SharePoint Storage & Filing

How CDT’s SharePoint went from 67,760 files across 22 sites to a clean, organised structure · February – March 2026

Before — What We Found (February 2026)

67,760
Files
in main document library
123.9 GB
Total storage
one site alone
57.3 GB
Duplicates
46% of all storage
22
SharePoint sites
most empty or abandoned

CDT’s SharePoint had grown organically over nearly a decade with no central management. Files were scattered across 22 separate sites, almost half of all storage was wasted on duplicate copies, and heritage media was trapped behind Microsoft authentication — unusable on any external website.

Main document library breakdown

FolderFilesSize Problem
FINANCE53,01840.9 GB
3 duplicate copies of finance records from different officers
VISITOR STREAM4,08538.3 GB
Heritage photos and videos — trapped behind SharePoint auth
WORKING GROUPS AREA90723.0 GB
Comrie Heritage Group content duplicated wholesale
STAFF AREA5,73313.7 GB
Ex-staff archives with OneDrive sync artifacts
PROJECTS1523.9 GB
Active project folders including HCF
PROPERTY1,6892.7 GB
Building drawings and assessments
Other (4 folders)2,1761.3 GB
CONFIDENTIAL, ADMINISTRATION, BOARD, HEALTH & SAFETY

Where the 57.3 GB of duplication came from

Source of duplicationFilesWastedWhat happened
Finance Officer SD copy11,07414.6 GBFull copy of finance folder by previous officer
Finance (SDAWE) copy9,38114.5 GBSecond duplicate of the same finance records
Heritage Group duplicate89023.0 GBEntire Heritage Group folder duplicated into Working Groups
Finance Officer AH copy3,2542.0 GBThird partial copy of finance records
Ex-staff sync artifacts5541.0 GBOneDrive created timestamped copies during account migration
Cross-folder copies2,4972.2 GBSame documents in VISITOR STREAM, PROJECTS, OTHER folders

21 satellite sites (beyond the main site)

Over the years, separate SharePoint sites were created for projects and working groups. Ten were completely empty. Eleven had minimal content (98 MB total) — most not touched for years.

11 sites with content (98 MB total)

SiteSizeLast used
Board and StaffWorking group documents — not updated since 202043.4 MBApr 2020
EnergyDistrict heating plans, Visio drawings, RWG terms of reference (archived to CDT)24.6 MBJun 2024
Renewables and ResourcesWorking group documents9.5 MBJul 2024
GrassWorking group documents — not updated since 20225.5 MBDec 2022
Board of DirectorsWorking group documents — not updated since 20174.6 MBAug 2017
Estates GroupWorking group documents — not updated since 20223.2 MBJan 2022
Strategic PlanningWorking group documents — not updated since 20221.6 MBMar 2022
HeritageWorking group documents1.5 MBJul 2024
Comrie Community WoodlandWorking group documents1.5 MBSep 2024
Jail Block TeamWorking group documents1.5 MBOct 2024
All CompanyWorking group documents1.4 MBJun 2024

10 empty sites (0 files)

Created as placeholders but never used.

EstatesEventsFundingHealth & SafetyHeritageInfrastructure PlanningMarketingNissen 1916-2016ProjectsSecurity

What We Did

Full audit
Catalogued every file across all SharePoint sites via Graph API — 67,760 files mapped with size, location, hash, and modification date
Duplicate removal
Identified and safely removed 27,650 duplicate files (57.3 GB) — verified by hash before deletion, full audit log retained
Heritage media migration
Moved 3,345 heritage files (photos, videos, assessments) to Cloudflare R2 — now publicly accessible for the portal and future website
Site consolidation
Deleted 21 unused satellite sites (10 empty, 11 with minimal content). Energy site content archived to CDT before deletion
Board Portal
Created a dedicated SharePoint site for trustees with governance documents, meeting papers, action tracker, and register of interests
Folder cleanup
Removed redundant top-level folders from the CDT document library. Operational documents (finance, admin, HR) remain on the root Team Site

After — Where We Are Now (March 2026)

~196
Files on CDT site
down from 67,760
~4 GB
Active storage
down from 123.9 GB
3
SharePoint sites
down from 22
$0.35/mo
R2 hosting
for all heritage media

CDT document library now

FolderContentsSizeNote
PROJECTS18 project folders3.9 GBHeritage Conservation Framework, Solar, Museum Roof, CLLD, and 14 others
WORKING GROUPS AREA8 items16.5 MBDown from 23 GB — duplicates removed, only current docs remain
Archived Sites1 folder11.1 MBEnergy site content preserved before deletion
HEALTH & SAFETY5 items3.2 MBCurrent H&S documentation

Heritage content moved to Cloudflare R2

Photos, videos, and heritage documents now live on a purpose-built CDN that loads fast, works on any device, and costs a fraction of what SharePoint alternatives would.

ContentFilesSize
Heritage videos3123.4 GB
Heritage photos (9 collections)2,0755.7 GB
HCF assessments + evidence photos1,2393.8 GB
Blair Urquhart archive

Sites consolidated

CDT
Main document library
Board Portal
Trustee governance (new — ready for use)
Team Site
Root site (system)

All 21 satellite sites deleted. Energy site content archived to CDT/Archived Sites/ before removal. The other 10 small sites contained only working group documents (74 MB combined excluding Energy) from groups that are no longer active.

Note: The root Team Site (comriedevtrust.sharepoint.com) also holds operational documents (finance, admin, HR) and was not part of this cleanup. The figures above cover the CDT project site and its 21 satellite sites.

Still To Do

ItemDetailImpact
Funding folder consolidationScript ready to merge duplicate COF folders, delete 8 empty grant folders, and archive pre-2023 grantsCleaner FINANCE structure
Recycle bin clearanceDeleted files remain recoverable for 93 days — recycle bin currently holds ~56 GBFree quota back to tenant
Remove original media from SharePointHeritage photos/videos still exist on SharePoint after being copied to R2~33 GB reclaimable

Data sourced from Graph API audit (February 2026) and live queries (March 2026) · Full audit logs retained