Restoration and extension house

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.

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In cooperation with Smits bouwbedrijf, VVKH has won the european tender to develop a new housingarea in district Dieperhout in Leiden. The project consists of 48 dwellings, 12 apartments and a care facility of 1500m². Start of the constructionwork is planned in may 2015, because thats when a current school will move to a new building and the site will be available.

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.

For the residential house Rapenburg 49 in Leiden, a listed national monument, we designed a plan that both enhances sustainability and strengthens the building’s historical and spatial qualities.

The house consists of a front and rear section. The period rooms in the front house have been restored to their former gloryoriginal details and colors were reinstated, and new wall coverings were applied. The family, with two children, lives in the rear house, which they wished to renovate as sustainably as possible.

By implementing a breathable insulation system, a new insulated ground floor, and an air-source heat pump, the rear house has been successfully taken off the gas grid. During the renovation, the layout was improved, and a dormer and several roof windows were added. The connections on the ground floor between the kitchen and living/dining room, and on the upper floor between the bedroom and library, were reinstated. In all interventions, a careful balance between modern technology and historical awareness was sought.

The project was realized in close collaboration with the client, restoration company Burgy, and Erfgoed Leiden.

Photography: Arjen Veldt

In Wassenaar, 40 duplex houses owned by the housing association St. Willibrordus have been replaced by 86 social rental dwellings, primarily intended for starters and seniors.
The site of the new social housing lies within a village extension from the 1960s. At the time, this was the northernmost district of Wassenaar — spaciously laid out, with views over meadows and farmhouses. In designing the plan for the replacement housing, we built upon the core qualities of the existing neighborhood: generous street profiles, front gardens, and abundant greenery.

The new social housing is distributed across six buildings arranged around a shared courtyard garden. By removing the Stompwijckstraat that previously ran between the plots, space has been created to accommodate residents’ parking within the block, while also allowing room for the communal garden. Along this garden, a community facility has been incorporated.

The buildings feature a formal frontage with so-called ‘zoom dwellings’ on the ground floor — shallow homes with their entrance and a small front garden facing the street. The rear sides adjoin the parking area, which is located beneath an open, green deck. The existing tree structure of the area has been preserved. To ensure privacy for the front gardens, a green strip separates them from the sidewalk. The upper-level homes are accessed via wide external galleries.

The urban design was created by Studio VVKH. To ensure the buildings align in scale with the surrounding structures along the long streets, the façade of the top (third) floor is set back slightly from the building line. The balconies create a connection with the street and are subtly angled to optimize orientation toward the sun. On the northern park side, the buildings are more robust in character, with their height responding to the adjacent apartment block.