AREA: 15,542 m2
PHASE: in use


Construction description

Concrete structure building with 19 floors tower A + 8 floors Tower b

Uses layout

Ground Floor: RECEPTION lobby,common areas, office
Ground Floor (-1): cafeteria, dining room, indoorpool, gym, kitchen
Level 1 – Level 19: 206 rooms
Basement: parking, services…

Envelope characteristics

The building is oriented to south. Prefab concrete panels on the façade + 2PYL insulated internal lining. Single and double glazing on top floors. Double glazing on groundfloor+courtain wall.

Building Systems

Heating: natural gas boiler and HP
Air Conditioning: General units to satisfy common and private activities + splits and casette to support specific precints.
Ventilation: natural
HVAC controls: central for heating. Distributed for AC and Ventilation.
DHW: Natural gas, geothermal hp and Thermal collector to support production.


The first renovation step covers a set of measures which represent a further step in the renovation strategy. Most of the renovation actions covered in this package, are focused more on improving the lighting systems, control standards, and DHW consumption savings. It should be considered the installation of smart meters in the new pieces of equipment, in the lighting, out of each AC circuit to the rooms, and common areas. There is one additional measure which continues the removal of inefficient equipment of the previous step, which is the inhabitation of the baseboard heating network. This renovation package covers the installation of PV technology in the roof, substituting the inefficient and rather obsolete solar thermal installation and integrating pvs on the balconies located on the south façade. Replace the Natural gas boiler with heat pumps and the kitchen appliances. The third and last renovation package aims to finish the different strategies started in the previous ones, meaning control strategy, passive measures, and renewable contribution. The goal is to try to make the hotel as close to the nZEB as possible, while addressing other normative-compliant aspects, health and wellbeing, for instance.
This kind of buildings are very demanding in terms of electricity and instant hot water production. Reducing the impact by installing more efficient and sustainable systems such as heat pumps and LED have a huge impact on energy consumption. But overall, it is very important to make the buildings real producers of the energy they demand. Producing renewable energy is what increases the sustainability level and goes together with high efficient systems of DHW and HVAC. Kitchen appliances and pumps are important to look for.



Non Ren Primary Energy: 22.6%

Heating: increase of 100%

Cooling: 14%

Ventilation: natural forced by the AC system

Domestic hot water: 37% energy savings

Lighting: 72%

PV Production: 13.9 kwhPE/m2y

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 754159. The information in this publication does not necessarily represent the view of the European Commission.
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