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
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D
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E
E
E
F
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G
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Green+ Portal for Asset and Portfolio Management
When data becomes decisions
Digital ESG analysis and restructuring scenarios on a single platform
Energy analysis of individual buildings, including energy efficiency rating and renovation potential
Simulation of action plans with calculations of costs, funding, and ROI
Portfolio overview with ESG metrics, decarbonization pathway, and investment management
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Detailed analyses for individual properties
At the asset level
Initial energy assessment at the touch of a button
With just a few inputs, the Energy Light Report provides an accurate initial assessment of the energy efficiency of individual properties and their energy-saving potential within seconds
Clear forecast regarding the CO₂ cost pass-through to tenants
Recommended measures to improve the energy efficiency rating
Estimated renovation costs and funding opportunities
At the asset level
Real-time 3D simulation of renovation scenarios
The Energy Measures Configurator enables flexible planning of renovation measures and calculates their impact in real time.
Custom combinations of energy-saving measures such as insulation, heating systems, or window replacement
Automatic calculation of the impact on costs (CAPEX), ROI, potential for subsidies, CO₂ reduction, and modernization costs
Visual presentation of the results in a 3D model to provide a clear and reliable basis for decision-making
At the asset level
Construction Site Report – Your Digital Window into Construction Progress
Keep track of your renovation project at all times. Our construction site report consolidates complex construction progress data into an intuitive overview. From project launch and securing funding to the completion of all construction work—we make progress measurable and successes visible.
Focus on real-time status: Track overall completion rates and the status of individual trades
Interactive Schedule Analysis: Monitor critical phases and milestones directly in the Gantt chart view – keep track of target dates
Key Responsibilities: See at a glance who is managing the project and access important documents directly
At the PORTFOLIO level
Portfolio Dashboard
Aggregated energy and emissions KPIs, hotspots, and risks across all assets, so decisions no longer get stuck in data silos.
Holistic Overview – Key financial and energy KPIs across all assets at a glance
Benchmarking & hotspot identification to immediately identify the biggest opportunities in the portfolio
Risk and cost projections, including regulatory developments and stranding risks
At the PORTFOLIO level
Portfolio Strategy
Compare strategic options, simulate their impact and investment requirements, and prioritize actions based on clear objectives.
Scenario maps for standardized strategy paths, ranging from maximum standards to minimum compliance
CAPEX and performance comparison for informed decisions at the C-suite and portfolio management levels
Goal Tracking & Progress for Net-Zero Pathways, Including Prioritization by Impact, Risk, and Cost-Effectiveness
These companies are already successfully using the Green+ Portal
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What our customers say
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.
Etienne Colak
Partner & Managing Director
Stella Partners
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.
Etienne Colak
Partner & Managing Director
Stella Partners
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.
Dr. Jürgen Schwemmer
Managing Partner
GrosGeMüRöSch LLC
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.
Andreas Liebheit
Head of New Construction and Technology
Becker & Kries
≤84
%
of savings in the final energy demand
≤35
%
Funding for individual projects
84
%
Digital project planning
≤30
%
Increased Value Through Renovation
Experience the Green+ Portal live now
Schedule a no-obligation appointment for a personalized demo at
and analyze your first property for free.
Make an appointmentand analyze your first property for free.
Additional burden on owners of unrenovated buildings
Starting in 2028, the CO2 price for fossil-
e heating systems will rise sharply by more than 600%
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Find out more about your options by speaking with our experts at
, or take the CO2 cost check.
, or take the CO2 cost check.
CO₂ Transparency in "
" with just a few clicks
Just a few details are needed: Receive a free PDF via email showing the annual breakdown of CO₂ costs between tenant and landlord, as well as a forecast of your property’s value appreciation.
* Note: A quote can be provided for total areas of 350 m² or more.
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CO₂ Cost Calculator
Wilhelm-Stolze-Strasse 18
10249, Berlin
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Building type
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Total area
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Energy source
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thereof commercial
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Year of construction
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of which residential
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Optimization potential
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All information and recommendations presented in this report are based on a preliminary analysis of the data provided and do not replace a detailed on-site inspection of the property by Purpose Green experts. We reserve the right to make changes to the calculations and the actual energy status shown.
Energy requirements
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CO₂-intensitykg CO₂-equ./m²
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Energy intensityin kWh/(m²a)
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Emissions inin kg CO₂-equ./a
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Total energy requirement in kWh/a
Energy consumption
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Energy intensityin kWh/(m²a)
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Energy efficiency class
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EPC date
The following calculation of potential is based on the property data entered and the simplified calculation of requirements.
Fill out the form to receive your personalized forecast as a PDF
All fields are required.
Successful Projects
From Analysis to Strategy
The results of the digital analysis form the basis for customized renovation roadmaps
developed by our ESG experts on-site.
Our Planning Servicesdeveloped by our ESG experts on-site.
Up-to-date information on the topic of renovation in the "
"
FAQs
How can Purpose Green be contacted?
You can reach Purpose Green via the contact form on the website or directly by e-mail to support@purpose-green.com. Alternatively, you can also book a free initial consultation via our website.
Which types of real estate does Purpose Green manage?
We manage residential buildings and mixed-use properties with 4 or more residential units, as well as non-residential buildings and commercial properties, including listed buildings.
Who is Purpose Green suitable for?
Purpose Green specializes in serving owners and investors of investment properties who want to implement energy-efficient renovations in a cost-effective manner—from individual apartment buildings to large portfolios.
We support property owners, asset managers, and institutional investors—from the initial energy assessment through renovation planning to full implementation—with solutions that are scalable for both individual properties and large portfolios.