The research has shown that stalled sites primarily relate to residential development, with the construction of approximately 7,600 homes currently being prevented across Wales.
Mae’r gwaith ymchwil wedi dangos bod safleoedd lle y bu oedi yn bennaf gysylltiedig â datblygiadau preswyl, gydag oddeutu 7.600 o gartrefi yn cael eu hatal ar hyn o bryd ledled Cymru.