KORENN IMMOBILIER

What KORENN IMMOBILIER does

Korenn Immobilier is a French real estate development (promotion immobilière) subsidiary of TOENN Groupe, focused on residential and commercial projects in western France — primarily the Ille-et-Vilaine and Côtes-d'Armor departments of Brittany. Founded in 2024, it operates as part of a vertically integrated group that spans three segments: individual house construction (via Maisons MTB and Maisons Inea brands, with over 5,000 homes delivered since 1985), real estate promotion (Korenn Immobilier, Neology, and Terra Développement), and asset management through the Tachenn Foncière commercial real estate portfolio. The company sells and develops properties through direct sales and a regional network of 500+ artisan and trade partners, targeting individual homebuyers and SME/mid-market property buyers across Brittany and the Grand Ouest.

The core technology proposition is the integration of Hoffmann Green's 0% clinker low-carbon cement into Korenn's development pipeline, formalized in a strategic partnership announced on October 27, 2025. This positions Korenn among the earliest western France developers systematically deploying clinker-free cement, an alignment with France's RE2020 environmental regulation. Beyond materials, the company's differentiation is operational: integrated land sourcing, in-house construction management, a 70+ collaborator workforce shared across group entities, and a 40-year regional brand history anchored in the Breton "toenn" (roof) identity.

The business model is project-based real estate development with one-time revenue recognition per unit sold. Revenue is captured at property delivery (one-time license equivalent), with the broader group generating over 80M€ in consolidated turnover. Pricing is not publicly disclosed and is determined project-by-project. The parent group is privately held under the SAS TOENN GROUPE legal entity (registered capital €500,500), with no external private equity or venture capital disclosed, and operates without app, API, or digital platform products. Customer acquisition relies on open-house events, regional/local presence, and the group's website content — no programmatic or AI-driven marketing channels are indicated.

Name

KORENN IMMOBILIER

Legal name

SAS TOENN GROUPE

Website

https://toenn-groupe.com

Company type

Private

Founded year

1985

Operating status

Operating

Short description

Korenn Immobilier is a French real estate developer and subsidiary of TOENN Groupe, focused on sustainable residential and commercial property projects across Brittany and the Grand Ouest, serving individual homebuyers and mid-market property buyers with low-carbon construction solutions.

Ownership category

akta.pro rank

Product category

Real Estate Development

NAICS

New Housing For-Sale Builders (236117)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

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

Keywords

• Real estate development
• Residential property promotion
• Sustainable construction
• Low-carbon housing
• Housing programs

Headquarters

HQ city

Rennes

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales

Revenue model

1. Real estate development: Korenn Immobilier generates revenue through real estate development projects, building residential and commercial properties in western France. The company operates as a subsidiary of TOENN Groupe, contributing to the group's overall +80M€ revenue.
2. Promotion immobilière: Property promotion activities including development and sale of real estate projects.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Korenn Immobilier develops and promotes residential real estate projects and housing programs in western France, with a focus on sustainable construction through the integration of low-carbon materials (0% clinker cement from Hoffmann Green). The company operates as part of TOENN Groupe's promotion immobilière segment, delivering residential properties in the Ille-et-Vilaine and Côtes-d'Armor departments of Brittany.

Product overview

TOENN Groupe is a comprehensive real estate operator in Brittany and Western France, organized across three main business segments: individual house construction (via Maisons MTB and Maisons Inea brands), real estate promotion (through Neology, Terra Développement, and KORENN Immobilier), and asset management (via Tachenn Foncière). The group also offers extension and renovation services through Extenn. The group has over 80 M€ in revenue, more than 70 employees, and has completed over 5,000 houses.

Differentiator

Problem solved

Functional benefit

Products and services

• Korenn Immobilier Real Estate Development Subsidiary of TOENN Groupe specializing in real estate development projects (promotion immobilière) in western France, with a focus on integrating low-carbon and sustainable construction solutions for residential properties.

Quantifiable outcome

• Successfully completed joint projects in Ille-et-Vilaine and Côtes-d'Armor departments with Hoffmann Green

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• Hoffmann Green Cement TechnologiescoreStrategic or Co-development Partner · 27 October 2025Hoffmann Green Cement Technologies has signed a strategic partnership with Korenn Immobilier to integrate 0% clinker cement into Korenn's real estate development projects in western France. The agreement follows several successful joint projects in the Ille-et-Vilaine and Côtes-d'Armor departments. This represents a step in Hoffmann Green's growth strategy to expand adoption of low-carbon cement solutions among real estate developers.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Réalités: Réalités is a regional French real estate developer with a strong presence in western and northern France, operating across property development, construction, and asset management. Comparable to Korenn Immobilier due to similar geographic concentration in western France and integrated development-to-asset-management business model.
• Groupe Lamotte: Lamotte is a major regional real estate developer headquartered in western France with operations in residential promotion, commercial real estate, and property management. Comparable to Korenn due to overlapping western France footprint and similar integrated real estate offering.
• Groupe Pichet: Pichet is a diversified French real estate group active in residential development, construction, and asset management with strong regional concentration. Comparable to Korenn's TOENN Groupe parent due to similar vertically integrated structure spanning construction through asset ownership.

Broad incumbents

• Nexity: Nexity is France's largest residential real estate developer with national coverage across housing, offices, and services. Comparable as the dominant national competitor operating in the same residential development category as Korenn but at vastly greater scale.
• Vinci Immobilier: Vinci Immobilier is the real estate development arm of Vinci Group, operating across residential housing, serviced residences, and commercial real estate in France. Comparable to Korenn in residential development category with national reach.
• Altarea (Altarea Cogedim): Altarea is a major French real estate group operating in residential (Cogedim brand), commercial, and retail real estate with national coverage. Comparable to Korenn as a major national competitor in French residential property development.
• Kaufman & Broad: Kaufman & Broad is a major French national residential developer (single-family homes, apartments, serviced residences) operating across all French regions. Comparable to Korenn as direct competitor in residential housing development with similar product offering.
• Bouygues Immobilier: Bouygues Immobilier is the property development subsidiary of Bouygues Group, one of France's largest residential and commercial developers. Comparable to Korenn as a large-scale national residential developer competing in the same promotion market.

Others

• Hoffmann Green Cement Technologies: Hoffmann Green is a French low-carbon cement manufacturer (0% clinker technology) and Korenn's strategic technology partner. Listed here as ecosystem participant rather than competitor — material to Korenn's sustainability differentiation strategy.

Emerging players

• Edouard Denis: Edouard Denis is a regional French residential developer with concentration in western and northern France, focused on individual housing and small residential programs. Comparable to Korenn as a smaller regional player pursuing similar promotion strategy in overlapping geographies.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries9 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 KORENN IMMOBILIER