The 1803 House | |
 The 1803 House in Emmaus, Pennsylvania, October 2012 | |
  Location of The 1803 House in Pennsylvania  The 1803 House (the United States) | |
| Location | 55 S. Keystone Ave., Emmaus, Pennsylvania, U.S. |
|---|---|
| Coordinates | 40°32′23″N 75°29′11″W / 40.53972°N 75.48639°W |
| Area | Less than one acre |
| Built | 1803 |
| Architect | Jacob Ehrenhardt, Jr. |
| Architectural style | Federal |
| NRHP reference No. | 03001123[1] |
| Added to NRHP | November 7, 2003 |
The 1803 House, also known as the Jacob Ehrenhardt Jr. House, is a historic home located in Emmaus, Pennsylvania. It was built in 1803 for Jacob Ehrenhardt Jr., a son of one of the town's founders.