{
  "url": "https://openlegislation.uk/eu-regulation-2012-244/annex-III/division-1/division-1.5",
  "json_url": "https://openlegislation.uk/eu-regulation-2012-244/annex-III/division-1/division-1.5.json",
  "legislation": "eur/2012/244",
  "legislation_title": "Commission Delegated Regulation (EU) No 244/2012 of 16 January 2012 supplementing Directive 2010/31/EU of the European Parliament and of the Council on the energy performance of buildings by establishing a comparative methodology framework for calculating cost-optimal levels of minimum energy performance requirements for buildings and building elements (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2012-244",
  "path": "annex/III/division/1/division/1.5",
  "kind": "division",
  "number": "1.5",
  "heading": null,
  "text": "Please indicate the underlying dataset for the national building stock\nTable 1\nReference building for existing buildings (major refurbishment)\nS/V (surface to volume), orientation, area of N/W/S/E facade.\nConstruction material, typical air tightness (qualitative), use pattern (if appropriate), age (if appropriate).\nTechnical building systems, U values of building elements, windows — area, U value, g value, shading, passive systems, etc.\nFor existing buildings\nBuilding geometry\nShares of window area on the building envelope and windows with no solar access\nFloor area m2 as used in building code\nDescription of the building\nDescription of the average building technology\nAverage energy performancekWh/m2, a(prior to investment)\nComponent level requirements(typical value)\n(1) Single family buildings and subcategories\nSubcategory 1\nSubcategory 2 etc.\n(2) Apartment blocks and multifamily buildings and subcategories\n(3) Office buildings and subcategories\n(4) Other non-residential building categories\nTable 2\nReference building for new buildings\nS/V, area of N/W/S/E facade. To note: the orientation of the building can already constitute an energy efficiency measure in itself in the case of new buildings.\nFor new buildings\nBuilding geometry\nShares of window area on the building envelope and windows with no solar access\nFloor area m2 as used in building code\nTypical energy performancekWh/m2, a\nComponent level requirements\n(1) Single family buildings and subcategories\nSubcategory 1\nSubcategory 2 etc.\n(2) Apartment blocks and multifamily buildings and subcategories\n(3) Office buildings and subcategories\n(4) Other non-residential building categories\nTable 3\nExample of a basic reporting table for energy performance relevant data\nQuantity\nUnit\nDescription\nCalculation\nmethod and tool(s)\nshort description of the calculation method adopted (e.g. with reference to EN ISO 13790) and comment on the calculation tool(s) used\nPrimary energy conversion factors\nvalues of delivered to primary energy conversion factors (per energy carrier) used for the calculation\nClimate condition\nlocation\nname of the city with indication of latitude and longitude\nheating degree-days\nHDD\nto be evaluated according to EN ISO 15927-6, specifying the period of calculation\ncooling degree-days\nCDD\nsource of climatic dataset\nprovide references on climatic dataset used for the calculation\nterrain description\ne.g. rural area, sub-urban, urban. Explain if the presence of nearby buildings has been considered or not\nBuilding geometry\nLength × Width × Height\nm × m × m\nrelated to the heated/conditioned air volume (EN 13790) and considering as ‘length’ the horizontal dimension of the façade south-oriented\nnumber of floors\n—\nS/V (surface-to-volume) ratio\nm2/m3\nratio of window area over total building envelope area\nSouth\n%\nEast\n%\nNorth\n%\nWest\n%\norientation\n°\nazimuth angle of the South façade (deviation from the South direction of the ‘South’ oriented façade)\nInternal gains\nbuilding utilisation\naccording to the building categories proposed in Annex 1 to Directive 2010/31/EU\naverage thermal gain from occupants\nW/m2\nspecific electric power of the lighting system\nW/m2\ntotal electric power of the complete lighting system of the conditioned rooms (all lamps + control equipment of the lighting system)\nspecific electric power of electric equipment\nW/m2\nBuilding elements\naverage U-value of walls\nW/m2K\nweighted U-value of all walls: U_wall = (U_wall_1 · A_wall_1 + U_wall_2 · A_wall_2 + … + U_wall_n · A_wall_n)/(A_wall_1 + A_wall_2 + … + A_wall_n); here are: U_wall_i = Uvalue of wall type i; A_wall_i = total surface of wall type i\naverage U-value of roof\nW/m2K\nsimilar to walls\naverage U-value of basement\nW/m2K\nsimilar to walls\naverage U-value of windows\nW/m2K\nsimilar as for walls; it should take into account the thermal bridge due to the frame and dividers (according to EN ISO 10077-1)\nthermal bridges\ntotal length\nm\naverage linear thermal transmittance\nW/mK\nthermal capacity per unit area\nexternal walls\nJ/m2K\nto be evaluated according to EN ISO 13786\ninternal walls\nJ/m2K\nslabs\nJ/m2K\ntype of shading systems\ne.g. solar blind, roll-up shutter, curtain, etc.\naverage g-value of\nglazing\n—\ntotal solar energy transmittance of glazing (for radiation perpendicular to the glazing), here: weighted value according to the area of different windows (to be evaluated according to EN 410)\nglazing + shading\n—\ntotal solar energy transmittance for glazing and an external solar protection device has to be evaluated according to EN 13363-1/-2\nInfiltration rate (air changes per hour)\n1/h\ne.g. calculated for a pressure difference inside/outside of 50 Pa\nBuilding systems\nventilation system\nair changes per hour\n1/h\nheat recovery efficiency\n%\nefficiencies of heating system\ngeneration\n%\nto be evaluated according to EN 15316-1, EN 15316-2-1, EN 15316-4-1, EN 15316-4-2, EN 15232, EN 14825, EN 14511\ndistribution\n%\nemission\n%\ncontrol\n%\nefficiencies of cooling system\ngeneration\n%\nto be evaluated according to EN 14825, EN 15243, EN 14511, EN 15232\ndistribution\n%\nemission\n%\ncontrol\n%\nefficiencies of DHW system\ngeneration\n%\nto be evaluated according to EN 15316-3-2, EN 15316-3-3\ndistribution\n%\nBuilding Setpoints and Schedules\ntemperature setpoint\nwinter\n°C\nindoor operative temperature\nsummer\n°C\nhumidity setpoint\nwinter\n%\nindoor relative humidity, if applicable: ‘Humidity has only a small effect on thermal sensation and perceived air quality in the rooms of sedentary occupancy’ (EN 15251)\nsummer\n%\noperation schedules and controls\noccupancy\nprovide comments or references (EN or national standards, etc.) on the schedules used for the calculation\nlighting\nappliances\nventilation\nheating system\ncooling system\nEnergy building need/use\n(thermal) energy contribution of main passive strategies implemented\n(1)\n…\nkWh/a\ne.g. solar greenhouse, natural ventilation, day-lighting, etc.\n(2)\n…\nkWh/a\n(3)\n…\nkWh/a\nenergy need for heating\nkWh/a\nheat to be delivered to or extracted from a conditioned space to maintain the intended temperature conditions during a given period of time\nenergy need for cooling\nkWh/a\nenergy need for DHW\nkWh/a\nheat to be delivered to the needed amount of domestic hot water to raise its temperature from the cold network temperature to the prefixed delivery temperature at the delivery point\nenergy need for other (humidification, dehumidification)\nkWh/a\nlatent heat in the water vapour to be delivered to or extracted from a conditioned space by a technical building system to maintain a specified minimum or maximum humidity within the space (if applicable)\nenergy use for ventilation\nkWh/a\nelectrical energy input to the ventilation system for air transport and heat recovery (not including the energy input for preheating the air) and energy input to the humidification systems to satisfy the need for humidification\nenergy use for internal lighting\nkWh/a\nelectrical energy input to the lighting system and other appliances/systems\nenergy use for other (appliances, external lighting, auxiliary systems, etc.)\nkWh/a\nEnergy generation at the building site\nthermal energy from RES (e.g. thermal solar collectors)\nkWh/a\nenergy from renewable sources (that are not depleted by extraction, such as solar energy, wind, water power, renewed biomass) or co-generation\nelectrical energy generated in the building and used onsite\nkWh/a\nelectrical energy generated in the building and exported to the market\nkWh/a\nEnergy consumption\ndelivered energy\nelectricity\nkWh/a\nenergy, expressed per energy carrier, supplied to the technical building systems through the system boundary, to satisfy the uses taken into account (heating, cooling, ventilation, domestic hot water, lighting, appliances, etc.)\nfossil fuel\nkWh/a\nother (biomass, district heating/cooling, etc.)\nkWh/a\nprimary energy\nkWh/a\nenergy that has not been subjected to any conversion or transformation process",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "S/V (surface to volume), orientation, area of N/W/S/E facade."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Construction material, typical air tightness (qualitative), use pattern (if appropriate), age (if appropriate)."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Technical building systems, U values of building elements, windows — area, U value, g value, shading, passive systems, etc."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "S/V, area of N/W/S/E facade. To note: the orientation of the building can already constitute an energy efficiency measure in itself in the case of new buildings."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2012/244/annex/III/division/1/division/1.5",
    "retrieved_at": "2026-11-01T14:49:31.287569+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}