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Mode of operation

Type of contract

Contractual structure

Remuneration

Who bears the risk?

When to use it?

Which operating mode is best suited to your situation?

Mode of operation

At Solido, we understand that every client and every project is unique. That's why we offer four flexible operating modes, tailored to your needs. Whether you're just starting out or ready to get started, we have the support structure that's right for you.

under construction - Solido

Flat rate

A fixed-price contract is an agreement in which the contractor agrees to complete all work for a fixed price. This method is preferred when the scope of work is well defined and the plans are complete.

Benefits

  • Fixed and predictable price for the customer

  • Simple management and less administrative follow-up

  • Ideal for projects without major modifications

When to use it
Suitable for a client who already has detailed plans and wants a clear and stable budget. Typically used for renovations, expansions, or well-defined projects.

Cost plus price

In this mode, the client reimburses the actual costs of materials, labor, and subcontractors, plus a fixed fee for the contractor. It allows for great flexibility on costs.

Benefits

  • Flexibility to integrate changes during the project

  • Transparency on real costs

  • Encourages collaboration between client and contractor

When to use it
Ideal for projects where the scope is not fully defined or may change, or where the client wants management and execution by the same contractor. Also suitable for complex or large-scale projects.

Construction management

The contractor acts solely as a project manager , overseeing the work and coordinating subcontractors, without carrying out the work himself. This mode of operation can be offered in consultation mode, whether in the pre-project phase or at any other point in your construction project.

Benefits

  • Allows professional and centralized project management

  • Flexibility in organization and deadlines

  • Facilitates coordination between all stakeholders

When to use it
Perfect for a client looking for more consultation or a partner to monitor their subcontractors , while maintaining control over execution. Ideal for complex or multi-site projects.

Design-build

This method combines design and construction under a single contract. The contractor is responsible for both design and execution , which promotes coordination and reduces lead times. In this context, we work with guaranteed maximum price budgets , providing transparency and security to the client.

Benefits

  • Reduction of production times

  • Better coordination between design and construction

  • Single responsibility, simplifying project management

When to use it
Suitable for a client who does not yet have complete plans and wishes to entrust the design and construction to the same partner, while having maximum budget security.

Fixed Price Contract

Fixed price / flat rate

A single contract between the owner and the general contractor

Total price fixed in advance (including profit and overhead costs)

General contractor (unless approved changes)

When the plans and specifications are complete and the owner wants a firm price

Cost-plus contract

Cost + fees

A single contract between the owner and the general contractor

Actual costs + fixed costs or profit percentage

Owner (because no guaranteed price)

When you want to start quickly or the plans are not finalized

Construction management

Construction Management (Services Only)

Contract between owner and construction manager, subcontractors contract directly with owner

Fixed fee or percentage for management services

Owner

When the owner wants to maintain control of contracts and have a manager as an advisor

Design - Construction

Construction management for a turnkey project (design + construction)

A single contract between the owner and the construction manager who is also responsible for design and construction

Fixed price agreed for the whole (including design)

General contractor

When you want a single point of contact responsible for design and production, with a fixed price

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