Natterer's maternity roost at Peckforton castle

Case Study Image
1. Location

Geographical region: 
North West England
Town: 
Peckforton
Name of council or planning authority : 
Cheshire East
Name of consultant: 
Stan Irwin (Tyrer Partnership)
Name of architect: 
John Edwards
2. Type and description of building

Type and use of building (domestic house, commercial, industrial, etc.): 
Castle Hotel
Approximate age (in years) or period of the building: 
160 years
Materials of the building (stone, brick, timber, etc.): 
Stone
Predominant landscape type around building (e.g. garden, urban, woodland, open farm fields): 
Woodland
3. Details of proposed work and associated impacts

Type of impact to bats or roost: 
Roost modification
Date Timing of building/impact works (e.g. late spring, early summer) : 
Early spring
Description of building works or impact: 
Conversion of room into guest accommodation
4. Description of roost (before mitigation)

Bat species found on site: 
Natterer's bat - (M. nattereri)
Age (estimate of how long the roost has been in use): 
5 years +
Size (estimate of number of individuals using the roost): 
81
Use Type of roosts (e.g. hibernation, spring gathering, maternity, nursery, swarming): 
maternity
Location in building: 
Internal room within Castle hotel
Aspect (direction facing): 
South west
Description of immediate emergence environment in relation to the roost: 
Woodland
Roost substrate (e.g. brick, stone, wood, roofing felt): 
Stone
Height of roost above ground: 
3 metres from internal floor level
Roof covering: 
Stone
Lighting levels inside roost (lux reading) - Day: 
Not taken
5. Description of access (before mitigation)

Size of access: 
Window opening of 300mm x 500mm
Location in building: 
External wall
Height of access points above ground: 
10 metres
Aspect (direction facing): 
South west
6. Description of mitigation

Type of mitigation and compensation: 
Retaining existing roosts in refurbished buildings
Objective of mitigation: 
To maintain a Natterer's maternity roost but facilitate the room for guest accommodation
Method to achieve objective: 
Creation of void above the guest room and adapt the exit/entry route
How is success of mitigation to be measured: 
Automatic bat detector, manual and CCTV monitoring already undertaken
Drawings or plans of the project: 
7. Monitoring Data

Average daily temperature: 
18
When this temperature data was measured: 
2013
Evidence of bat use post mitigation: 
Fresh droppingss & bat presence 57 bats in June & 42 in August
How long did it take for bats/signs of bats to appear?: 
1 month
8. Measures of success
Based on the objective of the mitigation do you deem the mitigation to have been successful?: 
Yes
What alterations could be made to make the mitigation more successful?: 
None but measures are to be taken to ensure that the void in which the roost exists does not suffer from a significant temperature rise when the room is in occupation
Are there lessons from this project that you would like to highlight?: 
Cooperation with owners, understanding their requirements & concerns and full gathering of data associated with the roost before applying for a licence
9. Photos (before and after)

Before – inside of roost: 
Before, Inside of roost  - Roost 19/08/2013 - 1:33am
After – inside showing mitigation: 
Before, Indise of roost - Roost 19/08/2013 - 1:33am

Have Your SayQuestions or suggestions?

Such ancient and historical

Such ancient and historical monuments are really surprising to watch. Thanks for helping us know more about the Natterer's maternity roost at Peckforton castle and sharing the pictures. I would like to know more about this best cable deals castle and hope you will share the info.

I really appreciate this

I really appreciate this wonderful post that you have provided for us. I assure this would be beneficial for most of the people. Looking forward to read more of your post and updates in the future.
selfie pole