A developer's guide to 3D real estate renderings: types, use cases, the CAD-to-render process, quality levels, and costs for interior & exterior CGI.
For a developer, the hardest sale is the one for a building that isn't there yet. Floor plans and elevations make sense to architects, but buyers, investors, and planning committees respond to images they can feel. 3D real estate renderings turn a set of drawings into a photorealistic view of the finished property — months or years before the first brick is laid.
What 3D real estate renderings are
A 3D rendering is a computer-generated image built from CAD files, floor plans, or a 3D model of the property. Materials, lighting, landscaping, and time of day are all controllable, so the same model can produce a sunny exterior, a dusk hero shot, or a cutaway of a single apartment. Unlike a photograph, a render shows something that may not physically exist — which is exactly why developers rely on it.
Types of 3D rendering
| Type | Shows | Best for |
|---|---|---|
| Interior CGI | Furnished rooms, finishes, light | Pre-selling units, brochures |
| Exterior CGI | Facade, materials, street context | Marketing, planning applications |
| Aerial CGI | Whole site or masterplan from above | Investor decks, large developments |
| 3D floor plans | Layout with depth & furniture | Helping buyers read the space |
Most developments use a mix. A scheme might pair an aerial CGI of the masterplan with exterior shots of each block and a handful of interior renders for the show units. For commercial schemes specifically, see commercial real estate photography for how CGI and photography work together once a building is complete.
Use cases for developers
- Pre-let & pre-sale marketing: fill units before completion using imagery of the finished product.
- Planning applications: help committees and the public visualize a scheme in its real context.
- Investor presentations: communicate scale and ambition in a single, persuasive image.
- Brochures & signage: hoarding graphics and sales-suite materials that look finished.
The process: from CAD to finished render
- Brief & assets You supply CAD files, plans, elevations, material specs, and style references.
- 3D modeling The geometry of the building and surroundings is built to scale from your drawings.
- Materials & lighting Finishes, glazing, landscaping, and a lighting scheme (e.g. dusk or clear day) are applied.
- Draft render & review A grey or draft view is shared so you can correct layout, angle, and materials early.
- Final render & post The high-resolution image is rendered and finished with color grading and entourage (people, cars, planting).
Quality levels — what to look for
Not every render needs to be a magazine-grade hero image. Match the quality to the purpose:
- Schematic: clean, simple massing and materials — fast, good for early planning.
- Marketing-grade: realistic materials, lighting, and entourage — the workhorse for sales.
- Photorealistic hero: maximum detail, atmosphere, and post-production — for the flagship campaign image.
Signs of a strong render: believable scale, light that behaves correctly (soft shadows, accurate reflections), materials that read as real, and entourage that supports rather than distracts.
Cost breakdown
Pricing scales with complexity, detail level, and the number of views. As a general guide to relative cost:
| Render type | Relative cost | Drivers |
|---|---|---|
| Interior CGI | $ | Single room, controlled scene |
| Exterior CGI | $$ | Facade detail, context, landscaping |
| Aerial CGI | $$$ | Whole site, multiple buildings, terrain |
Because every scheme is different, exact pricing comes from your drawings. VizCraft produces interior, exterior, and aerial CGI plus 3D floor plans, with a 48–72 hour turnaround on typical projects and unlimited revisions. Send your CAD files for a quote.