IHR HAUS Sahle Massivbau GmbH

What IHR HAUS Sahle Massivbau GmbH does

IHR HAUS Sahle Massivbau GmbH is a Greven-based German residential property developer and turnkey construction company (Schlüsselfertiges Bauen) operating as a wholly-owned subsidiary of the family-owned Sahle Wohnen corporate group. The company develops and sells single-family homes, semi-detached houses (Doppelhaushälften), and terraced houses (Reihenhäuser) — predominantly in solid masonry construction (Massivbauweise) — to private end buyers seeking primary residences. Its core technology platform comprises standardized solid-construction methods, Lean Management on-site workflows (adopted since summer 2022), a fully digitized five-year warranty management system (Digitales Gewährleistungsmanagement), an in-house Sonderwunschmanager for buyer customization, and SmartHome integration in delivered units. Properties are delivered to KfW-55 and Energy Efficiency House 40 standards with heat pump or district heating and on-site photovoltaic systems.

The business operates on a project-by-project, one-time-sale revenue model: each home is sold individually at project-specific price points (square meter ranges publicly disclosed, total prices not disclosed), with some projects also offering commission-free developer-free plots (bauträgerfreie Grundstücke). Customers are exclusively private individuals and families; lead generation and sales are handled through a multi-channel mix combining dedicated on-site InfoCenters, regular Info Sundays, trade fair presence, social media, digital consultation (MS Teams/Zoom), and an exclusive channel partnership with Sparkassen Immobilien GmbH Münsterland Ost for the HEYMAT YORK project. Active developments span four German states — Sonnenkamp Wolfsburg (up to 3,000 units, joint venture with Groth-Sahle), HEYMAT YORK Münster (>100 homes, taken over December 2024 after predecessor insolvency), August-Euler-Höfe Griesheim (~500 units), Tandem Hoch2 Mannheim (10 units, sold out July 2025), and Grant Circle Mannheim (275 units). With approximately 30 employees and operating revenues that are not publicly disclosed, IHR HAUS functions as a focused operating subsidiary within the larger Sahle Wohnen group, which provides capital backing, strategic direction, and operational synergies.

Name

IHR HAUS Sahle Massivbau GmbH

Legal name

IHR HAUS Sahle Massivbau GmbH

Website

https://ihr-haus-sahle.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

IHR HAUS Sahle Massivbau GmbH is a Greven, Germany-based residential developer and turnkey builder (subsidiary of Sahle Wohnen) that constructs and sells single-family homes, duplexes, and terraced houses to private buyers across four German states, including major projects at Sonnenkamp Wolfsburg, HEYMAT YORK Münster, and August-Euler-Höfe Griesheim.

Ownership category

akta.pro rank

Product category

Residential Property Development

NAICS

New Housing For-Sale Builders (236117)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro primary industry

Custom Home Building (IMAFABAC)

akta.pro secondary industry

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

Keywords

• Turnkey residential construction
• Single-family home development
• Massivbau residential building
• Property development services
• Housing project development

Headquarters

HQ city

Greven

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Residential Property Sales (Schlüsselfertiges Bauen): One-time sale of turnkey single-family homes, semi-detached houses (Doppelhaushälften), and terraced houses (Reihenhäuser) to private buyers. Revenue is generated through individual property sales at project-specific price points. The company also sells developer-free plots (bauträgerfreie Grundstücke) commission-free.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

IHR HAUS Sahle Massivbau GmbH plans, builds, and sells turnkey (schlüsselfertig) owner-occupied residential properties in solid masonry construction (Massivbauweise), including single-family homes, semi-detached houses (Doppelhaushälften), and terraced houses (Reihenhäuser), across multi-quarter residential developments in Germany. It also offers developer-free plots (bauträgerfreie Grundstücke), digital warranty management, Sonderwunschmanager customization, and SmartHome integration as part of its residential offerings.

Differentiator

Problem solved

Functional benefit

Products and services

• Sonnenkamp (Wolfsburg) – Quartier 3 Owner-Occupied Homes
• HEYMAT YORK (Münster) – York-Quartier Owner-Occupied Homes
• August-Euler-Höfe (Griesheim) – Owner-Occupied Homes
• Tandem Hoch2 (Mannheim) – Innovative Stacked Townhouses
• Grant Circle (Mannheim) – Owner-Occupied Homes and Renovated Buildings

Quantifiable outcome

• Optimal price-performance ratio guaranteed through fixed pricing and contractually guaranteed handover dates.
• +3 more outcomes

Named customers4 records

Segments1 record

Ideal customer profiles1 record

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Unternehmensgruppe Sahle Wohnen (Parent Group)coreOthersIHR HAUS Sahle Massivbau GmbH is a wholly-owned subsidiary of the Unternehmensgruppe Sahle Wohnen. The parent company provides strategic direction, capital backing, and operational synergies in residential development and property management. IHR HAUS operates under the parent group's corporate philosophy, extending it into the property developer business (Bauträgergeschäft).
• Groth-Sahle Projektentwicklung GmbH & Co. KGcoreStrategic or Co-development PartnerJoint project development partner for the Sonnenkamp development in Wolfsburg. Responsible for land development and infrastructure works. IHR HAUS handles the single-family home construction and sales while Groth-Sahle manages site preparation and infrastructure. Together with Sahle Wohnen, Groth-Sahle is developing Norddeutschlands largest new building area (155 hectares, up to 3,000 units over 10 years).
• Sparkassen Immobilien GmbH – Sparkasse Münsterland OstcoreChannel Partner/ Reseller/ DistributorExclusive sales and distribution partner for the HEYMAT YORK project in Münster. The Sparkasse subsidiary handles all buyer consultations, contract formalities, and after-sales handover support. Kristina Berndmeyer serves as the dedicated contact. The partnership enables IHR HAUS to reach the Sparkasse's established customer base of savers and investors seeking residential property.
• KonvOY GmbHminorStrategic or Co-development PartnerProject partner in the HEYMAT YORK development in Münster. The KonvOY company manages the development of the former York barracks site following the takeover of the project from the insolvent previous developer. CEO Stephan Aumann participated in project restart events alongside IHR HAUS management.
• Stadtentwicklungsgesellschaft Griesheim SEGG mbHcoreStrategic or Co-development PartnerStrategic development partner for the Griesheim Anger project. IHR HAUS Sahle Massivbau GmbH works closely with SEGG to plan and build a balanced mix of single-family homes and owner-occupied apartments in solid construction on three building fields within the August-Euler-Höfe development.
• Stadtentwicklungsgesellschaft für Mannheim (MWSP)coreStrategic or Co-development PartnerUrban development company responsible for the Spinelli quarter conversion. MWSP coordinates the transformation of the former US military area. IHR HAUS builds and sells townhouses (Tandem Hoch2) within the broader Spinelli quarter being developed for the Bundesgartenschau 2023.
• Stadtentwicklungsgesellschaft für Mannheim (MWSP) – FRANKLINcoreStrategic or Co-development PartnerMWSP coordinates the broader FRANKLIN urban quarter where the Grant Circle project is located. IHR HAUS develops 216 modern new-build townhouses within this former US Officers' Settlement, while 59 existing buildings along James-Monroe-Ring were renovated. The project appears in the regional architectural guide.
• Hüttig & RumpfminorGTM or Marketing PartnerReal estate financing advisor providing personal financing consultations to prospective buyers of IHR HAUS properties. Offered at events such as open house days, helping buyers align their financing options with IHR HAUS property purchases.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• vonovia: Largest German residential landlord and developer, active across the country in rental, refurbishment and new-build housing. Overlaps with IHR HAUS in residential construction but operates a fundamentally rental-scale model rather than IHR HAUS's pure-for-sale Bauherr model.
• Deutsche Wohnen: Major German residential property company, now part of Vonovia, focused on the Berlin metropolitan area and adjacent regions. A broad incumbent in residential development and management, comparable in end-market exposure but operating at substantially larger scale than IHR HAUS.

Direct peers

• WeberHaus: German family-owned manufacturer and builder of energy-efficient (Plus-Energy) prefabricated and solid-construction turnkey homes. Comparable to IHR HAUS on Massivbau construction, energy efficiency standards and direct-to-buyer sales, though with stronger prefab/manufacturing orientation.
• Bonava: Swedish-origin listed developer with a major German footprint (Berlin, Hamburg, Rhine-Main), building multi-family and townhouse projects for sale to private buyers. Closely comparable to IHR HAUS on for-sale residential development on conversion and greenfield sites, though at meaningfully larger scale.
• Town & Country Haus: Largest German franchise-based mass homebuilder of standardised single-family and terraced houses, sold direct to private buyers with fixed pricing and guaranteed completion dates. Direct comparator on the turnkey Schlüsselfertig value proposition IHR HAUS offers in the single-family segment.
• Streif Group: German mass-market residential builder of turnkey single-family and terraced houses, with a comparable Schlüsselfertig model and emphasis on energy-efficient (KfW) standards. Direct peer in the mid-market turnkey segment IHR HAUS serves.
• Heinz von Heiden Massivhäuser: One of Germany's leading Massivbau residential developers, building turnkey single-family, semi-detached and terraced houses nationwide with a similar digital warranty and fixed-price positioning. Very direct competitor to IHR HAUS's core product offering.
• Instone Real Estate Group: German listed residential developer focused on the development and sale of multi-family and mixed-use projects in German metropolitan areas. Comparable business model to IHR HAUS but concentrated in larger inner-city projects and serving a different buyer mix (often yield-driven).
• Bien-Zenker: Established German prefabricated homebuilder (part of WeberHaus group) producing turnkey single-family and terraced houses across Germany. Comparable on the Schlüsselfertig model, energy standards, and direct-to-buyer distribution, although with a heavier prefab manufacturing tilt.

Regional players

• Allbau / Rheinwohnungsbau (Bauverein): Regional NRW-based residential developer and property manager serving North Rhine-Westphalia. Comparable as a peer in IHR HAUS's home market of Greven/Münsterland, with overlapping turnkey single-family home product but a stronger rental portfolio orientation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/ihr-haus-sahle-massivbau-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 IHR HAUS Sahle Massivbau GmbH