Oïkos GPI

Service

Engineering office

Engineering office across Switzerland: coordination of design and permits, project modelled before construction, up-to-date financial plan and SIA standards checks.

What it covers
  • Coordination of the design work: architecture, engineering and execution brought together under a single point of management.
  • The project modelled digitally before it is built (Attic+), through 3D graphic input or from IFC models.
  • Specifications, measurements and quantities drawn up from this model, followed by costed estimates using our database.
  • Design work and permit, with checks on compliance with SIA standards, and a financial plan updated at every stage.
Who it is for

An owner or developer who wants a single point of contact for the design work. A general or total contractor structuring a project. An architect who wants the figures in parallel. A public authority that needs to frame its design work.

Where this fits in our method

The phases concerned.

  1. STAGE 1Feasibility
  2. STAGE 2Financial plan
  3. STAGE 3Design and permit
The phases explained
PHASE1

Feasibility

Before any commitment, we establish what is possible and what it costs. The potential of the site is analysed and project hypotheses are tested against your economic objectives.

  • The potential of the site and the constraints to be taken into account
  • A first cost estimate and a target cost
  • Costed options: renovate, build, sell

Tool: Attic+Related service: Feasibility and investment strategy →

PHASE2

Financial plan

Once the direction has been chosen, the budget is structured by CFC (Swiss construction cost classification) and kept up to date at every stage of the project.

  • All CFC items costed using our own database
  • A financial plan updated at every stage
  • Options weighed up, with their financial impact

Tool: Attic+ and SAPRelated service: Construction economics →

PHASE3

Design and permit

The design work is coordinated between architecture, engineering and execution, under a single point of management, up to the permit. Cost is monitored alongside the design.

  • Coordinated design work under a single point of management
  • Compliance with SIA standards checked in parallel
  • The budget checked against the project at every change

Tool: Attic+Related service: Engineering office →

See the five phases of the method →

Frequently asked questions
Do you charge commissions to contractors?

No. We charge only our fees, which correspond to the time you would otherwise have to devote to it yourself, with the trade expertise and the tools that go with it. With no commission, we have no interest in favouring one contractor over another.

Who chooses the contractors?

The client. Following our expert assessment, the client decides which subcontractors to proceed with. Contracts and payments remain directly between the client and the contractors.

Does a study or advice commit me to entrusting you with construction management?

No. A study or advice is never conditional on a construction management mandate. Each assignment has a scope, deliverables and fees defined by offer.

What does “open-book execution” mean?

Prices, tenders, contracts and decisions remain visible to the client, from the first study to handover.

Further reading

Related resources.

Next service: AMO: owner’s representation →

Present your project to us.

A first conversation, without obligation: the address or plot, your objective, an indicative budget.