Residential developers carry a marketing problem almost no other business has. They have to sell apartments months, sometimes years, before a building is finished, when all a buyer can see is a floor plan and a bare render. YIT Slovakia, the Bratislava arm of the Finnish developer YIT and one of the most established residential builders in the city, works with MeltFlex AI on exactly that gap. It uses MeltFlex across the whole project: staging interiors, visualizing exteriors and producing photorealistic visuals and short videos, from interior walkthroughs to aerial flythroughs of the building, the kind of content a developer needs long before a unit is built or furnished. YIT Slovakia and MeltFlex shared the collaboration on LinkedIn.
This is a look at how AI visualization fits a residential developer’s marketing, using YIT Slovakia as the example. We have kept it to what is verifiable: public facts about YIT, the capabilities MeltFlex actually ships, and the workflow a developer runs. We do not publish private figures, so you will not find invented time-saved or cost-cut numbers here.
An aerial video of a YIT development in Bratislava, the kind of exterior flythrough MeltFlex produces alongside interior walkthroughs.
At a glance
- Client: YIT Slovakia, the Bratislava arm of YIT, a Helsinki-listed developer that is one of the largest in Northern Europe with more than 110 years of history.
- What they use it for: marketing visualization across the whole project, staging interiors, visualizing exteriors and creating walkthrough and aerial video before the buildings are finished.
- How it works: one workflow stages, restyles and animates any photo or render, with no prompting and no separate 3D pipeline.
- Why it matters: developers have to market units that do not exist yet, so AI visualization replaces slow, per-unit 3D studio work.
Who YIT Slovakia is and what they build
YIT Slovakia is the local arm of YIT Corporation, a Helsinki-listed developer and one of the largest construction and urban development companies in Northern Europe. The group has more than a century of history and operates across Finland, the Baltics, Poland, the Czech Republic and Slovakia. In Bratislava, YIT develops and sells residential apartments alongside office and retail space.
Its best-known work in the city sits in the Ružinov district: residential projects such as NUPPU, ZWIRN and ROZETA, plus the ZWIRN office building and the restored PRADIAREŇ 1900. YIT also offers buyers custom interior packages, a service that turns a bare apartment into a finished home. The detail that matters for this article is simple: YIT markets a large number of apartments, in many different layouts and finishes, across long timelines. That is the exact shape of problem AI visualization is good at.
Why apartment marketing needs visuals before the building exists
A developer of YIT’s scale is never selling a single flat. One project can carry dozens of layouts, finishes and view types, and each one needs its own marketing material: listing images, brochure spreads, sales-gallery boards, social posts and, increasingly, video. Most of it has to be ready while the building is still a construction site.
The traditional way to produce that is to commission a 3D visualization studio for every unit type. It works, but it is slow and expensive. Each render takes days, every revision costs again, and when the work is spread across several studios the style drifts, so a one-bedroom and a penthouse in the same project can end up looking like different brands. For a marketing team trying to hold one identity across a whole development, that inconsistency is a real problem, not a cosmetic one. This is the gap AI visualization is built to fill.
How YIT Slovakia uses MeltFlex AI for marketing
MeltFlex fits a developer’s marketing workflow because it does the whole job in one place. You give it a photo of a show flat, a bare render, or an empty room, and it furnishes and restyles the space into a photorealistic visual, then turns that same visual into a short video. It does the same for the building from the outside. No prompt-writing, no separate 3D pipeline, no second tool for the video. For a residential marketing team, the jobs that covers are:
- Exterior visualization and aerial video. AI exterior design handles facades, surroundings and the whole building, and AI video turns a still into an aerial flythrough like the one above. That is how a project gets sold from the skyline and the street before it tops out.
- Pre-sales apartment staging. AI interior design and photo to render furnish and style a unit before it is built or physically staged, so listings and brochures can launch early with images that sell a finished home, not an empty shell.
- Interior walkthrough video. The same AI video step turns a single interior still into a slow, filmed-looking clip. Short property video is what performs on listing portals and social channels, and here it comes from the same step as the image.
- Interior options on the buyer’s own unit. Because MeltFlex restyles a room in minutes, a developer that sells custom interior packages can show the same apartment in several finishes, so buyers see the choices applied to their actual layout rather than a generic catalogue.
- A consistent visual identity. Because every visual runs through one tool, the exterior, the lobby and a family flat share one look, which is what keeps a development feeling like a single brand rather than a folder of mismatched renders.
To be clear about what this article is not claiming: we do not have YIT’s internal numbers, so we are describing the marketing jobs MeltFlex handles for a developer of this kind, not a set of private results.
The workflow, end to end
The process is deliberately simple, which is the point. A marketing team can run it without a visualization specialist on staff:
- Upload. Drop in a photo of the unit, a render, or an empty room.
- Stage and restyle. MeltFlex furnishes the space and applies a consistent style, so every unit type feels like the same product.
- Show the options. Re-run the same room in different finishes to present interior packages on the buyer’s actual layout.
- Animate. Turn any finished visual into a short video, an interior walkthrough or an exterior flythrough, for the listing or a social clip.
- Reuse. Apply the same look to the next unit type, instead of writing another studio brief.
Why AI visualization fits real estate so well
There is a quiet reason AI video suits property better than almost any other category. Most of what makes AI footage look fake comes from people and fast motion: distorted faces, broken hands, physics that slips. A property video has none of that. Whether it is a slow camera glide across a still room or an aerial pass around the building, it is steady, architectural motion, which is exactly what current models handle well. The output looks genuinely filmed, and a marketing team gets interior walkthroughs and exterior flythroughs that feel broadcast quality without a crew, a drone permit or a shoot day.
The same logic applies to staging. An AI model only has to furnish a static room convincingly, not animate a person, so the believable-image bar is one it can actually clear. That is why AI visualization has landed in real estate marketing faster than in most creative fields, and why a developer can treat it as a standard part of the marketing stack rather than an experiment.
What this means for other developers and agencies
YIT is a large developer, but nothing about this needs that scale. The same loop, a photo in and a furnished visual plus walkthrough out, works just as well for a single boutique project, a regional agency, or an estate agent staging a resale. If you are marketing apartments that are not built or furnished yet, and you want consistent images and video without the studio cost and lead time, that is the job MeltFlex was built for. You can try it free on your own unit before deciding.
Frequently asked questions
Who is YIT Slovakia?
YIT Slovakia is the Bratislava arm of YIT Corporation, a Helsinki-listed developer and one of the largest construction and urban development companies in Northern Europe, with more than a century of history. In Slovakia it develops and sells residential apartments, offices and retail space, with projects such as NUPPU, ZWIRN and ROZETA in Ružinov.
How does a residential developer use MeltFlex for marketing?
A developer feeds MeltFlex a photo, a bare render or an empty room, and it furnishes interiors or visualizes the exterior into a photorealistic image, then turns that visual into a short video, an interior walkthrough or an aerial flythrough of the building. That gives a marketing team listing images, brochure and sales-gallery visuals and social video for every layout, without a separate studio or shoot for each one.
Can MeltFlex show different interior options for the same apartment?
Yes. Because MeltFlex restyles a space in minutes, the same room can be shown in several finishes and furniture styles, so buyers see the choices applied to their actual unit rather than a generic mood board. That suits developers who sell custom interior packages.
How much does it cost to try?
MeltFlex has a free plan, so you can stage your first unit and generate a walkthrough before deciding. Start free here.
Sources
Company facts in this article are drawn from YIT’s own materials, and the partnership is documented in the post shared on LinkedIn.
