EXHIBIT 21.1 SUBSIDIARIES OF SUMMIT PROPERTIES PARTNERSHIP, L.P. 1. Summit Management Company, a Maryland corporation 2. Stony Point/Summit Limited Partnership, a Virginia limited partnership 3. Summit/Belmont Limited Partnership, a Virginia limited partnership 4. Hampton/McGuire Limited Partnership, a Florida limited partnership 5. Henderson/McGuire Partners (Limited Partnership), a Delaware limited partnership 6. McGregor/McGuire Limited Partnership, a Florida limited partnership 7. Summit American Associates, a Florida limited partnership 8. Portofino Place, Ltd., a Florida limited partnership 9. Sand Lake Joint Venture, a Florida general partnership 10. Foxcroft East Associates, a North Carolina limited partnership 11. Summit Stonefield, LLC, a Pensylvania limited liability company 12. Summit Southwest, L.P., a Delware limited partnership