​​​​​​​​​​​​Supplementary Planning Guidance (SPG) is produced to provide further detail on certain policies and proposals contained within Cardiff’s Development Plan.
​ ​​​​Cynhyrchir Canllawiau Cynllunio Ategol i roi manylion pellach ar bolisïau a chynigion penodol sydd yng Nghynllun Datblygu Caerdydd.