What is an As-built survey?
An as-built survey depicts a property in its current state, whether during or after construction. PPH3D’s licensed professional land surveyors can assist you with the execution and interpretation of your as-built survey.
What can an as-built survey help you with?
When conducting an as-built survey, accuracy in mapping the changes is critical. It can document hidden piping, underground utilities, and conduits when completed accurately. A tunnel construction project is a good example. An as-built survey can be performed to ensure that the tunnel structures’ tolerances are correct and that the specified clearances are adequate for their intended purpose.
The technique is to have another contractor perform the as-built survey to verify the existing condition’s documentation. It is intended to depict the conditions of the work as it was built. As you know, you must present the final as-built survey to obtain the building’s Certificate of Occupancy (CO). Some states have a strict requirement for an accurate as-built survey. This will confirm that the building was built in accordance with the approved plans.
As-built surveys serve a variety of functions and can be used to meet requirements in a wide range of projects. Normally, drainage authorities require as-built sewer records. Steel beams may need to be located by local authorities. A survey is a critical component of a contractor’s scope of work.
An as-built survey should be performed at the start of the construction process. Some contractors are careless and staple illegible drawings to documents. You should avoid making this costly mistake because you will discover that you cannot obtain your certificate of occupancy without the as-built survey.
The Functions of As-Built Surveys
– To act as a one-stop shop for all documentation and direct changes. As a result, the document is constantly updated as the work progresses.
– As a reference and certified record of what was built. This means the document can be used as a reference for future improvements even after the construction is finished. This facilitates troubleshooting and locating hidden features. The following modifications are meticulously recorded or documented.
– Drawings for demolition that can be repackaged if improvements are no longer needed. This may be part of the new contract. Help save the cost of new drafts for the new owner.
– To be a record of the history of land use. The as-constructed becomes a paper of what existed.
Process of as-built surveys
The As-Built survey can be tailored to the needs of the client by PPH3D’s team of professional surveyors. An As-built survey can be simple, depicting only the level of detail required by the client for a specific phase of the project. The client may also request a higher level of detail, including elevations and contours, street cross sections, and detailed sketches of sewer and storm drain depths and pipe sizes.
Based on a review of agency and service provider documentation, the As-Built survey can be expanded to a more comprehensive Design Survey, which includes mapping of existing underground utilities. This survey is detailed enough that engineers or architects can use it for civil design purposes throughout the development process.
PPH3D provides clients with precise As-Built surveys showing exactly what has been completed by a deadline. This can be a useful project management tool for adjusting construction schedules as needed and planning subcontractor work schedules and payments.
As-built survey types
Certified surveyors from PPH3D can provide the full range of surveying services that may be required at various points during construction projects, including:
- Engineering Design Surveys by ALTA
- Surveys for Construction Staking and Site Layout
- Surveys of As-Built Structures
- Surveys of Topography
- Surveys of Boundaries
- Surveys on Accessibility and the Americans with Disabilities Act
- Surveys for Construction Certification / Verification
- Surveys of the Waters
- Surveys of Global Positioning Systems (GPS) and many others
How much does an as-built survey cost?
The average cost of an as-built survey ranges from $600 to $1,000, depending on the size of the home. A professional surveyor will create a three-dimensional rendering of your home using lasers to generate a map of it automatically. This method generates highly accurate interior and exterior 3D blueprints.
