.5 acres (0.20 ha) |
| Built | 1780 |
| Architectural style | Early Republic, Classical Revival |
| NRHP reference No. | 73001912[1] |
| Added to NRHP | July 2, 1973 |
Happy Retreat (also known as Charles Washington House and Mordington) is a historic property in Charles Town, West Virginia, which was originally owned and developed by Charles Washington, the youngest brother of George Washington and the founder of Charles Town.