The Plantsoen in Leiden is well known for the historical appearance of both the city park (1836) and the houses of the last quarter of the 19th century. The park was originally landscaped on the edge of the city in the place of an old defense belt. At the entrance of the park at the east side the monumental building Plantsoen 1 – 3 is redeveloped in a complex with 6 apartments. The apartments of about 150 m² are provided with all luxury and comfort, such as a private indoor garage, spacious roof terraces and an elevator, while retaining the historical look and value of the building. Redevelopment also applies to sustainability; obtaining Energy label A. Exterior facades, window frames and roof are additionally insulated. The houses are underfloor heated and solar panels are provided on the roof.
The municipal monument at Plantsoen 1 – 3 is divided over three floors and a basement. The property at number 1 was originally a fully detached house, number 3 was part of a block of 3 houses. Both buildings date from 1875 and were connected in 1957 and converted into one large nursing home. In this function change, the original qualities have largely been lost. The round expansion at number 1 dates from 1993.
In the new layout with 6 apartment, the monuments are restored to their former glory by restoration contractor Burgy from Leiden. The façade of the intermediate building is renewed and aligned with the monuments. The existing façade of the round building is finished with a bronze wall cladding, a ‘veil‘ with a leaf motif. This pattern is inspired by the leaf motifs and decorations of the 19th century, which can still be found in various places along the Plantsoen. The round with ‘veil’ becomes a special recognition point in the inner city.
Each apartment has both rooms in the monumental area as well as in the newer parts. The interior of the monumental buildings is provided with appropriate details to bring back the historical character as much as possible. This specific part is provided by Verlaan & Bouwstra architects from Vianen.
On the inside buyers have a lot of freedom of choice; they can choose for an even richer historical finish with wall tension, panelling and en-suite layout or a tight, modern finish and layout; both are possible. Each apartment is unique, has its own layout and its own character. Only the view is the same for all apartments; they all look out over the beautiful monumental city park the Plantsoen at the town canal.
The redevelopment was completed in July 2018.
| Architects | Ronald Knappers |
| Employees | Krijn Tabbers |
| Client(s) | restoration contractor Burgy, Leiden |
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 glory — original 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
At the beginning of the Kruisweg, the housing project ‘Gemaalhuis’ marks the entrance to Hoofddorp. In collaboration with Timpaan, RROG Urban Planning and Landscape and IBB, moes have been realized in a place where offices used to dominate in the past.
The design for 83 dwellings near the center of Hoofddorp provides a transition between the village ribbon development along the Kruisweg and the large, urban scale that Hoofddorp aspires to. At the design site, the original polder structure was situated perpendicular to the direction of the rest of the Haarlemmermeer. In the design, a passage has been made here in the building block: a quiet residential court without cars and shared use of public space. The buildings are all-sided, refers to the past and seems to have been there for some time without being historicizing. The architecture is robust and stony. Rich brick details refer to the steam pumping stations that stood at the beginning of the creation of Hoofddorp. The complex is a neighbourhood in itself and has variety of housing typologies; single-family houses, veranda houses, terrace houses and apartments. The apartments are designed as freely divisible lofts.
The homes were completed in June 2020.
Middelsee is the expansion plan on the southwest side of Leeuwarden, based on an urban design by West 8. The Frisian water city serves as a source of inspiration. Commissioned by the smallest housing association in the Netherlands, we have designed a plan for homes arranged around two green courtyards. It forms a small-scale community with plenty of space for encounters, and a robust waterfront with the apartment building as its eye-catcher.
Using simple means, variety is created so that no more than two houses are ever the same. The foundation remains consistent: a compact floor plan, lightly jointed red brickwork, and solid white window frames. We introduce variation through a dormer or a brick roof extension, a roof edge detail, or a distinctive entrance feature. The client’s existing housing stock in Leeuwarden’s city center also served as inspiration — a characteristic working-class neighborhood with abundant greenery.
In our plan, residents meet each other around private stoops and gardens bordered by low hedges, as well as along the wide galleries on the timber façade of the apartment building. Shared bicycle storage areas and shared cars also contribute to the sense of community.
Together with restoration contractor Burgy from Leiden, the back house, the garden house of the house at Garenmarkt 9 / 9a, has been completely restored and modernized. The new owner lives in this part. The front house with a number of apartments / studios for rent will remain unchanged for the time being.
The house at Garenmarkt 9, 9a is also popularly known as 'Thorbeckehuis'. The house has one of the largest private backyards in Leiden. In the Secret Annex, the garden house (No. 9a), the liberal statesman Johan Rudolph Thorbecke wrote in 1848 the revision of the Constitution, which turned our country into a constitutional monarchy. Thorbecke has lead three cabinets from 1849. A gable stone in the national monument reminds of the habitation by the liberal statesman and professor of law (1798-1872).
