Introduction
- Project description
- Refurbishment project for disused barn hosting roosts for several species, including Natterer's bat, common pipistrelle, soprano pipistrelle and brown long-eared bat.
- Ecologist’s name and contact details
- Ecology Services UK Ltd
- Planning authority
- Macclesfield Borough Council
- Brief site description
- Barn in rural setting, surrounded by horse grazing, extensive hedgerow network, farm fields managed as pasture, occasional farms and private houses.
Pre-works roost structure
- Type of structure
- Building
- Use
- Agricultural Building
- Condition
- Not In Use
- Approx. age
- 100 years
- Main construction material of walls
- Brick
- Roof design
- Pitched Roof
- Roof material
- Slate
- Internal roof structure
- Timber Frame
Pre-works roost description
- Species
- Natterer’s bat
- Number of bats max count
- 2
- Type of roost
- Day Roost
- Evidence of bats
- Bats Recorded Emerging/Re-entering
- Roost location
- Roof Timbers
- Aspect of roost
- S
- Height of roost entrance (m)
- 8m
- Roost material(s)
-
- timberRoofFrame
- Nearest commuting feature
- Hedge
- Distance to nearest commuting feature (m)
- Not reported
Proposed works
- Description of works
- Purpose built bat boxes and bat barns were provided as compensation for roost removal during the refurbishment process.
- Type of impact upon the roost
- Long-Term Roost Modification and Roost Loss
Proposed mitigations
- Type of mitigation
- Compensation
- Specific technical detail of measure
- An alternative building with suitable replacement features (including roost environments) were provided within 65 metres of the original barn which was refurbished.
Size: 8030mm x 4000mm base dimensions
Materials: Brick outer walls, breeze block inner walls, slate roof with bitumen felt underlining for the roost features affected by the development.
- Roost location
- Bat House
- Aspect of roost
- N
- Height of roost entrance (m)
- Not reported
- Roost material(s)
-
- Brickwork
- Bitumen Felt
- Slate Tiles
- Nearest commuting feature
- Hedge
- Distance to nearest commuting feature (m)
- Not reported
Actual mitigations implemented
- Type of mitigation
- Compensation
- Specific technical detail of measure
- An alternative building with suitable replacement features (including roost environments) were provided within 65 metres of the original barn which was refurbished.
Size: 8030mm x 4000mm base dimensions
Materials: Brick outer walls, breeze block inner walls, slate roof with bitumen felt underlining for the roost features affected by the development.
- Roost location
- Other
- Aspect of roost
- N
- Height of roost entrance (m)
- Not reported
- Roost material(s)
-
- Brickwork
- Bitumen Felt
- Slate Tiles
- Nearest commuting feature
- Hedge
- Distance to nearest commuting feature (m)
- Not reported
Monitoring data
- Length of monitoring proposed
- At least three years
- Frequency of monitoring
- Not reported
- Type of monitoring
- Roost Inspection
- Date and time
- 1st June 2011
- Evidence recorded
- First bat droppings noted in June 2011, along with 3 adult brown long eared bats roosting against ridge beam 3 years after development.
- Interventions made
- Reduce light levels in bat barn roof space. Prevent barn owls and kestrels gaining access to bat barn.