Dauphine Society

What Dauphine Society does

Société Dauphinoise pour l'Habitat (SDH), operating under the brand Dauphine Society, is a private French social housing provider classified as an Entreprise Sociale pour l'Habitat (ESH) and headquartered in Échirolles, Isère. The company is a subsidiary of Groupe Action Logement and operates as the leading ESH in the Isère department, managing more than 23,000 dwellings across 170+ communes. SDH's core mission is to build, rehabilitate, and manage affordable rental housing for low-income populations, including families, students, seniors (60+), persons with disabilities, individuals in social precarity, and migrants. The company segments its offerings through sub-brands: family social housing (SDH core), student housing (SD'up and Yellome partnership), senior-adapted housing (Sage's), sustainable construction (SD'sol), and homeownership pathways (SD'access).

SDH's business model is anchored in regulated recurring rental income from social housing, with rents calculated according to strict French regulations and indexed to the Rent Reference Index (IRL). Tenants benefit from APL (Aide Personnalisée au Logement) housing assistance, which is paid directly to SDH, providing cash flow visibility. The company also generates one-time revenue through its SD'access property sale program. GTM is conducted through direct channels (sdh.fr website, headquarters visitation), the government housing application portal (demande-logement-social.gouv.fr), and a tenant-facing digital ecosystem comprising the 'Espace Locataire' portal and the 'SDH et Moi' mobile application (iOS and Android) for rent payment, account management, and incident reporting. The technology stack also includes the Facil'iti accessibility tool for disabled users and a dedicated recruitment portal (recrutement.sdh.fr).

The company employs 251–500 staff and operates approximately 30 specialized establishments with over 1,700 beds serving elderly, disabled, homeless, students, migrants, and social reintegration populations. Strategic partnerships span Action Logement (parent), CARSAT, Département de l'Isère, CCAS municipalities, DIGI (intergenerational housing), ADEME (environmental transition), and ENEAL/ACCPA (specialized establishments). Recent activity in 2025 includes the inauguration of La Calandrelle (low-carbon residence), groundbreaking of Oiseau Blanc, rehabilitation of La Gérifondière, and joining the Yellome student housing platform. The company is governed by a Director General, Patricia Dudonne, with oversight from local elected representatives and tenant representatives.

Name

Dauphine Society

Legal name

Société Dauphinoise pour l'Habitat

Website

https://sdh.fr

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

251–500 employees

Short description

Société Dauphinoise pour l'Habitat (SDH) is a French social housing provider that builds and manages over 23,000 affordable rental dwellings across 170+ communes in Isère, serving low-income families, students, seniors, disabled persons, and migrants.

Ownership category

akta.pro rank

Product category

Social Housing Services

NAICS

Rental and Leasing Services (532), Lessors of Real Estate (5311)

SIC

Operators Of Apartment Buildings (6513), Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Affordable & Subsidized Housing Property Management (LIHTC, Section 8) (BPAJAFAD)

akta.pro secondary industry

Affordable Housing & Community Development (Housing, Community Land Trusts) (BPAGALAC)

Keywords

• Social housing services
• Affordable housing
• Residential property management
• Senior housing
• Student housing

Headquarters

HQ city

Échirolles

HQ country

France

HQ region

Europe

Offices9 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Social Housing Rent: SDH generates revenue primarily through renting social housing units to eligible tenants. Rent is calculated according to strict regulations based on housing surface, location, equipment, and financing methods. Tenants benefit from Housing Assistance (APL) paid directly to SDH, reducing effective rent burden. Rents are subject to annual revision based on the Rent Reference Index (IRL).
2. Social Housing Sales (SD'access): SDH operates SD'access brand (sdaccess.fr) for property sales, offering new housing units for purchase.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels9 records

Core offering

SDH builds, manages, and rents social housing units across more than 170 communes in the Isère department, providing affordable rental dwellings to low-income families, students, seniors, people with disabilities, and people in social precarity. The company also sells properties through its SD'access brand and operates approximately 30 specialized collective establishments with over 1,700 beds serving vulnerable populations. Tenants access rent payment, account management, and incident reporting through a dedicated web portal and the SDH et Moi mobile application.

Product overview

SDH (Société Dauphinoise pour l'Habitat) operates as a unified social housing provider offering a diverse portfolio of residential solutions through distinct branded services. The core offerings include family housing (logements familiaux), student housing via SD'up and Yellome, and senior housing through Sage's and dedicated senior-adapted units. Additional services encompass SD'access for property purchases, SD'sol for sustainable housing initiatives, VMC (ventilation systems), garage rentals, and specialized establishments for elderly, disabled, precarity, and migrant populations. The company also provides a tenant portal 'Espace Locataire' and mobile application 'SDH et Moi' for account management, rent payment, and incident reporting.

Differentiator

Problem solved

Functional benefit

Brands

• SD'access: Subsidiary focused on property purchasing and new development programs.
• Sage's
• SD'sol
• SD'up
• Yellome

Products and services

• SDH Family Social Housing (Logements familiaux) Core social housing rental offering providing family and individual rental properties for low-income households across more than 170 communes in Isère, managing a portfolio of more than 23,000 dwellings with rents regulated by French social housing rules.
• SD'up Student Housing Furnished student housing brand offering studios and apartments at affordable rents with APL/ALS housing assistance eligibility, no agency fees, located near universities across the Grenoble area.
• Sage's Senior Housing Senior housing brand providing adapted residences for elderly tenants with technical adaptations enabling independent living, including units historically certified under the Habitat Senior Services (HSS) label.
• SD'access Property Sales Property purchase program allowing tenants to become homeowners, managed as a separate entity at sdaccess.fr offering new housing units for purchase.
• Specialized Establishments (Établissements Spécifiques) Management of specialized collective establishments including EHPADs, disability residences, precarity housing, student residences, social reintegration facilities, and migrant housing totaling over 1,700 beds across 30+ establishments.
• Intergenerational Residences (Résidences Intergénérationnelles) Intergenerational residences promoting social mix with dedicated units for seniors and families, including innovative colocation programs with DIGI association for intergenerational living.
• SD'sol Sustainable Housing Sustainable housing initiative focused on environmentally responsible construction and renovation practices, including low-carbon residences such as La Calandrelle in Saint-Égrève.
• Garage Rentals (Location Garage) Rental of parking garages and parking spaces to tenants and residents across the SDH housing portfolio.

Quantifiable outcome

• 94% of senior-designated dwellings with relocation commitment occupied by seniors (Dec 31, 2024)
• +4 more outcomes

Named customers2 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature2 records

Partnerships

Nine partnerships are on record, tiered minor and major.

• ENEALminorImplementation/ SI/ Consulting PartnerENEAL provides expertise for SDH's specific establishment management, offering technical support for construction projects including EHPADs and collective facilities.
• ACCPAminorImplementation/ SI/ Consulting PartnerACCPA (Apprentiss'AGES) supports SDH in managing specific establishments with expertise in aging and care facility operations.
• CCAS (Centres Communaux d'Action Sociale)majorStrategic or Co-development PartnerCCAS municipalities partner with SDH for senior housing attribution, intergenerational program animations, and community development. Examples include joint animations at Golden Parc residence with CCAS developing intergenerational activities.
• Fondation Partage et VieminorImplementation/ SI/ Consulting PartnerFoundation Partage et Vie provides support for SDH's specific establishment projects, particularly for elderly care facilities.
• DIGI (Domicile Inter Générations Isèrois)majorStrategic or Co-development PartnerDIGI is SDH's key partner for intergenerational housing innovation. They combat isolation among elderly while offering young people affordable housing in exchange for social utility roles. Partnership includes colocation programs like 'Une chambre en plus' and 'Solidarités intergénérationnelles' at Golden Parc residence.
• CARSATmajorStrategic or Co-development PartnerCARSAT (Caisse d'Assurance Retraite et de la Santé au Travail) partners with SDH for senior housing adaptations and financing. Over 50 senior partnership conventions signed covering housing adaptations and aging-well initiatives.
• Département de l'IsèremajorStrategic or Co-development PartnerDepartment of Isère collaborates with SDH on senior housing strategies, including financing and attribution programs. Multiple conventions signed for senior housing development.
• Communes (Municipalities)majorStrategic or Co-development PartnerIsère municipalities partner with SDH for housing attribution, senior housing prioritization, and intergenerational program development. SDH maintains computer-based tracking of senior-designated housing with priority relocation commitment to seniors.
• ADEMEminorStrategic or Co-development PartnerADEME (Agence de la Transition Ecologique) partners with SDH for innovative projects like the Manag'R method experimentation at Le Totem residence to improve indoor air quality.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• ICF Habitat: ICF Habitat is the SNCF group's social housing subsidiary operating ~100,000 units across France. Same ESH framework and regulated rent model, with comparable tenant services portfolio and focus on affordable/senior housing.
• Polylogis: Polylogis is a national ESH group managing ~80,000 units through regional subsidiaries. Directly comparable to SDH as an ESH with social, senior, and student housing segments, organized regionally with strong municipal relationships.
• Groupe 3F (Immobilière 3F): Groupe 3F is a major French HLM (ESH status) managing over 250,000 units with similar social housing and senior/specialized segments. Directly comparable in operating model, ESH regulatory status, and product mix to SDH.
• Batigère: Batigère is a major national ESH managing ~80,000 units across eastern France. Comparable operating model, regulatory status, and segment mix (family housing, specialized establishments, senior services) to SDH.

Broad incumbents

• CDC Habitat: CDC Habitat is the largest social housing operator in France (Caisse des Dépôts subsidiary), managing 500,000+ units nationwide. Operates as a comparable ESH with a national footprint and similar regulated revenue model, but at vastly larger scale than SDH.
• Vilogia: Vilogia is a major French HLM operating ~90,000 units primarily in northern France (Hauts-de-France/IDF). Comparable operating model and ESH status; geographically distant but structurally similar in segment portfolio and revenue regulation.

Regional players

• Dynacité: Dynacité is a regional ESH in the Ain department (adjacent to Isère) under the Action Logement group umbrella. Sister affiliate with same parent group as SDH, applying comparable HLM operating model in a neighboring geography.
• Est Métropole Habitat: Est Métropole Habitat is the ESH for the eastern Lyon metropolis, managing ~17,000 units. Comparable regional operator with same ESH framework, social housing mission, and segment mix as SDH.
• Alliade Habitat: Alliade Habitat is one of the largest ESHs in the Auvergne-Rhône-Alpes region (Lyon area), managing ~50,000 units. Comparable as a sister regional ESH within the same broader region as SDH, with overlapping product lines including senior and student housing.
• Advivo: Advivo (formerly OPAC du Rhône) is the principal HLM operator in the Lyon metropolitan area. Comparable regional social housing business model to SDH, with similar segment coverage (family, student, senior, specialized) and regulated revenue dynamics.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/sdh_officiel
• YouTubeyoutube.com/channel/UCzDdGIJ89hB_Wsrhu5nrL5w
• Facebookfacebook.com/pg/SDH.logement/posts
• LinkedInlinkedin.com/company/sdh-soci%C3%A9t%C3%A9dauphinoisepourlhabitat
• Instagraminstagram.com/sdh__logement

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Dauphine Society