EN
▾
EN
▾
A large-scale redevelopment project is planned in Amersfoort, where De Vries Ontwikkeling intends to transform an existing office building into a modern apartment complex. As part of the redevelopment, balconies will be added to the exterior to significantly improve residential quality. However, interventions to the building envelope could not proceed without ecological consideration. Ecological surveys carried out by Eco Quickscan identified a protected maternity roost of the common pipistrelle within the building.
To ensure the works could proceed in both a legally compliant and ecologically responsible manner, the building had to undergo ecological exclusion during a specific seasonal period. Unitura was appointed as the specialist contractor to manage and carry out the entire process, enabling the redevelopment to commence without delay.
The ecological exclusion project in Amersfoort presented a unique technical challenge. As the exact location of the mating roost within the cavity wall could not be determined with precision, the entire office building had to be preventively made unsuitable for bats. Due to the scale and height of the building, standard access equipment alone was insufficient for carrying out the works safely and effectively.
For the execution of the works, a 60 metre tower crane and several specialised aerial work platforms were deployed. Our technicians systematically inspected the entire façade. Using our self developed exclusion flaps (EF3) and professional sealing foam (VS1), all potential access points, including open perp joints and gaps, were carefully sealed. The exclusion flaps function as a one way system: bats already present inside the building can safely leave, but are unable to re enter the cavity due to the flap mechanism.
The successful ecological exclusion works in Amersfoort were carried out in accordance with strict legislation and ecological best practice guidelines. By undertaking the works during the appropriate ecological period, outside the hibernation and maternity season, disturbance to the local bat population was avoided. In this process, Unitura acted as the link between the property developer and the consulting ecologist.
Our project managers monitor not only the technical execution, but also the schedule. In transformation projects such as in Amersfoort, timing is crucial; the nature clearance must be completed before the demolition hammer or construction crew arrives. Our large stock of materials and in-house machinery allowed us to move quickly on this site.
To prove that the mitigation was carried out correctly, we record every action digitally. The work in Amersfoort is recorded step by step in our implementation app. This includes photos of the installed exclusion flaps and the sealed butt joints at high altitude.
Upon completion, the client receives a complete file in PDF format. This report is essential for the ecological logbook and serves as official proof to the competent authority. With this, Unitura guarantees that the transformation from office to apartment complex in Amersfoort complies with all nature legislation.
>
>
>
>
>
>
>
>
