Constantine House has become the “most expensive pigeon coop in the country” as birds are able to fly through the empty window apertures.
The Nene Quay building, which used to known as The Belfast, has stood empty for five years after being badly damaged by fire in 2010.
Fenland District Council’s legal team is now looking over the case with a view to prosecute after the owners did not meet the deadline of Monday last week to complete the necessary works.
A council spokesman said: “The owners of Constantine House in Wisbech have not complied with the Section 215 Notice requiring them to complete the necessary works by Monday, October 26, 2015, and they did not exercise their right to appeal the notice.
“An enforcement officer inspected the site on Monday October 26. He reported that no further work had been done there since August. Consequently, the matter is now with our legal team to review, with a view to prosecution.”
Works to complete at the site include finishing off the roofing, repairing shopfronts, doors and windows, along with decorating the front.
People in the town have been frustrated by the time it has taken for action to be taken on this site.
Postmaster Ray Wicks, who runs Etcetera, said: “It is a blot on the landscape and has been for some time. It is a lot better now you can’t see the plants growing out of the top of it.
“It’s time the council draws things to a head. We have suffered with this for too long.”
Waterlees councillors Virginia and Michael Bucknor have been calling for Constantine House to be tidied up since November 2010 and believe work actually stopped at Easter.
Cllr Mrs Bucknor said: “It is an eyesore and is holding the town back. Someone has told me that it is ‘the most expensive pigeon coop in the country’ as it’s open to the elements.
“Constantine House is the first thing you see when you approach the town centre.
“I am frustrated by the lack of political will not to address this years ago and they are dragging their feet.”