Transforming Madrid's most centrally located hotel
Carmen, 4 (Puerta del Sol)
Hotel Industry
65.000 sqm
6 months
Madrid, Spain
Hotel Europa, the most centrally located in Madrid
Located in the very heart of Puerta del Sol, Hotel Europa is one of Madrid’s most iconic urban establishments. With a constant flow of guests and an uninterrupted daily operation, the building required a modernization capable of elevating guest comfort, improving energy efficiency, and upgrading its technical systems — all without interrupting hotel activity. For this challenge, the client relied on FLULLE as a global partner, able to integrate construction, installations, and project management within a highly demanding urban environment.
From the outset, we approached the project with our characteristic philosophy: technical rigor, operational flexibility, and a collaborative mindset that enables progress even in complex conditions. The hotel needed to remain open throughout the works, and its location in a protected architectural area with restricted traffic required extremely precise planning. All interventions were executed in phases, allowing the building to stay fully operational and ensuring that every action generated immediate value.
The final result enhances the guest experience, refreshes key areas of the hotel, and — most importantly — optimizes the building’s performance thanks to a comprehensive upgrade of its thermal systems. This technical intervention, delivered with precision and carefully coordinated with hotel operations, became one of the project’s core pillars.
Renovation of air conditioning and domestic hot water systems
The installations project focused on optimizing and upgrading the HVAC and domestic hot water (DHW) systems serving Hotel Europa. As the building is protected and the intervention did not involve a full rehabilitation, the upgrade was defined as a partial reform, designed to significantly improve energy performance while respecting architectural constraints.
Main actions performed
Replacement of the existing chillers with two new air-to-water heat pumps, using eco-friendly refrigerant (GWP < 750), to serve the building’s HVAC system.
Installation of two high-temperature aerothermal heat pumps:
- One using CO₂ refrigerant, dedicated to DHW production.
- A second heat pump using R-407C, installed to compensate energy losses in the sanitary hot-water recirculation loop.
Removal of the existing natural-gas autonomous unit, eliminating an outdated and less efficient energy source.
Replacement of existing circulation pumps with variable-flow pumps, improving energy efficiency and system performance.
Installation of a four-pipe distribution system for fancoils and air-handling units, enabling simultaneous demand for heating and cooling.
Replacement of existing fancoils with new four-pipe units, each equipped with two-way motorized control valves for precise regulation.
Installation of two VRF/VRV variable refrigerant flow systems to serve the laundry area and the gym, both of which have specific thermal loads.
Upgrade and modernization of the centralized control and regulation system, integrating all new equipment and enabling more accurate temperature and energy-use management.
The Challenge
Extremely precise planning
Confort
in the 122 rooms
The intervention carried out by FLULLE not only modernizes a historic hotel but also prepares it for the future with more efficient systems, improved comfort, and optimized day-to-day operations. It is a clear example of how we work: integrating construction, technical expertise, logistics, and service under one flexible, collaborative, detail-driven approach. A complex challenge transformed into a reliable, high-value solution — ready to perform for years to come.
A client always wants to feel supported. A good friend is always happy to do so.
At FLULLE, we offer our clients continuous support even after construction is complete. This is why our FLULLE Facility Services (FFS) division makes perfect sense, providing continuity for each project by taking care of everything they might need.
On this occasion, FFS is handling the comprehensive maintenance of all facilities, as well as providing support and response to any intervention that may be required.
Extreme flexibility.
Services provided
- Fit-out
- Electrical Installations
- Mechanical Installations
- FP Installations
- Facility Services
"It was a pleasure to have had FLULLE as a partner specialized in coworking space Fit-out in a number of our new LOOM locations"
"We have collaborated with FLULLE on different flexible Utopicus Fit-out projects with them as main contractor on 42 Francisco Silvela Avenue, 163 Castellana Avenue and 56 José Abascal Avenue. The key to success on those projects has been the constant collaboration of their teams, forging a confidence relationship and working together to achieve optimal results: the best quality and the shortest execution time. Their evolution in the construction business is very positive, and I foresee a great future for the integrated management of their services"
"I want to thank FLULLE for the professionalism in the work carried out for UCI (Union of Real Estate Credits), especially the construction team led by Javier and Laura. Furthermore, I will recommend FLULLE as a company specialized in implementation works and I hope that we can meet again in the near future"
"With FLULLE, at Utopicus’ offices on Francisco Silvela Avenue we have managed to make a project with more than 50 custom-made pieces of furniture and many tiny details and creative solutions look easy. They found a solution to every problem, and in front of every difficulty FLULLE has put everything in their hands to overcome them. We are eager to work with them again soon!"
"It was a success to have FLULLE for the implementation of our new offices, they are excellent professionals with a great human and project team. of which I would highlight their customer orientation, their orientation to finding solutions and especially their flexibility to adapt to our needs and demands, as well as their agility to respond to unforeseen events and their professionalism in both technical and economic aspects. They have been a true facilitator and partner in an always complex process for any company. Clearly I would count on them again in our projects."
"“It has been the greatest success to have FLULLE for the implementation of our new headquarters. A young and dynamic team, with great experience and professional competence. We couldn't have been in better hands. Thank you for your work and for the love you have put so that we could have this wonderful office”"
"Experts in installations and now with FLULLE’s inception they offer a very interesting comprehensive solution package for all their clients"
"I want to thank Allende Arquitectos as a planner, and FLULLE as a builder, their participation in the upgrade project of one of the most representative neomudéjar industrial style buildings in Madrid, preserving its architectonic value and creating modern, technological and efficient workspaces such as Repsol Electricidad y Gas’ offices in Madrid"
"FLULLE is a Leviton Licensed Integrator since more than a decade ago, offering their clients our solutions thanks to a team of people of the utmost professionality and paired to high quality pre-sales and after-sales services. We hope to extend our collaboration with FLULLE for many years and to achieve many more successes"
"FLULLE bestows upon me the peace of mind of working with a company with so many years of experience. They solve every unforeseen issue and they strive for perfection in every aspect"
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"The interior finishing works they have carried out have had us astonished because of the quality levels and the technology applied. Congratulations on your trajectory over these years"
"I have known the FLULLE team since a short while ago. They were quick to transmit professionalism, reliability and efficiency"
"The building process is a team effort. FLULLE has always collaborated, bringing solutions in order for the project to achieve success"
"The added value FLULLE brings to the table is the proximity of the whole team, their customized assessment, in addition to the knowledge of all the working areas with expert personnel, and counting on very competent partners and/or suppliers. Even under a critical situation such as the Covid19 pandemic hit before the handover of our offices, they proved themselves ready to search for alternative solutions due to the stalling of operations with nearly all of our suppliers, maintaining their due delivery date"
"Working with FLULLE was superbly easy. Their technical team is extremely competent, and their workers are dependable and professional"
"With FLULLE as constructor and BNP Real Estate as planner and project manager, we have participated in different projects and the result has always been magnificent, achieving the highest satisfaction levels in clients. FLULLE focuses on projects with great professionalism and dedication, their priority being their clients’ and their expectations"
"The trust in the team and the pledge towards a proper execution of the project is what I would highlight from our collaboration with FLULLE"
"Collaborating with you has been a real pleasure, as you undertake jobs with great professionalism and commitment, with exquisite taste and a deep knowledge of the industry, helping companies in the development of their projects in optimal conditions. The results are a testament to your great endeavor and your good work. Keep up the good work, you are doing a fascinating job"
"The works undertaken by FLULLE have been of great professionalism, both in the finishing touches and in the support of their workers"
"FLULLE offers their clients an all-round finished product for the construction and management of their real estate assets"
"I’ve known FLULLE since before their inception. Thirty years of continuous work with Paco Cámara and his team, first as an installation and engineering company and later on as general contractor as well, and they are now embarking on a new adventure. We have walked beside Caja Madrid, CDTI, el Club Matador, Fjord, Jazztel, JP Morgan, Museo Thyssen, PWC, Vitra and a bunch of good friends… All the best for the next 30 years of FLULLE!"
"We have been able to see FLULLE’s transformation in the past few months and we have experimented their professionalism and efficiency, the convenience of having a single supplier providing all services brings us peace of mind and trust. Moreover, their Facility team gives us the guarantees necessary to our corporate standards"
"I trusted and I trust them because of their professionalism and dedication to every task they undertake"
"Working with FLULLE is simple, as they are always ready to solve any of our problems. We began with their turnkey program in our Madrid office, with left us fully satisfied, and we continued to maintain a tight collaboration for new operations in our facilities that full under the responsibility of their Facility Services staff, with commendable results"
"A business partner to rely on during the whole project, without a doubt a great choice"
"Multisectorial professionals, flexible and adaptive"
"There is a before and after our first Project together. We are very satisfied with FLULLE’s team in all senses, as we have been able to see firsthand what it’s like to work with a truly flexible business partner, ensuring at every moment that the works for the Regus Alicante, Business World project were being properly carried out"
