Property Services

Domestic EPC – To put it simply, an EPC (Energy Performance Certificate) is an assessment carried out by a domestic energy assessor, and gives property owners and buyers information about the energy performance of an existing domestic property. It is a legal requirement that all dwellings within the UK need to have an EPC in place prior to any sale or rental and this information needs to be available for potential buyers/tenants to view when you first list the property.

Commercial EPC – Similar to Domestic EPCs, a commercial (or non-domestic) EPC provides a rating based on how energy efficient a property is. The rating goes from A to G, with A being the most efficient. This energy certificate can only be awarded by an accredited company, to ensure total accuracy of the rating available to potential tenants. Here at Compliant EPC, we are able to offer professional non-domestic EPC services across the UK, with the desirable experience and qualifications to do so thoroughly.

Legionella Risk Assessment – A legionella assessment is an inspection of a properties water systems, to ensure that the risk of legionella bacteria growing is at a controlled level and that safety measurements are put in place. There is no set time scale as to how often this assessment needs to be carried out, but it should be reviewed regularly (We advise landlords to have this carried out annually) and you should have a retest carried out if there are any changes to the water systems in the property, or even if there are changes in tenants or in the medical situations of your current tenants – which may make them more susceptible to getting the disease.

Domestic Floor Plan – A floor plan is a typically a 2D view of a building’s interior from above, showing the layout of the property and its rooms. They are used by architects prior to building to show the design of the house, and to give a representation of what it will look like once complete.

Commercial Floor Plan – A commercial floor plan is much the same as its domestic counterpart, however it tends to include much more complex designs when dealing with properties such as warehouses, factories, workshops, offices and more.

Minimum Efficiency Energy Standards Assessment (MEES) – “MEES” are a minimum energy efficiency level for domestic private rented properties, set and enforced by the Government. This standard applies to all domestic private rented properties that are legally required to have an Energy Performance Certificate (EPC). We can provide an assessment in line with this which will detail in depth how to improve your property in order to comply with government regulation. Landlords can find advice on “MEES” from the Department for Business, Energy and Industrial Strategy on the government website.

Construction Services

New Build SAP Calculation – A new build Standard Assessment Procedure Calculation (Also categorised as a L1A SAP) is an assessment and subsequent calculation which is carried out on a newly built property to predict the energy performance of a domestic property and its compliance with part L1A of building regulations. This encompasses all residential builds such as houses, flats and shared accommodation.

Conversion SAP Calculation – A conversion Standard Assessment Procedure Calculation (Also categorised as a L1B SAP) is an assessment and subsequent calculation which is carried out on a property that has had a change of use into a domestic property. These assessments predict the energy performance of a domestic property and its compliance with part L1B of building regulations. Again, these assessments cover all residential builds from homes to flats and houses of multiple occupancy (HMOs).

Overly Glazed Design Flexibility SAP Calculation – Overlay Glazed Design Flexibility SAP Calculations (Also categorised as Design Flex Calculations, DFLEX Calculations or simply Extension SAP Calculations) are assessments and calculations undertaken similar in essence to conversion SAP calculations. It is an assessment undertaken to prove the compliance of the extension with part L1B of building regulations.

Water Efficiency Calculation – A water efficiency calculation can help building owners to work out the total water consumption, per person, per day in a property.  Following guidelines set by Approved Document G under government Building Regulations – Sanitation, hot water safety and water efficiency, all new build projects whether it be new build or conversion must calculate how much water is likely to be used each day.

New Build SBEM Calculation

Conversion SBEM Calculation

Energy Statement – Latest planning policies across the UK will often now include sustainability targets for building projects. Each local authority has its own specific requirements but often you must demonstrate how these targets will be met, by the means of producing and submitting an energy statement to the planning authority. Energy Statements are carried out and produced to determine how your project will meet the local authority specific requirement. Often this will mean going above and beyond building minimum regulation compliance to show that you have contributed a further improvement by a reduction in carbon emissions (CO₂) or energy (kWh). Dependent on the requirement there are various ways and means of meeting the target, these can often be achieved by increased thermal performance of a building (Be Lean), better performing or more considerate building services (Be Clean) or the incorporation of renewable technologies (Be Green). If you would like to see an example of the Energy Strategy Reports that we create, click here to take a look.

U-Values Calculations

Dynamic Simulation Modelling

TM52 Overheating Assessment

TM59 Overheating Assessment

Dynamic Simulation Modelling (DSM)

On-site Testing Services 

Air Pressure Testing

Ventilation Testing

Acoustic Testing



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