Complexity mastered.

Context

A city-centre retail complex in Bordeaux requiring complete restructuring to restore its commercial appeal.

Constraints identified

Works on an occupied site with ongoing retail operations, heavy concrete structure, multi-tenant coordination, complex two-phase sequencing.

IDNéa's role

In-depth structural diagnostic, operational phasing design, on-site works management, commercial stakeholder coordination.

Key decision

Opting for a two-phase approach to maintain commercial operations throughout construction, rather than a faster but economically destructive full closure.

Context

Heavy rehabilitation of a landmark office building on Quai des Chartrons in Bordeaux, with complex phasing for two distinct tenants on an occupied site.

Constraints identified

Works on an occupied site, coexistence of two entities (OMNES Education & Auctioneers), flow management and business continuity, multi-trade technical coordination, high architectural standards.

IDNéa's role

Strategic diagnostic of existing fabric, works phasing design, technical and economic arbitrage, design and execution management, investment decision support.

Key decision

Implementing precise phasing to ensure business continuity while fundamentally upgrading the spaces.

Context

A rehabilitation project integrating a central atrium and a listed timber roof structure, requiring careful management of fire-safety and heritage constraints.

Constraints identified

No co-ownership structure, specific fire-safety constraints related to the atrium, listed timber roof, complex technical coordination.

IDNéa's role

Comprehensive existing-condition diagnostic, identification of value drivers, transformation programme structuring, operational management.

Key decision

Concentrating investment on high-impact value drivers rather than exhaustive renovation, preserving sound structural elements.

Context

Fine renovation of an existing space, with preservation of period features.

Constraints identified

Conservation of heritage elements, transformation of former reception areas and staff quarters, invisible air-conditioning integration, discreet acoustic treatment.

IDNéa's role

Transformation into modern, functional offices while respecting the identity of the place.

Key decision

Controlled transformation of existing volumes without excessive demolition, preserving the building's constructive assets.

Context

Rehabilitation of a city-centre building, integrating space restructuring and complete requalification of works. A project requiring fine understanding of interactions between structure, volumes and uses.

Constraints identified

Existing building with strong identity, technical constraints related to the existing fabric, multiple stakeholder coordination, balancing conservation and transformation, regulatory requirements.

IDNéa's role

Strategic building diagnostic, comprehensive reading of works, transformation scenario definition, operational structuring, technical decision support.

Key decision

Preserving and revealing the building's intrinsic qualities while adapting it to contemporary uses.

Context

Heavy rehabilitation with extension of an office asset on the Beaugrenelle slab in Paris 15th, in a complex structural and contextual environment.

Constraints identified

Demanding structural context, strong urban constraints, technical optimisation in a highly visible architectural environment, heavy coordination.

IDNéa's role

Strategic diagnostic, identification of value drivers, transformation programme design focused on high-impact items.

Key decision

Favouring targeted transformation of high-visibility spaces and critical technical performance, rather than prohibitively expensive global renovation.

Context

Land rehabilitation: two former office buildings in the Mérignac Aéroparc zone transformed into a 160-room Hampton by Hilton hotel, a 3,500 sqm office building and a 100-space car park. An ambitious project designed with a modern, sustainable vision integrating contemporary architecture, comfort, natural light and urban coherence.

Constraints identified

Change of use, compliance with international Hilton standards, hotel and public building regulations, existing structure to be adapted, coordination of three distinct programmes on a single site.

IDNéa's role

Feasibility study, technical and economic project structuring, transformation management, investor-operator interface.

Key decision

Retaining the existing load-bearing structure and adapting the hotel grid to the building geometry rather than restructuring the frame, saving 30% on structural costs.