Canolfan Hamdden Dyffryn Nantlle, Plas Silyn Leisure Centre County Road, Penygroes, Caernarfon, Gwynedd, LL54 6HJ
Darparu mannau parcio ychwanegol i hwyluso'r trefniant parcio y ganolfan hamdden a'r ysgol gyfagos, gyda draeniad dŵr wyneb cynaliadwy cysylltiedig, a ffensio. Providing additional car parking spaces to facilitate the leisure centre and the adjacent school, with associated sustainable surface water drainage, and fencing