BAS: Base - Building sub area code found on a property record card. Base is the primary living area of the building; other structural elements for the Property Record will be defined from this area. Base living area functions with living, kitchen, and bath areas under the same roof line (not relevant to commercial properties).

Block - An urban area, usually consisting of several lots, enclosed on all sides by public streets or by public streets and a river, a railroad right-of-way, or other more or less permanent boundary.

BFE: Base Flood Elevation - FEMA defines the Base Flood Elevation (BFE) as the computed elevation to which the flood is anticipated to rise during the base flood. BFEs are shown on FEMA's Flood Insurance Rate Maps (FIRMs) and in the Flood Insurance Study (FIS) which are published by the Map Service Center for almost every community.

BMF: Basement Finished - Building sub area code found on a property record card. The lowest story of a building, partially or wholly below ground level; but with finished materials on the ceiling and/or walls, painted or unpainted, non-living area. To be classified as a Finished Basement, there must be a minimum seven (7) foot ceiling height. Basements are extremely rare in Pinellas County.

BMU: Basement Unfinished - Building sub area code found on a property record card. A basement area which is of lower quality than BMF, e.g., unfinished as to ceiling and/or walls.

BSF: Base Semi Finished – Building sub area code found on a property record card. May or may not be part of the main living area of a residence but can either be an addition or conversion of an existing component; close to the same structural integrity and quality of the Base. Often will have an unobstructed entry to Base, have similar interior finish, and is homogenous with Base area, and have compatible fenestration and shared HVAC. An area designated as BSF should have the majority of construction features as Base, approximately 75% by the appraiser’s judgment, typically 2 or more items of different construction. Overall Rule – Quality is less than Base but better than Enclosed Porch. The most common differences between BAS and BSF is often roof framing, roof cover, and exterior wall construction indicating an area of lesser quality. Other differences may include inadequate HVAC, elevation may be above or below BAS height, inferior interior finish, or lack of other details common to Base area.

Building Number - For parcels containing multiple buildings, the number assigned to each building.