1. Preliminary / Upstream phase

• Risk and issue studies for the project
• Feasibility studies, program definition, budget definition
• Scenario development and provisional timetable
• Integration of environmental components
• Management of administrative and insurance matters
• Preparation of calls for tender and drafting of technical & contractual documents (detailed brief, CCAP, RC, AE)
• Appointment of the design and realization consortium

2. Design and study phase

• Monitoring of design stages (APS, APD, PRO)
• Assistance with steering committees and reporting
• Validation of building permit application documents
• Organization and oversight of contractor consultations
• Verification of the pieces in the Contractor Consultation File
• Preparation of contractual documents
• Selection and awarding of construction contracts
• Budgetary monitoring and administrative formalities

3. Construction and execution phase

• Coordination with the operator and the project management team
• Participation in COPIL meetings and site meetings
• Validation of progress payments, issuance of service orders and amendments
• Monitoring deployed means for correct execution
• Contractual and financial management
• Assistance with final acceptance operations and tracking defect removal
• Verification of end-of-works documents

4. Operational phase

• Monitoring of any failures of claims during the Guarantee of Perfect Completion period
• Verification of achieving objectives and delivery of analysis report

Hérée undertakes design and execution management missions in complex technical programs. We work either as lead contractor (mandataire) or in co-contracting with specialized engineering firms, depending on the project nature and technical constraints.

Our role: lead studies, coordinate the stakeholders, and guarantee operational realization in compliance with norms, costs, and schedule.

Our interventions include:

• Technical design and coordination with engineering partners
• Direction and monitoring in high-technicality construction sites
• Missions as lead or in co-contracting (shared expertise)
• Complex phasing in occupied environments or sensitive sites
• Project management to secure performance, safety and operational challenges

Our feasibility studies allow investors and owners to have a fast, reliable, and operational analysis before any financial commitment. We identify regulatory, technical, and economic constraints to decide whether a project is feasible or faces insurmountable obstacles.

Sometimes, the greatest added value is showing that a project is not viable under reasonable conditions.
For example, one study in Algrange, France for converting into studios was blocked by strong regulatory burdens (leasing permit, parking, land risk), with prohibitive renovation costs and likely third-party appeals.
Our analysis prevented the investor from losing hundreds of thousands of euros on an unviable project, while offering realistic alternatives (e.g. a coliving project).

Our approach emphasizes reliability and speed, to deliver outputs directly usable for decision or project launch.un projet.

Our studies include:

• Regulatory and urban planning analysis
• Cost and timeline estimations for works
• Risk identification
• Clear recommendations for secure decision-making

Autorizations
Developing an “AT” autorization for a public facility requires perfect mastery of current regulation. Our missions include analyzing the existing building or project, then preparing a dossier compliant with accessibility (PMR) and fire safety requirements. This technical expertise allows owners to obtain the necessary administrative authorization to operate in legal and operational safety.

Full project management missions
Beyond regulatory dossier, we take charge of full design and follow-up of works. Whether renovation, interior layout, or compliance upgrades, we coordinate all stakeholders and ensure integrity of ERP prescriptions until final reception of the building.

Energy performance is now a central stake for all real estate actors, in new builds or existing buildings.

As a design manager or consultant, we collaborate with specialist firms to propose compared quantified scenarios, enabling project owners to make informed decisions.

Our missions include:

• Energy audits and performance analyses for existing buildings
• Research of thermal renovation solutions (insulation, ventilation, heating, hot water production, etc.)
• Integration of renewable energies (solar, agrivoltaics, geothermal…)
• Optimization of technical systems for operational performance