Norfolk Bat Brick

£21.37 Ex. VAT
In stock

Frost-free clay bricks known for attracting 1 to 3 bats per brick when placed in tunnels, cellars, and bat houses.

For an alternative option, check out the Schwegler 1FE Bat Access Panel we have available.

If you want to support crevice dwelling bats in tunnels, cellars, and bat houses, these natural clay bricks are designed to provide entry into a cavity as they are sealed across the back. 

The first prototype of the Norfolk bat brick was designed in 1984 to aid in overcoming a shortage of hibernation crevices for bats in suitable habitats. Since then the design has been carefully optimised to maximise the effectiveness of the brick for attracting and protecting crevice hibernating species.

Key Features: 

  • History of being deployed with success
  • Commonly attracts 1 to 3 bats per brick
  • Ideal for dark, damp places with little disturbance
  • Can be used to repair existing brick structures
  • Can be built into the concrete facings
  • Kiln fired so that they are frost-proof


Why do we need to protect bats?

Bats play an important role within our environment. As well as performing some pollination, bats are a natural control of insect populations as these are their main food source. Bats are also a good indicator species of environmental health, with changes in populations reflecting local biodiversity.

Bats are a schedule 1 protected species under the Wildlife & Countryside Act. It is illegal for any member of the public to disturb a roost, handle or kill any bat. Bat boxes therefore may only be inspected by a licensed bat worker. However, you can monitor your bat box without disturbance, look for mouse-sized droppings beneath the box as a clue to occupation or observe from a distance at dusk to see if bats are exiting the box to hunt.

MATERIAL: Absorbent clay, roughened with sand and fired to about 1100ºC to make them frost-proof.

DIMENSIONS (MM): 200 x 100 x 70

SPECIES: They have a series of slits of the correct size for Daubenton's, Natterer's, Brown Long-eared, Brandts, Whiskered, and Barbastelle to hide in.

SITING: These bricks would typically be used to replace an existing perhaps crumbling brick in a brick-built vaulted tunnel. The old brick should be carefully removed using a grinder, drill, or cold chisel, taking proper safety precautions, then inserting the bat brick using an appropriate mortar (e.g. a soft lime mortar for old brickwork, or 6:1 sand:cement for modern brickwork). Modern resin-based mortars can be used, but they should be used sparingly, only in the summer when no bats are present, with extra ventilation and so placed to provide a water-soluble 'wick' with the original substrate.

Prop the brick in place with a length of timber or an "Acro-prop" for a day or so until set, then carefully point up around any gaps. They are NOT 'entry bricks', neither were they designed to be used facing into the cavity wall of modern houses, and are considered unlikely to be used by bats in this situation.

In existing concrete tunnels or sites where it is considered difficult or undesirable to excavate or damage the existing surfaces, then a surface attachment is acceptable, though may not give quite such good results. Embedding the bricks

into the concrete roof of a new tunnel also works well. Simply place the bat brick on the surface of the shuttering ply, having first filled all the holes with sharp sand or grit, allowing a little to spill out when placed. This stops wet concrete from entering the holes and gives a rough gripping area around each bat brick after the shuttering is removed. Do seek the advice of a structural engineer before doing this, as these units may influence the structural integrity of a cast concrete tunnel roof.

MAINTENANCE: Can be very easily checked using a torch. Cleaning is not necessary (self-cleaning).

We now offer FREE UK SHIPPING for online orders over £30 to the UK mainland (under 30kg), including service & repair items. For information on qualifying requirements for free shipping, please see our delivery page.

We aim for next working day delivery on all UK mainland orders received before 3.00pm. Where products need to be made to order or are not a regular stock item, or during busy times of year, despatch times may be longer.

If your order is urgent please call us on 01451 833 181. There is usually an additional charge for timed delivery.

We will always use a reputable courier company and require a signature on delivery. Smaller items are usually shipped using Royal Mail or DPD, and larger items are sent using TNT or Tuffnells. Palletised deliveries are with Pallex.

We will email you shipping confirmation after your order has been despatched. Where available, you will also receive tracking notification by email or text. If you need to track your parcel urgently then please contact us.

We can deliver to anywhere in the world, but you may need to contact us for a quote.

If your order doesn’t qualify for free shipping then UK mainland delivery starts at £6.67 ex VAT, while Highlands and Islands delivery starts at £12.50. You can calculate shipping costs using the basket.

For full delivery information please click here.

Important Information About Backorders

At Wildcare there are times when items are only available on a backorder basis, either due to high demand or if the item is a special order item. We refer to these as ‘backorder items.

Backorder items are clearly listed on our website as ‘Order To Reserve Stock (Backorder)’. Items that are in stock and ready to be shipped immediately are listed as ‘In Stock’.

When you place an order for a back order item or an order that includes back order items, a member of our team will be in contact within 48 hours of your order to confirm the lead time for delivery. For any queries before then, please call us on: 01451 833 181

Avoiding Disappointment

We cannot guarantee that a backordered item will come back into stock or be delivered for a specific date, however we will always do our best to keep you informed and updated.

If your back order is urgent or required within a specific time frame we suggest to call us on 01451 833 181 so we can keep your requirements in mind throughout the waiting period.


If you receive damaged items or the wrong goods, please let us know straight away so that we can arrange for them to be returned to us and replaced as quickly as possible.

You will need to obtain a Returns Number  - please call us on 01451 833 181 or email

Please return goods, WITH THE RETURNS NUMBER MARKED ON THE PARCEL to: Wildcare, Eastgate House, Moreton Road, Longborough, GL56 0QJ

We may ask for a photograph any damaged items before we agree to replace them.

Please click here to view our full returns policy.