CALYPSO, a construction economics consultancy

CALYPSO supports clients, architects, engineering consultancies, and contractors throughout France with specialist expertise in construction economics. We bring a technical and strategic approach to securing costs, strengthening decision-making, and optimising projects from the earliest design stages.

Our added value.

At CALYPSO, we put our passion to work for your projects to help build a more sustainable and responsible future. We turn your digital models into reliable studies, with precise cost estimates and tailored solutions. Eco-design lies at the heart of our approach, enabling environmental considerations to be integrated from the earliest design stages.

Our Services

A blue calculator with a screen and a keypad, depicting a construction economist doing calculations.

Cost Estimation and Overall Cost of the Works

A rigorous approach designed to improve the reliability of every estimate, from early-stage budgets to detailed quantity takeoffs.

BIM Modelling and Quantity Takeoff

BIM use designed to improve the reliability of quantity takeoffs and cost estimates.

A sheet of paper with text on it and a pen next to it, representing the job specifications for a construction economist.

Drafting of CCTP and written contract documents

Reliable and usable descriptive documents, designed to facilitate both tendering and execution.

A graph showing an upward trend, with a dotted line and an upward-pointing arrow, used to illustrate the statistics of a construction economist

Cost Monitoring

Continuous cost management throughout every phase of the project to maintain the right balance between design and budget.

Icons from several pages of a DPGF compiled by a construction economist.

Quantity Takeoffs and Bills of Quantities

Accurate quantity takeoffs and well-structured cost documents for clearer tendering processes.

Two books stacked on top of each other, one in the background and another in the foreground, to represent the construction cost estimate prepared by a construction economist.

Tender Documentation Preparation and Consultation

Comprehensive management of the tender process, from the preparation of the tender documentation to the technical analysis of bids.

Areas of expertise

Residential

CALYPSO works across all types of residential projects, including multi-family housing, student residences, and both public and private housing developments. Our approach is designed to secure costs, support reliable decision-making, and ensure the technical quality of each project.

Image of a government building illustrating the role of a construction economist in public projects.

Public facilities

CALYPSO supports public and private clients in the delivery of facilities such as daycare centres, schools, libraries, museums, and hospitals, with particular attention to functionality, sustainability, and cost control.

Illustration of a large office building to depict the role of a construction economist in the commercial building sector

Tertiary

CALYPSO supports office, retail, technical facility, and industrial projects through a rigorous cost assessment approach, ensuring efficient, well-controlled operations tailored to their intended use.

Let's talk about your projects