What Sontowski & Partner Group does

Sontowski & Partner Group is a family-owned real estate investment and development holding company founded in 1984 and headquartered in Erlangen, Germany. The group operates through specialized subsidiaries covering the full real estate value chain: S&P Commercial Development handles mixed-use and quarter developments (commercial, office, retail, hotel), BayernCare develops and operates senior living facilities, S&P Grund Invest manages a residential portfolio with asset-management capabilities, and S&P Homes builds sustainable row houses using wood-hybrid construction. Core technical competencies include DGNB Gold and Platinum sustainability certification and KfW efficiency building standards, applied across developments such as The One office tower in Nuremberg (DGNB Platinum, 100% leased) and the Hainberg Quartier and MO Carré mixed-use projects.

The group's revenue model combines one-time development profits from selling completed projects to institutional investors (Nuveen Real Estate, Kingstone Real Estate, French public funds), recurring rental income from the S&P Grund Invest managed portfolio (approximately €70 million AUM and 37,000 m² as of December 2022), service development fees for bank-owned land mandates (PSD Bank Nürnberg, Sparkasse Bamberg, UmweltBank), and senior living unit sales combined with ongoing service contracts. Go-to-market is enterprise field sales targeting institutional real estate buyers, regional cooperative banks, government tenants, and commercial end-users in Bavaria and southern Germany. The firm is privately held with 11-50 employees, and recent strategic moves include a partial investment by Die Bayerische insurance group in S&P Commercial Development and continued portfolio expansion by S&P Grund Invest targeting €40-50 million in 2026 acquisitions.

Geographically, Sontowski focuses on Bavarian and southern German metropolitan areas (Nuremberg, Erlangen, Rosenheim, Bamberg, Traunreut, Regensburg), with recent expansion interest noted in the Rhein-Ruhr region. The group completed its generational ownership transition between 2021 and 2022, with founder Klaus-Jürgen Sontowski stepping aside and Dr. Tilman Engel joining management, while grandson Manuel Sontowski and Philipp Hofmockel acquired equity in S&P Grund Invest in 2025.

Name

Sontowski & Partner Group

Legal name

Sontowski & Partner GmbH

Website

https://sontowski.de

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Sontowski & Partner Group is a family-owned German real estate developer founded in 1984, operating through subsidiaries (S&P Commercial Development, BayernCare, S&P Grund Invest, S&P Homes) to develop, manage, and sell mixed-use, residential, and senior living properties primarily in Bavaria and southern Germany.

Ownership category

akta.pro rank

Product category

Real Estate Development

NAICS

Offices of Other Holding Companies (551112), Management of Companies and Enterprises (5511), Other Financial Investment Activities (5239)

SIC

Real Estate Dealers (For Their Own Account) (6532), Real Estate (6500), Investment Advice (6282)

akta.pro primary industry

Family Office Investment Platforms & Direct Investing (PE/VC/Co-Invest) (FSAAADAH)

akta.pro secondary industry

Real Estate (Commercial Property, REITs) (FSABACAH)

Keywords

• Real estate development
• Project development
• Asset management
• Senior living facilities
• Sustainable construction

Headquarters

HQ city

Erlangen

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Property Development and Sale: The group develops residential and commercial properties through its subsidiaries (S&P Commercial Development, S&P Homes) and sells completed projects to institutional investors such as Nuveen Real Estate and Kingstone Real Estate.
2. Asset Management and Property Rental Income: S&P Grund Invest manages a portfolio of existing properties, collecting rental income from tenants and pursuing value-add strategies including Manage-to-Core and Manage-to-Green approaches.
3. Service Development Mandates: S&P Commercial Development acts as a full-service development partner for banks and financial institutions (PSD Bank Nürnberg, Sparkasse Bamberg, UmweltBank), earning fees for project development, planning, and realization services.
4. Senior Living Development: BayernCare develops senior living facilities for sale to private investors or institutional buyers, with accompanying service contracts for ongoing care and support services.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Sontowski & Partner Group is a family-owned real estate investment and development holding company operating through multiple subsidiaries (S&P Commercial Development, BayernCare, S&P Grund Invest, S&P Homes). The group acquires land and properties, develops mixed-use residential, commercial, and senior living projects, then either sells completed assets to institutional investors or leases space to commercial tenants. It also provides service development mandates to financial institutions such as PSD Bank Nürnberg, Sparkasse Bamberg, and UmweltBank.

Product overview

Sontowski & Partner Group is a family-owned real estate development and investment company founded in 1984, based in Erlangen, Germany. The company operates through multiple specialized subsidiaries and develops a diverse portfolio of residential, commercial, and senior living properties across southern Germany. Core subsidiaries include S&P Commercial Development (mixed-use and quarter developments), BayernCare (senior living), S&P Grund Invest (residential investment and asset management), and S&P Homes (sustainable row house construction). Notable projects include The One office tower in Nuremberg (DGNB Platinum), Hainberg Quartier residential-commercial development, MO Carré urban quarter in Erlangen, and the Munapark mixed-use quarter in Traunreut. The group also operates digital platforms including Zinsbaustein (now merged with WIWIN) for sustainable real estate investments. The company leverages its over 40 years of industry expertise to deliver integrated property solutions spanning development, investment, and asset management.

Differentiator

Problem solved

Functional benefit

Brands

• BayernCare: Senior living and care facility development subsidiary focused on Bavaria
• S&P Commercial Development
• S&P Grund Invest
• S&P Homes
• Zinsbaustein
• SEETOR
• The One

Products and services

• S&P Commercial Development Mixed-use real estate development subsidiary specializing in urban quarter developments combining retail, office, residential, and hotel segments for institutional investors and commercial tenants.
• BayernCare Senior Living Development Development and operation of barrier-free senior apartments and care facilities across Bavaria for elderly residents seeking independent living with on-site care services. Units are sold to private investors or institutional buyers with accompanying service contracts.
• S&P Grund Invest Asset Management Residential investment and asset management subsidiary that acquires and manages existing residential portfolio properties in southern Germany, pursuing Manage-to-Core and Manage-to-Green value-add strategies. Manages approximately 70 million EUR in assets under management and 37,000 m² of rental space.
• S&P Homes Residential Development Sustainable row house and semi-detached home development subsidiary building resource-efficient residential units using wood and wood-hybrid construction methods in southern German metropolitan areas.
• Service Development Mandates Full-service development partnership for banks and financial institutions (PSD Bank Nürnberg, Sparkasse Bamberg, UmweltBank), where S&P Commercial Development acts as developer handling planning, approval, and realization of mixed-use quarters. S&P CD has completed 9 Service Development projects with over 180,000 m² gross floor area.

Quantifiable outcome

• S&P Grund Invest acquired five multi-family buildings with 4,100 m² living space and 54 residential units in Nuremberg
• +2 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Seniorenservice ReifcoreStrategic or Co-development Partner · 21 May 2026Seniorenservice Reif provides service and support services for residents of BayernCare's Traunreut senior living facility. The regional operator, which also runs the Traunwinkl residential and care home, delivers 24-hour emergency calls, consultation hours, communal activities, and coordination of daily services.
• PSD Bank Nürnberg eGcoreStrategic or Co-development Partner · 1 May 2026PSD Bank Nürnberg commissioned S&P Commercial Development as development partner for the MO Carré urban quarter project in Erlangen. The bank is a regional cooperative bank with 298 employees and assets ranking 64th among 670 German cooperative banks.
• ZECH Bau SEcoreStrategic or Co-development Partner · 19 March 2026ZECH Bau SE was contracted as general contractor for BayernCare's senior living project in Traunreut. The construction company brings extensive expertise in implementing demanding residential projects and will handle the construction of the 76-barrier-free senior apartments in the Munapark quarter.
• ZBI GruppeminorStrategic or Co-development PartnerS&P Grund Invest acquired a portfolio from ZBI Gruppe consisting of one multi-family house and two residential and commercial buildings as the foundation for its own portfolio.
• Sparkasse BambergcoreStrategic or Co-development PartnerS&P Commercial Development is developing the Carl-Meinelt-Quartier in Bamberg (approximately 36,000 m²) for Sparkasse Bamberg as a future-oriented mixed-use quarter.
• UmweltBank AGcoreStrategic or Co-development PartnerS&P Commercial Development supports UmweltBank as developer for the UmweltQuartier project in Nuremberg, assisting with planning and approval processes.
• Allgäuer Geiger GruppeminorStrategic or Co-development PartnerThe Allgäuer Geiger Gruppe was commissioned by BayernCare for the construction of the Siebenbürgerheim care center in Lechbruck am See.

Scale indicators11 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Vonovia: Europe's largest residential real estate company with a massive German portfolio and growing development/serial refurbishment business. Relevant as the dominant incumbent that institutional investors and tenants benchmark S&P's DGNB-certified projects against, particularly in the German living impact strategy space.

Emerging players

• WIWIN: Sustainable digital investment platform that merged with S&P's former subsidiary Zinsbaustein in 2025. Comparable as an adjacent platform enabling retail and semi-professional investors to access sustainable real estate investments, overlapping directly with Zinsbaustein's former activities.

Direct peers

• Instone Real Estate: Listed German residential and mixed-use real estate developer active in metropolitan areas across Germany. Directly comparable as a German-focused developer of sustainable, institutional-grade residential and quarter projects; Philipp Hofmockel (now S&P Grund Invest MD) previously served as Head of Acquisitions at Instone.
• PROJECT Immobilien: Privately held German residential and mixed-use developer active in southern German metropolitan markets including Bavaria. Comparable as a private, regionally focused developer of sustainable residential and quarter developments selling to institutional investors.
• Königstadt Brauerei / Quartier Entwicklungsmodelle (e.g., Kondor Wessels): German real estate developer with active mixed-use quarter and residential projects in Berlin and other German metropolitan areas. Comparable as a developer of institutional-grade sustainable residential and mixed-use quarters targeting similar buyer profiles (institutional investors, long-lease commercial tenants).
• ZBI Gruppe: German residential real estate investment manager specializing in German multi-family housing portfolios. S&P Grund Invest acquired a founding portfolio of one multi-family house and two mixed-use residential-commercial buildings from ZBI, making ZBI a directly comparable peer in German Wohnen asset management.
• Patrizia: European real estate investment manager and developer with significant German residential and mixed-use exposure. Comparable as a vertically integrated German real estate platform combining development, asset management, and capital partner relationships with institutional investors.
• Branicks Group (formerly DIC Asset): Frankfurt-listed German commercial real estate investment manager with a focus on office and mixed-use assets. Sontowski & Partner holds a minority stake in Branicks and the platforms overlap in commercial asset management, leasing, and DACH-focused investment management.

Regional players

• Bayernhaus Wohnungsbau: Bavaria-focused residential and row house developer with deep regional footprint in southern Germany. Directly comparable to S&P Homes' sustainable row house and single-family home development business in the same Bavarian geography.
• Allgäuhaus: Allgäu-based construction and real estate group commissioned by BayernCare for the Siebenbürgerheim care center. Relevant as a regional construction partner and peer in southern German senior living and residential build execution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sp-commercial-development
• Instagraminstagram.com/bayern_care

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sontowski & Partner Group