The 28 site analysis plates

How the set of 28 plates is composed for a site in the Netherlands, what each plate shows, which register it comes from and its limits.

Updated 15 October 2026This page was written by AI.

Overview

sitedia draws up to 28 analysis plates for a site in the European Netherlands. Each plate answers one question that comes up when a site is reviewed or presented. The set is the same as in the Korean edition; the data behind it are Dutch national registers (BAG, BGT, Kadaster, AHN4), 3DBAG and, for walking and public transport, OpenStreetMap.

Examples above: Stadsdriehoek, Rotterdam, 500 m radius.

List of plates

Planning

Plate	What it shows	Used for
ZONING PLAN (REFERENCE)	Main zoning (enkelbestemming) of the legacy bestemmingsplannen in force at the site, plus function areas from the new part of the omgevingsplan where a municipality has one. 23 classes and «No digital plan» (hatched)	Seeing the zoning pattern around the site; reference only
HERITAGE & DESIGNATIONS	Protected townscapes, UNESCO World Heritage, national monuments and archaeological monuments (RCE), Schiphol restrictions (LIB), noise, safety, safeguarding and environmental zones from the plans	Checking heritage and statutory zones before massing
PUBLIC FACILITIES	Traffic, green space, community (schools, care, civic) and sport zoning, plus amendment, elaboration and exemption areas from the plans	Seeing which public land and future plan changes surround the site

Buildings

Plate	What it shows	Used for
BUILDINGS	BAG building outlines (figure-ground), one colour	Reading the grain of the fabric
BUILDING USE	BAG use (gebruiksdoel) in 12 classes plus Outbuilding (no unit) and Unknown	Seeing where uses mix and where one use dominates
BUILDING AGE	BAG year built (bouwjaar) in 6 bands: before 1900, 1900–1939, 1940–1959, 1960–1979, 1980–1999, since 2000	Reading development history
BUILDING HEIGHT	3DBAG height in 5 bands	Seeing the mid-rise range
HIGH-RISE / LOW-RISE	Two plates, each with one height threshold that you set	Basis for a height strategy

Surroundings and access

Plate	What it shows	Used for
GREEN SPACE & WATER	Woodland, tree belts and shrubs (BGT), green space and low vegetation, waterways and water bodies, sea	Open space the site can connect to
TREES	Trees detected from the 2025 near-infrared aerial photo and AHN4 heights: individual trees and continuous canopy	Street and park tree distribution
ROADS	Streets by hierarchy, from motorways to footways and cycle paths	Access and the street the site fronts
CHOICE	The darker the street, the more often it lies on routes through the area. It is worked out from the street layout alone, not from counts of people or vehicles.	Picking the street for the main entrance or ground-floor shops (where people pass)
STREET ENCLOSURE	Street width (D) ÷ height of the buildings on both sides (H). Darker streets are narrow and lined with tall buildings; lighter ones are open.	Street sections (building height, setbacks): spotting streets that feel too closed or too open
PUBLIC TRANSPORT	Train and metro stations, tram and bus stops and rail lines (OpenStreetMap)	Station proximity and walking routes
WALKING DISTANCE	How far you get on foot in 5, 10 and 15 minutes along streets and paths (OpenStreetMap network)	The real walking reach instead of a circle
CITY BLOCKS	Blocks enclosed by streets, with water and tunnels removed	Block size and permeability

Ground and parcels

Plate	What it shows	Used for
TERRAIN & CONTOURS	AHN4 ground height relative to NAP, with contours every 0.5 m or more (chosen from the relief)	Dykes, canal banks and raised ground
SLOPE	Slope in 6 bands with limits at 0.5, 1, 2, 3 and 5°	Finding the few slopes in flat country
ASPECT	Which way the slopes face. South-facing slopes get more sun; north-facing ones are shadier. Strong colours are steep, pale colours gentle, and unshaded areas flat.	Layout and planting: south-facing slopes get sun, north-facing ones shade
CADASTRAL PARCELS	Kadaster cadastral map, parcel outlines	Reading the ownership grain
PLOT SIZE	The same parcels coloured by area in 5 bands (100 · 300 · 1,000 · 3,000 m²)	Where land is finely divided

Environment and density

Plate	What it shows	Used for
SUN HOURS	Hours of direct sun on the ground on the winter solstice (shadows every 10 minutes, summed)	Which ground gets winter sun
SKY VIEW (SVF)	Share of sky visible from the ground (0–100%)	Telling enclosed from open ground
VISIBILITY	Where a building on the plot would be seen from the street. Dark areas see it even if it is low; light areas only if it is tall. Unshaded areas do not see it even at the top height band.	Height studies and townscape review: how tall to build to be seen from where
WIND ROSE	Annual wind frequency and speed in 16 directions from the nearest TMYx weather file (2011–2025)	Orientation decisions
AERIAL PHOTO	Current PDOK aerial photo (8 cm, Beeldmateriaal.nl) in the plate frame	Checking the abstract plates against the ground
DENSITY	Heat map of estimated floor area or building count	Where development is concentrated

Reading an empty or grey plate

State	Meaning
Hatched «No digital plan» on ZONING PLAN	No legacy plan in the national copy at that spot. That does not mean no rules apply
Grey «Unknown» on BUILDING USE	The BAG has no use for the building, or the building has no dwelling or other unit (outbuildings are a separate class)
Building without height	Not yet in 3DBAG (finished after the last survey); see BAG and 3DBAG
SLOPE almost one colour	Normal in flat parts of the Netherlands; most ground is under 0.5°

Limitations

Zoning is for reference only. The rules in force are in the municipality's omgevingsplan (Regels op de kaart)
Use is the registered use in the BAG, not the use on site today
Heights come from 3DBAG. Buildings finished after 2022 may have no height yet
WALKING DISTANCE is an estimate at 80 m per minute; crossings, bridges that open and waiting times are not modelled
SKY VIEW includes buildings only. SUN HOURS includes buildings and terrain, not trees
Coverage: the European Netherlands only

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Example plates: BAG (Kadaster, CC0) · © 3DBAG by tudelft3d and 3DGI (CC BY 4.0) · BGT, NWB, AHN4 (CC0) · Kadaster, Beeldmateriaal.nl, PDOK (CC BY 4.0) · © OpenStreetMap contributors (ODbL)