Energy-efficient renovation of a listed Wilhelminian-style building
Comprehensive support for energy-efficient modernization in historic buildings
Energy saving
50 %
A+
A+
A+
A
A
A
B
B
B
C
C
C
D
D
D
E
E
E
F
F
F
G
G
G
H
H
H
Refurbishment and transformation of existing buildings
Our expertise lies in the sustainable refurbishment and transformation of residential and commercial buildings from 4 residential units upwards. Here you will find a selection of successfully completed projects – contact us if you would like to find out more.
Sustainability that pays off
Building type
Project type
12 References
Newest first
Turn your building into the
next success project
Get an immediate assessment of your building's potential:
Energy efficiency, CO₂ savings and financial benefits at a glance.
Energy efficiency, CO₂ savings and financial benefits at a glance.
Optimization potential
High
Your building is in a critical condition. Urgent action saves costs and risks.
Optimization potential
Medium
Your building has medium potential. You can increase efficiency and value with targeted measures.
Optimization potential
Low
Your building is already efficient - but there is further potential for optimization."
On this page you will find an excerpt of our references. We will be happy to provide you with further project examples on request.
Optimal support for any sustainable real estate strategy
For real estate funds
- Efficient ESG implementation: Assisting you in complying with ESG standards and regulatory requirements.
- Increasing profitability: Optimizing the profitability of your real estate portfolio.
- Integrated strategies: Providing you with support from acquisition through refinancing to sustainable optimization.
- Focus on long-term success: Economically suitable measures for sustainable results.
For private owners
- Individual solutions: Tailored strategies for keeping, selling or acquiring real estate.
- Securing subsidies: Supporting you in applying for funding and complying with regulatory requirements
- Increase energy efficiency: We develop measures to reduce energy requirements and optimize the energy class of your property.
- Sales promotion: Targeted refurbishment measures to increase the value and improve refinancing opportunities.
For real estate agents
- Our Energy Light Report enables a more efficient and accelerated purchasing, selling and financing process.
- It analyzes the current energy status of a building. With just a few entries, the building is classified in a potential group.
- The Energy Light Report provides a clear recommendation and simulates various energy-related packages of measures, including costs and possible subsidies.
- The result shows the possible changes in the energy efficiency classes for each case.
Property owner associations and asset managers
- Efficient energy measures: We provide support in the planning and implementation of refurbishment projects.
- Long-term ESG strategies: We develop and implement sustainable concepts.
- Technical expertise: Clearly structured sets of measures and transparent reporting.
- Optimized processes: Efficient collaboration for sustainable success - regardless of the size of the portfolio.
What our customers say
Continuous support in all project phases
The project on Rotkehlchenweg required a good balance to reconcile economic refurbishment, rental yields at a social level and a continuously occupied portfolio. Over the course of two years, we worked intensively with Purpose Green through all the ups and downs of a project. We particularly appreciated the continuous support in all project phases: Whether it was energy consulting, subsidies or structural implementation, Purpose Green provided support with the right experts in every situation. Decisions were made pragmatically without losing sight of the overall economic objective. The fact that we received all services from a single source, including sensitive tenant communication, was a real advantage for us.
Becker & Kries
Andreas Liebheit
Structured and reliable project management was crucial for us.
The renovation of Baumschulenstraße 103 was challenging in several respects: an occupied building, sensitive use by the daycare center in the courtyard, and a clear timeframe for weatherproofing the building envelope before winter. The decisive factor for us was structured and reliable project management that combined technical quality, cost-effectiveness, and consideration for the users. Purpose Green accompanied the project from start to finish, from planning and energy and subsidy consulting to construction management. Particularly noteworthy are the stringent organization, the flexible adaptation of the project structure during implementation, and the consistent quality assurance. The implementation within six months while adhering to the budget and subsidy strategy contributed significantly to the successful realization of the project.
GrosGeMüRöSch LLC
Dr. Jürgen Schwemmer
Structured planning with a secure funding strategy
Purpose Green provides expert support for energy-efficient renovation projects with a high level of technical expertise. The combination of precise energy planning, reliable quality assurance, and a clearly structured subsidy strategy is particularly beneficial for the project. The advice provided is always transparent, legally compliant, and economically oriented, especially when it comes to the successful integration of subsidy programs.
Stella Partners
Etienne Colak
About Purpose Green
We make ESG in real estate a win-win for everyone.
Your property - our next project!
We look forward to hearing from you.
Purpose Green is a Berlin-based climate tech company transforming the real estate sector with comprehensive, end-to-end decarbonization solutions. Founded in 2023 by Okitonga Memba and brothers Lucas and Lennart Christel, Purpose Green leverages deep industry expertise to enable the development of sustainable, energy-efficient buildings. The company specializes in tailored refurbishment and energy consulting, supporting property owners, managers, and institutional funds in transforming multi-family, residential, and commercial buildings, as well as office buildings, into environmentally friendly, future-proof properties.
Purpose Green works at both the single-property and portfolio levels, offering innovative solutions to achieve individual sustainability goals. Backed by leading early-stage investors such as Speedinvest, Atlantic Labs, and Fifth Wall, Purpose Green is driving significant change in real estate sustainability and shaping a greener future for the built environment.