Category: Design
Prepared by Eng. Ahmed Fathy, Projects Manager ·
Definition
The site plan shows the plot boundaries and dimensions, the building's position within them, setbacks, entrances and parking, boundary walls, ground and street levels, and the location of tanks, electrical rooms and drainage.
Why it matters on a project
It is the first drawing the permitting authority checks, and it ties the design to the ground. Its errors carry into setting out and show up in excavation or the entrance level.
Measurement and pricing
It gives the boundary wall length, external paving and planting areas and excavation, each priced in the BOQ in its own unit.
Common mistake
Drawing the site plan without a recent survey of the plot, so dimensions or levels differ on site.
Frequently asked questions
What is the difference between a site plan and a survey?
The survey records the plot as it is with dimensions and levels, and the site plan places the design on it.
Does the site plan need a set scale?
It is usually drawn at 1:100 or 1:200 depending on plot size, with north point and street names.
Related terms
- SetbackThe required distance between the plot boundary and the building line.
- LevelThe vertical height of a point relative to a datum (zero level).
- Construction drawingsDetailed drawings used to build the work on site after design approval, including dimensions, levels and details.
- BackfillRefilling excavations around foundations with suitable soil in compacted layers.
Read next
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