@ Pawncob, Thank you for your help. As stated in my first post
"We got an agent and let the flat, and during the whole time to present day the flat has been with several Agents, sometimes with a tenant in, sometimes empty,"
During the "Empty" the flat was still with whichever agent it was at the time and available for letting, Except for a period of six months when the Council workers managed to break a pipe in the flat above ours while fitting a new Kitchen and we had water pouring through the ceiling for hours. Big Insurance job and the flat was unavailable for let during the repairs and dry out. Agents changed several times during the 16 years for various reasons but mostly incompetence. Has been with one very good agent for the last six years.
No, we never moved back in and as stated in the first post we bought a house down south. Decided to keep the flat as a retirement fund.
@ Someone (Very good
Yes total periods of the flat being occupied by tenants is well over 2.5 years, The most recent and last tenant was in for three yaears. Thank you for your kind help.
Wedgie