the 1970s Llangrannog had a large barn, swimming pool, hospital, shop and a new gymnasium. By the beginning of the 1980s, grants from the Welsh Office guaranteed that the centre would be able to extend and build halls, offices, stockrooms, a bike shed and a sleeping block for an extra 80 people. The centre developed effective but cheap activities such as quad bikes, BMX bike courses, an adventure course and rollerblading. The period between the end of the 80s and the beginning of the 90s was a crucial period in the history of the Urdd, and modern activities attracted visitors.A ski slope was built, as well as a swimming pool and a new horse riding track. By the mid 1990s Llangrannog was one of the main residential centres in Wales with resources and activities of the highest possible standard. ‘Hafod’, another sleeping block, and the a canteen were also built.
During the 1970s a residential centre was opened at Blaencwm in the Croesor Valley, and another at Pentre Ifan in Pembrokeshire. The buildings were refurbished to suit young people who wanted to spend their holidays in the countryside.