# Extell Development: developer facts on record

Canonical page: https://kolaboro.com/developers/extell-development/
Data of 2026-11-13. Licence: CC BY 4.0, attribute "Kolaboro" and link the page.
Rules: facts only, each with its source on the project pages. Kolaboro gives no verdicts about a named company. The developer can reply with documents: https://kolaboro.com/developers/reply/

## Quick answer {#answer}

Extell Development has 1 project tracked by Kolaboro in Deer Valley (0 reviewed). Handover date on record: 1 of 1. Past the first handover date on record: 0. Permit or licence number published: 0 of 1. Median transparency score of its projects: 20 of 100.

## Projects {#projects}

- [Four Seasons Private Residences Deer Valley](https://kolaboro.com/projects/four-seasons-private-residences-deer-valley/): Four Seasons Private Residences Deer Valley is listed as off-plan in Deer Valley, Park City, Utah, Deer Valley, USA, by Extell Development. The handover date on record is 2028. No permit number is published. Transparency score: 20 of 100. Not yet reviewed by Kolaboro (added 12 Nov 2026). Last checked 12 Nov 2026. Answers: https://kolaboro.com/answers/four-seasons-private-residences-deer-valley.md

## Right of reply {#reply}

Developers never pay Kolaboro. To add a document or correct a fact: https://kolaboro.com/developers/reply/ . Public dashboard of what is missing: https://kolaboro.com/developers/extell-development/dashboard/

## How to cite {#cite}

Kolaboro, "Extell Development: developer facts on record", https://kolaboro.com/answers/developer/extell-development.md, data of 2026-11-13, CC BY 4.0.