The Challenge: 320 Empty Units That Do Not Sell Themselves
A residential property developer based in the Home Counties is marketing 320 new-build apartments across four developments. Show flats are physically staged at a cost of £12,000-£18,000 each, but only two units per development get this treatment — eight total. The remaining 312 units are marketed with photographs of empty rooms, which industry data shows generate 73% fewer enquiries than staged properties. Physical staging of all 320 units would cost over £800,000 and is logistically impossible during construction phases. Traditional virtual staging using manual Photoshop compositing costs £80-£150 per image and takes 3-5 days turnaround per image — at 8-12 images per unit, the cost is £960-£1,800 per unit and the total timeline would delay the entire marketing campaign.
The developer needs photorealistic virtual staging at scale: hundreds of images across multiple interior styles (contemporary, Scandi, traditional) to appeal to different buyer demographics. Development plans and interior layouts are commercially sensitive and cannot be shared with third-party staging services pre-launch.
AI Solution: Stable Diffusion Inpainting for Virtual Staging
Stable Diffusion with inpainting capabilities, orchestrated through ComfyUI, takes empty room photographs and fills them with photorealistic furniture, artwork, soft furnishings, and decorative elements. ControlNet ensures that the generated furniture respects the room’s geometry — sofas sit on the floor, artwork hangs on walls, lighting creates realistic shadows. The model can generate the same room in multiple styles from a single photograph, enabling developers to show buyers how a space could work for different lifestyles.
Running on a dedicated GPU server, the pipeline processes empty room photos in batches, generating three style variants per room across all units in a development within hours. A vision model analyses the room geometry to select appropriate furniture scale and placement.
GPU Requirements
Virtual staging using Stable Diffusion XL inpainting generates high-resolution interior images. Each image requires an inpainting pass plus potential upscaling. Processing 320 units at 10 images each across 3 style variants generates 9,600 total images.
| GPU Model | VRAM | Staged Images per Hour | Full Development (9,600 images) |
|---|---|---|---|
| NVIDIA RTX 5090 | 24 GB | ~420 | ~23 hours |
| NVIDIA RTX 6000 Pro | 48 GB | ~350 | ~27 hours |
| NVIDIA RTX 6000 Pro | 48 GB | ~470 | ~20 hours |
| NVIDIA RTX 6000 Pro 96 GB | 80 GB | ~600 | ~16 hours |
An RTX 5090 stages the entire four-development portfolio in about a day of processing. Private AI hosting keeps development plans and marketing assets within controlled infrastructure.
Recommended Stack
- Stable Diffusion XL with inpainting for photorealistic furniture generation via ComfyUI.
- ControlNet (depth, canny edge) for geometry-aware furniture placement.
- Style LoRAs trained on professional interior photography for different decor styles.
- Real-ESRGAN for upscaling generated images to print-quality resolution for brochures.
- Batch processing scripts for processing entire developments from a folder of empty room photographs.
For generating property descriptions to accompany staged images, add an LLM via vLLM. Deploy an AI chatbot for buyer enquiry handling on the development website.
Cost Analysis
Physical staging costs £12,000-£18,000 per show flat. Traditional virtual staging costs £80-£150 per image (£960-£1,800 per unit). AI virtual staging on a dedicated GPU reduces the per-image cost to under £0.15, or approximately £15 per unit for 10 images in 3 styles. Staging all 320 units costs under £5,000 total versus £307,000-£576,000 for traditional virtual staging — a 98% cost reduction.
The revenue impact is substantial. Staged listings generate 73% more enquiries than unstaged. Applying staging to 312 previously unstaged units is projected to accelerate sales velocity by 4-6 weeks across the development portfolio, saving the developer £180,000-£270,000 in carrying costs (finance charges on unsold stock).
Getting Started
Photograph 10 representative empty rooms across different room types (living room, bedroom, kitchen, bathroom). Process through the AI staging pipeline with three interior styles. Have your sales team and the interior design consultant blind-evaluate AI-staged images against traditionally staged photographs. Most developers find AI staging indistinguishable from reality in buyer testing within the first round of optimization.
GigaGPU provides UK-based dedicated GPU servers with Stable Diffusion and ComfyUI pre-configured for virtual staging workloads. Scale capacity for portfolio-wide processing.
GigaGPU offers dedicated GPU servers in UK data centres with full data security. Deploy virtual staging on private infrastructure today.
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