2025 Survey Costs (ex VAT)
| Property | Standard | Fast Track (+25%) | Rush (+50%) | | --- | --- | --- | --- | | 2–3 bed | £400–£600 | £500–£750 | £600–£900 | | 4+ bed | £500–£800 | £625–£1,000 | £750–£1,200 | | Commercial | £800–£1,500 | £1,000–£1,875 | £1,200–£2,250 |
Survey Deliverables Reference
| Deliverable | Format | Use | | --- | --- | --- | | Floor plans | DWG + PDF | Design reference | | Elevations | DWG + PDF | Planning submission | | Sections | DWG + PDF | Building regulations | | Site plan | DWG + PDF | Planning boundary |
What Is a Point Cloud? A Visual Explainer for Non-Technical Clients
A point cloud is a digital record of a building or site created by a laser scanner. It is the starting point for accurate existing drawings and BIM models. This article explains point clouds in plain English for clients who need to understand the technology without becoming surveyors.
The Simple Explanation
Imagine you are standing in a room with your eyes closed, and someone describes the room to you by pointing at every surface. They describe where the walls are, where the floor is, where the ceiling is, where the windows and doors are. They describe the room in extraordinary detail — millions of points.
Now imagine that description is stored in a computer as a collection of coordinates — each point has a position in three-dimensional space. That collection of points is a point cloud.
A point cloud is quite literally a cloud of points. Each point represents a position on a surface. Millions of points together create a detailed digital picture of the building.
How a Point Cloud Is Created
A laser scanner creates a point cloud by shining a laser beam and measuring where it hits surfaces. The scanner rotates, pointing the laser in all directions, capturing millions of measurements per second.
For each measurement, the scanner records: where the point is in space — its three-dimensional coordinates, and what the laser found — the surface it hit.
The scanner is moved to different positions throughout the building. Each position captures the view from that position. The scans are combined — registered — into a single point cloud showing the entire building.
The process takes hours rather than days. A comprehensive scan of a building may take a few hours on site. Processing the data takes additional time.
What a Point Cloud Looks Like
A point cloud looks like a three-dimensional representation of the building. When viewed on a computer screen, you can rotate the view, zoom in and out, and examine any part of the building in detail.
From a distance, a point cloud looks like a solid building. Move closer and you can see individual points — a cloud of dots making up the surfaces. Move closer still and the dots become separate — you can see the gaps between them.
The density of points — how many points per square metre — determines how detailed the point cloud is. Dense point clouds capture fine details. Sparse point clouds capture only large features.
Why Point Clouds Are Useful
Point clouds are useful because they capture everything. Traditional surveys sample the building — measuring specific points. Point clouds capture every surface.
This means: nothing is missed. All surfaces are recorded. Hidden features are discovered before construction rather than during. The data is objective — it shows what is actually there, not what was assumed to be there.
Point clouds can be used many times. Once captured, the point cloud can be processed to produce drawings, BIM models, and analysis. Different team members can use the same point cloud for different purposes.
From Point Cloud to Drawings
Point clouds are processed to create useful deliverables:
BIM models: A technician looks at the point cloud and draws building elements — walls, floors, windows — using the point cloud as a guide. The result is a BIM model showing the building in three dimensions with all elements classified.
Drawings: The BIM model is used to produce 2D drawings — floor plans, elevations, sections. These drawings are accurate because they are derived from the point cloud.
Point cloud visualisation: The raw point cloud can be used as a reference. Designers work with the point cloud in BIM software, using it to verify designs against actual conditions.
Why Not Just Use Photographs?
Photographs capture visual information. Point clouds capture geometric information — precise positions and dimensions.
A photograph tells you what something looks like. A point cloud tells you exactly where something is. For construction and design, geometric information is more valuable than visual information.
Point clouds capture dimensions accurately. Photographs cannot be reliably measured. A point cloud provides data that can be used for design, construction, and verification.
What Can Point Clouds Be Used For?
Point clouds can be used for many purposes:
Design base: Architects and engineers use point clouds as the base for design work. They show exactly what exists before design begins.
BIM modelling: BIM models are developed from point cloud data. The BIM model reflects actual conditions.
Clash detection: MEP designs are checked against point clouds of existing conditions to identify potential clashes before construction.
As-built verification: Completed construction is scanned and compared with design to verify what was built.
Heritage recording: Detailed point clouds provide permanent records of heritage buildings for conservation and restoration.
FM documentation: Point cloud data supports facilities management and future alterations.
Point Cloud Limitations
Point clouds have limitations:
Hidden areas: The laser cannot see through walls. Areas hidden behind walls, above ceilings, or inside cupboards are not captured.
Colour interpretation: Point clouds capture colour but not material properties. Colour helps identify materials but does not replace specification.
Processing required: Point clouds require processing to produce useful deliverables — drawings and BIM models. Raw point cloud data is not immediately usable for design.
Understanding limitations helps set realistic expectations for point cloud survey projects.
Fixed-Fee Point Cloud Surveys from icelabz
icelabz provides point cloud surveys as part of scan-to-BIM services. The point cloud is captured, processed, and converted into BIM models and drawings as required.
All work is fixed-fee with no hidden charges. Contact icelabz with your project requirements.