Versioned vocabulary · v2026.1One standard for documenting the space beneath the home.
Every Crawlspace Blueprint™ uses the same words for the same things — the trade categories, the condition terms, the readings, the lifecycle states. This page publishes that vocabulary so a record means the same thing to a homeowner, an agent, a partner, and a future owner. Crawl-Space Connect documents the crawlspace — it records and confirms conditions; it does not correct them.
A published, versioned vocabulary.
A Crawlspace Blueprint™ is more than a set of files — it is a structured record. This standard names every term that record can use, so a homeowner, a partner, an agent, and a future owner all read the same record the same way. It is versioned ( v2026.1) so the meaning of a term never drifts: 7 controlled vocabularies, 34 terms in all.
Lifecycle & verification
How confirmed a Crawlspace Blueprint™ is — from an assembled draft to a record verified by a partner or by Crawl-Space Connect.
draft
Recorded and assembled; not yet confirmed by a verifying party.
verified_by_partner
Confirmed by an authorized Registry Partner who documented the space.
verified_by_csc
Confirmed by Crawl-Space Connect through its own documentation workflow.
Trade categories
The trade domains a documented condition can route to. Used to organize findings, not to prescribe a remedy.
hvac
Heating, ventilation, and air conditioning systems
electrical
Wiring, panels, and electrical systems
plumbing
Pipes, drains, and water supply
pest_termite
Pest control and termite treatment
restoration
Structural repair and wood restoration
remediation
Moisture control, mould remediation, and vapour barrier encapsulation
Condition status
The working status of a documented condition as the record is maintained.
open
in_progress
resolved
Condition severity
How urgent a documented condition is, as recorded by the documenting editor.
critical
major
minor
Capture Point condition
The recorded condition of an individual Capture Point in the crawlspace.
good
No documented concerns at this Capture Point.
fair
Minor recorded observations; monitor over time.
poor
Notable documented conditions at this Capture Point.
critical
Severe documented conditions warranting prompt owner attention.
Diagnostic readings
The structured environmental readings captured during a documentation visit.
relative_humidity
Ambient relative humidity (%).
wood_moisture_content
Moisture content of framing members (%).
temperature_f
Air temperature (°F).
co2_ppm
CO₂ concentration (ppm).
voc_ppb
VOC concentration (ppb).
radon_pci_l
Radon concentration (pCi/L).
static_pressure
Duct or envelope static pressure.
other
A recorded reading outside the named types.
Timeline events
The kinds of events recorded on a property record over its lifetime.
inspection
An on-site capture event was recorded.
reading
A diagnostic reading was recorded.
finding
A condition was recorded against the Blueprint.
correction
A verified partner recorded completed corrective work.
transfer
A chain-of-custody transfer was recorded.
access
A permissioned access grant or view was recorded.
document
A document was attached to the record vault.
Built to be read by people and by software.
The standard is published as a JSON-LD @context and a JSON Schema. When an owner exports a Transfer Packet, the machine-readable Blueprint is keyed by its Registry ID and described by this exact @context — so the record carries its meaning, not just its files. No record data appears here or in the published standard.