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PowerPoint Presentation. Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois. Chapter 10. Plot Plans. Chapter 10 Overview. Introduction Property Lines Contour Lines Topographical Features Location of the Structure on the Site Drawing a Plot Plan Manually Landscape Plans
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PowerPointPresentation PublisherThe Goodheart-Willcox Co., Inc.Tinley Park, Illinois 1
Chapter 10 Plot Plans 2
Chapter 10 Overview • Introduction • Property Lines • Contour Lines • Topographical Features • Location of the Structure on the Site • Drawing a Plot Plan Manually • Landscape Plans • Using CADD to Draw a Plot Plan 3
Learning Objectives • Identify the various features shown on a typical plot plan. • Visualize land elevations from contour lines. • Recognize typical topographical symbols and apply them to site considerations. (continued) 4
Learning Objectives • Properly locate a building on a site. • Draw a plot plan using correct symbols and conventions. • Draw a plot plan using CADD. 5
Introduction to Plot Plans • A plot plan is a drawing that shows the site, location, and orientation of the buildings on the property. • Uses information provided by a surveyor and recorded on a site plan. • Shows several specific features related to the site and buildings on the property. 6
Plot Plan Features • Plot plans contain: • Length and bearing (direction) of each property line. • Location, outline, and size of buildings on the site. • Contour of the land. • Elevation of property corners and contour lines. • Meridian arrow (north symbol). 8
Plot Plan Features • Plot plans also show: • Trees, shrubs, streams, and gardens. • Streets, driveways, sidewalks, and patios. • Location of utilities. • Easements for utilities and drainage. • Well, septic tank, and leach field. • Fences and retaining walls. • Lot number or address of the site. • Scale of the drawing. 9
Property Lines • Property lines define the site boundaries. • Length and bearing are identified. • Measured to 1/100 foot. • Abenchmark is shown with a symbol and represents a point of reference. • The order of drawing property lines is clockwise. 10
Property Line Designation • This property line is 175.25' long and has a bearing of N 89° E. 11
Bearings 12
Benchmarks 13
Contour Lines • Contour lines connect points that have the same elevation. • Help describe the topography of the site by defining shape and elevation. • Reference is mean sea levelor a selected point. • Contour lines are the result of a survey. • They are plotted from a grid of elevations. 15
Contour Terms and Features • Contour intervalis the vertical distance between two adjacent contour lines. • Closely spaced contour lines indicate a steep slope. • Contours that are smooth and parallel show that the ground surface is even. • Closed contour lines represent summits and depressions. 16
Contour Terms and Features • Contour lines of different elevations do not cross. • Contour lines cross watersheds and ridge lines at right angles. 17
Contour Lines • This illustration shows a five foot contour interval. 18
Contour Lines • The relative space of contour lines represents the slope angle. 19
Contour Lines • Contour lines show relative roughness of the land as well as the elevation. 20
Contour Lines • Summits and depressions are represented by closed contour lines. 21
Contour Lines • Ridges and valleys should be identified using the proper symbols. 22
Contour Lines • Show estimated contours with a dashed line. Surveyed contours are represented by solid or long dashed lines. 23
Contour Lines • Contour lines plotted from an elevation grid using data supplied by a surveyor. 24
Topographical Features • Topographical features include: • Trees, shrubs, streams, roads, utilities, fences, and similar features. • These features are represented by symbols; most are standardized. • Nonstandard symbols should appear with an explanation in a legend on the drawing. 25
Topographical Symbols • When color is used with topographical symbols, follow these guidelines. • Black is used for lettering and human-built works, such as roads, houses, etc. • Brown represents all land forms such as contour lines. • Blue is used for water features. • Green is for vegetation. 27
Locating the Structure on Site • Analyze the site to determine the ideal location for the structure. • Analysis should include: • Natural contour, trees, view. • Surrounding houses, code restrictions. • Style of house to be built. • Solar orientation, winds. • Placement of well and septic system. • Size and shape of the site. 28
Locating the Structure on Site • Once the location is decided on, the structure can be drawn on the plot plan. • There are three commonly accepted methods of representing a house on the plot plan: • Lay out exterior walls and shade area. • Draw a typical roof plan. • Draw exterior walls thickened. • Dimension the location of house on site. 29
Locating the Structure on Site • First method of locating a house on a plot plan. 30
Locating the Structure on Site • Second method of locating a house on a plot plan. 31
Locating the Structure on Site • Third method of locating a house on a plot plan. 32
Locating the Structure on Site • Dimensioning a house that is not parallel to a lot line. 33
Plot Plan Manual Drawing Procedure • Select a scale to provide the largest drawing on the paper size. • Lay out property lines. Add length and bearing of each property line. • Add scale and meridian arrow. • Select a contour interval and plot the contour lines lightly. • Letter the elevation of each contour line and property corner. (continued) 34
Plot Plan Manual Drawing Procedure • Property lines located and identified; meridian arrow, scale, contour lines, and corner elevations shown. (continued) 35
Plot Plan Manual Drawing Procedure • Locate the house on the site and dimension the overall length and width of the house. • Dimension the distance from the house to the two adjacent property lines. • Identify the elevation of a reference corner of the house. (continued) 36
Plot Plan Manual Drawing Procedure • Draw surrounding features such as the driveway, sidewalks, and patios. • Determine the centerline of the street and location of utilities using proper symbols. • Add the well and septic system, if required. (continued) 37
Plot Plan Manual Drawing Procedure • The house, drive, and patio are positioned on the site and dimensioned. 38
Plot Plan Manual Drawing Procedure • Draw other topographical features such as trees and shrubs. • Darken in contour lines. • Check your drawing to be sure that it is complete. (continued) 39
Plot Plan Manual Drawing Procedure • The completed plot plan. 40
Typical Plot Plan • A plot plan of a large site and house with its own septic system and well. 41
Landscape Plans • The landscape plan is designed to show the type and placement of trees, shrubs, flowers, and pools on the site. • Provides an excellent way to plan the total setting for the home. • Uses symbols to represent plants and key them to a chart. • Repeats much of the information on the plot plan. 42
Landscape Plan • Typical landscape plan. 43
Landscape Plan • Result of good planning. 44 (Elk Corporation)
CADD Plot Plans • Site plans, plot plans, and landscape plans can be drawn using CADD. • General-purpose CADD can be used. • Application specific software facilitates drawing plot plans. • Compatibility is a concern when using two or more packages together. 45
CADD Plot Plans • This computer-generated rendering depicts the relationship between the structure and the site. 46 (Helmuth A. Geiser, Member AIBD)
CADD Plot Plans • Select the plotting scale for the plot plan that will provide the largest drawing on the size of paper selected. • Lay out the property lines using proper linetypes and symbols. • Show elevations. • Use a separate layer for the property lines. • Locate the buildings on the site. (continued) 47
CADD Plot Plans • The property lines have been drawn and the structure located. (continued) 48
CADD Plot Plans • Draw the contour lines on their own layer and add elevations. • Add the house reference corner location and dimension the location. • Add other house features such as roof lines. • Show the overall dimensions of the house and location on site. (continued) 49
CADD Plot Plans • The house location has been dimensioned. (continued) 50