TRIO Architecture

What TRIO Architecture does

TRIO Architecture sprl is a Brussels-based private architecture firm (société privée à responsabilité limitée) operating since 1988, after a preceding de facto association founded in 1975. The firm employs approximately 12 architects and civil engineer-architects (reportedly 17 total staff) and provides comprehensive architecture services spanning new construction, renovation, transformation, and heritage restoration. It differentiates through two principal specializations: (1) energy-efficient building design certified to passive, very low-energy, Batex (exemplary building), and Renolab B standards, with documented projects such as Toiton achieving 14 kWh/m²/year; and (2) heritage/patrimonial restoration of classified monuments including 17th-century fortified refuges, castles, Art Nouveau houses, and ecclesiastical buildings.

The firm's service portfolio covers four primary verticals: collective and individual residential housing, tertiary (commercial, educational, public administration, museum) buildings, heritage/patrimony restoration, and miscellaneous specialized projects (sports facilities, swimming pools, tourism sites). Service offerings integrate design, project management, construction supervision, and custom furniture design. Methodology emphasizes direct client communication from conception through delivery, with flexible team structures adapted to each project. Technology and construction techniques emphasized include natural materials, ecological insulation (cellulose, wood structure), rainwater recovery, geothermal heating, and solar panels.

TRIO Architecture generates revenue exclusively through professional service fees on a project basis, with no disclosed pricing standardization. Go-to-market combines direct client relationships for private residential and commercial work with competitive public procurement bidding for government and institutional contracts. Public contract values disclosed range from approximately €450K HTVA (Toiton) to €7M HTVA (CPAS Berchem-Sainte-Agathe). The client base spans public entities (CPAS, UCLouvain, Sibelga, CAAMI, Musée d'Ixelles, BELvue, Domaine des Grottes de Han), private developers (IMMOBEL/CIG, Home Invest Belgium), and individual homeowners. Operations are primarily in Belgium (Brussels, Wallonia, Flanders) with selective project execution in France (Burgundy, Languedoc). The firm owns no subsidiaries, has not raised external funding, and operates as a partnership among co-founders Jean-Jacques Boucau, Xavier de Pierpont, and associates Benoît Errembault and Sébastien Petit.

Name

TRIO Architecture

Legal name

TRIO Architecture sprl

Website

https://trioarchitecture.be

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

11–50 employees

Short description

TRIO Architecture is a Brussels-based architecture firm founded in 1988, employing approximately 12 architects. It delivers new construction, renovation, energy-efficient design, and heritage restoration services for public institutions, private developers, and individual clients across Belgium and France.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Interior Design Services (54141)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Architectural Reconfiguration & Structural Alterations (HSAPAEAB), Interior Design Services (BPAHAKAB)

Keywords

• Architectural design services
• Heritage building restoration
• Energy-efficient building design
• Passive house construction
• Residential renovation services

Headquarters

HQ city

Brussels

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Architecture and Design Services: Full architecture services for construction, renovation, transformation and restoration projects. Revenue generated through professional service fees for design, project management, and construction supervision missions.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

TRIO Architecture sprl is a Brussels-based architecture firm providing full-scope architectural services for new construction, renovation, transformation, and restoration of residential, commercial, institutional, and heritage buildings across Belgium and France. The firm specializes in energy-efficient building design certified to passive, very low-energy, Batex, and Renolab B standards, alongside restoration of classified heritage monuments. Services span design, project management, and construction supervision delivered by a team of approximately 12 architects and civil engineer-architects.

Product overview

TRIO Architecture sprl is a Brussels-based architecture firm founded in 1988 offering comprehensive architectural services for construction, renovation, transformation, and restoration projects. The firm specializes in energy-efficient building design (passive, very low-energy, and exemplary building standards) and heritage restoration. Services span residential (individual and collective housing), tertiary (commercial, institutional, educational, office), and heritage/patrimony projects throughout Belgium and France. The firm comprises approximately twelve architects and civil engineer-architects working with a project-based methodology.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services - New Construction Design and construction supervision of new residential (individual and collective), tertiary, and heritage buildings throughout Belgium and France.
• Architecture Services - Renovation and Transformation Renovation, transformation, and extension of existing buildings including heavy renovation, energy optimization, and adaptive reuse projects for residential, commercial, institutional, and public-sector clients.
• Heritage and Patrimonial Restoration Restoration and reaffectation of classified and heritage buildings including castles, fortified refuges, churches, and 17th-century buildings with careful attention to traditional craftsmanship and authentic materials.
• Energy-Efficient Building Design Specialization in passive, very low-energy, low-energy, and Batex (exemplary building) certified construction and renovation projects, integrating natural materials, rainwater recovery, ecological insulation, and renewable energy systems.

Quantifiable outcome

• Multiple projects certified very low energy, passive, Batex (exemplary buildings), and Renolab B winner
• +2 more outcomes

Named customers17 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered minor and core.

• JNC internationalminorStrategic or Co-development PartnerAssociation with JNC international for Hippodrome project - heavy renovation of two master houses into single-family home and two apartments, 1.100m² in Brussels
• Archi-InminorStrategic or Co-development PartnerCollaboration with Archi-In for Coquelicot project - extension of classic house, 40m² in Sterrebeek
• TijdsbeeldminorStrategic or Co-development PartnerCollaboration with Tijdsbeeld for BELvue museum 2017 renovation - new muséographie
• Pièce MontéeminorStrategic or Co-development PartnerCollaboration with Pièce Montée for BELvue museum 2017 renovation - new muséographie
• Rénovassistance ASBLminorImplementation/ SI/ Consulting PartnerChambery project - division of former presbytery into social housing units, completed 2013
• IMMOBEL sacoreChannel Partner/ Reseller/ DistributorSitelles project - major residential development of 32 and 28 apartments plus 67 houses, 30.950m², 30M€ HTVA, completed 2014
• CIG sacoreChannel Partner/ Reseller/ DistributorSitelles project - major residential development partner for 32 and 28 apartments plus 67 houses, 30.950m²
• Home Invest BelgiumcoreChannel Partner/ Reseller/ DistributorTrône project - demolition and reconstruction of 14 apartments, 2.800m², 2.6M€ HTVA
• Association momentanée privéeminorChannel Partner/ Reseller/ DistributorRoosendael project - construction of 21 apartments and 22 parking spaces, 3.060m²

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/TrioArchitecture77
• LinkedInlinkedin.com/company/trio-architecture
• Instagraminstagram.com/trioarchitecture77

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TRIO Architecture