As built surveys to record completed construction work

As Built Surveys .

As-Built Surveys document all features and modifications on-site, ensuring compliance with Highways Act sections.

An as built survey records exactly what has been constructed on site, rather than what was originally designed. This gives you an accurate set of drawings once a project is complete, which is often needed for handover, adoption or future maintenance work.

What our as built survey service covers

We carry out as built surveys of roads, drainage, buildings and other completed site features, comparing the finished construction against the original design where needed. This helps identify any changes made on site during the build.

As built survey drawings are often required by local authorities or utility companies before roads and drainage can be formally adopted, so getting this survey right matters.

Why as built surveys are worth getting right

Because an as built site survey becomes the official record of what has actually been built, accuracy matters just as much here as at any other survey stage. Our surveyors take the same careful approach to as built work as they do to topographical and setting out surveys.

If TAG has already carried out the topographical survey and setting out for your project, we already understand the site well, which helps make the as built survey more efficient.

FAQs About As Built Surveys

An as built survey records the actual position and levels of completed construction work, which may differ slightly from the original design drawings.

As built surveys are often required for handover to a local authority, for adoption of roads and drainage, or simply to have an accurate record of what has been constructed for future reference.

As built surveys are usually carried out once construction work is complete, or at key stages before ground is covered over, such as before backfilling drainage.

Local authorities, utility companies and clients themselves often request as built survey drawings, particularly for roads, drainage and other infrastructure.

Yes. As built surveys often follow on from setting out work we have already carried out, giving a consistent record from design through to completion.