Get in touch:
+44(0) 203 5760 165
Traditional as-built surveys often rely on manual measurements that are time-consuming, prone to error, and miss critical details. AJ Digital captures comprehensive 3D laser scans of your existing building, processing this data into accurate digital records that reveal the true conditions on site.
As-built documentation is the process of creating accurate records of existing building conditions, typically after construction is complete or before renovation work begins. Using 3D laser scanning technology, we capture millions of precise measurements to create detailed surveys that show exactly what has been built, including any deviations from the original design.
This documentation can be delivered as point clouds, 2D CAD drawings, or intelligent BIM models, depending on your project requirements and how you intend to use the data.
Get in touch today for a free consultation
Renovation and retrofit projects fail when teams work with outdated or inaccurate information about existing conditions. Our as-built survey services eliminate this risk by providing verified, current data that shows hidden constraints, structural realities, and spatial conflicts before design work begins.
This means you can identify potential issues early, coordinate work across multiple disciplines with confidence, and avoid the costly rework that comes from discovering site conditions don't match your assumptions.
Get in touch today for a free consultation
We begin with comprehensive laser scanning of your site, capturing every detail of the existing structure including architectural features, structural elements, and MEP installations. Our team processes this raw scan data, applying real-world coordinates and cleaning the point cloud to create an accurate digital representation of your building.
Every as-built survey undergoes rigorous quality checks to ensure dimensional accuracy and completeness. We validate measurements, verify spatial relationships, and provide clear documentation that integrates seamlessly with your existing project workflows and meets UK construction standards.
Accurate records of existing conditions prevent expensive surprises during construction by revealing the true state of your building before work begins.
Comprehensive spatial data allows design teams to work confidently without repeated site visits, reducing project timelines and coordination delays.
Detailed as-built records become valuable tools for facility managers, enabling better maintenance planning, space utilisation and future renovations.
Our experienced team delivers as-built survey services across diverse sectors, from heritage buildings requiring sensitive documentation to industrial facilities with complex MEP systems. We combine cutting-edge laser scanning technology with practical construction knowledge to create documentation that truly serves your project needs, not just generic survey outputs.
Non-intrusive survey methods: Laser scanning captures complete building data without disrupting operations or requiring access to difficult areas.
Flexible delivery formats: We provide as-built documentation as point clouds, 2D CAD drawings, or intelligent BIM models, depending on how you need to use the data.
Fast turnaround times: Advanced processing workflows mean you receive accurate documentation quickly, keeping your project on schedule.
Heritage and conservation expertise: Specialised experience documenting listed buildings and sensitive structures where accuracy and care are paramount.
Original construction drawings show how a building was designed and intended to be built. As-built documentation records how it was actually constructed, capturing all the deviations, field changes, and modifications that inevitably occur during a project. Because no building is ever built exactly to the original design, original drawings alone are rarely a reliable record of what actually exists on site, which is why accurate as-built documentation is essential for any future work on a building.
As-built documentation is useful for anyone who needs to understand the current state of a building. This includes architects and engineers planning renovation or retrofit work, contractors who need accurate existing conditions before starting on site, facility managers responsible for maintaining and operating the building, and building owners preparing for future development or disposal. For older buildings especially, where original drawings may be incomplete or no longer accurate, as-built surveys provide the only reliable record of what is actually there.
In many cases, yes. As-built records form part of the handover documentation required at project completion, particularly on public sector and commercial schemes. They are also required to demonstrate compliance with building regulations and, in some circumstances, planning conditions. For buildings subject to the Building Safety Act, accurate as-built information is increasingly important as part of the golden thread of building information that owners are expected to maintain throughout a structure's life.
Both capture the existing conditions of a building, but they serve slightly different purposes. A measured survey is typically commissioned at the start of a project to understand what is there before design work begins. As-built documentation is produced to record what has been constructed, often at the end of a project or after changes have been made to an existing building. In practice, the two can overlap, particularly when laser scanning is used to capture conditions that may not have been formally recorded during construction.
Yes, and it is one of the most valuable long-term uses of accurate as-built records. Facility managers rely on as-built documentation to understand the location of structural elements, MEP systems, and other building components, particularly those hidden above ceilings or behind walls. Having this information readily available reduces the time and cost of maintenance, supports safe planning of future alterations, and helps building operators respond quickly when issues arise.
January 2026 | 3D Modelling, Information Management
Find out more