What SIEDLUNGSUNION Gemeinnützige Wohnungs- und Siedlungsgenossenschaft m.b.H. does

SIEDLUNGSUNION Gemeinnützige Wohnungs- und Siedlungsgenossenschaft m.b.H. is a non-profit housing cooperative (Gemeinnützige Bauvereinigung) founded in 1927 and headquartered at Mergenthalerplatz 10 in Vienna's 22nd district (Donaustadt). Operating under the Austrian Wohnungsgemeinnützigkeitsgesetz (WGG), the cooperative provides affordable housing across multiple Vienna districts (1100, 1110, 1170, 1200, 1210, 1220), serving individual tenants, owner-members, and small commercial occupants. Its portfolio comprises subsidized cooperative housing, SMART-Wohnbau apartments, free-financed units, Eigentumswohnungen, offices and retail, and garage/parking facilities, with notable recent deliveries including Esslinger Arkaden (140 units, June 2024) and Gundackergasse 27 (116 units plus kindergarten, September 2023).

The cooperative runs on a cost-coverage (Kostendeckungsprinzip) model: monthly usage fees (Nutzungsentgelt) and one-time financing contributions (Finanzierungsbeitrag) are set to cover construction, operations, maintenance, administration, and reserves — not to generate profit. Pricing is adjusted annually for inflation under WGG §14; for 2026, the cooperative voluntarily deferred the inflation-based increase to July 1, 2026. Distribution is exclusively domestic via direct in-person service at the Vienna office and a self-serve website built on the CREAM platform by ALAN Information-systems GmbH, with no app or social channels. Supporting services include an online Voranmeldung pre-registration system, a 24/7 Notdienst emergency hotline (BELFOR), financial-assistance guidance for Wiener Wohnbauförderung subsidies, and tenant-facing digital tools such as a Finanzierungsrechner.

The organization also manages properties on behalf of Wiener Wohnen (the City of Vienna's municipal housing authority) and partners with Wiener Städtische Versicherung for tenant insurance offerings and with construction firms (Strabag, Swietelsky, Gerstl Bau, Rhomberg Bau) for development. Governance follows the cooperative member model, with a 97th Generalversammlung held in June 2026 and Obmann Bernhard Wolf as chairman; the entity is audited by the Österreichischer Verband gemeinnütziger Bauvereinigungen - Revisionsverband.

Name

SIEDLUNGSUNION Gemeinnützige Wohnungs- und Siedlungsgenossenschaft m.b.H.

Legal name

SIEDLUNGSUNION Gemeinnützige Wohnungs- und Siedlungsgenossenschaft m.b.H.

Website

https://siedlungsunion.at

Company type

Private

Founded year

1927

Operating status

Operating

Headcount range

1–10 employees

Short description

SIEDLUNGSUNION is a Vienna-based non-profit housing cooperative founded in 1927 that provides affordable cooperative, subsidized, and ownership housing across multiple Viennese districts under the Austrian WGG cost-coverage framework.

Ownership category

akta.pro rank

Product category

Affordable Housing / Cooperative Housing Services

NAICS

Lessors of Residential Buildings and Dwellings (53111), Lessors of Nonresidential Buildings (except Miniwarehouses) (531120)

SIC

Services-To Dwellings & Other Buildings (7340), Services-Membership Organizations (8600)

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

• Affordable housing
• Cooperative housing
• Subsidized housing
• Residential property management
• Housing development

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Others, Technology or R&D

Revenue model

1. Cooperative Housing (Genossenschaftswohnungen): The organization operates as a non-profit housing cooperative (Gemeinnützige Bauvereinigung) under Austrian Wohnungsgemeinnützigkeitsgesetz (WGG). Members pay a financing contribution (Finanzierungsbeitrag) as a one-time entry fee for cooperative housing units, and a monthly usage fee (Nutzungsentgelt). The organization is committed to the cost-coverage principle (Kostendeckungsprinzip) — monthly fees must be sufficient to cover construction costs, operating expenses, maintenance, administrative costs, and necessary reserves.
2. Rental Income from Residential and Commercial Units: Monthly rental income from apartments, office spaces (Büros und Geschäftslokale), and garage/parking spots (Garagen und Abstellplätze). Rental fees are adjusted annually, with the organization voluntarily delaying inflation-based adjustments for the first three months.
3. Condominium / Ownership Sales (Eigentumswohnungen): Sale of ownership apartments (Eigentumswohnungen) at various price points (e.g., €244,673.52 to €503,462.82), with monthly maintenance costs ranging from €227.79 to €465.24.
4. Garage and Parking Rentals: Monthly rental income from garage spots (starting from €29.65/month for uncovered parking, €62.16/month for garage) and one-time financing contributions (e.g., €1,700.00).

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels1 record

Core offering

SIEDLUNGSUNION is a non-profit housing cooperative operating under Austrian WGG law, providing affordable rental and ownership apartments (Genossenschaftswohnungen and Eigentumswohnungen), commercial office and retail spaces, and garage/parking facilities across multiple Vienna districts. Members pay a one-time financing contribution (Finanzierungsbeitrag) and a monthly usage fee (Nutzungsentgelt) set on a cost-coverage basis, with the portfolio including subsidized (geförderte), SMART-subsidized, and free-financed (freifinanzierte) housing units.

Product overview

SIEDLUNGSUNION is a non-profit housing cooperative (gemeinnützige Wohnungsgenossenschaft) based in Vienna that provides affordable housing services primarily in the Donaustadt district. The company operates as a comprehensive housing platform offering various housing types including immediately available rental apartments (Sofort Wohnen), new construction projects (Projekte in Bau), planned developments, commercial spaces (Büros und Geschäftslokale), and parking facilities (Garagen und Abstellplätze). The portfolio includes subsidized housing (geförderte Wohnungen), SMART apartments, owner-occupied apartments (Eigentumswohnungen), and privately financed housing (freifinanzierte Wohnungen). Supporting tenant services include pre-registration for apartments (Wohnungsvoranmeldung), damage reporting (Schadensmeldung), financial assistance guidance (Finanzhilfen), insurance coverage, and a financing calculator tool.

Differentiator

Problem solved

Functional benefit

Products and services

• Sofort Wohnen (Immediate Housing) Immediately available apartments for rent with flexible terms including options for ownership (Eigentumsoption), located across Vienna districts 1100, 1110, 1170, 1200, 1210, and 1220. Searchable on the website by region, size, room count, and price.
• Projekte in Bau (Projects Under Construction) New residential construction projects in various stages of development, offering SMART apartments, subsidized housing, and privately financed apartments for prospective tenants and buyers.
• Projekte in Planung (Planned Projects) Future housing development projects in the planning phase, available for prospective buyers to review and express interest.
• Büros und Geschäftslokale (Offices and Commercial Spaces) Office and commercial space rentals managed by the housing association, with monthly fees ranging from €1,490.35 (116 m² office, Polletstrasse) to €3,711.84 (502.82 m², Eibengasse 57 EG) and a financing contribution of approximately €291,802.12.
• Garagen und Abstellplätze (Garages and Parking Spaces) Underground and surface parking facilities available for rent to tenants and nearby residents, with garage spots starting from €29.65/month (Langobardenstrasse overground) and €62.16/month (Eibengasse underground), plus a one-time financing contribution from €1,700.00.
• SMART-Wohnungen (Subsidized Small Apartments) Small, government-subsidized apartments designed for affordable housing under the SMART housing program (Wiener Wohnbauförderung), targeted at individuals and families seeking below-market rental housing in Vienna.
• Eigentumswohnungen (Owner-Occupied Apartments) Condominium apartments available for purchase, with options for subsidized ownership, priced from €244,673.52 to €503,462.82 with monthly maintenance costs ranging from €227.79 to €465.24.
• Esslinger Arkaden (Telephonweg 1) Subsidized new construction housing complex at Telephonweg 1 in Vienna, comprising 140 subsidized apartments and 80 parking spaces, with retail spaces, office facilities, and a senior center. Completed June 2024.
• Gundackergasse 27 Projekt Subsidized new construction housing complex at Gundackergasse 27, comprising 77 owner-occupied apartments, 39 SMART apartments, a 4-group kindergarten, and 69 parking spaces, focused on healthy and nature-oriented living. Completed September 2023.
• Esslinger Hauptstraße 66 Development New construction housing development project at Esslinger Hauptstraße 66 in Vienna's Donaustadt district, comprising 60 apartments (23 SMART-subsidized, 14 subsidized with ownership option, 8 subsidized without ownership option, 15 free-financed) and 2 commercial units, expected for occupancy September 2026.
• Finanzhilfen (Financial Assistance Advisory) Advisory service providing information and guidance on government subsidies including Eigenmittelersatzdarlehen (equity replacement loans) and §12/§14/§15 WWFSG 1989 housing grants for prospective cooperative members and buyers.
• Versicherungsschutz (Insurance Coverage) Building insurance coverage for tenants including fire insurance, water pipe insurance, liability insurance, and storm damage insurance (in partnership with Wr. Städtische Versicherung AG).

Quantifiable outcome

• Over 5,000 registered housing applicants managed in the mid-1990s with formalized allocation criteria

Named customers2 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Nine partnerships are on record, tiered core and minor.

• Wiener Wohnen - Service CentercoreOthersWiener Wohnen is the largest property management company in Vienna, managing over 500,000 municipal apartments. SIEDLUNGSUNION also manages properties for Wiener Wohnen, demonstrating a trusted operational partnership. Located at Rosa Fischer Gasse 2, 1030 Wien. Tel: 05 75 75 75.
• Wr. Städtische Versicherung AG (Wiener Städtische Versicherung)minorOthersWiener Städtische Versicherung is a long-standing insurance partner recommended to tenants for additional private insurance coverage. The organization has partnered with them for a storm damage insurance offering (Sturmschadenversicherung) for cooperative members. Located at Dr.-Adolf-Schärf-Platz 9 / Vienna TWENTYTWO.
• Kuratorium Wiener Pensionisten WohnhäuserminorOthersA Viennese organization providing senior housing and care services. Located at Seegasse 9, 1090 Wien. Partnership likely relates to senior housing options for residents.
• ALAN Information-systems GmbHcoreTechnology or IntegrationALAN Information-systems GmbH is the software developer and digital partner responsible for the concept and implementation of the SIEDLUNGSUNION website. Located at Altmannsdorfer Str. 154-156, 1230 Wien. Website is based on the CREAM software system.
• sigs bauplanungs gmbhcoreStrategic or Co-development PartnerArchitectural and planning firm responsible for the Esslinger Hauptstraße 66 new development project (2024-2026) in Vienna's Donaustadt district, a 60-apartment complex with 23 SMART-subsidized, 14 subsidized with ownership option, 8 subsidized rental, and 15 free-financed apartments.
• Strabag AGminorStrategic or Co-development PartnerAustria's largest construction company. Partnership related to construction and development projects. Located at Donau City Strasse 9, Vienna.
• Swietelsky AGminorStrategic or Co-development PartnerAustrian construction and civil engineering company. Partnership related to construction and development projects. Located at Edeltannenweg 25, 4600 Wels.
• Gerstl Bau GmbH & Co KGminorStrategic or Co-development PartnerConstruction company partnership. Located at Kematen an der Krems 25, 4600 Wels.
• Rhomberg Bau GmbHminorStrategic or Co-development PartnerConstruction company partnership. Located at Mariahilfkirchstrasse 29, 6900 Bregenz.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Vonovia SE: Europe's largest residential property company (~540,000 units across Germany, Austria, Sweden). Competes in Austrian/Viennese rental housing but operates as a for-profit publicly-listed incumbent rather than a non-profit cooperative.
• BUWOG Group: Major Austrian residential developer and landlord (subsidiary of Vonovia) active in Vienna with comparable rental and condominium product, though operating on a for-profit rather than non-profit basis.

Direct peers

• Sozialbau AG: A major Vienna-based Gemeinnützige Bauvereinigung developing subsidized and free-financed housing. Operates under the same WGG cost-coverage framework with comparable product mix across multiple Vienna districts.
• Heimat Österreich: Largest Austrian non-profit housing developer by unit count, with significant Vienna exposure. Provides directly comparable subsidized, SMART, and ownership-option housing under the same WGG regulatory regime.
• Wiener Wohnen: The City of Vienna's municipal housing company managing 500,000+ apartments. Operates in the same Vienna geography with overlapping subsidized housing mandate, and is already a partner that contracts property management work to SIEDLUNGSUNION.
• WBV-GPA Wohnbauvereinigung: Vienna-based Gemeinnützige Bauvereinigung with overlapping tenant base, similar Nutzungsentgelt pricing model, and active participation in the Wiener Wohnbauförderung program.
• EBS Wohnungsgesellschaft mbH: Vienna Gemeinnützige Bauvereinigung providing subsidized and free-financed rental housing. Closely comparable in scale, product offering, and cost-coverage pricing structure to SIEDLUNGSUNION.
• GESIBA Gemeinnützige Siedlungs- und Bauaktiengesellschaft: Vienna-based non-profit housing company operating under WGG with comparable subsidized, SMART, and ownership housing programs across multiple districts — directly competes for the same Vienna tenants and development sites.
• Wiener Heimstätte: One of the largest Austrian non-profit housing cooperatives, headquartered in Vienna. Competes directly for subsidized development sites and operates a similar rental + ownership portfolio across Vienna districts.

Regional players

• Neue Heimat Tirol: Austrian Gemeinnützige Bauvereinigung operating the same WGG cost-coverage model and subsidized housing programs, but focused on the Tyrol region — comparable in regulatory regime and product structure without direct Vienna competition.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/siedlungsunion-gemeinn%C3%BCtzige-wohnungs-und-siedlungsgenossenschaft-m-b-h

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 SIEDLUNGSUNION Gemeinnützige Wohnungs- und Siedlungsgenossenschaft m.b.H.