Exploring Architectural Site Plans: AS1, AS2, and Beyond

Detailing Architectural Site Plans with Contours and Keynotes

Learn how to present a comprehensive architectural site plan, including aspects like the property line, house measurements, fuel modification lines, contours, and keynotes. Understand how varying the scale of drawings and including extra details can provide valuable information to regulatory agencies.

Key Insights

  • The site plan can be presented at different scales to show varying levels of detail. The scales used in the article include one inch equals 100 feet, one inch equals 60 feet, and one-eighth of an inch equals a foot.
  • Keynotes are used to provide additional information about specific elements on the site plan, such as the location of the residence, parking pad, power pole, and property lines. These keynotes may differ depending on the level of detail provided in each drawing.
  • Elements like the distance from the property line, setback measurements, and contours showing changes in the property's topography can provide crucial information to regulatory agencies. Including a legend can further clarify what each symbol or shade represents on the plan.

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Let's continue on with the next sheet in our set of drawings. This will be our AS1, which is our architectural site plan. Now I'm going to tab back to the first sheet.

You can see that I have a site plan here, and the site plan is presented at one inch equals 100 feet. This drawing, the actual electronics that I'm showing here are the same as the electronics that I'm showing in the AS1.0 file. The only difference is I'm showing more information.

Now one of the reasons is because if I zoom in, you can see that this site plan is being presented at one inch equals 60 feet, as opposed to the one inch equals 100 feet that we were showing before. So here I have my house, I have the property line, I'm showing the distance from the property line, I have my fuel modification lines, but you can also see the contours. This is how the topography of the property changes over distance.

If you zoom in, you can see the different elevations that are called out, and what I'm doing is every five feet I'm showing the dark contour lines, and I'm also showing the one foot intervals as I go along. Now what you'll notice here is I'm showing the number one, the number two in a box, and the number seven over here. If I zoom back, you will see that I have my keynotes on the top right hand corner of the drawing.

So keynote one was the location of the residence, keynote two the parking pad, and number seven the location of a power pole. So again on this drawing I'm showing it at a larger scale. I'm having more keynotes to again tell the regulatory agency more information about the property.

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Again it's the same site plan. I'm showing contours and more keynotes because this is again more information the regulatory agency is going to want to know about. I also have a note that says see enlarged plan sheet AS2.

If I go down to sheet AS2, you can see I have yet another enlarged plan. Now the scale of this drawing, let's zoom in, one-eighth of an inch equals a foot. So what I've done is I've blown up the image even more.

I'm now at an architectural scale. So again I have the house. I'm showing the property lines over here.

I'm showing the distance from the property line. I'm showing how far my setback measurement is and again more dimensions. Once again I have more keynotes and these keynotes are not necessarily the same keynotes that we had on the previous site plan, but you can see down here I have some notes.

You'll notice that I have notes. I have a bubble. I have a delta, and I also have a legend down here.

So you can see how the house is shaded in gray. So over here on the legend I'm saying that what's in gray is the proposed residence. I'm showing the proposed parking pad.

There's my parking pad over there. If I slide back to where I was, you can see I'm showing the property line and the setback.

photo of Al Whitley

Al Whitley

AutoCAD and Blueprint Reading Instructor

Al was the Founder and CEO of VDCI | cadteacher for over 20 years. Al passed away in August of 2020. Al’s vision was for the advancement and employment of aspiring young professionals in the Architecture, Engineering and Construction (AEC) industries.

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