Part L · Design & Planning

SAP Calculations & EPCs
in Worcestershire

OCDEA-accredited SAP and EPC delivery across Worcestershire's 6 Local Planning Authorities — Worcester, Wychavon, Malvern Hills, Bromsgrove, Redditch and Wyre Forest. From £95+VAT per dwelling. 3-5 day turnaround. Local knowledge of every Worcestershire Local Plan.

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OCDEA

accredited assessors
EES/030713

3-5 day

typical turnaround

Local

knowledge of every
Worcestershire LPA

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OCDEA accredited · 3-5 day turnaround across Worcestershire

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SAP calculations in Worcestershire

Local OCDEA assessors who know every Worcestershire planning authority.

Worcestershire has six Local Planning Authorities — Worcester City, Wychavon, Malvern Hills, Bromsgrove, Redditch, and Wyre Forest — each with its own Local Plan policies on sustainability and energy efficiency. We work with all six on a regular basis. Build Envelope is based in Worcester city centre, and our OCDEA accreditation (EES/030713) is recognised by every Building Control body in the county.

SAP (Standard Assessment Procedure) is the government-approved method for calculating the energy performance of new build dwellings. It is required at Design Stage to demonstrate compliance with Part L of the Building Regulations, and again at As-Built stage before an EPC can be issued and Building Control sign-off achieved.

Many Worcestershire planning conditions also require sustainability statements, which we deliver alongside the SAP. The South Worcestershire Development Plan (covering Worcester, Wychavon, and Malvern Hills) sets specific energy targets for major residential applications, while Bromsgrove and Redditch District Plans incorporate Climate Emergency commitments adopted in 2019. We understand what each LPA expects in submitted documentation.

Whether you are submitting outline planning, reserved matters, or seeking a fully accredited SAP and EPC, we deliver in 3-5 working days from receipt of architectural drawings and specification. Need it faster? Tell us — we routinely accommodate urgent turnarounds across Worcestershire.

Part L 2021 compliance

DER ≤ TER

Dwelling Emissions Rate must be lower than or equal to Target Emissions Rate — Part L 2021, England

SAP score targets matter at planning stage too. Worcestershire LPAs frequently set policy SAP minimums of 80+ for new homes. We model your specification against both Part L and any planning-stage policy.

EPC ratings: A (92+), B (81-91), C (69-80). Most new builds need to achieve a B or higher to satisfy Part L; planning conditions sometimes require A.

The assessment process

From drawings to EPC certificate.

A typical SAP assessment is delivered in 3-5 working days from receipt of complete drawings and specification.

Information gathering

We send a project information pack — architectural drawings, U-values, glazing, heating system, ventilation strategy, and renewables. The more accurate the inputs, the more reliable the result.

Design Stage SAP

We model the dwelling against Part L 2021. If the spec doesn't pass, we identify the cheapest changes — better windows, lower U-values, PV, ASHP — to get DER ≤ TER without rebuilding the design.

Build & test

On site, your specifications must match the SAP inputs. We coordinate the air tightness test result and any changes to specification before generating the As-Built SAP.

EPC & sign-off

Final SAP run produces the EPC. We lodge directly to the EPC register and provide all documentation required by Worcestershire Building Control teams. Ready for completion.

What we need

Information that speeds up your SAP — and reduces revisions.

Most SAP delays come from missing or unclear specification information. The more complete your information pack at kick-off, the faster the assessment — and the less likely you'll need a re-run if specs change.

If you don't have all of the information yet, send what you have. We can run a Design Stage SAP based on assumptions, then update at As-Built once the actual products and test results are confirmed. Worcestershire planning conditions often require a Design Stage SAP at submission, even when products aren't selected.

For sites in Worcester, Malvern, or Wychavon, planning conditions sometimes ask for a Sustainability Statement alongside the SAP. We can deliver both at the same time at no additional cost where the SAP supports the same conclusions.

Project information checklist

Architectural drawings Plans, sections, elevations, and site plan to scale.

Construction U-values Wall, floor, roof — calculated values or specification adequate to derive them.

Window & door schedule Glazing types, frame materials, U-values, g-values, and dimensions.

Heating system Boiler, heat pump, or other primary heat source — make and model where known.

Ventilation strategy Natural, mechanical extract, or MVHR — and any PSV or trickle vent details.

Renewables PV, solar thermal, batteries — kWp, location, and product details.

Districts we cover

SAP delivery across all six Worcestershire planning authorities.

Local knowledge of each Worcestershire LPA's Local Plan policies, sustainability requirements, and planning condition templates. We've delivered SAP across hundreds of Worcestershire developments.

Worcester City Council

Worcester city centre, Battenhall, St John's, and Warndon. Major regeneration sites and city-centre apartment schemes.

Wychavon District

Droitwich Spa, Evesham, Pershore, and surrounding villages. Strong housing pipeline under the South Worcestershire Development Plan.

Malvern Hills District

Great Malvern, Tenbury Wells, Upton-upon-Severn. Sensitive AONB locations with stricter sustainability requirements.

Bromsgrove District

Bromsgrove, Hagley, Alvechurch, Wythall. New housing allocations under the Bromsgrove District Plan.

Redditch Borough

Redditch town and surrounding communities. Climate Emergency commitments inform Local Plan policy.

Wyre Forest District

Kidderminster, Stourport-on-Severn, Bewdley. Historic town centres with conservation considerations.

Working outside Worcestershire? We deliver SAP nationally — see our pages for Birmingham & West Midlands, Gloucestershire, Bristol & Somerset, Warwickshire.

FAQ

Common questions about SAP calculations in Worcestershire.

Pricing starts from £95+VAT for a single dwelling. Larger developments are quoted by plot count, complexity, and how complete your information pack is.

There are no hidden fees — the quoted price includes Design Stage SAP, As-Built SAP, EPC lodgement, and reasonable revisions.

Most Design Stage SAPs are delivered within 3-5 working days from receipt of a complete information pack. Urgent turnarounds (1-2 days) can be accommodated where possible — call 01386 365145 to check capacity.

Many Worcestershire LPAs require a Design Stage SAP or Energy Statement as part of major residential planning conditions, particularly under the South Worcestershire Development Plan.

Householder applications and minor schemes typically don't, but we can advise per project.

If your Design Stage SAP doesn't meet DER ≤ TER, we identify the lowest-cost specification changes to bring it into compliance — for example switching from gas boiler to ASHP, increasing PV, or improving glazing.

We rerun the SAP at no extra cost when changes are made within the same project.

Yes. We are based in Worcester city centre and deliver SAP across all six Worcestershire LPAs (Worcester, Wychavon, Malvern Hills, Bromsgrove, Redditch, Wyre Forest). Our certificates are accepted by every Worcestershire Building Control body.

Yes. Build Envelope handles SAP, EPC, air tightness testing, sound insulation testing, ventilation flow rate testing, and overheating assessments under one team.

Most Worcestershire developments use us for the full compliance scope, which avoids handover delays.

Yes. SAP is required for material changes of use (e.g. barn conversions to dwellings) and over-glazed extensions. We've worked extensively in the Cotswolds AONB / Malvern Hills AONB and understand the conservation considerations involved.

SAP Calculations & EPCsin Worcestershire