Aadd+

What Aadd+ does

Aadd+ (legal name Duboëlle Architecte) is a privately held, founder-owned DPLG-certified architecture firm founded in 2010 by Vincent Duboëlle and headquartered at 16 rue de Verdun, Charenton-le-Pont, France. Operating as an EURL (single-member limited liability company) with 1–10 employees, the firm delivers bioclimatic architectural services across five product modules: new construction and horizontal extension, surélévation (vertical extension using lightweight wood-frame and steel hybrid systems), interior architecture and renovation, condominium (copropriété) energy renovation with MaPrimeRénov' support, and a recently indicated hôtellerie & retails category. Underlying technical competencies include bioclimatic design principles (orientation, thermal mass, solar gain, natural ventilation), ossature bois (wood-frame) construction integrated with masonry, exterior thermal insulation (ITE) under mineral render, and bio-sourced materials (wood fiber insulation, larch/spruce cladding, natural zinc), all aligned with RE2020 compliance and ABF heritage constraints. Since 2010 the firm has completed 250+ projects and obtained 70+ building permits across Paris 12e, Val-de-Marne, Vallée de Chevreuse, Montreuil, and Seine-et-Marne.

The business model is professional-services fee-for-mission across a four-stage project methodology: Étude de Potentiel (feasibility study from €800 TTC), Esquisse (sketch design from €1,400 TTC), Avant-Projet & Permis de Construire (design and permit from €3,000 TTC), and Études de Projet & Chantier (full construction management starting from 12% of construction costs). Architect fees in full mission typically represent 8–14% of construction costs. Go-to-market is direct sales-led, with clients acquired through the firm's Wix-based website, contact form, phone, and email, supplemented by organic social channels (Instagram, LinkedIn, Pinterest, Houzz Pro, Facebook), Google Business profile (4.6/5, 37 reviews), and earned media (Forbes, Maison & Architecture, Homify). Customer segments are primarily individual homeowners and condominium associations in Île-de-France, with secondary exposure to property developers and investors; the firm is bilingual (English, Spanish) to serve international clients. The firm has no external investors, parent company, or disclosed subsidiaries.

Name

Aadd+

Legal name

Duboëlle Architecte

Website

https://aaddarchitecte.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

1–10 employees

Short description

Aadd+ (Duboëlle Architecte) is a DPLG-certified architecture firm in Île-de-France that designs bioclimatic residential and condominium projects including surélévations, extensions, and energy renovations for individual homeowners, copropriétés, and property developers across the Paris region.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Architectural Services (54131)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

ADU Design, Architecture & Engineering (HSAPAMAF), Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Residential Modular & Prefabricated Home Construction (IMAFABAF)

Keywords

• Bioclimatic architecture services
• Vertical extension design
• Wood frame construction
• Residential renovation planning
• Condominium energy retrofit

Headquarters

HQ city

Charenton-le-pont

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Architectural Design Services: Tiered professional services including: Étude de Potentiel (feasibility study from €800 TTC), Esquisse (architectural sketch from €1,400 TTC for extensions), APD/PC (design and permit from €3,000 TTC), and full project studies/construction management (starting from 12% of construction costs). Architect fees represent 8-14% of construction costs for full mission.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Aadd+ (Duboëlle Architecte) is a DPLG-certified architecture firm that designs and manages residential and commercial architecture projects in Île-de-France, specializing in new construction, horizontal extensions, vertical extensions (surélévations) using lightweight wood-frame systems, interior renovations, and condominium (copropriété) energy retrofits. Services span a four-phase methodology—feasibility study (Étude de Potentiel), sketch design (Esquisse), permit and design development (APD/PC), and full construction management (Études & Chantier)—with bioclimatic principles and bio-sourced materials integrated from the initial sketch phase.

Product overview

Aadd+ (Duboëlle Architecte) is a DPLG-certified architecture firm offering a comprehensive suite of architectural services organized as a four-stage project methodology: Feasibility Study (Étude de Potentiel), Sketch Design (Esquisse), Permit & Design Development (Avant-Projet & PC), and Construction Management (Études & Chantier). The core offering spans five primary service modules: Construction & Extension (ossature bois wood-frame building), Surélévation (vertical building extensions using lightweight wood-steel hybrid structures), Interior Architecture & Renovation, Copropriété (condominium management), and full Design & Execution management. The firm operates exclusively in Île-de-France with specialization in bioclimatic design, RE2020 compliance, and heritage-sensitive contexts.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction & Extension Design and delivery of new constructions and horizontal extensions for individual houses and buildings, specializing in wood-frame (ossature bois) construction integrated with existing masonry structures, targeted at individual homeowners in Île-de-France.
• Surélévation (Vertical Extension) Structural raising of existing buildings to add habitable floors using lightweight wood-frame and steel hybrid systems designed to minimize load on existing foundations, targeted at homeowners of houses and townhouses in Île-de-France.
• Interior Architecture & Renovation Complete interior redesign and renovation services including spatial reorganization, energy performance improvements, bio-sourced material specification, and full site management through delivery, targeted at individual homeowners and apartment owners in Île-de-France.
• Copropriété (Condominium) Services Architectural services for condominiums including common area renovation, energy efficiency upgrades, MaPrimeRénov' Copropriété dossier preparation, DTG/PPPT studies, and project coordination through general assemblies, targeted at syndics and condo councils in Île-de-France.
• Étude de Potentiel (Feasibility Study) Initial diagnostic assessment analyzing building rights under local PLU regulations, existing structure condition, foundation capacity, and neighboring constraints, producing a realistic budget envelope from €800 TTC. Targeted at property owners evaluating project feasibility without commitment to a full mission.
• Esquisse (Sketch Design) Design development translating feasibility conclusions into buildable project plans with 3D modeling, municipal and ABF pre-consultation, and preliminary acceptability testing from €1,400 TTC for extensions and €1,500 TTC for surélévations.
• Avant-Projet & Permis de Construire (Design & Permit) Detailed design phase and building permit preparation including architectural statement, regulatory drawings, photorealistic renderings, permit filing, and instruction follow-through starting from €3,000 TTC. Targeted at clients ready to file for building permits.
• Études de Projet & Chantier (Project Studies & Construction Management) Full construction phase management including engineering coordination (BET), contractor tendering, works contract assistance, site supervision (VISA, DET), financial control, and final reception (OPR, AOR), starting from 12% of construction costs. Targeted at clients undertaking full building execution.

Quantifiable outcome

• Energy class jump from G to B (5 classes improvement) for Maisons-Alfort condominium through thermal envelope renovation
• +2 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Encore Heureux: Paris-based architecture practice well-known for sustainable, low-carbon, and bio-sourced construction. Comparable to Aadd+ in orientation toward bioclimatic principles, urban infill, and adaptive reuse of existing housing stock.
• Architectes Pour Tous: French architecture firm explicitly linked in Aadd+'s own website as a partner directory. Operates a similar small-scale DPLG-certified residential architecture model serving individual homeowners in France, with comparable project methodologies and tiered service offerings.
• Lemoal & Lemoal Architectes: French architecture firm focused on sustainable and energy-efficient residential design, including extensions and renovations. Competes in the same bioclimatic niche and serves similar Île-de-France and provincial clientele.
• Karawitz Architecture: Paris-based architecture firm specializing in bioclimatic design, wood construction, and sustainable materials — directly overlapping with Aadd+'s core competency in ossature bois, bio-sourced insulation, and energy-efficient residential architecture. A near-twin niche player.
• NOMADE Architectes: French architecture firm with parallel small/mid practice profile, working on residential extensions, renovations, and bioclimatic projects. Comparable in service mix, project scale, and target clientele.
• Tectone Architecture: French architecture practice with overlapping residential and small-scale construction project portfolio. Comparable in size, methodology, and customer base to Aadd+'s homeowner-focused model.

Broad incumbents

• Wilmotte & Associés: Established French architecture firm with mixed-use, residential, and cultural projects. Comparable professional services model but at significantly larger scale and project complexity than Aadd+'s boutique residential focus.
• Architecture-Studio: One of the largest French architecture practices, with a global portfolio. Competes in the same French architectural services category as Aadd+ but serves a fundamentally different scale of project (urban, institutional, international).
• Valode & Pistre: Major French architecture firm with a broad portfolio spanning cultural, commercial, and residential projects. Operates in the same French architectural services market as Aadd+ but at far greater scale and on larger project types.
• Dominique Perrault Architecture: Globally recognized French architecture firm with high-profile cultural and commercial projects. Overlaps with Aadd+ in French architectural services category but operates at vastly different scale and project type.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/architecte.duboelle
• LinkedInlinkedin.com/company/aadd-
• Instagraminstagram.com/duboellearchitecte
• Pinterestpinterest.com/vduboelle

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Aadd+