SAP calculations
Model the proposed dwelling and test the specification before work progresses too far.
- Review drawings and construction details
- Model fabric and building services
- Identify compliance pressure points
SAP calculations & new-build EPCs
Design for compliance.
Build with certainty.
Energy modelling and certification for new homes—from early design decisions and Building Regulations submissions through to the completed dwelling EPC.
Design-stage assessment As-built calculation New-build EPC
Start before construction
Energy performance is easier to solve on the drawing board.
Early SAP assessment identifies whether the proposed fabric, heating, ventilation, renewables and services strategy is likely to achieve the required outcome. ECO Connect works with the project team to resolve issues before they become expensive site changes.
Specification support
Compare practical changes to the design and understand their effect on the modelled result.
- Fabric and thermal-bridge inputs
- Heating, hot water and ventilation
- Solar PV and low-carbon options
As-built SAP & EPC
Update the calculation using the final installed specification and produce the new-build EPC when the evidence is complete.
- As-built information review
- Final compliance calculation
- Lodged completion EPC
Evidence-led delivery
The calculation is only as reliable as the project information behind it.
We set out the required information early and maintain a clear record as the design develops. That keeps architects, contractors and developers aligned—and reduces the risk of missing evidence at completion.
Drawings & dimensionsPlans, elevations, sections and dwelling geometry
Fabric specificationU-values, junction details, openings and airtightness
Building servicesHeating, hot water, ventilation, controls and renewables
As-built evidenceFinal product details, test results and installed changes
Development programmes
One technical route across every plot and house type.
ECO Connect can coordinate repeat house types, variations and completion evidence across multi-plot developments—giving the client team a consistent point of contact from initial design to final certificates.
Discuss your developmentHouse-type control
Organise calculations around core types and plot-specific variations.
Team coordination
Keep designers, contractors and client representatives working from clear inputs.
Completion tracking
See which plots have evidence, final calculations and certificates outstanding.
Consistent outputs
Apply one defined technical process throughout the development.
Project pathway
Four controlled stages.
One accountable service.
- 01Information
Receive drawings, specification, dwelling types and the intended programme.
- 02Design model
Calculate performance, report the position and resolve design issues.
- 03As-built review
Confirm final materials, systems, test results and construction changes.
- 04Completion
Finalise the calculation and issue the new-build EPC where requirements are met.
Built for project teams
A technical partner who understands delivery pressures.
Housebuilders Architects Developers Building designers Main contractors Housing providers
SAP enquiries
Send the drawings—or tell us what is being designed.
We will confirm the information required, the project stages to be covered and a clear quotation.