Construction cost index for detached houses and blocks of flats

construction_cost_index9 fields9 of these fields open in the demo

Source: SSB 08653 and 08655 (Byggekostnadsindeks)
Geography: Nationwide
Reported stale after: 120 days
Access: Requires an API key granted this section
Contract version: 1
In packages: area_context

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.

A national index (2015 = 100) of what it costs a builder to put up a detached wooden house (enebolig_tre, SSB 08653) or a block of flats (boligblokk, 08655): labour and materials, not the price of a finished home and not regional. change_12m_pct is the rise since the same month a year earlier.
by_trade breaks the total into groundwork, carpentry, painting, plumbing and electrical, each with its own 12-month change; use it to index an old estimate trade by trade rather than with the average.

Fields

4 of 9 fields are value fields — the ones that decide whether a record actually says anything. The rest are context: identifiers, codes and timestamps. Fields marked “open” return values to anonymous callers; the rest require a key.

Field	Type	Role	Demo
building_type	string \| null	context	open
table_id	string \| null	context	open
work_type_name	string \| null	context	open
index_month	string \| null	context	open
index_value	number \| null	value	open
index_value_year_ago	number \| null	value	open
change_12m_pct	number \| null (%)	value	open
by_trade	array<object> \| null	value	open
updated_at	string \| null	context	open

Fetch this section

curl -H "X-API-Key: $APPROACH_API_KEY" \
  "https://api.approach.no/api/v1/addresses/285717643?include=construction_cost_index"

# paginated, one section at a time
curl -H "X-API-Key: $APPROACH_API_KEY" \
  "https://api.approach.no/api/v1/addresses/285717643/sections/construction_cost_index?limit=25"

Try it now

This is a real call against the public demo, from here. What appears below is what the API returned — not a sample.