TenderlineUK
Procurement Intelligence
Official OCDS
Find a Tender
complete
Official procurement procedure

T22-142ENV Legionella Risk Assessment and Control Procedures along with Written Schemes and Remedial Works

Environmental issues consultancy services
Environmental monitoring other than for construction
Environmental safety services
+4 more
Northern Ireland (UKN0A)
Published value
Not published
Submission deadline Not published
Lots published1
Procurement Intelligence
Published evidence · v1
Prepared 7 Sept 2026, 21:12 BST
A pre-calculated analytical view of official UK procurement facts, competition benchmarks and decision timelines.
Bid readiness
Review notice
Submission deadline not published
Check official notice for submission route
Scope structure
1lots
1 lot · 1 published item
2 published CPV families
Decision Velocity
~52 days
Typical sector award window after deadline
Sector median: 52 days
Contract lifecycle
Not published
No future linked contract end in retained records
No published extension signal
Pricing & Budget Savings
£329,468
Contract/award value: £329,468
1 award supplier linked
Bidding Competition
4 bids
0 SME bids · 4 electronic
No bid spread metrics published
Sector Market Benchmark (CPV 71)
Based on 210 published procedures
Median Winning Discount
20.57%
Award reduction below published budget
Typical Bids Received
3 bidders
Median competitive participation in sector
Typical Evaluation Window
52 days
Median time between deadline and award
Top Contenders in this Sector (CPV 71)
Active commercial suppliers winning public contracts in this field
SupplierAwards won in sectorTotal awarded valueAvg. winning discount
RIDGE AND PARTNERS LLPCRN: OC309402
29 contracts£9,392,309,132At ceiling / not disclosed
TURNER & TOWNSEND PROJECT MANAGEMENT LIMITEDCRN: 02165592
25 contracts£1,985,345,461At ceiling / not disclosed
AECOM LIMITEDCRN: 01846493
18 contracts£6,455,289,814At ceiling / not disclosed
ISHERWOOD + ELLIS LLP
17 contracts£63,707,314At ceiling / not disclosed
MCADAM DESIGN LTD
16 contracts£21,134,049,470At ceiling / not disclosed
WSP UK LimitedCRN: 01383511
15 contracts£7,163,520,453At ceiling / not disclosed
Marsh LimitedCRN: 01507274
13 contracts£14,945,105At ceiling / not disclosed
Magnus Electrical Services Limited
12 contracts£4,161,951,706At ceiling / not disclosed
ECD Architects
11 contracts£2,535,366,638At ceiling / not disclosed
ATKINSRÉALIS UK LIMITEDCRN: 00688424
11 contracts£2,297,659,139At ceiling / not disclosed
Evidence coverage
7/12 core inputs published
Standard procedure facts
Comparable published opportunities
Historic records ranked from matching published evidence. They are research comparables, not expected competitors or a price forecast.
Published procedurePublished valueMatching evidence
T26-117ENV Archaeology Services for Unlocking Silent Heritage (Historic Cemeteries Enhancement) Project PEACEPLUSDerry City and Strabane District Council · 27 Aug 2026, 09:11 BST
£20,000
same CPV family
same region
Water Hygiene Safety & Maintenance ServicesUniversity of Exeter · 27 Aug 2026, 16:32 BST
£1,000,000
same CPV family
Water Hygiene - Monitoring & Risk AssessmentsGentoo Group · 7 Sept 2026, 11:08 BST
£328,000
same CPV family
Below 2 Bar Risk ModelCADENT GAS LIMITED · 28 Aug 2026, 13:08 BST
Value not published
same CPV family
Fire Risk Assessments ServicesClarion Housing Group · 2 Sept 2026, 12:42 BST
£15,833,333
same CPV family
Method: tender-intelligence-v1. Values and dates are retained OCDS facts; missing source data remains unknown.
Procurement Executive Summary
AI & Search Synopsis
Generated from official OCDS record
Tenderline Synopsis: Derry City and Strabane District Council: "T22-142ENV Legionella Risk Assessment and Control Procedures along with Written Schemes and Remedial Works". Published status: complete. Published value: Value not published. 1 published lot. Submission deadline not published. See the official notice for participation instructions.
Contracting AuthorityDerry City and Strabane District CouncilScope & CategoriesNot publishedSubmission Window
complete
No deadline published
Submission GatewayDirect notice routeLegal Basis & RegimeStandard procurementEstimated Value (exc. VAT)Not published
Bidder Intelligence · Authority Profile: Derry City and Strabane District Council
Market Analytics
View Authority Profile →
Derived from OCDS awards & bid statistics
Published history for Derry City and Strabane District Council. These figures describe retained records, not a forecast of bids or a measure of buyer bias.
Published-to-award variance
Not availableInsufficient comparable data
Requires at least 5 comparable procedures
Competition Density
2Bids / Report (median)
29.2% of reports have one bid · Mean: 4 bids
Supplier ConcentrationLow Concentration
Doran Consulting LtdTop vendor: 8.3% of attributable value
Payment Terms
Check noticePublished terms
Payment obligations depend on the applicable regime and contract. Consult the official documents.
Coverage: 123 active published awards; 120 bid reports (which may be per lot). Supplier values exclude multi-supplier awards, frameworks and DPS, and use GBP only. They are published award values, not payments. Published-to-award variance compares single-lot, single-award, single-supplier GBP procedures with explicitly non-framework/non-DPS status; increases remain in the average. Unpublished data stays unknown. Awarded suppliers are winners, not all bidders.
Historical Awarded Suppliers in this Category (CPV 71):
Supplier NameHistoric AwardsAttributable ValueAvg. Price Discount
Doran Consulting Ltd2 wins£583,995—
MCADAM DESIGN LTD1 win£3,527,065—
esc construction consultants1 win£2,120,000—
GRAHAM ASSET MANAGEMENT LTD1 win£329,468—
DESIGN ID CONSULTING LTD1 win£248,000—
Procedure terms
Contracting AuthorityDerry City and Strabane District Council
Procedure methodNot published
Procurement categoryNot published
Statuscomplete
Framework / DPSNot published
CompetitionNot published
Above thresholdNot published
Legal basisNot published
Tender period startsNot published
Clarification deadlineNot published
Electronic submissionNot published
Submission languagesNot published
Published1 Jun 2023, 10:41 BST
Last source update1 Jun 2023, 10:41 BST
Recurring procurementNot published
ClassificationEnvironmental issues consultancy services, Environmental monitoring other than for construction, Environmental safety services, Environmental services, Health and safety services, Technical testing, analysis and consultancy services
Delivery area
Northern Ireland (UKN0A)
OCIDocds-h6vhtk-03a790
What is being bought
Derry City and Strabane District Council wishes to appoint a suitably qualified and experienced Firm to complete Legionella Written Control Schemes, Risk Assessments, monitoring procedures and Cleaning and Descaling of all outlets inc. Cold Water Storage Tank. Services shall be provided in accordance with the minimum standards defined in ACOP L8 The Control of Legionella Bacteria in Water Systems [L8], together with the enhanced standards as defined in this document. At present the scope of works applies to the facilities and vehicles as scheduled in attached appendices for a period of 36 months. Additional charges/fees must be included as part of your submission for additional buildings and vehicles. Please refer to the CfT documents for further details.
What changed
From the official release history
  1. tender value changed
    1 Jun 2023, 10:41 BST
  2. Status changed to complete
    1 Jun 2023, 10:41 BST
  3. Official notice release published
    1 Jun 2023, 10:41 BST
  4. Submission deadline changed to published date
    1 Jun 2023, 10:41 BST
  5. Published value updated to £350,000
    22 Feb 2023, 15:13 GMT
  6. Status changed to active
    22 Feb 2023, 15:13 GMT
  7. Official notice release published
    22 Feb 2023, 15:13 GMT
  8. Submission deadline changed to 31 Mar 2023, 12:00 BST
    22 Feb 2023, 15:13 GMT
  9. Buyer information updated
    22 Feb 2023, 15:13 GMT
Lots and requirements (1)
Published by the contracting authority
  • Lot 1 · #1
    Individual lot title not published
    cancelled
    Published valueNot published
    Derry City and Strabane District Council wishes to appoint a suitably qualified and experienced Firm to complete Legionella Written Control Schemes, Risk Assessments, monitoring procedures and Cleaning and Descaling of all outlets inc. Cold Water Storage Tank. Services shall be provided in accordance with the minimum standards defined in ACOP L8 The Control of Legionella Bacteria in Water Systems [L8], together with the enhanced standards as defined in this document. At present the scope of works applies to the facilities and vehicles as scheduled in attached appendices for a period of 36 months. Additional charges/fees must be included as part of your submission for additional buildings and vehicles. Please refer to the CfT documents for further details.
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
Timeline
  1. Procedure published
    1 Jun 2023, 10:41 BST
  2. Award active
    Not published · Not published
  3. Contract active
    Signed 17 May 2023, 00:00 BST · £329,468
Commercial outcome and competition
Awards
GRAHAM ASSET MANAGEMENT LTD
Not published · Not published · active
Contracts
Contract
£329,468 · signed 17 May 2023, 00:00 BST · active
Bid statistics
bids: 4 (lot 1)
electronicBids: 4 (lot 1)
foreignBidsFromEU: 0 (lot 1)
foreignBidsFromNonEU: 1 (lot 1)
smeBids: 0 (lot 1)
Buyer and organisations in this procedure

Derry City and Strabane District Council

Contracting authority GB-FTS-561
View buyer profile

  • Derry City and Strabane District Council
    buyer
    centralPurchasingBody

    Council Offices, 98 Strand Road, Derry, UK, BT48 7NN
    tenders@derrystrabane.com

  • GRAHAM ASSET MANAGEMENT LTD
    supplier

    5 BALLYGOWAN ROAD, HILLSBOROUGH, UK, BT26 6HX
    carla.montgomery@graham.co.uk

  • High Courts of Justice NI
    mediationBody
    reviewBody
    reviewContactPoint

    Belfast
Documents (0)
Official links; attachments are not copied
No data
No linked documents are published
Related procedures (0)
No data
No related procedures published