Planning Condition: 19% Reduction – SAP Calculations, Croydon

THE BRIEF

We were instructed to carry out L1A SAP Calculations on this block of flats in Croydon
The Planning Condition required a 19% DER (Dwelling Emissions Rate) Reduction on top of baseline Part L Standards

Planning Condition: 19% Reduction - SAP Calculations, Croydon

THE PROCESS

UKBC assisted with the specification of the Glazing, U-Values, Insulation, Heating Systems and Thermal Bridging
Creative solutions were required in order to achieve the 19% DER Reduction retrospectively
Our assessors recommended additional technologies such as flue gas heat recovery systems, waste water recovery systems and air source heat pumps in order to achieve this Reduction

THE RESULT

SAP RESULTS

≤ 23.63

Target Emission Rate (TER)

≤ 55.94

Target Fabric Energy Efficiency (TFEE)

18.80

Dwelling Emission Rate (DER)

49.12

Dwelling Fabric Energy Efficiency (DFEE)

PASS

PASS

Compliant

Compliant with Part L Building Regulation Standards
Planning Condition of 19% Additional Reduction in DER met:

20.44% Improvement in DER
12.19% Improvement in DFEE

Planning Condition: 19% Reduction - SAP Calculations, Croydon

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