The Paxton House ticket office is open 10:00-17:00 on non-matchdays, and from four hours before kick-off on matchday. You can find it located directly next to the stadium in the north-west corner. It is clearly signposted, and on matchday, Fanbassadors and stewards will be happy to direct you there.
It typically remains open until half-time.
For information about how to get to the stadium, please see Getting Here.
For additional maps and information, download the Fan Guide which gives you all you need to know.