Rooftop terrace of Hotel Nijmegen - Lent

Sustainability We care about the planet!

Sustainable initiatives

Sustainability

Innovative heat pumps, Kitchen Air Technology, a bee hotel, and nesting boxes for swifts. These are just a few examples of our sustainable initiatives. Read more here:

Casestudy

The hotel is located at a prominent location in Lent, marking the intersection towards the Waal Bridge and The Crossing to Nijmegen. The new construction consists of two main volumes. A base building with a parking garage, entrance, lobby, restaurant, and conference center, and a tower with rooms and a wellness center.

The plinth building follows the contour of the plot and is oriented towards the newly formed station square. This part of the building has a robust materialization. The roof of this volume serves as a raised ground level. The park-like layout provides a peaceful spot in the hustle and bustle of the city. Like a finely cut diamond, the tower creates an interesting contrast with the base. The recessed reveals have a different color scheme and shift at the lower and upper floors. This creates a variation in openness that changes depending on the position and viewing angle.

Together, an ensemble is created, which blends into the environment, creates space, and plays with transparency.

The main innovative and environmentally friendly design measures of the building

Minimal loss surface area due to compact design.
Low-temperature heating and cooling (LTHC)
Air treatment with heat recovery and CO._{I'm sorry, but I need a text to translate. Please provide a text for translation.}steering.
Connection of hot tap water to residual heat from refrigeration and freezing technology.
Daylight and presence control in lighting.
Energy-efficient LED lighting and fluorescent lighting equipped with high-frequency ballasts.
Green roofs contribute to reducing CO2._{I'm sorry, I need more context or information to provide a translation. Could you please provide the text you would like me to translate into English?}reduction.
Rooftop vegetable garden.
Drainage in the wadi municipality.

Gross floor area in square meters (NEN 2580)
17,290.9 meters^{I'm sorry, but I need more context or information to provide a translation. Could you please provide the text you would like me to translate into English?}
Total site area of the location in square meters^{I'm sorry, but I need more context or information to provide a translation. Please provide the text you would like me to translate into English.}
7,559.5 meters^{I'm sorry, but I need more context or information in order to provide a translation. Could you please provide the text you would like me to translate into English?}
Floor areas by function and their dimensions (NEN 2580)
Ground floor area: 347.7 sqm^{I'm sorry, I need more context or information to provide a translation. Please provide the text you would like me to translate into English.}
Kitchen: 207.6 sqm^{I'm sorry, but I need more context or information in order to provide a translation. Could you please provide the text you would like me to translate into English?}
Lodging function: 4,588.7 m^{I'm sorry, I need more context or information to provide a translation. Could you please provide the text you would like me to translate into English?}
Technical room: 221.2 m^{I'm sorry, I need more context in order to provide a translation. Please provide the text you would like me to translate into English.}
Meeting function: 2,691.9 m^{I'm sorry, I need some text to translate. Could you please provide a text for me to work on?}
Office function: 119.2 sqm^{I'm sorry, but I need more context or information in order to provide a translation. Could you please provide the text you would like me to translate into English?}
Traffic areas in square meters (NEN 2580)
Approximately 1,459.7 meters^{I'm sorry, but I need a text to translate. Please provide the text you would like me to translate into English.}
Storage spaces in square meters (NEN 2580)
Approximately 338.7 meters^{I'm sorry, I need more context or information to provide a translation. Please provide the text you would like me to translate into English.}
% surface area of land intended for use by the (local) community
3%: public bicycle parking in parking garage with 431.8 m^{I'm sorry, but I need more context or information in order to provide a translation. Could you please provide the text you would like me to translate into English?}
% surface area of buildings used by the (local) community
10%: meeting rooms with 799.7 m^{I'm sorry, I need a text to translate. Could you please provide me with a sentence or a paragraph to work on?}

Expected energy consumption in kWh/m² GFA
Approx. 86 kWh/m² GFA
Expected consumption of fossil fuels in kWh/m² GFA
Approx. 34 kWh/m² GFA
Expected consumption of sustainable energy sources in kWh/m² GFA
Approximately 45 kWh/m² GFA
Expected water consumption m3/person/day
Approximately 0.2 m3/person/day
Expect % of water consumption to be sourced from rainwater or greywater
not applicable

A list of pioneering/implemented sustainable measures in the social or economic field.
We want our guests to have a unique experience in our hotel, and sustainability also plays an important role. The menu of our restaurant will prioritize organic, responsible, and local products. We also aim to select suppliers based on their sustainability performance. For example, all paper used in the hotel will be FSC certified. We will also collaborate with various local organizations to organize events for residents, such as a bingo for the elderly and a Christmas dinner. Additionally, we will regularly sponsor charities.

Ambitions, planning
The client's ambition is to achieve the BREEAM Excellent certificate for both the design phase and the construction phase. The high sustainability ambition ensures added value for the hotel owner and guests. To achieve this ambition and monitor progress, weekly meetings are held with the design team, the client, and the BREEAM expert.

Technical solutions
Energy generation:

Fire installation:
Heating using heat pump technology, 35-45 degrees
Cooling by means of heat pump technology, 8-18 degrees

Tapwater:

Central heating boilers
High-temperature heat pump
Connection of hot tap water to residual heat from refrigeration and freezing technology.

Air treatment:

Hotel rooms: With cross-flow heat recovery
Meeting rooms: Heat recovery with control on CO.₂a door by Twincoil

Heating/cooling:

Hotel rooms: Fan coil units for cooling and heating can be controlled per room.
Meeting rooms: Underfloor heating with convectors/radiators/fan convectors
The lighting is carried out using energy-efficient lamps, with as much LED lighting as possible. All fluorescent lighting is equipped with high-frequency ballasts.

Process, organization
The BREEAM responsibilities are shared with the client, the architect, the installation company, the main contractor, and the BREEAM expert. The BREEAM expert is responsible for checking the provided evidence in accordance with the BREEAM guidelines established for this purpose.

BREEAM-NL credits
We aim for 90 credit points. The feasibility of the BREEAM-NL credits has been examined and determined at an early (design) stage. This has resulted in clear objectives for the integrated design team.

Costs/benefits
The costs involved in implementing the BREEAM requirements are high. Various parties need to be involved in preparing documents to investigate or demonstrate that certain requirements are met. Also, technical solutions for BREEAM sometimes cost more than conventional solutions.

The investment in these costs is justified, because we believe that a well-thought-out and energy-efficient building is cheaper to manage and maintain in the long term, and that it provides a more pleasant place for employees and guests. This cannot be expressed in euros, but it is one of the most important benefits.

Tips for the next project
For a smooth process, it is advisable to share the responsibility for BREEAM. All parties, from client to subcontractor and end user, are involved with BREEAM and need to provide information or contribute ideas. Additionally, it is also important to start early and regularly review the current status with all involved parties.