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Oostpoort Kavel 1F

In Haarlem, the first social residential tower with a hybrid construction of wood and concrete will soon be built. This 33-meter-high tower, provisionally named Oostpoort Kavel 1F, will contain 100 apartments and is being realized on behalf of the housing corporation Ymere. ABT is providing the building physics, acoustic, fire safety, and sustainability advice for this project.
Credits INBO
Client Ymere
Completion time 2024 - 2025
Market Commercial real estate
Team
In collaboration with INBO, HSB Bouw, CLT-S, Adviesbureau Lüning, Techniplan
Location Haarlem
Project scope 8,859 m2 bvo
Expertises

Compact living on the edge of Haarlem

The residential tower is located near the eastern entrance to Haarlem. The apartments overlook either the polder or the city. Most apartments have two rooms and are intended for various types of households, from starters to single-person households. All apartments have an outdoor space in the form of a spacious balcony or terrace spanning the entire width of the apartment

On the ground floor, there are communal facilities (bicycle storage and mobility scooter storage) and a double-height entrance. Next to the residential tower, there will be a parking garage. This garage is semi-submerged and integrated into the landscape through green embankments and greenery on the parking deck. Residents, neighbors, and passersby can enjoy walking, picnicking, or chatting on benches on the deck.

Credits INBO

Sustainable construction

The building is constructed with CLT (cross-laminated timber) floors and columns around a concrete core. The wood stores CO2, significantly reducing the building’s emissions compared to a similar building with a (regular) concrete structure. The construction meets the requirements of the Metropolitan Region Amsterdam (MRA) timber construction agreement, which stipulates that the construction, excluding the foundation, must consist of at least 50% biobased material

The role of ABT

ABT has contributed its knowledge of wood physics to this project.

The laws and regulations in the Netherlands are not yet adapted to wooden buildings. Therefore, fire safety, considerations went beyond the current laws and regulations, and a risk-based fire safety concept was designed. Due to the building height, the target resident group, and the adjacent parking garage, it was decided to fireproof the CLT constructions.

The project has high requirements for sound insulation between apartments. To meet these requirements, the CLT floor is provided with extra mass on the top and a floating screed. Acoustic decoupling has been applied in various places, and acoustic cladding has been used around the CLT columns.

Images ©INBO

Credits INBO