EPC Portfolio
We take immense pride in collaborating with exceptional landlords, agents, and asset managers throughout London's diverse property landscape. Our focus is to deliver precise Energy Performance Certificates (EPCs) across the spectrum of non-domestic buildings in London, from glittering offices in The City, to Churches and community centres, Industrial sites and world class restaurants.
Here are a few of our favorite EPC surveys
Units 3 & 5, Crompton Way, Carawley
Size: 4,488 sqm
Type: B8 and B1 Warehouse and offices
Address: Units 3 and 5 Crompton Way, Crawley, RH10 9QR
EPC A
Case Study: Crompton Way, Crawley
Engineering an EPC 'A' Rating Through Integrated Building Physics and HVAC Excellence
Project Overview
This project involved the final as-built energy assessment for the industrial units at Crompton Way, Crawley. Originally designed as separate spaces, Units 3 and 5 were merged into a single high-specification facility. Appointed by Space Workplace (spaceworkplace.com), the objective was to secure an EPC 'A' rating under the rigorous Part L 2021 Building Regulations.
The Challenge
Achieving the highest energy grade for a large-scale industrial merge requires a delicate balance between a high-performance building envelope and sophisticated mechanical systems. The project demanded a turnaround from raw as-built data to final lodgement in just one week, necessitating flawless coordination with the Space Workplace Project Manager to verify every technical detail.
The Solution: Integrated SBEM Modelling
Using the SBEM (Simplified Building Energy Model) framework, we performed a granular analysis of how the building’s fabric interacted with its advanced HVAC systems.
1. High-Efficiency HVAC & MVHR Systems
The cornerstone of the building’s energy strategy was the deployment of advanced mechanical services:
Heat Pump Technology: The offices are served by a Daikin VRV IV heat recovery system (REYQ series), providing simultaneous heating and cooling with COPs exceeding 3.6 and SEERs above 5.
Mechanical Ventilation with Heat Recovery (MVHR): To provide fresh air while minimising energy loss, we modelled Daikin VAM heat reclaim ventilation units. These units achieve a thermal efficiency of up to 82.5%, significantly reducing the load on the primary heating and cooling plant.
Low Specific Fan Power: Every fan in the system, from the Systemair extract units to the MVHRs, was verified to meet strict Part L limits, further driving down auxiliary energy consumption.
2. Bespoke Thermal Mass (Km) Calculations
To ensure the SBEM model accurately reflected the building’s dynamic thermal response, we calculated bespoke Km values (thermal capacity) for the as-installed materials:
Warehouse Lining: Modelled using 0.7mm steel internal liners (~2.47 kJ/m2K).
Office Partitions: Accounted for the thermal inertia of 15mm acoustic plasterboard (IW-1.0) on the core separating walls (~12.6 kJ/m2K).
3. Superior Fabric & Renewables
Airtightness Excellence: The building achieved a remarkable air permeability of 1.44 m³/(h.m²) @ 50Pa, far outperforming the design target.
Glazing Performance: The Comar 6EFT curtain walling achieved an as-built U-value of 1.2 W/m²K, with a solar factor (g-value) of 0.43 to manage internal gains.
Solar PV Integration: Substantial solar arrays—13.5kWp and 36kWp—were integrated into the final model to offset carbon emissions and secure the 'A' rating.
The Outcome
The synergy between the high-performance building envelope and the high-efficiency heat pump and MVHR systems was decisive. By leveraging precise data provided by Space Workplace, the project was delivered on time and within budget.
Final Rating: EPC 'A' successfully achieved for the merged facility.
Efficiency: From data handover to lodgement in one week.
Compliance: Fully verified under Part L 2021.
Key Project Statistics
System / Feature
Specification Achieved
Heating/Cooling
Daikin VRV Heat Recovery Heat Pumps
Ventilation
Daikin MVHR (min. 75% efficiency)
Renewables
Merged 49.5kWp Solar PV Array
Airtightness
1.44 m³/(h.m²) @ 50Pa
Modelling
SBEM (Part L 2021)
"The success of this project was rooted in the collaboration with Space Workplace. Their Project Manager ensured we had the exact as-installed technical data for the Daikin VRV and MVHR systems, allowing us to accurately demonstrate how these advanced HVAC solutions, paired with a high-performance envelope, could achieve an A-rated finish."
TFL Victoria Station House
Size: 666.3 sqm
Type: B1 Offices of Transport For London
Address: 191 Victoria Street London, SW1E 5NE
Draft EPC C
This case study highlights our advisory service for a 1922-1925 office building. In this instance, the landlord, Transport for London, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimise the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
Coach Repair Industrial Unit
Size: 653.8 sqm
Type: B2 Industrial Unit
Address: 1-2 Central Way, Station Approach, Northwood HA6 2XN
Draft EPC G
Expected Improved EPC B
This case study highlights our advisory service for a 1900 Industrial building. In this instance, the landlord, Transport for London, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
B1 Offices SW1E 5NE
Size: 175 sqm
Type: B1 Office
Address: 199 A Victoria Street, London SW1E 5NE
Draft EPC B
This case study highlights our advisory service for a 1920's office building. In this instance, the landlord, Transport for London, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
Community Centre Bramley Hill CR2
Size: 800 sqm
Type: D1 Community Centre
Address: 27 Bramley Hill, South Croydon CR2 6LX
Draft EPC C
Expected Improved EPC B
This case study highlights our advisory service for a 1965 building. In this instance, the landlord, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
Leverstock Green Community Hall
Size: 718 sqm
Type: D1 Community Centre
Address: The Village Hall, Leverstock Green HP3 8QG
Draft EPC C
Expected Improved EPC A
This case study highlights our advisory service for a 1970's building. In this instance, the landlord, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
St Savior Church and Hall
Size: 495 sqm
Type: D1 Church and Hall
Address: St Savior Church and Hall GU24 0AS
Draft EPC E
Expected Improved EPC A
This case study highlights our advisory service for a building built in 1905, 1960's and part in 1995. In this instance, the landlord, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
St John The Baptist Church
Size: 352 sqm
Type: D1 Church
Address: St John The Baptist Church RH10 1HH
Draft EPC G
Expected Improved EPC A
This case study highlights our advisory service for a building built in the middle ages and then in Victorian era. In this instance, the landlord, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
St John The Baptist Church Hall
Size: 216 sqm
Type: D1 Church Hall
Address: St John The Baptist Church Hall RH10 1HH
Draft EPC D
Expected Improved EPC B
This case study highlights our advisory service for St John The Baptist Church Hall built in the 1970's . In this instance, the landlord, requested a non-lodged EPC assessment, allowing for improvements to be implemented before formally lodging the certificate. By using our recommendations report and in-depth analysis, they were able to optimize the building’s energy efficiency before committing to a final EPC rating.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
2 Omega place Art Studio
Size: 967 sqm
Type: B1/B2 Studio Ex Bus Garage
Address: 2 Omega Place, London N1 9DR
EPC E
This case study highlights our EPC service for this interesting building which used to be a Bus garage converted into Art Studios . In this instance, the landlord, requested an EPC assessment, we conducted our assessment in record time and produced the EPC within a couple of days.
If you own a commercial property in Central London, we can provide:
Comprehensive EPC assessments tailored to your needs
Non-lodged EPCs for flexibility in improvement planning
Energy efficiency advice for refurbishment, letting, or sale
For regulatory peace of mind beyond 2030, contact us today to discuss how we can help future-proof your building.
Address:
124 City Road
London, EC1V 2NX
Registered in England no: 08900037
Contacts
+44 (0) 7453 249 591
enquiry@generation.co.uk
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