# R&D SAPs Launches Affordable, Fast SAP Calculations Nationwide
## SAP Calculations from £99 with No VAT – Including Part L, Part O, and Energy Statements
**Amersham, Buckinghamshire – August 2025** – R&D SAPs, a UK-based expert in SAP Calculations and Building Regulation compliance, now offers rapid, affordable assessment services starting at just **£99 per unit**. Serving the entire UK with **no VAT added**, the company provides certified support for new builds, conversions, extensions, and highly glazed areas.
With **24/7 availability**, a fully qualified team of OCDEA assessors, and turnaround times as fast as **3 working days**, R&D SAPs is a go-to partner for developers, architects, and self-builders seeking smooth and stress-free compliance.
## What Are SAP Calculations?
**SAP (Standard Assessment Procedure)** Calculations are required under **Part L of the UK Building Regulations**. They assess the energy efficiency of residential properties and are mandatory for:
- New build dwellings
- Material changes of use (e.g., commercial to residential conversions)
- Large extensions and highly glazed areas
SAP Calculations provide:
- A verified **SAP Rating**
- Evidence of compliance with **Part L**
- The basis for issuing an **Energy Performance Certificate (EPC)**
## Services Offered by R&D SAPs
- **SAP Calculations** for New Builds, Extensions & Conversions
- **"Part O" Overheating Assessments**
- **Energy Statements** for Planning Applications
- **U-Value and PSI-Value Calculations**
- **EPC Certification**
- **Design Support & Iteration Advice**
## Why Choose R&D SAPs?
- From **£99 per unit** — no VAT added
- Whole UK covered
- **OCDEA-accredited team**
- **Fast 3-day turnaround** available
- Expert advice on improving compliance
- Liaison with Builders, Architects & Building Control
- Full documentation provided: DER, DFEE, TER, TFEE
## When Are SAP Calculations Needed?
- **New Dwellings** – all new homes must comply with Part L
- **Conversions** – changing commercial or unheated space to domestic use
- **Extensions** – especially where large glazing areas are involved
- **Material Change of Use** – including flat splits or increasing number of units
- **Energy Status Changes** – e.g. heating an unheated garage or loft
## Required Documents for Assessment
Please prepare the following to ensure a smooth process:
- Floor plans, elevations, and section drawings
- Site plan with orientation
- Wall, roof, and floor construction details
- Window and glazing specifications
- Heating and hot water system information
- Any renewable energy technologies being used
## What’s Included?
- Full SAP documentation from design to as-built stage
- Lodgement and EPC registration
- Guidance for improvements if needed
- Fast response and tailored compliance advice
- Direct communication with your project team
- All documents submitted to Building Control as required
## Contact R&D SAPs Today
**R&D SAPs – Head Office & Accounts**
Office 18 (OCDEA's)
63-65 Woodside Road
Amersham, Buckinghamshire
HP6 6AA
📞 **Call 0800-772-3678** (24/7)
📧 **Email:** [ocdea@rd-sap.co.uk](mailto:ocdea@rd-sap.co.uk)
🌐 **Website:** [https://www.part-l.today](https://www.part-l.today)
> **R&D SAPs** – Making energy compliance simple, fast, and affordable for every project.