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United Kingdom property intelligence platform
Property Performance Operating System™
Property Performance Operating System™ is the Make My Home Energy Efficient platform concept for turning Energy Performance Certificates, energy efficiency advice, compliance planning, exemption guidance, portfolio tracking and evidence storage into one guided experience.
It is designed to be simple enough for homeowners, practical enough for landlords and structured enough for investors who need to compare property performance, improvement potential and evidence over time.
The MHEE Property Intelligence Platform uses publicly available EPC data where available together with information provided by the user to generate advisory analysis, recommendations and improvement planning. Results are based on actual EPC data where available but do not constitute a new EPC assessment or official EPC certificate. Where an official EPC assessment is required, this can be arranged through Make My Home Energy Efficient.
Exemption guidance is advisory only. A professional exemption evidence review should only be considered after applicable measures have been installed, evidence has been collected, a post-improvement EPC reassessment has been completed, and the property remains below EPC C.
From Energy Performance Certificate to Property Performance Operating System
A standard Energy Performance Certificate service usually ends when the certificate is produced. The Property Performance Operating System extends the journey into interpretation, roadmap planning, compliance support, evidence storage and long-term property tracking.
The Property Performance Operating System™ changes the customer journey from a one-off certificate into a long-term property intelligence record.
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Assessment
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Intelligence
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Roadmap
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Compliance
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Evidence
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Long-term Passport
The property becomes the long-term focus, not just the person who happens to own or manage it at a single point in time.
Property Performance Operating System modules
These platform modules connect Energy Performance Certificate insight, energy advice, exemption evidence preparation, portfolio tracking and long-term records into one guided experience.
Property Energy Story™
Explains what the property is telling us through comfort issues, energy use, Energy Performance Certificate results and improvement potential.
Energy Performance Certificate Insight Review™
Looks behind the Energy Performance Certificate rating to understand current position, recommendations and strategic next steps.
Energy Performance Certificate Opportunity Score™
Indicates how much meaningful improvement potential may exist within the property.
Property Efficiency Roadmap™
Turns recommendations into a phased plan from low-cost optimisation to long-term upgrades.
Comfort Performance Index™
Connects energy performance with how the home actually feels day to day.
Compliance Navigator™
Shows the route from current Energy Performance Certificate position to future planning, compliance actions and supporting evidence.
Exemption Intelligence Engine™
Organises post-improvement evidence where installed measures and reassessment still leave a property below EPC C.
Portfolio Intelligence™
Helps landlords and investors prioritise properties by risk, urgency, improvement potential and likely benefit.
Evidence Vault™
Organises Energy Performance Certificates, reports, photos, quotes, invoices and evidence so decisions can be supported later.
Property Energy Passport™
Creates the vision for a continuous property performance record that stays focused on the property over time.
Property Energy Passport
The most powerful shift is treating the property as the long-term customer. The record stays focused on the building, even as owners, landlords, tenants or managing agents change.
Property Energy Passport™ is the long-term vision for a permanent digital performance record for the property.
Instead of treating energy performance as a certificate every ten years, the passport treats it as a continuous property record.
Energy Performance Certificate history
Improvement history
Photos
Quotes
Invoices
Recommendations
Compliance status
Exemption records
Roadmaps
Comfort scores
Energy Performance Certificate Digital Twin
A simplified energy model can help clients test likely improvement scenarios before spending money on works.
Energy Performance Certificate Digital Twin™ is a simplified energy model, not a CAD model. It helps property owners test likely improvement scenarios before committing money.
Current position
D61
Baseline Energy Performance Certificate position
Loft insulation
D66
Predicted improvement scenario
Heating controls
D68
Controls and optimisation scenario
Cavity wall insulation
C72
Fabric improvement scenario
Compliance Navigator and Exemption Intelligence
Landlords often need clarity across Energy Performance Certificate, Minimum Energy Efficiency Standards, possible constraints, improvement routes and supporting evidence. The system is designed to act like a sat-nav for practical property compliance planning.
Current position
Understand the latest Energy Performance Certificate, rating, known recommendations and areas of uncertainty.
Destination
Identify the practical direction for compliance planning, comfort, value or investment decisions.
Route
Create a phased pathway with actions, supporting evidence and review points.
Exemption Intelligence Engine™ helps landlords organise the post-improvement evidence that may matter after suitable measures have been installed and a reassessment still leaves the property below the required standard.
This is guidance only. It is not legal advice, not a legal determination and not a decision on any exemption pathway.
Existing Energy Performance Certificate position
Property type and constraints
Installed measures and supporting evidence
Post-improvement reassessment status
Whether the reassessed property remains below target
Portfolio Intelligence and Energy Investment Score
For landlords and investors, the key question is often not just what the Energy Performance Certificate says, but where attention and budget should go first.
Portfolio Intelligence Engine™ helps landlords and investors compare properties by risk, urgency, opportunity and likely return from improvement activity.
Priority view
Highest Priority -> Lowest Priority
Useful for portfolio planning where budget, timing and compliance risk need to be balanced.
Energy Investment Score™
A practical lens for answering the question: where should the next pound be spent?
Energy Performance Certificate impact
Comfort impact
Cost sensitivity
Property value influence
Rental attractiveness
Evidence Vault
Compliance and property performance decisions are easier to defend when the evidence is organised: Energy Performance Certificates, reports, photos, quotes, invoices, roadmaps and review notes.
| Capability | What it creates | Why it matters |
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| Property Energy Passport™ | Continuous property performance record | Useful for owners, buyers, landlords and future planning |
| Energy Performance Certificate Digital Twin™ | Scenario modelling before money is spent | Helps compare likely improvement routes |
| Compliance Navigator™ | Current position, destination and practical route | Helps landlords plan ahead with clearer evidence |
| Evidence Vault™ | Organised record of Energy Performance Certificates, reports, quotes, invoices and photos | Supports future decisions and compliance conversations |
Eight advisory frameworks
Each framework gives a different lens on property performance, from comfort and value through to landlord readiness and investment opportunity.
Property Energy Story™
Understand what cold rooms, high bills, draughts, condensation, poor Energy Performance Certificate ratings and uneven comfort are telling you about a property.
Energy Performance Certificate Insight Review™
Look beyond the headline Energy Performance Certificate rating and understand the current position, accuracy, missed opportunities and strategic next steps.
Energy Performance Certificate Opportunity Score™
An advisory scoring framework that indicates how much meaningful improvement potential a property may have.
Property Efficiency Roadmap™
Turn Energy Performance Certificate and energy efficiency advice into phased action, from quick optimisation through to long-term transformation.
Energy Value Score™
Determine whether an improvement is likely to be worthwhile by balancing financial, comfort, property, tenant and environmental value.
Comfort Performance Index™
Measure likely comfort levels using cold rooms, drafts, condensation, moisture, ventilation and uneven temperatures.
Landlord Readiness Review™
Assess landlord preparedness across Energy Performance Certificate position, improvement potential, compliance preparedness and investment requirements.
Investor Energy Intelligence™
Assess investment potential using Energy Performance Certificate position, improvement potential, estimated uplift opportunity and relative attractiveness.
Property Energy Story
Property Energy Story™ helps clients understand what their property is telling them through cold rooms, high bills, draughts, condensation, poor Energy Performance Certificate ratings and uneven comfort.
Output: Property Energy Story™ Report. A clear summary of why the property performs the way it does and where attention is most likely to be useful.
Building Fabric
Heating & Hot Water
Ventilation & Moisture
Occupancy & Usage
Improvement Potential
Energy Performance Certificate Insight Review
Energy Performance Certificate Insight Review™ explains what sits behind an Energy Performance Certificate rating, so clients can understand the current position, assess the detail and choose a practical direction.
Output: Energy Performance Certificate Insight Review™ Report covering current Energy Performance Certificate position, assessment detail and strategic guidance.
Current Position
- Energy Performance Certificate rating
- Energy Performance Certificate score
- Existing recommendations
Assessment
- Accuracy
- Missed opportunities
- Property-specific factors
Strategic Guidance
- Quick wins
- Medium investments
- Major projects
Energy Performance Certificate Opportunity Score
Energy Performance Certificate Opportunity Score™ is our advisory scoring concept for measuring how much improvement potential a property may have.
Output: Energy Performance Certificate Opportunity Score™. This is our own advisory framework, not an official Energy Performance Certificate rating.
Building Fabric
25 points
Heating
25 points
Controls
15 points
Ventilation
15 points
Renewable Potential
20 points
0-25
Low Opportunity
26-50
Moderate Opportunity
51-75
High Opportunity
76-100
Exceptional Opportunity
Property Efficiency Roadmap
Property Efficiency Roadmap™ provides a practical improvement pathway from current Energy Performance Certificate position to target Energy Performance Certificate position.
Current Energy Performance Certificate
D61
Phase 1 - Optimise
0-6 months
Low-cost actions
D66
Phase 2 - Improve
6-24 months
Medium investment measures
C71
Phase 3 - Transform
2-10 years
Major upgrades
C74
Output: visual roadmap. Example progression: Current D61 -> Phase 1 D66 -> Phase 2 C71 -> Phase 3 C74.
Energy Improvement Return On Investment Calculator
The calculator feeds into Property Efficiency Roadmap, Energy Value Score, Landlord Readiness Review and Investor Energy Intelligence by showing whether an improvement may make financial sense.
Start with the property
Energy Value Score
Energy Value Score™ helps determine whether an improvement is likely to be worthwhile by weighing financial value, comfort value, property value impact, tenant appeal and environmental benefit.
Output: Bronze, Silver, Gold or Platinum. This is a proprietary advisory methodology developed by Make My Home Energy Efficient. It is not an official Energy Performance Certificate rating.
Financial value
Comfort value
Property value impact
Tenant appeal
Environmental benefit
Bronze
Silver
Gold
Platinum
Comfort Performance Index
Comfort Performance Index™ links energy performance to the way a home actually feels. It reviews thermal comfort, draught risk, moisture and condensation, and heating controls to create a simple advisory comfort score from 0 to 100.
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Thermal Comfort
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Draught and Air Leakage
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Moisture and Condensation
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Heating Controls
Poor
Fair
Moderate
Good
Excellent
Output: Comfort Performance Index™ from Poor to Excellent.
Comfort Outlook™
Comfort Performance Index™
An advisory comfort indicator based on property information, reported comfort issues and Energy Performance Certificate data where available.
55/100
Moderate
Main issues
- Cold rooms or uneven temperatures
- Draught and air leakage risk
- Condensation or moisture risk
- Limited heating controls
Likely causes
- Heat loss through the building fabric
- Loft insulation may need review
- Ventilation may not be balancing moisture well
- Heating controls may be too basic
Suggested first actions
- Review insulation and heat-loss areas
- Check loft insulation depth
- Check draughts around windows and doors
- Consider ventilation improvements
- Review heating controls
The Comfort Performance Index™ is an advisory comfort indicator. It is not an official Energy Performance Certificate rating and does not replace an on-site property assessment.
Landlord Readiness Review
Landlord Readiness Review™ helps landlords understand how prepared a property or portfolio may be by reviewing Energy Performance Certificate position, improvement potential, compliance preparedness and investment requirements.
| Review area | What it helps clarify |
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| Current Energy Performance Certificate position | Priority, timing and practical next steps for landlord planning. |
| Improvement potential | Priority, timing and practical next steps for landlord planning. |
| Compliance preparedness | Priority, timing and practical next steps for landlord planning. |
| Investment requirements | Priority, timing and practical next steps for landlord planning. |
Ready
Developing
Improvement Required
Strategic Upgrade Recommended
Output: Landlord Readiness Review™ from Ready to Strategic Upgrade Recommended.
Investor Energy Intelligence
Investor Energy Intelligence™ helps property investors look beyond the headline Energy Performance Certificate rating and assess investment potential through Energy Performance Certificate position, improvement potential, estimated uplift opportunity and relative attractiveness.
Energy Performance Certificate position
Improvement potential
Estimated uplift opportunity
Relative attractiveness
Low Potential
Moderate Potential
Strong Potential
Exceptional Potential
Output: Investor Energy Intelligence™ from Low Potential to Exceptional Potential.
Which framework fits your situation?
The system is flexible. Different clients need different levels of explanation depending on their property, goals and decisions.
| Audience | Primary framework | Main outcome |
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| Homeowners | Property Energy Story™ | Comfort and practical improvements |
| Energy Performance Certificate clients | Energy Performance Certificate Insight Review™ | Understanding the rating behind the certificate |
| Landlords | Landlord Readiness Review™ | Planning compliance and investment priorities |
| Investors | Investor Energy Intelligence™ | Identifying opportunity before purchase |
Framework Frequently Asked Questions
Are these official Energy Performance Certificate ratings?
No. The Make My Home Energy Efficient frameworks are proprietary advisory methodologies developed by Make My Home Energy Efficient. They are separate from official Energy Performance Certificate ratings and certificates.
Do the frameworks replace an Energy Performance Certificate assessment?
No. An Energy Performance Certificate assessment produces the official certificate. The frameworks help explain performance, opportunity and practical next steps around that information.
Why use a framework instead of just reading the Energy Performance Certificate?
A certificate gives useful data, but many clients need help interpreting what sits behind the rating and where action may be worthwhile.
Is Exemption Intelligence legal advice?
No. Exemption Intelligence is advisory guidance only. A professional exemption evidence review should only be considered after applicable measures have been installed, evidence has been collected, a post-improvement EPC reassessment has been completed, and the property remains below EPC C.
Next step
Ready to apply the system to a real property?
Start with an Energy Performance Certificate assessment, Property Energy Story, Energy Performance Certificate Insight Review or Property Efficiency Roadmap.
Book Energy Performance Certificate AssessmentRun Free Energy Performance Certificate Opportunity ScoreRequest Property Energy StoryRequest Energy Performance Certificate Insight ReviewBuild My Property Efficiency Roadmap