Architectural Visualisation: What It Is, How It Works and What It Costs in the UK

Archviz, CGI and rendering: what the words mean

Archviz is the trade's shorthand, and 3D architectural visualisation is the same discipline spelt out in full. Architectural rendering means either the whole field or, precisely, the computing step in which software calculates light through a modelled scene. A CGI (computer-generated image) is what the client receives, and an artist's impression is the label printed beside it so a buyer knows it is not a photograph.

British practices and UK planning documents write visualisation, while American software vendors write architectural visualization; the work is identical. It is not a technical drawing, which describes a building so it can be priced and built, and it is not a concept sketch, which suggests a mood. A CGI commits to real materials, real daylight and real neighbours.

The eight types of architectural visualisation

Most commissions combine several of these from one model. Each type names the service page that covers it in detail.

How a visualisation is made, in six steps

Every project follows the same order, which makes reviews easy to plan.

Why projects use architectural visualisation

Planning. An eye-level view answers questions about height, massing and materials before they become objections. Visuals support a Design and Access Statement, help a planning committee read a scheme, and show the effect on a conservation area or the setting of a listed building. In England applications are decided against the local plan, with the National Planning Policy Framework (NPPF) as a material consideration, and your local planning authority's validation list says what it expects. Our guide to CGIs for planning applications covers what to submit.

Pre-sales. Developers commission property CGIs because homes sold off-plan are sold from images, and one model serves the brochure, portal listing, hoarding and marketing suite.

Tender and funding. Contractors include visuals in tender submissions, and developers show them to lenders, investors and joint-venture partners when a project is being funded.

Design decisions. Brick, cladding, glazing and lighting choices cost far less to change on a model than on scaffolding, and a photoreal view exposes problems the drawings hide, such as a window facing a neighbour's bedroom.

Marketing and leasing. Agents pre-let offices and logistics space from CGIs, hotel and student-accommodation operators open bookings before handover, and brands build catalogues without a photoshoot.

What each type of visualisation is priced at

These are published starting prices for a standard scope; the figure for your project is fixed in writing before work begins.

Sets of five images or more are priced as a package. What moves a quote up or down is set out in our guide to 3D rendering cost in the UK. By type:

• Exterior CGI: from £295 per image.
• Interior CGI: from £225 per image.
• Aerial or masterplan CGI: from £695 per image.
• 3D floor plan: from £395 per plan.
• Animation: £45 per second, with a 30-second minimum.
• Virtual staging: from £95 per room.
• Photomontage and verified views: quoted per project, with the method documented.
• Product CGI: a fixed quote from your CAD files or photographs.

Where architectural visualisation came from, and where it is going

Before computers, perspective artists painted schemes from the plans, and the 'artist's impression' label on hoardings is their legacy. CGI replaced hand perspectives through the 1990s and 2000s, and six developments have shaped the work since.

BIM. Architects increasingly design in Revit or ArchiCAD, so a visualiser can start from the design team's own model and keep images in step with design changes.

Render farms. Networked machines calculate in hours what one workstation would take days to produce, which makes 4K film practical on an ordinary programme.

Photogrammetry. Overlapping photographs, often taken from a drone, become a measured 3D mesh of an existing site, so context is captured rather than approximated.

Digital twins. A live model linked to sensor and maintenance data carries the design into operation, and some building owners now ask for visualisation models that can grow into one.

Real-time engines. Game-engine technology produces near-photoreal images at interactive speed, moving design review towards a live model explored in the meeting.

AI-assisted rendering. In this studio the role of AI is deliberately narrow: AI-assisted tools may speed up entourage (people, planting and cars), sky and backplate work, or upscaling. The model, the materials, the cameras and every planning-grade image are built by our artists from your drawings, and nothing in a verified view is generated. The reason is accuracy: generative tools invent geometry, and an image a planning officer or a buyer relies on has to match the drawings.

Commissioning visualisation that works first time

Decide what each image is for, because a planning view and a brochure hero need different cameras and weather. Send complete drawings and a locked finishes schedule, and name one approver. If the process is new to you, read what 3D rendering is first.

Keep the images honest: no outlook the flat will not have, no planting at thirty years' growth, no neighbouring building removed.