Apartments Oeverpolder Katwijk

The plot Oeverpolder is located in the central part of the Hoornespolder, a 1960s reconstruction area. In recent years, this district has undergone a transformation, where living is more focused on the public space and a clearer separation is made between public and private.

In the design for the new-build location, a U-shaped courtyard building was chosen, which in terms of architecture and grain size connects to the existing buildings. The green structure of the neighborhood is reinforced with the design. The transition between the residential building and the public space has been carefully designed. There are no garages, storage rooms and blind facades in the public space. The U-shaped building contains a total of 52 apartments of 53-88 m2. The building on Hoorneslaan has 4 storeys, the other two sides are 3 storeys high. The houses are all accessible via (widened) galleries in the courtyard, parking is partly in the courtyard and partly on public land, on the street.

The masonry architecture is in line with previous transformations on Hoorneslaan, but also fits in well with the existing modern reconstruction architecture of, for example, the adjacent Pniëlkerk. Due to the sloping boundary of the plot on Hoorneslaan, the building block has been given characteristic staggered façades here. It is an all-round designed building that at the same time has a new and unique character, but also fits well in the neighborhood.

Architects Ronald Knappers, Thomas Gillet
Client(s) Dunavie Katwijk
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The house from the beginning of the 20th century was originally the staff residence of the adjacent main house “Malgre tout”. The main house and staff house are seen as examples of the development of country estates in the municipality. As an ensemble, the buildings and the surrounding gardens are of great cultural-historical value. The ensemble has the status of a national monument. The carefully detailed house is built in red brick under a thatched wolf roof. The staff house originally included a garage, horsestables and a driver's house.

In 2018, a design was made for the restoration and modernization of the service residence including a modern extension. A large living room and kitchen will be realized in the extension. A veranda will be added to the extension. Living room and veranda offer a view of a beautiful Hortensia garden. The extension is completely transparent on the side of the garden. On the other side, the extension is embraced by an openwork masonry wall. The wall becomes more transparent towards the edges. By using a heat pump installation with a source, high-quality insulation, and by completely filling the roof of the extension with solar panels, the service house will soon be completely energy neutral.

On the Boerhaave Campus, part of the Bio Science park in Leiden, the historical anatomy-building has been transformed into housing for Phd-students and researchers of the Leiden University. The new apartments are characterized by their high ceilings and old constructions. A small mezzanine is created to function as a bedroom. Right beside the existing building a new appartmentbuilding is erected, designed by Van Gameren of Mecanoo Architects. The total complex contains 166 apartments and is the first step in the complete transformation of the Boerhaave Campus.

In the heart of the Vijfhoek, a picturesque neighborhood in the historic center of Haarlem, stands a large building erected in 1908 by the Waaning company as a factory for Haarlemmer Olie. The building has since been designated a municipal monument. The section facing the Doelstraat originally served a representative function: richly ornamented office spaces were used to receive visitors and convince them of the remarkable qualities of this “miracle oil.” The rear section contained storage and staff quarters, adjoining an inner courtyard with the boiling room, where the sulphur-rich oil was produced a few days each year.

Since the 1980s, the building has been used as a residence. The division between the front and rear sections has been removed, yet the historic atmosphere remains tangible. The new owner asked us to develop a plan to prepare the entire building for a new century—energy-efficient, comfortable, and focused on the enjoyment of living, both along the street and around the inner garden. The boarded-up garage doors have been replaced with generous glazed folding doors. Using flax insulation, the building is insulated from within; new glazing is installed, and the roof is insulated from the outside. Heat pumps and solar panels provide sustainable energy generation. In close consultation with the Heritage Department, all characteristic elements are preserved—allowing the new residents to begin the next chapter in the rich history of this building.

In close collaboration with restoration contractor Burgy, EPOS Advies, and energy consultancy Kroon, a plan of approach was developed. Construction began in February 2024.