Surveying is used in construction to accurately measure and map existing conditions of work sites, place reference points to guide new structures, verify locations during building, and ensure projects meet plans. Key surveying tools include theodolites and total stations. In some places, surveying is a licensed profession requiring training, with surveyors overseeing design, maintenance, repair and restoration of buildings.

1. Construction
Surveying

2. Great Pyramid of Giza
• Perfect
square,
north-south
orientation

3. Stonehenge
“Peg and rope” Geometry

4. Objectives
• Survey existing conditions of: the future work
site, existing buildings and infrastructure, and
underground infrastructure whenever possible.
• Place reference points and markers that will
guide the construction of new structures
• Verify the location of structures during
construction
• Check at the end of the construction project to
verify that the work was completed to the
specifications from the plans.

5. Equipment
Theodolite
Total Station

6. Professional Status
• In some countries this is recognised as a
profession, and requires special training.
They are called “Building Surveyors”
• They are in charge of:
o
o
o
o
Design
Maintenance
Repair
Restoration