Part L · Dwellings

SAP calculations for domestic projects

Design-stage and as-built assessment, with practical input where the specification needs to change.

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Energy model and residential drawings being reviewed for a SAP calculation

Overview

A SAP assessment models the energy performance of a dwelling and is used to demonstrate the applicable Part L requirements. The useful part is not simply the result: it is understanding which parts of the design are driving it, and resolving them without losing sight of buildability, cost or architectural intent.

Good to know

Project requirements vary by building type, location and timing. Send us the project information and we will confirm the right assessment route before providing a quotation.

Particularly useful for

  • New dwellings and applicable conversions
  • Single homes and small residential developments
  • Design-stage checks before specifications are fixed
  • As-built assessment and coordination of final evidence

Our approach

  1. 01

    Review drawings, specifications and project stage

  2. 02

    Model fabric, glazing, junctions, services, ventilation and renewables as applicable

  3. 03

    Explain any shortfall and compare proportionate design responses

  4. 04

    Coordinate amendments and issue the relevant calculation outputs

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Send us the project

Upload the drawings and a few project details. We will review what is needed and confirm the scope before work begins.

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