Turning Climate Obligation into Business Opportunity

Reneo is a leading asset and investment management platform for manage-to-green strategies. Since 2019, we have been unlocking the full potential of real estate assets with institutional partners.

As a tech-enabled asset manager, we combine a fully digitalised investment approach with inhouse expertise in green building transformations to systematically convert stranded assets into sustainable portfolios.

Our Asset & Financing Partners

Build a Green Portfolio with Us

As a leading asset manager for manage-to-green strategies for residential real estate, we understand the challenges of institutional investors across the entire risk spectrum – from the value-add to the core segment. We provide tailor-made solutions for both the transformation of existing portfolios and new investments as part of brown-to-green strategies.

Existing Portfolios

We support institutional investors with a holistic asset management approach for the development of existing residential real estate portfolios. Our focus lies on energy-efficient modernisation, vertical expansion, and densification, as well as repurposing and space optimisation.

This way, we increase asset value while lowering operating costs for both owners and tenants, improving living quality, reducing CO₂ emissions, and creating additional housing. Ultimately, stranded assets are IRR-positively converted into Article 8/9-compliant portfolios.

For asset holders, we initially conduct portfolio scans to identify potential and provide advisory on financing, fund and investment structures, risk management, and exit strategies.

Asset yield optimisation

New Investments

As an operating partner for institutional investors, we build sustainable residential portfolios through a brown-to-green investment strategy. We actively source, acquire, transform, and manage assets with significant development potential.

Investment opportunities are shared with partners in real-time via our investor portal, aligned with pre-defined buy boxes such as Value-add, Core+ or Core. We orchestrate the entire transaction process from due diligence to successful closing.

Our flexible partnership models include programmatic joint ventures, asset-specific club deals, and individual deal-by-deal structures.

Brown-to-green investment

Maximise Asset Value and Green Space

Increase asset value

By systematically enhancing the energy efficiency of assets, our solutions reduce emissions while boosting overall asset value by 30-70 %.

Create living space

Through vertical expansion, densification, and space optimisation, we create modern, energy-efficient homes that cater to the growing urban demand.

Increase energy efficiency

Our measures enable a reduction in energy consumption of 30-60 %, significantly lowering operational costs for asset owners and tenants.

Meet sustainability goals

Our transformed buildings comply with EU Taxonomy and CREEM standards, ensuring they meet current regulatory requirements of institutional investors.

Holistic Asset Management Approach for the Sustainable Transformation of Real Estate

Investment

We analyse existing portfolios or new opportunities for manage-to-green or value-add potential through energetic modernisation or building extension, tailored to all investment profiles. We find the optimal combination of measures, subsidies, and debt financing.

Transformation

Our scalable approach is based on a standardised transformation, enabling the efficient modernisation of even complex existing portfolios. As owner’s representatives, we coordinate all measures and ensure maximum cost control.

Asset Management

Our experienced team expertly manages assets, using our proprietary software as orchestration layer, to realise full value potential of assets and ensure smooth modernisation of occupied buildings with minimal disruption.

Our Exclusively Developed Asset Management Software for a Digitally Orchestrated Asset Lifecycle

Transform the Future of your Portfolio

Standardised and Systematic
Manage-to-Green Approach for Scalable Building Transformation

Nationwide Partner Network

securing capacities of local subcontractors

Construction under 12 months

enabled by standardised and systematic processes

Sustainable Materials

with minimal use of adhesives and glues

Cost Efficiency

streamlined modernisation measures, combined with KfW subsidies

High Energy Efficiency

achieving KfW EH-55 EE standards post-modernisation

Minimal Tenant Disruption

through active communication and concerted measures

Lean Project Management

with fully integrated end-to-end approach

Cost Transparency

through real-time capex tracking

Decarbonising Real Estate and Boosting Value with Reneo

Our case studies prove how decarbonising buildings and apartments can not only contribute to sustainability but also enhance the asset value.

Transformation rooted in tradition

Originally built in 1956, this four-story multi-family house in Hamburg is a testament to classic architecture, featuring a durable brick facade and 24 residential units with an average size of 62 m².

Future-ready makeover

Through a sustainable transformation, this property could be revitalised to meet modern energy standards while preserving its historic charm. By implementing underlying measures, a remarkable 63 % reduction in energy consumption could be achieved, alongside utility cost reduction of 1.16 €/m² and an estimated 35.5 % return on CAPEX investment. The envisioned project would create efficient, comfortable living and workspaces, delivering long-term value for both occupants and the community.

Carbon savings
(lifetime)

2.511 t

Energy savings
(lifetime)

10.575.912 kWh

CAPEX/m² total
(excl. VAT + fee)

1.144 €/m²

Value increase

128 %

1950s Post-War Construction

Built in 1959, this estate displays the typical building style of the 50s in Germany. As a multi-family house contains 24 residential units averaging 66 m² each and is located in a prime area of Berlin, boasting a great RIWIS location rating.

Sustainable upgrade

Leveraging its historic character, the building could be transformed into a modern, energy-efficient space while retaining its original charm. Achieving an impressive 67 % reduction in energy consumption is a realistic, while utility costs could be cut by 1.41 €/m², and the project would deliver a 41.2 % return on CAPEX investment. The revitalised property would offer high-quality, sustainable living and commercial environments tailored to urban lifestyles.

Carbon savings
(lifetime)

2.816 t

Energy savings
(lifetime)

12.048.600 kWh

CAPEX/m² total
(excl. VAT + fee)

950 €/m²

Value increase

137 %

Early 20th Century Building Substance

Built in 1900 in Düsseldorf, this multi-family houses showcases the charm of pre-war architecture. Featuring a natural stone façade, a double-windowed roof, 12 residential units, and an average living space of 35 m², this property embodies the architectural charm typical of the Rhine-Main region in Germany.

Modern transformation

Through a comprehensive transformation, these buildings could be updated to meet contemporary living standards while preserving their historic appeal. The project would be likely to achieve a 78 % reduction in energy consumption, alongside cutting utility costs by 2.43 €/m², and delivering an impressive 40.61 % return on CAPEX investment. These upgrades ensure efficient, comfortable spaces for residents and businesses, securing long-term sustainability and value in one of Berlin’s most iconic neighborhoods.

Carbon savings
(lifetime)

1.444 t

Energy savings
(lifetime)

6.341.650 kWh

CAPEX/m² total
(excl. VAT + fee)

1.410 €/m²

Value increase

143 %

Dated Urban Appeal

With a construction date back in 1970, this timeworn apartment in the west of Hamburg spans 95 m². With 3.5 rooms and a balcony, the property offered basic functionality but lacked modern features and energy efficiency, which is typical for that construction era.

Eco-Driven Living

Through a comprehensive modernisation following the Eco-Standard, the apartment now features smart thermostats, optimised heat circulation via a floor station, a smart home controller, and energy-efficient LED lighting. These upgrades are likely to achieve a 25 % reduction in energy consumption, cut utility costs by 1 €/m², and deliver an impressive 16.35 % return on CAPEX investment. The upgrades enhance sustainability and comfort, creating a modern living space that meets standards and adds value.

*This case study shows average apartment metrics , which can not be used to derive estimates for comprehensive buildings.

Carbon savings
(lifetime)

87 t

Energy savings
(lifetime)

231.203 kWh

CAPEX/m² total
(excl. VAT + fee)

833 €/m²

Value increase

131 %

Our Nationwide Footprint of Experts and Partners

As a pioneer for brown-to-green investment solutions, we have been working with industry-leading partners to set the course for a greener future in the German real estate industry since 2019.

Founding year

2019

Units renewed

1000

Transaction volume

600

Investment capital

700

Reneo employees

100

Our Asset & Financing Partners

t

Our ESG Partners

Our Investors

Get to Know Our Founder Team

Our founders share a vision for transforming industries through innovation and impact. With complementary expertise and a commitment to excellence, they ambitiously lead the way in driving our mission forward.​

Lennart Börner

Lennart Börner

Founder & Co-CEO

Lennart Börner is Founder & Co-CEO of Reneo, the leading platform for the decarbonisation of residential real estate in Germany. Lennart began his career in restructuring before becoming one of the first employees to join Kreditech, a digital lending platform that he built up worldwide together with his current co-founder under the motto “Banking the Underbanked”. At the same time, he founded a medium-sized real estate company, the sale of which in 2019 provided the impetus for today’s Reneo Group. Lennart holds a Bachelor’s degree from the European Business School (EBS) in Oestrich-Winkel and a Master’s degree from the University of St Andrews.

Alexander Graubner-Müller

Alexander Graubner-Müller

Founder & Co-CEO

Alexander Graubner-Müller is Founder & Co-CEO of Reneo and exhibits over 15 years of experience in the software and technology sector. With his extensive knowledge in building and scaling fast-growing digital companies,  Alexander previously co-founded Kreditech, one of the first fintech companies, where he served as CTO and CEO from 2012 to 2018. Under his leadership, Kreditech has grown to more than 850,000 customers, 400 employees and 70 million euros in annual revenue and has secured more than 500 million euros in funding from leading investors around the world. Alexander holds a double degree in Business Administration and Economics from the University of St. Gallen, with specialisations in Computer Science and Financial Mathematics from the Swiss Federal Institute of Technology Zurich.

Career with Reneo

We are more. As a tech-enabled real estate asset manager, we at Reneo made it our mission to leave our mark and pave the way to a sustainable future in the building sector. With out brown-to-green investment approach, we specialise in the decarbonisation of residential properties, making a meaningful contribution towards achieving global climate goals.​

Hafen-Hamburg

We are always on the lookout for exceptional professionals with unique skills and talents to bring fresh perspectives to our team. If you are passionate about driving value for institutional clients, developing innovative software solutions or transforming the building sector, Reneo is the perfect place for you. Join us on our journey to make the world a little greener and more sustainable!

Get in Touch, and Start Shaping the Future of Real Estate