Building Conceptual Model

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