Eclectic by character. United in impact.
Carlton Hotels is a family of 11 unique hotels across Europe. Every hotel has its own atmosphere, location and character. What connects us is the way we deal with our impact.
We want our hotels to be more than pleasant places to stay or to work. We want them to contribute something positive, for our people, our communities and the world around us.
That is why we are building a clear sustainability approach for the years ahead. With concrete steps, realistic goals and room to keep learning and improving.
Our people
Our people make Carlton what it is. They create the guest experience, every day.
That is why we are building a working environment where you feel at home, where you are seen as an individual and where there is room to grow.
We offer training and development opportunities, encourage internal progression and work with personal goals that match each person’s talents and ambitions. We bring different generations and backgrounds together and create a place where everyone feels welcome.
We regularly measure how our teams are doing and keep improving where needed. And whether you are just starting out, moving up or moving on, you will always be part of the Carlton family.
Our goal: to create a working environment in which employees can develop, progress and stay connected to Carlton over the long term.
Responsible sourcing & less waste
Much of our impact lies in the everyday choices we make. In what we buy, what we serve and how we handle waste.
We increasingly work with suppliers who are transparent about their products and their origin. When we renovate, we look for opportunities to reuse and we ask questions about materials and lifespan.
At the same time, we are taking steps to reduce waste, increase recycling and cut food waste. For example by purchasing more precisely and matching portion sizes more carefully..
Our goal: we are working towards less residual waste per stay, more recycling and less food waste per stay.
Climate & environmental footprint
We take a critical look at our energy and water use and at our CO₂ emissions. Where can we be smarter about what we use? Where can we use less?
We are mapping this more accurately hotel by hotel and taking steps to improve. Think of energy savings, more efficient water use and exploring more sustainable energy sources. From 2027, we will purchase fully renewable electricity for all of our hotels.
We have the ambition to reduce CO₂ emissions per hotel and work with clear targets to get there.
We are on our way, step by step, with an eye for what is already possible today and what can be better tomorrow.
Local entrepreneurship & community
Our hotels are inseparable from their surroundings. From the people, flavours and stories that make each place unique.
We work with local producers and partners and bring that local identity to life inside our hotels. From dishes on the menu to collaborations with businesses in the neighbourhood.
That way, we give guests more than a stay. We give them an experience in which they really get to know the place. And at the same time, we contribute to a strong and lively community.
Our goal: every hotel develops initiatives and partnerships that contribute to its local surroundings and fit the character of the destination.
One collection, united in impact
Eclectic by character means that every hotel keeps its own identity.
United in impact means that we work on improvement together: each in our own way, but in the same direction.
We share our progress every year in our Impact Report and continue to learn, test and improve.
For us, hospitality goes beyond comfort. It is about attention, responsibility and moving forward together.
Our approach in Haarlem
Carlton Square Hotel is located in the heart of Haarlem, within walking distance of the historic city centre and the city’s green park. The combination of urban energy and a personal atmosphere makes this location unique.
Within the hotel, we work on initiatives that fit both our daily operations and our team culture. Over the past year, social initiatives have strengthened team spirit, and we aim to build on that foundation while continuing to improve how we manage waste and materials.
For 2026, we are focusing on improving composting, reducing and replacing single-use plastics and further optimising waste streams. We are also exploring social initiatives for our team, such as a staff food-sharing fridge and language training opportunities.
Green Key
Carlton Square holds Green Key certification, Gold level (last assessed in 2025). Green Key is the international eco-label for sustainable business practice in the hospitality sector. An independent auditor assesses areas such as our energy and water use, waste separation, purchasing and the way we communicate about all of this. As a guest, you will notice this in the choices we make and in the way our team works together on improvement.
Thinking along with us?
Do you have an idea, initiative or suggestion? We are always open to new perspectives. We would love to hear from you! Please send us an email to info@carltonsquare.nl
