SAP Compliance
When Your Building
Fails SAP Targets,
We Design the Solar Strategy to Make It Pass.
Performance gaps, DER shortfalls and constrained roof space can prevent a dwelling or block from achieving Part L compliance. We design targeted, solar-led optimisation strategies to close that gap efficiently.
The Problem
Why Buildings Fail SAP
Many projects fall short of Part L compliance because solar was treated as an afterthought rather than an engineered solution. The result: the project cannot be signed off for occupation.
Insufficient Roof Area
Available roof space cannot support required kWp capacity
Shading Limits
Surrounding structures reduce effective solar generation
Poor System Sizing
System was not optimised for compliance targets
Heat Loss Issues
Communal heat loss increases energy demand beyond solar offset
PV as Afterthought
Solar added too late in the design process to be effective
A solar-led strategy can resolve these issues without structural changes.
Our Approach
How We Get You to Compliance
We can work with your existing SAP assessor or manage the process from the ground up with our own trusted assessor team.
STEP 01
Performance Gap Review
We review the current SAP results or begin a fresh assessment if required. This identifies where the building is falling short and by how much.
STEP 02
Assessment & Scenario Development
If you already have an assessor, we coordinate and refine improvement scenarios. If not, we can appoint and manage a new SAP assessment from scratch.
STEP 03
Solar-Led Optimisation
We design the optimal PV configuration, panel placement, kWp sizing,
string layout , tailored to your building's constraints and compliance gap.
STEP 04
Compliance Delivery
We manage system specification, solar installation and final SAP alignment, taking ownership of the compliance outcome.
Where This Applies
Projects We Help
New Developments
Residential developments struggling to meet SAP targets
Flat Conversions
Block conversions with limited roof capacity
Extensions
Extensions requiring updated SAP calculations
Renovations
Renovation projects triggering Part L compliance
Deliverables
What You Receive
Solar Optimisation Strategy
Full strategy tailored to your project's compliance gap
kWp Configuration
Recommended kWp configuration and system layout
Managed SAP Pathway
Coordinated SAP pathway, new or existing assessment
Implementation Plan
Clear implementation and
delivery plan
Coordinated Installation
PV installation managed to ensure compliance
Compliance Outcome
We take ownership of the SAP compliance result
Case Example
North London Residential Block
We can work with your existing SAP assessor or manage the process from the ground up with our own trusted assessor team.
If you already have an assessor, we coordinate and refine improvement scenarios. If not, we can appoint and manage a new SAP assessment from scratch.
100%
SAP Compliant
0
Structural Changes
Hybrid
Solar Strategy
