Time saved
10 minutes per project
No brief to a firm, no further iterations over email, no waiting. You run the analysis while the client sits with you at the table.
For architects & building designers
A sunlight study in 10 minutes. Instead of 10 days.
Stop outsourcing sunlight studies. Do it yourself for your clients — tested against the TNO Light and Strict norms and the Hague and Rotterdam three-step norm. A one-time €29.95 per report.
Plan on about 10 minutes per design iteration.
No subscription. No minimum purchase. €29.95 per report.
Why Schaduwplan
Three reasons to keep it in-house.
Outsourcing costs you time, margin, and control over your design. With Schaduwplan, you keep all three.
Margin
Keep it in-house
Where you now outsource for €300-€500 per project, you pay €29.95 per report. That is margin that stays with you.
Control
Iterate as you design
Adjust height, shape, or orientation and see right away what it does to the sunlight. No waiting on an external firm.
The source data
No guesswork. Government sources.
The same data layers a traditional firm would pull — only without the licence costs or the wait time.
3DBAG
TU Delft + 3DGI
LoD2 building models with roof surfaces, updated each quarter.
AHN (4/5/6)
PDOK + Ellipsis Drive
Actueel Hoogtebestand Nederland (the national elevation dataset) — lidar accurate to a few centimetres. AHN4 (2020–2022) nationwide; AHN5/AHN6 are being rolled out per province.
BAG
Kadaster / PDOK
Addresses and building metadata from the authoritative registry.
PDOK Locatieserver
PDOK
Address autocomplete with disambiguation by street and postcode.
From project to attachment
How a sunlight study fits into your workflow.
Works independently of your CAD tool. Want to run it alongside SketchUp, Archicad, or Revit? You can — we deliver only what the municipality (gemeente) asks for.
- 01
Start a project from an address
Type an address or coordinates. We load the surroundings and the target building automatically from 3DBAG.
- 02
Sketch or import your design
Drag volumes, roof types, recessed facades. Faster than in SketchUp for the single-volume check the municipality wants to see.
- 03
Test against the relevant norms
TNO Light and Strict plus the Hague and Rotterdam three-step norm — calculated at the same time. You see right away which norm your client meets or misses.
- 04
Export the PDF
A sunlight report with north arrow, scale, before/after comparison, and source attribution. Usable directly as an attachment to your permit application.
A second signal
Daylight context alongside the sunlight check.
A quick signal of whether a design removes skylight — before the formal daylight calculation, and as a second line of support toward the municipality (gemeente) or neighbours.
Alongside sun hours, Schaduwplan shows a sky-view indication (Vertical Sky Component) per window: how much sky a window still sees from the outside, before and after the design. Useful as an early signal in the sketch phase, and as a second line of support — under Article 5:37 of the Dutch Civil Code, the court weighs daylight too, not just sun.
It is explicitly not a replacement for the formal daylight calculation. The interior daylight factor (NEN-EN 17037) or the equivalent daylight area (NEN 2057) remains a separate building-physics exercise during design; the sky-view is an exterior measure and a quick first indication. For the statutory daylight requirement, your building-physics consultant provides the definitive figure.
Report
€29.95 per report, one-time
One report per project. No subscription, no minimum purchase, no monthly quota.
- TNO Light + Strict norm
- The Hague + Rotterdam three-step norm
- Before/after comparison per measurement point
- North arrow, scale, and source attribution
- PDF usable directly as an attachment
Questions from firms