Datasets

Energy Performance Certificates (EPCs)

Energy Performance Certificates (EPCs) are required by law whenever a property is built and needed if someone wishes to sell or let their property.

The purpose of the EPC is to give you an indication of how much it will cost you to heat and light the property, and how much CO2 the property emits.

With an energy efficiency rating from A (most efficient) to G (least efficient), an EPC is valid for 10 years. Each EPC contains both information about a property’s energy use and typical energy costs and recommendations about how to reduce energy use and save money.

The better the rating on the EPC certificate, the lower the cost of running the property.

AFD’s range of address lookup and address cleansing solutions can now return EPC data for the address
being validated and appended to addresses
during a batch data cleanse process.

EPC Data Benefits

This enhanced dataset helps the property sector with accurate and upto date data, safety and energy efficiency in many ways:

  • Ensure properties with the worst EPC ratings are prioritised in cold winters or energy crisis for support.

  • Organisations involved in energy, property management, housing associations and estate agents can advise customers with lower EPC ratings how to improve them and save energy.

  • Councils and Housing Associations can improve tenants housing conditions and identify properties lacking adequate insulation.

Available EPC data that can be returned with an address lookup or appended during database cleansing:

 

CURRENT ENERGY RATING

Current energy rating converted into a linear ‘A to G’ rating (where A is the most energy efficient and G is the least energy efficient)

POTENTIAL ENERGY RATING

Estimated potential energy rating converted into a linear ‘A to G’ rating (where A is the most energy efficient and G is the least energy efficient)

CURRENT ENERGY EFFICIENCY

Based on cost of energy, i.e., energy required for space heating, water heating and lighting [in kWh/year] multiplied by fuel costs. (£/m²/year where cost is derived from kWh).

POTENTIAL ENERGY EFFICIENCY

The potential energy efficiency rating of the property.

PROPERTY TYPE

Describes the type of property such as House, Flat, Maisonette etc. This is the type differentiator for dwellings.

BUILT FORM

The building type of the Property e.g., Detached, Semi-Detached, Terrace etc. Together with the Property Type, the Build Form produces a structured description of the property

INSPECTION DATE

The date that the inspection was actually carried out by the energy assessor

LOCAL AUTHORITY

Office for National Statistics (ONS) code. Local authority area in which the building is located.

CONSTITUENCY

Office for National Statistics (ONS) code. Parliamentary constituency in which the building is located.

COUNTY

County in which the building is located (where applicable)

LODGEMENT DATE

Date lodged on the Energy Performance of Buildings Register

TRANSACTION TYPE

Type of transaction that triggered EPC. For example, one of: marketed sale; non-marketed sale; new dwelling; rental; not sale or rental; assessment for Green Deal; following Green Deal; FIT application; none of the above; RHI application; ECO assessment. Where the reason for the assessment is unknown by the energy assessor the transaction type will be recorded as ‘none of the above’. Transaction types may be changed over time.

ENVIRONMENT IMPACT CURRENT

The Environmental Impact Rating. A measure of the property’s current impact on the environment in terms of carbon dioxide (CO₂) emissions. The higher the rating the lower the CO₂ emissions. (CO₂ emissions in tonnes / year)

ENVIRONMENT IMPACT POTENTIAL

The potential Environmental Impact Rating. A measure of the property’s potential impact on the environment in terms of carbon dioxide (CO₂) emissions after improvements have been carried out. The higher the rating the lower the CO₂ emissions. (CO₂ emissions in tonnes / year)

ENERGY CONSUMPTION CURRENT

Current estimated total energy consumption for the property in a 12-month period (kWh/m2). Displayed on EPC as the current primary energy use per square metre of floor area.

ENERGY CONSUMPTION POTENTIAL

Estimated potential total energy consumption for the Property in a 12-month period. Value is Kilowatt Hours per Square Metre (kWh/m²)

CO EMISSIONS CURRENT

CO₂ emissions per year in tonnes/year.

CO EMISS CURR PER FLOOR AREA

CO₂ emissions per square metre floor area per year in kg/m²

CO EMISSIONS POTENTIAL

Estimated value in Tonnes per Year of the total CO₂ emissions produced by the Property in 12-month period.

LIGHTING COST CURRENT

GBP. Current estimated annual energy costs for lighting the property.

LIGHTING COST POTENTIAL

GBP. Potential estimated annual energy costs for lighting the property after improvements have been made.

HEATING COST CURRENT

GBP. Current estimated annual energy costs for heating the property.

HEATING COST POTENTIAL

GBP. Potential annual energy costs for lighting the property after improvements have been made.

HOT WATER COST CURRENT

GBP. Current estimated annual energy costs for hot water

HOT WATER COST POTENTIAL

GBP. Potential estimated annual energy costs for hot water after improvements have been made.

TOTAL FLOOR AREA

The total useful floor area is the total of all enclosed spaces measured to the internal face of the external walls, i.e. the gross floor area as measured in accordance with the guidance issued from time to time by the Royal Institute of Chartered Surveyors or by a body replacing that institution. (m²)

ENERGY TARIFF

Type of electricity tariff for the property, e.g., single.

MAINS GAS FLAG

Whether mains gas is available. Yes means that there is a gas meter or a gas-burning appliance in the dwelling. A closed-off gas pipe does not count.

FLOOR LEVEL

Flats and maisonettes only. Floor level relative to the lowest level of the property (0 for ground floor). If there is a basement, the basement is level 0, and the other floors are from 1 upwards

FLAT TOP STOREY

Whether the flat is on the top storey

FLAT STOREY COUNT

The number of storeys in the apartment block.

MAIN HEATING CONTROLS

Type of main heating controls. Includes both main heating systems if there are two.

MULTI GLAZE PROPORTION

The estimated banded range (e.g., 0% – 10%) of the total glazed area of the Property that is multiple glazed.

GLAZED TYPE

The type of glazing. From British Fenestration Rating Council or manufacturer declaration, one of; single; double; triple.

GLAZED AREA

Ranged estimate of the total glazed area of the Habitable Area.

EXTENSION COUNT

The number of extensions added to the property. Between 0 and 4.

NUMBER HABITABLE ROOMS

Habitable rooms include any living room, sitting room, dining room, bedroom, study and similar, and also a non-separated conservatory. A kitchen/diner having a discrete seating area (with space for a table and four chairs) also counts as a habitable room. A non-separated conservatory adds to the habitable room count if it has an internal quality door between it and the dwelling. Excluded from the room count are any room used solely as a kitchen, utility room, bathroom, cloakroom, en-suite accommodation and similar and any hallway, stairs or landing; and also, any room not having a window.

NUMBER HEATED ROOMS

The number of heated rooms in the property if more than half of the habitable rooms are not heated.

LOW ENERGY LIGHTING

The percentage of low energy lighting present in the property as a percentage of the total fixed lights in the property. 0% indicates that no low-energy lighting is present.

NUMBER OPEN FIREPLACES

The number of Open Fireplaces in the Property. An Open Fireplace is a fireplace that still allows air to pass between the inside of the Property and the outside.

HOTWATER DESCRIPTION

Overall description of the property feature

HOT WATER ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

HOT WATER ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

FLOOR DESCRIPTION

Overall description of the property feature

FLOOR ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

FLOOR ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

WINDOWS DESCRIPTION

Overall description of the property feature

WINDOWS ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

WINDOWS ENV EFF

WINDOWS. Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

WALLS DESCRIPTION

Overall description of the property feature

WALLS ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

WALLS ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

SECONDHEAT DESCRIPTION

Overall description of the property feature

SHEATING ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

SHEATING ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

ROOF DESCRIPTION

Overall description of the property feature

ROOF ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

ROOF ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

MAINHEAT DESCRIPTION

Overall description of the property feature

MAINHEAT ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

MAINHEAT ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

MAINHEATCONT DESCRIPTION

Overall description of the property feature

MAINHEATC ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

MAINHEATC ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

LIGHTING DESCRIPTION

Overall description of property feature. Total number of fixed lighting outlets and total number of low-energy fixed lighting outlets

LIGHTING ENERGY EFF

Energy efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

LIGHTING ENV EFF

Environmental efficiency rating. One of: very good; good; average; poor; very poor. On actual energy certificate shown as one-to-five-star rating.

MAIN FUEL

The type of fuel used to power the central heating e.g., Gas, Electricity

WIND TURBINE COUNT

Number of wind turbines; 0 if none.

HEAT LOSS CORRIDOR

Flats and maisonettes only. Indicates that the flat contains a corridor through which heat is lost. Heat loss corridor, one of: no corridor; heated corridor; unheated corridor

UNHEATED CORRIDOR LENGTH

The total length of unheated corridor in the flat. Only populated if flat or maisonette contains unheated corridor. If unheated corridor, length of sheltered wall (m²).

FLOOR HEIGHT

Average height of the storey in metres.

PHOTO SUPPLY

Percentage of photovoltaic area as a percentage of total roof area. 0% indicates that a Photovoltaic Supply is not present in the property.

SOLAR WATER HEATING FLAG

Indicates whether the heating in the Property is solar powered.

MECHANICAL VENTILATION

Identifies the type of mechanical ventilation the property has. This is required for the RdSAP calculation.

ADDRESS

Field containing the concatenation of address1, address2 and address3. Note that post code is recorded separately.

LOCAL AUTHORITY NAME

The name of the local authority area in which the building is located. This field is for additional information only and should not be relied upon; please refer to the Local Authority ONS Code.

CONSTITUENCY NAME

The name of the parliamentary constituency in which the building is located. This field is for additional information only and should not be relied upon; please refer to the Constituency ONS Code.

CONSTRUCTION AGE BAND

Age band when building part constructed. England & Wales only. One of: before 1900; 1900-1929; 1930-1949; 1950-1966; 1967-1975; 1976-1982; 1983-1990; 1991-1995; 1996-2002; 2003-2006; 2007-2011; 2012 onwards.

LODGEMENT DATETIME

Date and time lodged on the Energy Performance of Buildings Register.

TENURE

Describes the tenure type of the property. One of: Owner-occupied; Rented (social); Rented (private).

FIXED LIGHTING OUTLETS COUNT

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