Building Conceptual Model
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Building
The class Building allows to store data about the building stock at different level of details: building units, buildings, energy plants and facilities, block of buildings or districts.
| Attribute Name | Attribute Description | Data type | Notes |
| UUID | Primary ID | text string | Unique ID for the record (building unit , building or district) |
| UUID_BDG2BDG | Parent building ID | text string | The primary ID of the element (building unit , building or district) of which the record is part: e.g. a building unit pointing to the building it is part of. |
| GEOMETRY | Geomerty | Geomerty | Mandatory. Can be either point, 2D polygon |
| IDENTIFIER_ID_NAME | Dataset namespace | text string | Allows to identify the records that refer to different sets of building data, e.g. the dataset of municipal buildings, the dataset of private buildings aggregated at district level, etc. |
| IDENTIFIER_ID_LOC | Dataset namespace ID | text string | An optional local ID to identify records within the same dataset namespace |
| EXT_REF_INF_SYS_NAME | External information system name | text string | Allows to link the record with an external information system where the same element is also listed: e.g. National Building Cadastre Database |
| EXT_REF_IDENTIFIER | External information system URL | text string | E.g. www.nationalcadastre.eu |
| EXT_REF_REFERENCE | External information system ID | text string | The ID that the element described in the record has in the external information system.
This field could be used also to store the installation address. |
| NAME | Name of of the element in the record | text string | E.g. "Primary School 'Antonio Vivaldi'", or "City District 7" |
| LIFESPAN_BEGINNING | Date of record creation | date | Describes when the record was created |
| LIFESPAN_END | Date of record validity end | date | Optional. Describes when the information in the record stops to be valid. |
| BUILDINGTYPE | Architectural typology | CODELIST | E.g. Single-family house, Monument, Office building, Gas station, etc |
| ROOF_TYPE | Roof type | CODELIST | |
| DATE_C_BEGINNING | Construction year (begin) | integer number (yyyy) | If the exact construction year is known it should be written here. If only a reference period is known, write here the year at the beginning of the period. |
| DATE_C_END | Construction year (end) | integer number (yyyy) | Optional. If only a reference period is known, write here the year at the end of the period. |
| HEIGHT_HEIGHT_LOW | Lower reference for height value | CODELIST | Where the height is considered to be starting from: e.g. "from the ground level" |
| HEIGHT_HEIGHT_REF | Higher reference for height value | CODELIST | Where the height is considered to be finishing at e.g. "at the rooftop" |
| HEIGHT_HEIGHT_STAT | Heigth value type | text string | How was determined the height: measured, estimated, etc |
| HEIGHT_HEIGHT_VAL | Height value (m) | real number | |
| FLOORS | Number of floors | integer number | |
| H_FLOOR | Average floor height | real number | |
| UNITS | Number of building units | integer number | |
| USE_S | Predominant use | CODELIST | |
| OCCUPANTS | Number of occupants | integer number | |
| USE_HOURS | Hours of use per day | real number | Average over the behaviour of all the occupants along all the days of the week |
| OWNERSHIP | Ownership | CODELIST | |
| VOLUME_SOURCE | Volume type | text string | E.g. "external geometrical volume", "heated volume", etc |
| VOLUME_VALUE | Volume (m3) | real number | |
| SURFACE_SOURCE | Surface type | text string | E.g. "usable surface", "heated surface", etc |
| SURFACE_VALUE | Surface (in m2) | real number | |
| VERT_SURF | External vertical surface (in m2) | real number | The extent of the vertical surface of the building or unit that is exchanging energy with the environment |
| VERT_SURF_TO_VOL | Surface to Volume ratio (m2/m3) | real number | |
| ENVELOPE_Q | Average envelope transmittance (W/m2°K) | real number | |
| DATE_R_BEGINNING | Renovation year (begin) | integer number (yyyy) | If the exact renovation year is known it should be written here. If only a reference period is known, write here the year at the beginning of the period. |
| DATE_R_END | Renovation year (end) | integer number (yyyy) | Optional. If only a reference period is known, write here the year at the end of the period. |
| ENERGYPERFORMANCE_PERF_DATE | Energy performance date | date | |
| ENERGYPERFORMANCE_PERF_VALUE | Energy performance value | real number | |
| ENERGYPERFORMANCE_PERF_UOM | Energy performance unit of measure | CODELIST | |
| ENERGYPERFORMANCE_PERF_CLASS | Energy performance class | text string | |
| ENERGYPERFORMANCE_PERF_METHOD | Energy performance method | text string |
Building's materials (1:n)
This class has to be associated to the previous one to store data about envelope components and materials of buildings.
| Attribute Name | Attribute Description | Data type | Notes |
| UUID_ENV2BDG | Parent building ID | text string | The primary ID of the element (building unit , building or district) to which the material refers |
| ENV_ELEMENT_TYPE | Envelope element type | CODELIST | E.g. roof, wall, ground, windows |
| ENV_ELEMENT_MAT | Material | text string | |
| ENV_ELEMENT_Q | Trasmittance (W/m2°K) | real number | |
| ENV_ELEMENT_RENOV | Renovation year | integer number (yyyy) | Optional, only if known |
Building's uses (1:n)
This class is associated to the previous (Building) to store data about current usages of buildings.
| Attribute Name | Attribute Description | Data type | Notes |
| UUID_USE2BDG | Parent building ID | text string | The primary ID of the element (building unit , building or district) to which the use refers |
| USE_M_CURRENTUSE | Current use | CODELIST | |
| USE_M_PERCENTAGE | Current use percentage | real number | Percentage with respect to the total spectrum of uses of the element (building unit , building or district) to wich this record refers |
