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Multidisciplinary engineering firm — Martinique & international

Designing in constrained settings, without compromising on compliance.

S.O.A designs and manages your building and site development projects: structural & civil engineering, roads & infrastructure, environment & impact mitigation, mechanical & HVAC systems. French Eurocodes and national annexes, seismic zone 5, cyclonic risk, RTAA DOM: the regulatory framework is our starting point, not something we bolt on at the end of a project.

  • 01Foundations & slab
  • 02Structure & civil engineering
  • 03Envelope & finishing trades
  • 04Mechanical, HVAC & roofing
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Response within 48 business hours · First 30-minute conversation with no commitment · FR · EN · ES · PT

4 disciplinesStructural · Infrastructure · Environment · Mechanical
4 languagesFrançais · English · Español · Português
Seismic zone 5Eurocode 8 — French Antilles
ISO 9001Process-based logic applied to deliverables

01 — Our expertise

Four technical disciplines, a single chain of accountability.

Discipline 01

Structural & Civil Engineering

Calculation notes, load path analysis and structural design in seismic zone 5, with cyclonic risk built into the design from the outset.

Eurocode 2Eurocode 3EC8 zone 5DTU 13.x

Discipline 02

Roads & Infrastructure

Roads, drainage, stormwater management and accessibility, from the site plan through to the tender file.

CEREMAFascicule 70Loi sur l'eauPMR

Discipline 03

Environment & Impact Mitigation

Avoid-reduce-compensate sequence, regulatory files and material traceability during demolition.

Séquence ERCIOTAICPEPEMD

Discipline 04

Mechanical, HVAC & Plumbing

Thermal, acoustic and ventilation requirements applicable overseas to new residential buildings, smoke extraction and fire safety systems.

RTAA DOMDTU 60/61DésenfumageSSI

02 — Our services

Six ways to take part in a project.

01

Feasibility & programming

Purpose, scope, assumptions and regulatory constraints agreed before any commitment to the project.

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02

Project management

Design and works supervision, from preliminary studies through to handover.

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03

Owner's engineer & project management assistance

Assisting the client in defining requirements, procurement and oversight.

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04

Tender documents & bid analysis

Drafting the technical documents of the tender file and comparative analysis of bids.

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05

Works coordination & scheduling

Scheduling, oversight and coordination of contractors over the course of the works.

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06

Diagnostic & audit

Technical and regulatory assessment of an existing structure, with findings clearly stated.

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03 — Territories

One regulatory framework, three territories of practice.

MartiniqueHead office — Fort-de-France. Working across the whole territory.
GuadeloupeBuilding and site development, under the same seismic and cyclonic framework.
French GuianaSocial housing, infrastructure and sites requiring remediation — experience gained on the ground.
Caribbean & internationalOne-off projects and partnerships, conducted in EN, ES or PT.

Regulatory framework applied

  • Eurocodes + French national annexes the default calculation standard for all our deliverables.
  • Eurocode 8 — seismic zone Martinique and Guadeloupe; zone 3 for French Guiana.
  • Eurocode 1-1-4 — wind action cyclonic risk built into the design from the outset.
  • RTAA DOM thermal, acoustic and ventilation requirements applicable overseas to new residential buildings, rather than France's RE2020 standard.
  • French public procurement code CCP and CCAG-PI for projects under public contract.

Outside French territory, the applicable framework is agreed with the client during scoping and recorded in the project file.

05 — Method

Four stages, each traceable to its source.

Our organization follows an ISO 9001 process-based logic: every regulatory statement is traced to its source, every missing piece of data is flagged rather than assumed.

01

Scoping

Purpose, scope, assumptions and missing data agreed in writing before any work begins.

02

Production

Calculation notes and versioned deliverables, every regulatory statement traced to its source.

03

Internal review

Cross-checked by a second engineer, drawing on our site-experience feedback.

04

Delivery & follow-up

Partial conclusions by section, actionable recommendations, findings clearly stated.

Let's talk about your project.

A first thirty-minute conversation is enough to scope the need, the extent of the project and the timeline.

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Our commitments

  • Acknowledgement of receipt within 48 business hours
  • Scope of service and deliverables in writing before signature
  • Daily rates inclusive of all expenses, with no additional fees
[ Photograph to be provided ]

06 — News

Biodiversity — we're talking about it… and acting on it

Conference held at the Institut Martiniquais du Sport, Fort-de-France.

January 29, 2026 · Fort-de-France, Martinique

07 — Project sequence

From the land parcel to handover.

Phase 01

Site & feasibility

Site analysis, regulatory and land-ownership constraints, costed scenarios. The base map is cross-checked against zoning and hazard data before any assumption is made.

Géorisques — PPRNGéoportail de l'urbanismeAPI Carto IGN

Deliverable · Feasibility note with compared scenarios

Phase 02

Foundations

Use of the geotechnical report, choice of foundation system, load path analysis. The G2 assessment governs commitment: without it, the assumption is flagged, not made.

Eurocode 7DTU 13.1 / 13.2NF P 94-500 (G2)

Deliverable · Assumptions note and preliminary sizing

Phase 03

Seismic bracing

Modal spectral analysis, connection ductility, plan regularity. In zone 5, these decisions are made at sketch design, not at the detailed design stage.

Eurocode 8 — zone 5Eurocode 2Eurocode 3

Deliverable · Structural calculation note and formwork drawings

Phase 04

Envelope & cyclonic risk

Wind action, pressure on openings, performance of roofing and edges. Summer comfort addressed through bioclimatic design before any reliance on air conditioning.

Eurocode 1-1-4RTAA DOMRE2020 (métropole)

Deliverable · Thermal report and wind note

Phase 05

Infrastructure, utilities & impact mitigation

Wastewater and stormwater systems sized to local rainfall and the imposed discharge rate. Avoidance first, reduction next, compensation only as a last resort.

Fascicule 70Loi sur l'eau — IOTASéquence ERC

Deliverable · Profiles, hydraulic note and mitigation section

Phase 06

Works coordination & closing out findings

Scheduling, coordination of work packages, management of interfaces between design, technical control and safety coordination. Findings tracked through to closure and through the warranty period.

CCAG-PIOPRGPA

Deliverable · Master schedule, handover report, final discharge