What Interconstruction does

Interconstruction is a French real estate developer (promoteur-constructeur) founded in 1960 and headquartered in Boulogne-Billancourt, focused on residential and mixed-use property development across the Île-de-France region. The company builds and sells houses, apartments, offices, and retail units, with a cumulative track record of more than 20,000 homes delivered across 230+ named residences such as Hameau Gabrielle, 30 MOZART, and Le Patterson. It operates across 6+ departments of Greater Paris and is structured as a Société par Actions Simplifiée (SAS), employing between 11 and 50 people.

The company's commercial model is built on VEFA (Vente en l'État Futur d'Achèvement) off-plan property sales, supplemented by a Bail Réel Solidaire (BRS) affordable-housing line in partnership with OFS des Yvelines, which targets first-time buyers and middle-income households. Since 2020, Interconstruction has operated as a subsidiary of Belgian-based Eaglestone Group, which provides capital backing and group-level integration. Beyond core development, the company maintains an endowment fund (Fonds de Dotation Interconstruction, created 2019) and cultural programs including the "1 Immeuble, 1 Œuvre" charter (signed 2021) and shared library installations (introduced 2018).

There is no evidence in the input of proprietary technology platforms, AI/ML capabilities, or data-driven product differentiation; the company's differentiation rests on brand history, cultural positioning, and Île-de-France distribution density rather than on a technology stack. Customer relationships are B2C and project-based, with no disclosed enterprise anchor customers or recurring SaaS-style revenue.

Name

Interconstruction

Legal name

SAS INTERCONSTRUCTION

Website

https://interconstruction.fr

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

11–50 employees

Short description

Interconstruction is a French residential and mixed-use real estate developer (promoteur-constructeur) founded in 1960, headquartered in Boulogne-Billancourt, delivering VEFA off-plan homes and BRS affordable housing across the Île-de-France region as a subsidiary of Eaglestone Group since 2020.

Ownership category

akta.pro rank

Product category

Residential Real Estate Development

NAICS

New Housing For-Sale Builders (236117), Residential Building Construction (2361), Commercial and Institutional Building Construction (236220)

akta.pro primary industry

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)

Keywords

• Residential real estate development
• New construction housing
• Off-plan property sales
• Apartment development
• Property developer-constructor

Headquarters

HQ city

Boulogne-billancourt

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. New-Build Property Sales (VEFA): Interconstruction generates revenue through the sale of newly constructed residential properties (apartments, duplexes, studios to 5+ rooms) across Île-de-France. Sales are conducted off-plan (Vente en État Futur d'Achèvement - VEFA), with payment structured according to construction progress milestones. Properties are sold directly to end buyers (primary residence purchasers and investors) at prices ranging from approximately €230,000 to over €400,000 depending on location and size.
2. Bail Réel Solidaire (BRS) Property Sales: Through partnership with OFS des Yvelines, Interconstruction sells properties under the BRS scheme, allowing buyers to purchase housing at prices reduced by up to 40% compared to market rates by separating land ownership from building ownership. This creates an alternative revenue stream targeting middle-income households eligible for subsidized housing programs.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Interconstruction is a real estate developer-constructor (promoteur-constructeur) that builds and sells new-build residential properties in the Île-de-France region of France. The company constructs apartments ranging from studios to 5-room duplexes and sells them off-plan (VEFA — Vente en État Futur d'Achèvement), with payment tied to construction progress. It also operates specialized programs such as Bail Réel Solidaire (BRS) affordable housing through OFS des Yvelines and supports furnished rental (LMNP) investments.

Product overview

Interconstruction is a promoter-developer (promoteur-constructeur) operating in Île-de-France since 1960, now part of the Eaglestone Group. The company offers a portfolio of residential products including new-build apartments across multiple departments (78, 92, 93, 95, 77, 91), ranging from studios to 5-room duplexes. Named residence products include Hameau Gabrielle, 30 MOZART, Le Patterson, Les Terrasses de l'Hôtel de Ville, Le Fort, Cadence, Le Georges, and Résidence Sisley. Supporting tools include financial simulators (borrowing capacity, old vs. new comparison, energy), while the company also markets specialized programs like Bail Réel Solidaire (BRS), VEFA (off-plan), and LMNP (furnished rental). As of 2024, Interconstruction has delivered 230+ residences and 20,000+ housing units.

Differentiator

Problem solved

Functional benefit

Brands

• Fonds de Dotation Interconstruction: Fonds de dotation soutenant des projets citoyens dans l'art, l'environnement, le sport et la littérature en Île-de-France.

Products and services

• Hameau Gabrielle New residential residence in Saint-Cloud (92) offering apartments from studio to 5-room duplexes starting at 294,000 € with 20% VAT and notary fees offered, targeted at primary residence buyers and investors.
• 30 MOZART New residential address in Clichy-la-Garenne (Hauts-de-Seine, 92) with notary fees offered, apartments starting from 265,100 €, targeting first-time buyers and investors.
• Le Patterson New residence in Massy (Essonne, 91) with apartments starting from 230,000 €, suitable for first-time buyers and primary residence purchasers.
• Les Terrasses de l'Hôtel de Ville 30 apartments from studio to 5-room duplexes in Conflans-Sainte-Honorine (Yvelines, 78), located 400m from the train station, available via Bail Réel Solidaire (BRS) with notary fees offered and 1 year of credit offered, targeting middle-income households.
• Le Fort New residence in Aubervilliers (Seine-Saint-Denis, 93) eligible for reduced 5.5% VAT in ANRU zone, targeting students and young professionals seeking affordable urban housing.
• Cadence New residence in Drancy (Seine-Saint-Denis, 93) with accessible pricing in the heart of a transforming commune, near the future line 7 metro extension.
• Le Georges New residence in Bussy-Saint-Georges (Seine-et-Marne, 77) with apartments from studio to 4-room duplex starting at 230,000 €, located near Disneyland Paris and Val d'Europe.
• Résidence Sisley New residence in Pontoise (Val-d'Oise, 95) in the eco-quartier Bossut, featuring brick and plaster facade architecture, smart home automation, and apartments from 2 to 5 rooms with duplex options, delivery expected 2027.
• Virtuo New residence in Bagneux (Hauts-de-Seine, 92) part of Interconstruction's residential portfolio.
• Le 57 République New residence in Chatillon (Hauts-de-Seine, 92) part of Interconstruction's residential portfolio.
• Nouvelle Vague New residence in Le Plessis-Robinson (Hauts-de-Seine, 92) part of Interconstruction's residential portfolio.
• L'Envol New residence in Voisins-le-Bretonneux (Yvelines, 78) part of Interconstruction's residential portfolio.
• Les Ateliers de Poissy New residence in Poissy (Yvelines, 78) part of Interconstruction's residential portfolio.

Quantifiable outcome

• Up to 40% price reduction through BRS (Bail Réel Solidaire) program compared to market rates
• +3 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• OFS des Yvelines (Organisme de Foncier Solidaire des Yvelines)coreStrategic or Co-development PartnerOFS des Yvelines is the land management organization responsible for the Bail Réel Solidaire (BRS) program in the Yvelines department. It retains land ownership while Interconstruction sells the buildings. The partnership enables properties to be sold at up to 40% below market rates, targeting middle-income households eligible under PSLA income thresholds.

Scale indicators7 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Icade: French listed real estate group covering residential, commercial, and healthcare property. Its residential promotion arm overlaps with Interconstruction in Île-de-France VEFA while operating a broader portfolio that includes commercial and healthcare assets.

Direct peers

• Bouygues Immobilier: Real estate arm of Bouygues Group, one of the major French residential developers offering new-build apartments, BRS, and student residences across Île-de-France. Competes for the same buyer segments with greater capital backing.
• Eiffage Immobilier: Real estate arm of Eiffage Construction, developing residential programs including VEFA, BRS, and serviced residences across France, with a meaningful Île-de-France footprint comparable to Interconstruction.
• Nexity: France's largest residential property developer with a national VEFA platform and active presence across Île-de-France. Competes head-to-head with Interconstruction on new-build apartment sales, BRS, and institutional programs.
• Les Nouveaux Constructeurs: Listed French mid-market residential developer specializing in new-build housing across Île-de-France and other major French metros. Closely comparable on size, product mix, and customer segments.
• Groupe Pichet: Private French property developer and constructor with strong Île-de-France and Greater Paris presence. Operates a similar integrated developer-constructor model covering apartments, houses, and serviced residences.
• BPD Marignan: French residential developer owned by Elithis, focused on sustainable new-build housing with concentrated Île-de-France operations. Comparable on VEFA model, BRS offerings, and energy-efficient (RE2020) positioning.
• Altarea-Cogedim: Listed French mixed-use real estate group with a sizable residential arm (Cogedim) selling new-build housing in Île-de-France. Directly comparable on VEFA, BRS, and investor-targeted products.
• Kaufman & Broad: French listed developer focused on new-build housing (individual houses, apartments, managed residences). Operates a comparable VEFA sales model across Île-de-France and competes for similar first-time-buyer and investor segments.
• Vinci Immobilier: Real estate subsidiary of Vinci, a major French developer active in residential VEFA, serviced residences, and BRS in Île-de-France. Comparable business model and target customers with materially greater scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/interconstruction.fr
• Instagraminstagram.com/fondsdedotationinter
• Xx.com/groupe_itc
• LinkedInlinkedin.com/company/groupe-interconstruction

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 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 Interconstruction