A wnaiff y Gweinidog amlinellu'r costau sy'n gysylltiedig â'r gwaith parhaus o reoli a rhedeg swyddfeydd Llywodraeth Cymru yn Llundain?
Wedi'i ateb gan Gweinidog y Gymraeg a Chysylltiadau Rhyngwladol | Wedi'i ateb ar 23/07/2019
In 2017-18, the total annual running costs for the London Office was £479,844 as detailed in the latest published State of the Estate report.
https://gov.wales/sites/default/files/publications/2019-01/state-of-the-estate-2017-2018.pdf
The 2018-19 figures will be included in the next report, which will be published in November.