Houtlaan is een straat te Leiden in de gemeente Leiden en is gelegen in de Nederlandse provincie Zuid-Holland.
| Postcode | Huisnummers |
|---|---|
| 2334 CL | 4, 6, 8, 10A, 10B, 10C, 10, 12A, 12B, 12C, 12D, 12E, 12F, 12G, 12H, 12K, 12L, 12M, 12N, 12P, 12R, 12S, 14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H, 14K, 14L, 14M, 14N, 14P, 14R, 16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H, 16K, 16L, 16M, 40, 42, 44, 46, 48, 50, 52, 54, 60, 62, 80, 100, 102, 104; |
| 2334 CJ | 1, 3, 5, 7A, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31; |
| 2334 CK | 33, 35, 37, 39, 41, 43, 45, 47, 49, 53, 55; |