Diane Heirend architecture & urbanisme

What Diane Heirend architecture & urbanisme does

Diane Heirend architecture & urbanisme is a Luxembourg-based boutique architecture and urban planning practice founded in 1995 by Diane Heirend and operated as Diane Heirend architectes sàrl (RCS Luxembourg B109169). The firm provides full-lifecycle design services across residential, educational, cultural, public, and urban planning typologies, with a stated emphasis on contextual harmony and heritage preservation. Its core offering comprises architectural design (conception through realization), urban planning, scenography for theatre, and bespoke furniture and interior design.

The practice operates with a multicultural team of approximately nine architects plus one administrative assistant, drawing on credentials from leading European architecture schools in Paris, Strasbourg, Aachen, Nantes, Mons, Liège, Nancy, Turin, and Gdańsk. Technology stack is conventional: standard architectural design tooling plus Google Analytics and Google Maps on the public website, with no disclosed AI, BIM-platform differentiation, or proprietary software.

Commercially, the firm runs a professional services model on project-based fees, with no publicly disclosed pricing. Revenue is generated through two channels: competitive public tender bidding for government commissions and direct engagement with private clients for residential and bespoke work. Notable government clients include the Administration des Bâtiments Publics, Ville de Luxembourg, Ministère de la Fonction Publique, Fonds pour le Développement du Logement et de l'Habitat, and Administration Communale de Bettembourg. The firm has earned two EU Mies van der Rohe Award nominations (2011 and 2024), the Prix Luxembourgeois d'Architecture 2011, the Bauhärepräis OAI 2012, and a UIA Robert Matthew Prize, alongside international competition entries in Vietnam, Cambodia, Laos, and Germany.

Name

Diane Heirend architecture & urbanisme

Legal name

Diane Heirend architectes sàrl

Website

https://dianeheirend.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

1–10 employees

Short description

Diane Heirend architecture & urbanisme is a Luxembourg boutique architecture and urban planning firm founded in 1995, serving public-sector and private clients across residential, cultural, educational, and heritage restoration projects with a multicultural team of approximately nine architects.

Ownership category

akta.pro rank

Product category

Architecture and Urban Planning Services

NAICS

Architectural Services (54131), Interior Design Services (54141)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Residential Luxury / High-End Home Construction (IMAFABAJ)

Keywords

• Architectural design services
• Urban planning services
• Heritage building restoration
• Residential architecture design
• Public building architecture

Headquarters

HQ city

Luxembourg

HQ country

Luxembourg

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Others

Revenue model

1. Architectural Design Services: Professional architecture and urbanism services for diverse project types including residential, educational, cultural, and public buildings. Revenue generated through project-based fees for design and project management services.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Diane Heirend architecture & urbanisme is a Luxembourg-based architecture and urban planning firm providing professional design services across residential, educational, cultural, and public building typologies, as well as urban planning, theatre scenography, and custom furniture design. The firm delivers projects from initial concept through to realization for both public-sector clients (via competitive tenders) and private clients (via direct engagement).

Product overview

Diane Heirend architecture & urbanisme is an architecture and urban planning firm founded in 1995, operating under Diane Heirend architectes sàrl. The firm offers a unified portfolio of services centered on architectural design (residential, commercial, cultural, educational buildings), urban planning, scenography for theatre productions, and custom furniture design. Notable projects include the Villa Kutter restoration, Tour A/B refurbishment on Kirchberg plateau, Ribbon Houses, Parc Jacquinot redevelopment, and Villa Vauban museum transformation. The firm employs a multicultural team of nine architects plus one administrative assistant, and has received multiple architectural awards including EU Mies Award nominations.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Full-service architectural design for residential, commercial, cultural, educational, and public buildings, covering all project phases from conception to realization.
• Urban Planning Services Urban development and planning services including park redevelopment, social housing projects, and city planning concepts for municipalities and public-sector clients.
• Scenography and Theatre Design Services Stage design and scenography services for theatre productions, including set design, costume design, and lighting for local theatre companies.
• Furniture and Interior Design Services Custom furniture design and interior architecture solutions for private clients and public entities.

Quantifiable outcome

• EU Mies Award nomination - Villa Vauban
• +2 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Partnerships

Two partnerships are on record, tiered minor.

• EPPOminorOthersEnd user for Tour B refurbished building - public buildings administration occupant
• Building Trust InternationalminorStrategic or Co-development PartnerSubmitter for social housing competition in Cambodia (Phnom Penh, 2013)

Scale indicators2 records

Recent moves7 records

Expansion highlights4 records

Emerging players

• Moreau Kusunoki Architectes: Paris-based practice with cultural and museum projects comparable to Diane Heirend's Villa Vauban and Tour A/B work. Similar in scale and typology, with a parallel emphasis on heritage and adaptive reuse.
• Caruso St John: London-based practice known for heritage and cultural projects (Tate Britain, Hotel & Brasserie Gottfried). Comparable in size and in the craft of heritage-led public architecture that defines Diane Heirend's award-winning work.

Direct peers

• Paul Bretz Architectes: Founded by Paul Bretz in Luxembourg, the firm is a direct local peer in cultural, residential, and public architecture. Diane Heirend previously worked there as Responsable de projet, making the two practices closely comparable in size, typology, and client base.
• Arlette Schneiders Architectes: Luxembourg-based architecture firm with a similar portfolio of residential, public, and adaptive-reuse projects. Competes with Diane Heirend on the same public tenders and private commissions.
• Jim Clemes Architectes: Established Luxembourg architecture practice delivering residential, public, and educational projects. Overlaps directly with Diane Heirend on typology and Luxembourg public-tender competition.
• STEINMETZDEMEYER: Luxembourg architecture and urban planning office working on housing, public buildings, and urban projects. Recurring peer in the same local tender ecosystem and a former employer of team members.
• Georges Reuter architectes: Luxembourg-based architecture practice with which Diane Heirend has collaborated on urban planning competitions (e.g., 'Vivre sans voitures'). Direct peer in the local market and on public-tender competitions.
• m3 architectes: Luxembourg-based multidisciplinary architecture firm active in residential, public, and urban planning projects. Comparable team size and project portfolio to Diane Heirend's practice.

Broad incumbents

• David Chipperfield Architects: Internationally recognised practice with a strong heritage restoration and museum portfolio (Neues Museum, Neues Museum Antikensammlung). Highly comparable on heritage restoration specialisation (Villa Vauban, Villa Kutter) but operates at a much larger scale and global footprint.

Regional players

• Bétrix & Consolascio Architekten: Swiss architecture practice where Diane Heirend trained as a stagiaire; operates in a different geography but is highly comparable in scale, design philosophy, and typology range (cultural, residential, public).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/diane-heirend-architectes

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Diane Heirend architecture & urbanisme