Our Services

Measured building survey.
Precision documentation of the built environment.

RICS-standard laser scan surveys of buildings, structures and heritage assets. Floor plans, sections, elevations and 3D point cloud models delivered in CAD and BIM-ready formats to engineering accuracy.

±5mm
Drawing accuracy
RICS
Standard deliverables
CAD
& BIM ready
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What it is

What is a measured building survey?

A measured building survey is a dimensionally accurate record of an existing building. We capture the geometry by terrestrial laser scanning, total station and handheld scanner, and process the data into 2D floor plans, sections and elevations — and, where required, a 3D point cloud, a Revit / IFC model and a federated BIM file.

The survey is the existing-building base that architects, structural engineers, M&E consultants and BIM coordinators work from for refurbishment, conversion, retrofit, listed-building consent, facade remediation, planning applications, facilities management and as-built verification. Every project is delivered under the RICS Surveys of Land, Buildings and Utilities professional statement, with documented control, independent dimensional verification and a full QA record issued alongside the drawings.

Angell Surveys is a RICS-regulated practice (Firm 681790) — verify our registration via the RICS public Find a Surveyor directory.

Measured Building Survey

Accurate, RICS-standard survey documentation.

Our measured building survey service provides accurate 2D and 3D documentation of buildings, structures and heritage assets. Using terrestrial laser scanning (TLS), we capture complete geometric data in a single site visit — delivering floor plans, sections, elevations and 3D models to RICS guidance and client specification.

Scan data is processed to produce clean, dimensionally accurate CAD drawings and BIM-ready point clouds. All survey work is conducted under a documented quality management framework with independent accuracy verification against established control.

We work across the full range of built environment projects — from pre-purchase condition surveys through to listed building documentation, construction verification and facilities management data capture.

Highbury Stadium Square measured facade survey — Revit model render delivered to the client. Former Arsenal stadium, Islington, London.
Recent project Highbury Stadium Square — Facade Measured Survey, Islington →
Capabilities

What we deliver.

Complete building documentation from laser scan data to RICS-standard CAD and BIM deliverables.

Floor Plans, Sections & Elevations

2D CAD deliverables produced from scan data to RICS guidance. Includes room dimensions, structural elements, openings and fittings as specified, at scales from 1:50 to 1:200.

Laser Scan Point Cloud

Full-building TLS survey delivering a geo-referenced, millimetre-accurate point cloud. Suitable for BIM conversion, planning applications and structural assessment.

Roof & External Survey

External elevations, roof geometry and site boundaries captured by TLS and UAV photogrammetry. Combined with internal data for complete and consistent building geometry.

Heritage & Listed Building Survey

Specialist measured survey of historic and listed structures to Historic England guidance. High-density scan data captures complex geometry, decorative features and structural anomalies.

Construction Verification

Pre/post-construction as-built survey to verify work against design intent. Dimensional checking and deviation reporting against BIM or CAD drawings to agreed tolerances.

Facilities Management Data

Structured, attributed floor plans and room data books for FM systems. Area schedules, space categorisation and asset tagging delivered to client specification and format.

Our Process

How we work.

RICS-compliant survey workflow from brief through to checked, issued drawings.

01

Survey Brief

Requirements defined against RICS guidance. Level of detail, drawing standards and coordinate system agreed. Site conditions, access arrangements and heritage sensitivities confirmed.

02

Laser Scan Capture

TLS survey conducted from systematically planned station positions. Target-based registration control established. Complete coverage verified before demobilisation.

03

Processing & CAD Production

Point cloud registered, cleaned and referenced. CAD drawings produced by experienced surveyors from scan data and checked against specification before issue.

04

Issue & Review

Drawings and data issued to agreed format and revision. Random measurement verification included as standard. Revisions accommodated within agreed scope.

Deliverables Specification

What you receive, to what standard.

Every measured building survey ships with this baseline. Optional outputs are added where the project specification requires them.

DeliverableFormatStandard
Floor plansAutoCAD DWG, DXF, PDF1:50 / 1:100 / 1:200 to RICS layering convention
SectionsAutoCAD DWG, DXF, PDFCross and long, consistent scale with plans
ElevationsAutoCAD DWG, DXF, PDFAll faces, fenestration, articulation captured
Point cloud (optional)E57, LAS, LAZ, RCPRegistered, classified, georeferenced
3D BIM model (optional)Revit 2022/2024 (.rvt), IFC 2x3/4LOD 200–400, federated coordinate system
Coordinate system—OSGB36/ODN or contractor-defined site grid
QA documentationPDFControl schedule, accuracy report, layer schedule
Drawing accuracy—±5 mm linear, RICS Surveys of Land, Buildings and Utilities statement
Sector Applications
Commercial Property Heritage & Listed Buildings Residential Development Industrial Healthcare Education Public Sector
Related Services
Service
3D Modelling & Reality Capture
Photogrammetric and LiDAR reality capture producing hosted, measurable 3D models of buildings and structures.
Learn more →
Service
LiDAR & Laser Scanning
High-density point cloud capture providing the raw geometry for CAD drawings, BIM models and structural analysis.
Learn more →
Service
Revit Modelling
Scan-to-BIM conversion of measured building survey data into fully attributed Revit models to specified LOD.
Learn more →
FAQ

Measured building survey questions.

The questions clients ask us most often before instructing a measured building survey.

What is a measured building survey?
A measured building survey is a dimensionally accurate record of an existing building, captured by terrestrial laser scanning, total station and handheld scanning. The deliverables are 2D floor plans, sections and elevations, and optionally a 3D point cloud and Revit/IFC model. The survey is the existing-building base drawing that architects, structural engineers and BIM coordinators work from for refurbishment, conversion, listed-building consent, retrofit, FM data capture and as-built verification.
What deliverables will I receive?
Standard 2D outputs are AutoCAD DWG floor plans, sections and elevations at scales between 1:50 and 1:200, with full dimensions and room references. Optional 3D outputs include a registered E57 or LAS point cloud, a Revit 2022/2024 model at LOD 200–400, and an IFC export for BIM coordination. Every survey ships with a layer schedule, an accuracy statement against control, and PDF preview sheets for review.
What is the difference between a measured building survey and a topographic survey?
A measured building survey records the building — internal floor plans, sections, elevations, ceiling heights and openings. A topographic survey records the site — external levels, contours, boundaries, vegetation and surface features. Development projects with an existing structure on site typically need both: the topographic survey supplies the external ground base, the measured building survey supplies the building geometry. See our topographic survey service for the external complement.
Do you survey listed and heritage buildings?
Yes. Listed and heritage building survey is a regular part of our practice. We use high-density terrestrial laser scanning to capture ornamental detail, decorative features, structural anomalies and complex geometry that conventional measured survey cannot. Deliverables are produced to Historic England Metric Survey Specifications for Cultural Heritage and the RICS Surveys of Land, Buildings and Utilities professional statement. Recent example: the Highbury Stadium Square facade survey (former Arsenal stadium, Islington) — Grade II listed East Stand context.
Will the survey be suitable for a planning application?
Yes. Floor plans are issued at 1:100 with full dimensions, room labels and key heights, with elevations at consistent scale — the format most local planning authorities expect. Where the LPA requires drawings georeferenced to OS National Grid (most do for major applications), survey control is established from GNSS to OSGB36/ODN and threaded through the building control network.
What CAD layering convention and file formats do you deliver in?
Drawings follow the RICS Surveys of Land, Buildings and Utilities layering convention with separate layers for walls, openings, fittings, dimensions, levels, annotation and grid. AutoCAD DWG is standard; DXF and PDF are issued alongside. 3D deliverables: Revit 2022/2024 (.rvt), IFC 2x3 or IFC 4, E57 or LAS point cloud. Coordinate system is project-specified — typically OSGB36/ODN or a contractor-defined site grid.
Are you RICS regulated?
Yes. Angell Surveys is regulated by the Royal Institution of Chartered Surveyors (RICS). Our public RICS Firms profile is at ricsfirms.com/office/681790/Angell-Surveys-Ltd. All measured building survey work follows the RICS Surveys of Land, Buildings and Utilities professional statement with documented control, independent dimensional verification and full QA records issued alongside the deliverables.
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