Bat House at Tyn y Maes

All roosts are protected by law.

Except if you go by the right procedures, when you can do what you like. As long as you do it at the right time of year and employ people with licenses to handle bats.

This bat house was built only because Horizon demolished 14 houses, many which bats used - and one that had a maternity roost in it.

Roofs Taken Off to Limit Bats Future Occupation

Work to remove roofs from 14 buildings in advance of demolition has been started and almost completed over the past week. The actual roof removal had to wait until the two new owl rost and bat homes were completed. As soon as they had been signed off the contractors moved in to erect scaffolding and take off the slates and roof insulation, thereby making certain that they can never be repaired and renovated or lived in again - also so that the bats and owls will not want to take up residence again either.
In attendance were the Cambrian Ecological Partnership to check that no bats were actually in residence at the buildings being taken apart. 
Once again in their Press Release New Horizon describe the buildings they are demolishing as unsafe and uninhabitable. That would be sad news to the people who were living in them until they were moved out by New Horizon. Of course empty buildings attract people to break in and steal the electric cables and pipework out of them and with no security most buildings were probably brought into a dangerous condition under the care and ownership of New Horizon, so that they can now be demolished for a 'good' reason

Demolished Homes - New Bat Roosts at Wylfa, Anglesey

Alongside the dismantling of two former homes a new, state of the art bat roost is constructed on the edge of the Wylfa Nature Trail close to the open coastal grazing of Wylfa Nature Reserve.
The bat roosts would be a planning requirement because so many houses that used to provide roosts for bats, and barn owls are being demolished as part of the development of land around the old power station by New Horizon.
Advised / designed by consultant Richard Crompton and Cambrian Ecological Partnership
Planning permission has been applied for and approved for these bat roosts and the barn owl nesting sites, but an application for the power station has not been submitted. These alternative sites are to show good faith but are experimental. See objections from Hinkley Point where the same thing has happened.

PV genration panels on roof of new bat roost
at Wylfa Nature Trail, Anglesey.

Gable of new bat roost
at Wylfa nuclear power station.

Different sized entry holes for different types of bats.

Additional bat boxes in trees around the new Wylfa bat roost.

The new bat roost at Wylfa,
between two former homes currently being dismantled
in preparation for the new Wylfa B power station.

Bat House at Wylfa

New 'house' being built as a bat roost by New Horizon. This is required because of the number of properties they are demolishing in advance of putting in their planning application for their new power station.  To prepare the site they had to cut down surrounding trees and bulldoze the former gardens of the two houses now boarded up.

A bat roost being erected by New Horizon at Wylfa Power Station
to provide roosts for the bats displaced from the properties they have demolished.