Projects we have worked with

We have worked with Architects across the country in an array or projects to incorporate biodiversity into new projects and obtain Biodiversity Nett Gain  (BNG) Members of staff have a fountain of knowledge regarding technical and ecology aspects to aid your project.   Here are a few of the projects we have work with.

Great Ormond Street Research Centre

Black Horse Road Project

Cambridge University Halls or Residence

Battersea Power Station Regeneration


SpeciesHole Size & TypeIdeal height above ground
Blue Tit28mm diameter1.5 – 5 metres
Coal Tit28mm diameter1.5 – 5 metres
Crested Tit28mm diameter1.5 – 5 metres
Great Tit28mm diameter1.5 – 5 metres
Grey Wagtail30mm square cut out2 – 8 metres
House Sparrow34mm diameter2 – 10 metres
Nuthatch34mm diameter3 – 10 metres
Pied Fly Catcher34mm diameter2 – 4 metres
Redstart40mm diameter3 – 10 metres
Black Redstart40mm diameter2 – 8 metres
Spotted Fly Catcher60mm diameter2 – 5 metres
Starling50mm diameter3 – 10 metres
Tree Creeper34mm diameter1.5 – 5 metres
Swift75mm cresent5 – 10 metres
Wren28mm diameter1 – 4 metres
Bats20mm crescent at base3 – 10 metres

Commercial sales

We offer a bespoke service for commercial sales with bulk discounts and direct invoicing. Request a call back to discuss your next project.

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Freqently asked questions

What is the likely take up rate of boxes once installed?

Results from boxes we have fitted indicate a 75% take up rate (i.e. a nest or roost site) within the first 12 months. We are delighted to say that to date, 100% of boxes used for nesting have been used again the following year.

What is the range of bird species that will use your nesting boxes?

House sparrows, tit species, wagtails, flycatchers, black redstarts and starlings will all use the standard box; the aperture size is modified dictating which of the above are likely to be attracted.

The swift nest box is modified with an arch shaped entrance aperture; a shallow internal cup assists and accelerates nest construction. A sparrow nest box is constructed as a terrace, with two  separate compartments, each with its own entrance.

How durable are your boxes?

The body is made from recycled polypropylene – an extremely tough and durable material used in construction for cavity trays and damp proof courses. This means the box lets in minimal amounts of moisture in adverse weather conditions making it such a highly desirable dry winter roost.  As the plastic will be exposed to virtually no sunlight (if any), degradation is effectively eliminated. As a result the boxes are expected to last for the lifetime of the building in which they are housed – an important feature in terms of environmental planning.