Post Office – Llanelli, Penygroes – Opening Hours & Branch Details Post Office is conveniently found at 16 Norton Road, approximately 9.61 miles north-east from the centre of Llanelli (close to Pen-Y-Groes Meddygfa / Surgery). This branch is fittingly situated to serve patrons from the districts of Blaenau, Cross Hands, Caerbryn, Morfa, Gorslas, Penygroes, Saron and Capel Hendre. Today (Friday), its hours of opening are 9:00 am to 5:30 pm. On this page, you can find information about Post Office Llanelli, Penygroes, including the open hours, street address and customer feedback.