TA2: The “three tests” and reasoned statements


What are the “three tests”

As derogations from statutory legislation, European protected species licence need to meet strict tests before they can be issued.

In determining whether or not to grant a licence, Natural England is legally bound to use the so-called “three tests”. These three tests are :

  • Test #1: show that the purpose of the licence has a valid basis;
  • Test #2: show that there are no reasonable options with lower impacts; and that
  • Test #3: show that granting the licence won’t cause long-term impacts on the species concerned.

Read moreTA2: The “three tests” and reasoned statements

TA1: Applying for a bat mitigation licence


Bats: how to apply for a mitigation licence

When you carry out work that may affect bats or their roosts, you may need a mitigation licence.

This is also sometimes called a “derogation” licence.

Clients often want to know what this practically involves. This article, based on present guidance, is here to assist you in knowing :

We would be happy to offer specific advice on your project on whether you need a bat licences and what an application involves.

Read moreTA1: Applying for a bat mitigation licence

Dimensions for fitted bat boxes

Trying to fit a bat box in a wall cavity rather than externally mounted ? Here is a quick reference for some approximate dimensions, weights & suppliers links for internally fitted boxes. Please check links to suppliers’ sites for further technical details .

If you need assistance with bats and bat mitigation, please don’t hestitate to contact us.

Fitted bat boxes

Dimensions

Weight ( All approx.)

Materials

Notes

Suppliers website

Habibat Unfaced Bat Box

Width: 215mm x Height 440mm x Depth 102mm

Weight: 7 kg

Material: Concrete plus plain facing

Plinth Colour Options: Red, Blue or Buff; plain for rendering over; rendering not included in above dimensions

http://www.habibat.co.uk/integrated-bat-boxes







Ibstock Enclosed Bat Box ‘C’ Small Box

Width: 215mm x Height: 215mm x Depth: 105mm

Weight: 6.7kg

Available faced in all brick types or with "bat logo" facing


https://ibstockbrick.co.uk/kevington/eco-products/







Ibstock Enclosed Bat Box ‘C’ Small Box Large Box

Width: 215mm x Height: 290mm x Depth: 105mm

Weight: 9.2kg

Available faced in all brick types or with "bat logo" facing


https://ibstockbrick.co.uk/kevington/eco-products/







Integrated Eco Bat Box

Width 215mm x Height 440mm x Depth 111mm

Weight: 3kg

Materials: Recycled LDPE plastic outer with internal FSC OSB roost chamber

Finish: Black carcass with red, green or black front panels

https://www.nhbs.com/integrated-eco-bat-box?bkfno=232522







Schwelger 1FE Bat Access Panel

Width 300mm x Height 300mm x Depth 80 mm.

Weight: 5.1 kg

Material: Schwelger wood-concrete.

Can be attached to underlying structure using screws and plugs and two eyes; or use purpose built backing unit. No backing within dimensions.

https://www.schwegler-natur.de/portfolio_1395072079/fledermaus-einlaufblende-1fe/?lang=en







Schwegler 1FR Bat Tube

Width: 200mm x Height: 475mm x Depth: 125mm

Weight: 9.8kg

Material: Woodcrete with integrated wooden panel

Entrance dimensions: 15 x 9 x 2cm

https://www.schwegler-natur.de/portfolio_1395072079/fledermaus-fassadenroehre-1fr/?lang=en







Roof access points






Bat Access Slate

Natural Slate 500mm x 250mm


Spanish Slate attached to an injection moulded underbase unit

Non slip surface; access by the bats via an exterior weathering cowl

https://www.aboutroofing.com/bat-access-slate-natural-slate-500mm-x-250mm.html