We publish the permits we lost.
KADER is an architecture practice in Rotterdam. Six permit applications since 2022, two of them refused, and the whole record is on this website with the week count on every line — because a bureau's refusals tell you more than its awards.
6
filed since 2022
2
both published, with the reasoning
9%–15%
of construction cost, all stages
9
people, Rotterdam
Six projects, one of which is not being built.
Six applications. Two refused. Nothing removed.
| Ref | Project | Filed | Weeks | Outcome |
|---|---|---|---|---|
| OV-2025-1184 | Katendrecht Blok B | Feb 2025 | 18 weeks | Granted |
| OV-2024-0932 | Huis aan de Maas | Mar 2024 | 9 weeks | Refused |
| OV-2024-1077 | Huis aan de Maas (herzien) | Jul 2024 | 11 weeks | Granted |
| OV-2023-0451 | Schoolstraat 12 | Jan 2023 | 14 weeks | Granted |
| OV-2022-2210 | Bergweg dakopbouw | Sep 2022 | 8 weeks | Refused |
| OV-2026-0140 | Delfshaven kade | Jan 2026 | 6 weeks so far | Pending |
Four things this practice will not do.
We will not enter unpaid competitions
An open competition costs a small practice four to six weeks of unpaid work with roughly a one-in-forty chance. We enter paid, shortlisted ones — and we say so publicly, because silence on this is why the model persists.
We will not file a permit we think will be refused
We will tell you it is unlikely, in writing, and let you decide. The Bergweg roof extension on the permit record is exactly that conversation, followed by the client filing anyway.
We will not draw a render we cannot build
Every visual on this site comes from the same model the drawings come from. If the balustrade is 1,000 mm in the image it is 1,000 mm in the detail, and the sky is not doing any work.
We will not take a project without the site supervision stage
Or rather — we will, once, and tell you plainly what happens to the detailing when nobody from the design side is on site. Most of the gap between a good drawing and a poor building lives in that stage.
Bring a site and a budget. We will tell you if it works.
A first conversation is free and often ends with us saying the plot will not take what you want on it. That is a better outcome than a sketch design you cannot build.