Independent Workplace Design Consultancy

50 experts in consulting, architecture, and project delivery
35 years of experience
6 European countries

One goal: to create a workspace that truly fits your needs by finding the right balance between ambition, functionality, and constraints.

L'équipe Ronn Square dans le showroom
Les équipes Ronn Square au showroom
Showroom Ronn Square et son équipe
L'équipe Ronn Square au travail dans le showroom
Collaborateurs Ronn Square dans le showroom
Espace showroom de Ronn Square
L'équipe Ronn Square en réunion au showroom
Showroom et équipe Ronn Square
Collaborateurs Ronn Square au showroom
L'équipe Ronn Square dans ses locaux

Ronnsquare is

+1M m² of office space completed
35 years of experience
50+ dedicated experts
10 year warranty

Committed to your success, we transform your challenges into cohesive and high-performing workspaces. Between ambition, functionality, and constraints, we find the right balance

Our Methodology

01

Advise

This initial phase, focused on understanding your needs and challenges, allows us to define the strategy best suited to your workplace and real estate project. We then present an initial design proposal, giving you a clear view of the aesthetic, financial, and technical aspects of what your project could become.

02

Design

We develop the detailed design of your project: aesthetically through the approved workplace concept, technically through the evaluation of the most suitable solutions, and financially through detailed consultations and cost planning. Progressive budgeting gives you real-time visibility into the financial impact of every decision and project approval.

03

Deliver

We commit to delivering your project at a fixed, final price with no unexpected extras. Our teams manage every stage of the execution process, from planning and site safety to ongoing construction supervision and quality control, through to final handover and workspace inauguration. Our guiding principle: deliver the project on time and within the agreed budget.

Progressive Budgeting

Gilles Roncoroni, Directeur Général Associé de Ronn Square

Strong Values

Ronnsquare is a people-focused company where everyone contributes to a shared success. Our values guide everything we do—they define who we are, what brings us together, and above all, what we build together.

Gilles Roncoroni, Managing Director & Partner

Performance

Tangible Results and
the Highest Standards

Teamwork

Succeeding Together Through
Collaboration and Shared Knowledge

Agility and Excellence

Moving Fast While Maintaining
Consistent Excellence

Humility

Listening, Learning, and Growing
Through Experience

Innovation

Continuously Striving to
Improve, Experiment, and Grow

RONNSQUARE ESG
Policy

Our Commitments
to the Environment

We are committed to sustainability at every level: waste recovery and recycling, circular economy practices, responsible sourcing and material certification, reducing consumption and waste, and promoting eco-friendly mobility and environmentally responsible practices.

Our Fair and Inclusive
Social Policy

We place health, safety, and fairness at the heart of our priorities by fostering a healthy and respectful work environment, supporting employee growth and development, and contributing to local initiatives alongside associations and public institutions.

Ethics and Transparency
in Our Practices

We act with integrity and transparency, protect the data of our stakeholders, comply with laws and human rights standards, and maintain a zero-tolerance approach to corruption and fraud.

Our Latest Projects

Your Key Contacts

Experts Dedicated to Your Project

Photo de Fiorenzo RUSSIER

Fiorenzo RUSSIER

Senior account Manager

Linkedin
Photo de Carwyn HEYWOOD

Carwyn HEYWOOD

Pre-Construction

Linkedin
Photo de Denis ONCINS

Denis ONCINS

Construction Lead

Linkedin
Photo de Nawel BENFERHAT

Nawel BENFERHAT

Lead Designer

Linkedin

Our Locations

Based in Paris, Operating Across Europe

Carte de l'Europe - zones d'intervention de Ronn Square

Headquarters in Paris

1–3 Rue Jean Richepin
93160 Noisy-le-Grand, France

Presence in 6 European Countries

France
Germany
Spain
Italy
Ireland
United Kingdom

Client Testimonials

They trust us

Projet d'aménagement Naarea par Ronn Square
Projet d'aménagement Niterra par Ronn Square
Projet d'aménagement Merz Aesthetics par Ronn Square
Projet d'aménagement IM Projet par Ronn Square
"Ronnsquare is a serious company that respects its clients and knows how to listen to their needs. Their expertise in construction management is a major asset that greatly contributed to the success of our fit-out project. We would highly recommend them for any similar project"
Jean-Marc Magnet
Jean-Marc Magnet Real Estate Director – Naarea
"We would like to thank Ronnsquare and everyone involved in the project for their attentiveness and commitment throughout the process. It was truly excellent work"
Maxime Vigouroux
Maxime Vigouroux Chief Manager – Niterra
"We were particularly impressed by the excellent collaboration between the project manager and the talented architect, who delivered a project that perfectly matched both our constraints and our aspirations"
Nicolas de La Hosseraye
Nicolas de La Hosseraye Chief Executive Officer – Merz Aesthetics
"What impressed me most about Ronnsquare was the quality of the relationship, the availability of the team, their responsiveness, and their ability to truly understand and address our requirements."
Philippe Régis
Philippe Régis President – IM Projet

FAQ

Our methodology was developed by experts with more than 35 years of experience in the workplace sector. It combines the best of traditional project delivery and design & build approaches into a unique process that enables projects to be delivered up to 25% faster.

Working with Ronnsquare means having a single point of contact—your project manager—supported by the right specialists whenever required by the scope and complexity of your project. You will always have access to the expertise needed to address your requirements, whatever the subject may be.

No. On average, our projects cost 20% less than a traditional approach, thanks to our unique methodology: a strong upfront strategy phase to define and control the budget, progressive cost planning that ensures full transparency, and a commitment to a fixed, final price.

Workplace projects involve many risks, including budget overruns, schedule delays, technical challenges, and safety concerns. At Ronnsquare, we take full responsibility for your project. As your single contractual partner, we use our methodology to identify and eliminate risks before they arise.

RonnSquare Paris, France
RonnSquare Paris, France
RonnSquare Paris, France

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