Architectural Drafting Unit 2 Terms & Definitions Architectural Drafting Unit 2

Tract A defined area of land

Plat Map of a given tract of land or subdivision

Site The general locality wherein the lot is situated

Property survey Legal document prepared by surveyor which includes dimensions of lot

Topographic survey Representation of natural and man-made features of the lot such as existing trees, drives, and water

Plot plan Drawing which contains information from property survey and topographic survey

Elevation Vertical distance above or below sea level

Benchmark Point of known elevation serving as a reference

Contour lines Lines which connect points having the same elevation to indicate slope NOTE:Widely spaced contour lines indicate a gradual slope, while tightly spaced lines indicate a steep slope

Orientation The direction a given wall faces

Utility easement (U/E) Right of a company to cross portions of property with utilities and to maintain and service their equipment NOTE: These include water, gas, electric, sewer, and telephone

Building line (B/L) A line parallel to the property line determining the allowable building area

Azimuth Direction from North or South up to 360 measured in degrees, minutes, and seconds

Bearing Direction measured from North or South towards East or West up to 90 in degrees, minutes, and seconds

Altitude angle Angle formed by the rays of the sun and the Earth’s surface

Protective covenant A written agreement to provide the orderly development of a tract