Baugenossenschaft Dennerstraße-Selbsthilfe

What Baugenossenschaft Dennerstraße-Selbsthilfe does

Baugenossenschaft Dennerstraße-Selbsthilfe eG (bds) is a registered housing cooperative (eingetragene Genossenschaft) headquartered in Hamburg-Barmbek, founded in 1924 and operating continuously for 100 years as of 2024. It provides affordable residential housing to its member-residents, managing a portfolio of approximately 5,200 apartments distributed across 22 Hamburg districts, supplemented by more than 1,700 garages and parking spaces plus commercial units. The cooperative's product set spans general rental housing for singles, couples, and families, age-appropriate housing in seven districts for elderly residents, dedicated apartments for apprentices and students (including 36 units in the Wandsbek new-build), guest apartments, community rooms, and housing advisory services. Technology is conventional and operationally focused: the Immomio platform processes rental applications, the 'Meine bds' member portal and mobile app (iOS/Android) handle service requests and document access, and the corporate website publishes news and a triannual member magazine (~8,100 copies per issue).

The business model is a recurring subscription-style revenue model built on cooperative membership: prospective residents acquire cooperative shares (Genossenschaftsanteile, plus entry fee) and pay ongoing monthly usage fees (Nutzungsgebühren) set at affordable levels as a defining cooperative principle. Distribution is entirely direct-to-consumer within Hamburg, mediated through the Immomio portal, the Vermietung rental hotline, and the Barmbek-Nord head office. The cooperative is governed democratically through a Vertreterversammlung (representative assembly), Aufsichtsrat (supervisory board, chaired by Wilfried Jastrembski), and a three-person Vorstand (Olaf Klie, Carsten Rehling, Oliver Francke). There is no parent company, no external equity ownership, no funding rounds, and no subsidiaries. BDS holds memberships in the VNW, GdW, the Arbeitskreis Hamburger Wohnungsbaugenrichtsgenossenschaften, and DESWOS, and partners with technical service providers (BRUNATA-METRONA, willy.tel, EL-PA) for building operations.

Name

Baugenossenschaft Dennerstraße-Selbsthilfe

Legal name

Baugenossenschaft Dennerstraße-Selbsthilfe eG

Website

https://bds-hamburg.de

Company type

Private

Founded year

1924

Operating status

Operating

Headcount range

11–50 employees

Short description

BDS is a Hamburg housing cooperative founded in 1924, managing approximately 5,200 affordable apartments across 22 city districts for its member-residents, who hold cooperative shares, pay recurring usage fees, and enjoy lifelong tenancy rights under democratic eG governance.

Ownership category

akta.pro rank

Product category

Cooperative Residential Housing

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro industry

PRIMARYBPAJAFAC

Build-to-Rent (BTR) Community Management

Business & Public Services/Real Estate Services (Brokerage, Property Management)/Residential Property Management

SECONDARYBPAGALAC

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

Business & Public Services/Nonprofit, NGO & Social Services/Social Enterprises & Impact Organizations

Keywords

• Cooperative housing membership
• Affordable rental housing
• Residential property management
• Member-owned housing cooperative
• Senior accessible housing

Headquarters

HQ city

Hamburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales

Revenue model

1. Membership & Rental Income: BDS generates revenue through member contributions (Genossenschaftsanteile/eintrittsgeld) and ongoing housing usage fees (Nutzungsgebühren) from its residential tenants who are also members of the cooperative. This is a recurring revenue model inherent to the cooperative structure.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

BDS is a member-owned housing cooperative (eingetragene Genossenschaft) that provides approximately 5,200 affordable rental apartments across 22 Hamburg city districts to its cooperative members. Members purchase cooperative shares and pay recurring usage fees in exchange for lifelong tenancy rights, with supplementary services including senior-accessible housing, apprentice/student apartments, guest apartments, community rooms, parking, and a member portal app. The cooperative also develops new residential construction and modernizes existing stock to energy-efficiency standards.

Product overview

Baugenossenschaft Dennerstraße-Selbsthilfe eG (bds) is a housing cooperative providing approximately 5,200 affordable apartments across 22 districts in Hamburg. The company's product portfolio centers on residential housing management with a digital member portal (Meine bds) available as web and mobile app (iOS/Android), offering damage reporting, document access, and inquiry submission. The cooperative operates specialized housing segments including age-appropriate/senior housing (7 districts), apprentice and student apartments, and new construction projects. Supporting services include guest apartments, community rooms, housing advisory services, and the quarterly member magazine 'mein bds-magazin'. Housing applications are processed through the Immomio interest portal.

Differentiator

Problem solved

Functional benefit

Products and services

• Affordable Cooperative Apartment Housing (Membership-Based Rental) Core cooperative membership offering providing affordable rental apartments to members who purchase cooperative shares (Genossenschaftsanteile) and pay recurring usage fees (Nutzungsgebühren), with lifelong tenancy rights across Hamburg.
• Altersgerechtes Wohnen (Senior-Accessible Housing)

Quantifiable outcome

• ~5,200 apartments across 22 Hamburg districts, making BDS one of the large Hamburg housing cooperatives

Named customers1 record

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Verband norddeutscher Wohnungsunternehmen e.V. (VNW)coreStrategic or Co-development PartnerBDS is a member of the VNW, one of Germany's largest housing industry associations. The association represents the interests of housing companies in northern Germany and provides professional development, political advocacy, and industry networking for its members.
• GdW Bundesverband deutscher Wohnungs- und Immobilienunternehmen e.V.coreStrategic or Co-development PartnerBDS holds membership in the GdW, the federal-level umbrella organization for German housing and real estate companies. The association advocates for affordable housing policy and provides industry standards and best practices.
• Immomio GmbHcoreTechnology or IntegrationImmomio operates BDS's online apartment search and rental application portal. The platform handles tenant applications, document storage, appointment scheduling, and digital signature for rental contracts as BDS's data processor.
• KulturKlinker BarmbekminorStrategic or Co-development PartnerBDS collaborates with the KulturKlinker Barmbek (formerly Bürgerhaus Barmbek) for organizing annual courtyard concerts in the Dennerstraße residential complex. A mutual cultural partnership supporting community events.
• Arbeitskreis Hamburger Wohnungsbaugenossenschaften e.V.minorStrategic or Co-development PartnerBDS is a member of the working group of Hamburg housing cooperatives, collaborating on shared initiatives and representing cooperative interests within Hamburg.
• DESWOS (Deutsche Entwicklungshilfe für soziales Wohnungs- und Siedlungswesen e.V.)minorStrategic or Co-development PartnerBDS is a supporting member of DESWOS, a German development aid organization focused on social housing and settlement development.
• Pulverhof Projektentwicklungsgesellschaft mbH Co. KGminorStrategic or Co-development PartnerBDS acquired a newly built property (23 apartments + commercial unit) from the Pulverhof project developer at Pulverhofsweg in Farmsen-Berne.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Vonovia SE: Germany's largest residential real estate company (~500,000+ apartments nationwide) — operates in the same German residential rental market with similar recurring rent revenue model, but as a publicly listed for-profit corporation rather than a member cooperative, at vastly larger scale.
• LEG Immobilien AG: NRW-focused German residential real estate company managing ~165,000 apartments — comparable recurring-rent residential model at much larger listed scale, focused on North Rhine-Westphalia rather than Hamburg.
• TAG Immobilien AG: German residential real estate company with ~85,000 apartments focused on northern and eastern Germany — comparable recurring-rent business model at larger listed scale, with some portfolio overlap in the Hamburg/Northern Germany region.
• Deutsche Wohnen SE: Major Berlin-focused German residential landlord (now majority-owned by Vonovia) — directly comparable German large-scale residential rental operator and closest historical peer to BDS's urban high-density residential focus, but operating as a corporate landlord rather than a cooperative.

Regional players

• Degewo AG: Berlin-based housing cooperative/stock company managing ~75,000 units — comparable affordable-housing operator with similar mission and unit-type focus, but serves the Berlin market.
• Howoge Wohnungsbaugesellschaft mbH: Berlin's municipal housing company managing ~82,000 apartments — directly comparable public-mission residential housing operator at larger scale, but serves the Berlin market rather than Hamburg.
• Gewobag Wohnungsbau-Aktiengesellschaft Berlin: Berlin's largest municipal housing company with ~75,000 apartments — similar affordable-housing mandate and recurring-rent model, but geographically concentrated in Berlin rather than Hamburg.

Direct peers

• SAGA Siedlungs-Aktiengesellschaft Hamburg: Hamburg's municipal housing company managing ~140,000 apartments for affordable rent — same city, same affordable-housing mission, similar recurring usage-fee revenue model, but operating at much larger scale as a publicly owned stock corporation rather than a member cooperative.
• Baugenossenschaft Hamburg-Wandsbek von 1952 eG: Wandsbek-based Hamburg housing cooperative founded in 1952 — directly comparable cooperative model, same city, with overlapping portfolio territory including the Wandsbek district where BDS delivered its 132-unit new-build project.
• Hanseatische Wohnungsgenossenschaft Hamburg (HWH): Long-established Hamburg housing cooperative providing affordable member housing with lifelong tenancy rights — operates under the identical eG cooperative model as BDS, in the same city, with comparable segment focus on general residential and senior housing.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/baugenossenschaft-dennerstra%C3%9Fe-selbsthilfe

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Baugenossenschaft Dennerstraße-Selbsthilfe