Document archive
A curated index of every substantive document in source/,
grouped by theme. Where multiple formats exist (e.g. .pptx + .pdf of the
same deck), only the most useful is listed.
Trust Framework Proof-of-Concept
The Sandbox onboarding pack, kick-off materials, and governing agreements.
| Document | Purpose |
|---|---|
Introduction-to-the-Sandbox-Setup-Guide.pdf | Non-technical onboarding for prospective Sandbox members |
Introduction-to-the-Sandbox-Technical-Guide.pdf | Technical onboarding for engineers |
Smart Property Data Trust Framework Project Plan.pdf | Cross-workstream sequencing |
Sandbox Co-operation Agreement.docx | Multilateral participant agreement |
ParticipantKickOff_19112025.pdf | Kick-off briefing for cohort 1 |
Raidiam slides Open Property sandbox.pdf | Raidiam's framing of the operational infrastructure |
Glossary.xlsx | Working glossary used inside Sandbox sessions |
Sandbox onboarding.xlsx | Live cohort tracking workbook |
DPMSG Smart Property Data Trust v2.pdf | DPMSG-published explainer |
DPMSG trust framework explainer.docx | Working draft, longer-form explainer |
Building Trust in Property Data — article.docx | Op-ed-style piece used in member & press outreach |
DPMSG reports
Public-facing output from the steering group's working groups.
| Document | Notes |
|---|---|
DPMSG Data Standards Interoperability — Spring 2025 | Most cited public DPMSG output to date |
data_standards_for_smart_data.pdf | Companion explainer |
Trust Framework Project Plan (Technical WG version) | Live cross-WG plan |
Member-update decks
Monthly Sandbox WG slides shared with all OPDA members.
OPDA all member update Feb 2026.pdfOPDA all member update Apr 2026.pdfOPDA all member update May 2026.pdf
Research & consumer materials
| Document | Notes |
|---|---|
source/06-research/consumer-survey/ | Consumer research feeding into MHCLG/DSIT submissions |
source/06-research/innovate-uk/ | Innovate UK related materials |
OPDA Digital Property Packs.pptx | Headline pitch deck |
OPDA Detailed Project Plan.xlsx | Detailed cross-workstream plan |
Buyer mortgage journey.png | Reference customer-journey diagram |
DBT Smart Data Roadmap 2024–25 | Government roadmap PDF |
Smart Data Challenge submission
Catalogued separately on the Smart Data Challenge page.
Semantic-model deliverables
| Document | Purpose |
|---|---|
data-dictionary-canonical.json | 8,458 property entries (machine-readable) |
data-dictionary.md | Human-readable dictionary |
business-glossary.md | Three-section human glossary |
business-glossary.ttl | SKOS Concept Scheme — 554 concepts |
glossary-merged.json | Merged OPDA Glossary terms (54) |