If possible, you should include written or photographic evidence to support your request and tell us what sources you have used to find out about the building;
Os yw’n bosibl, dylech gynnwys tystiolaeth ysgrifenedig neu ffotograffig i ategu eich cais a rhoi gwybod i ni pa ffynonellau rydych wedi’u defnyddio i ddysgu mwy am yr adeilad