How much of the plot is built on, from registered building and plot areas
How much of the plot under the address is built on: the registered built area of the buildings on the plot divided by the plot's registered area, with the inputs and the reason when no figure can be given. A registered ratio, not the legal utilisation set by a zoning plan.
Status right now
Measured 12 Nov 2026. This is about the section as a whole, not one address: an address outside coverage still gets “not covered”, never “no”.
Available with: a separate agreement, switched on per account · Ask about an agreement
Model and method
How much of the plot is already built on?
This is model metadata from the contract. Results are estimates, not observed source facts. Declared maturity and reference comparison do not establish that the current model release is approved or available to the customer.
- Result type
- Calculation
- Method
- Geometric calculation
- Declared maturity
- Marked stable in the catalogue
- Reference comparison
- A reference is declared
- Contract version
- 1
- Model artifact and runtime version
- Not established by this catalogue description
Inputs, headline fields and comparison basis
Declared inputs
- Matrikkel building areas (bebygd areal)
- Matrikkelen teig
Headline output fields
plot_area_m2, buildings_counted, buildings_without_area, built_area_m2, site_coverage_pct, coverage_status, boundary_accuracy_class, plot_shared_by_several_units
Declared comparison basis
Registered built area against registered plot area; withheld when the inputs are incomplete
Input names are not a complete training dataset or revision-pinned lineage. Read the caveats and response metadata for what a particular result is based on.
Source terms and reuse
These are declarations from the catalogue contract, not a new rights approval. Customer access, source agreements and privacy need separate assessment. A licence label does not establish coverage or reviewed content.
- Declared licence or terms
- Kartverket Matrikkel
- Declared redistribution
- Agreement terms apply
- Catalogue basis
- Separate agreement
Attribution and note
Shown from the contract in its original language.
Served under a separate agreement; its terms decide what may be shown or passed on.
What this does not say
Quoted verbatim from the section’s warnings field, exactly as the API returns it. They are not translated: a translation would show something other than what your response actually contains.
- Registered, not legal: built_area_m2 is the sum of the Matrikkel's bebygd areal for the buildings that have an address point on the teig under the address, and plot_area_m2 is the teig's registered area. Garages and outbuildings without an address point of their own are not counted, so the figure is a lower bound. It is not the %-BYA of a zoning plan, which is defined and measured by the plan's own rules (see plan_regulations).
- site_coverage_pct is null, with the reason in coverage_status, when the inputs do not support a figure: no registered built area on the plot (no_registered_area), a building on the plot without a registered area (incomplete_building_area), a teig shared by several matrikkelenheter (shared_plot) or no plot area (no_plot_area).
- Source: Kartverket Matrikkel (by agreement), Matrikkelen eiendomskart (teig). Calculation: Approach.
Provider-contract fields
8 of 9 fields are value fields — the ones that decide whether a record actually says anything. The rest are context: identifiers, codes and timestamps.
| Field | Type | Role |
|---|---|---|
| plot_area_m2 | number | null (m2) | value |
| buildings_counted | integer | null | value |
| buildings_without_area | integer | null | value |
| built_area_m2 | number | null (m2) | value |
| site_coverage_pct | number | null (percent) | value |
| coverage_status | string | null | value |
| boundary_accuracy_class | string | null | value |
| plot_shared_by_several_units | boolean | null | value |
| updated_at | string | null | context |
Fetch this section
Send the key in the X-API-Key header. The section can be fetched with the rest of the address, or on its own with pagination.
curl --disable --fail-with-body --silent --show-error --connect-timeout 10 --max-time 30 \
-H "X-API-Key: ${APPROACH_API_KEY:?APPROACH_API_KEY is not set}" \
'https://api.approach.no/api/v1/addresses/285717643?include=site_coverage'
# paginated, one section at a time
curl --disable --fail-with-body --silent --show-error --connect-timeout 10 --max-time 30 \
-H "X-API-Key: ${APPROACH_API_KEY:?APPROACH_API_KEY is not set}" \
'https://api.approach.no/api/v1/addresses/285717643/sections/site_coverage?limit=25'Why it cannot be tried here
This section is not part of the public demo projection. That is a licensing and privacy decision, not a sign the data is missing: it is served to customers granted the section.