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



On this page you will find an excerpt of our references. We will be happy to provide you with further project examples on request.
We always feel supported.

The main reason is the fast implementation.

Optimal support for any sustainable real estate strategy

- 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.

- 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.

- 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.

- 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.
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.