CR-004 · contract change notice · 1 page · sha256 87ba5f0513421a76…
Contract change notice relying on the wrong ground
The notice cites section 74(1)(c) (below-threshold) for a +14.4% value change and a +33% term extension. The percentage is not printed. A rule engine should raise PA23-s74-exceeds-below-threshold and PA23-s74-substantial-term.
Hazards
- wrong_legal_ground - The authority cites a modification ground that does not cover the change made.
- percent_not_printed - The modification percentage is not printed and must be computed from the values.
- date_uk_format - Dates printed as DD/MM/YYYY.
Pages
Page 1
Gold labels and extractor output
✓ correct · ✗ wrong · – missing. Blank means the field is null in the gold and the extractor returned nothing (not counted).
| Field | Gold | llm:nim/z-ai/glm-5.3-flash:text | llm:nvidia/nemotron-3-ultra-550b-a55b:free:text | naive_text |
|---|---|---|---|---|
notice_type | contract_change_notice | ✓ contract_change_notice | ✓ contract_change_notice | ✓ contract_change_notice |
notice_reference | 006540-2026 | ✓ 006540-2026 | ✓ 006540-2026 | ✓ 006540-2026 |
contracting_authority critical | Stonebridge Metropolitan Borough Council | ✓ Stonebridge Metropolitan Borough Council | ✓ Stonebridge Metropolitan Borough Council | ✓ Stonebridge Metropolitan Borough Council |
contracting_authority_type | sub_central | ✓ sub_central | ✓ sub_central | ✓ sub_central |
supplier_name critical | Alderman Facilities Group Ltd | ✓ Alderman Facilities Group Ltd | ✓ Alderman Facilities Group Ltd | ✓ Alderman Facilities Group Ltd |
supplier_registration_number | 09418832 | ✓ 09418832 | ✓ 09418832 | ✓ 09418832 |
contract_title critical | Facilities Management for Corporate Buildings | ✓ Facilities Management for Corporate Buildings | ✓ Facilities Management for Corporate Buildings | ✓ Facilities Management for Corporate Buildings |
contract_reference | SMBC/FM/2025/003 | ✓ SMBC/FM/2025/003 | ✓ SMBC/FM/2025/003 | ✓ SMBC/FM/2025/003 |
procurement_type | services | ✓ services | ✓ services | ✓ services |
light_touch | false | ✓ false | ✓ false | ✓ false |
procedure | competitive_flexible | ✓ competitive_flexible | ✓ competitive_flexible | ✓ competitive_flexible |
cpv_codes | ["79993100", "50700000", "90911200"] | ✓ ["79993100", "50700000", "90911200"] | ✓ ["79993100", "50700000", "90911200"] | ✓ ["79993100", "50700000", "90911200"] |
notice_published_date | 2026-05-04 | ✓ 2026-05-04 | ✓ 2026-05-04 | ✓ 2026-05-04 |
award_date | 2025-11-14 | ✓ 2025-11-14 | ✓ 2025-11-14 | ✓ 2025-11-14 |
contract_signed_date | 2026-03-20 | ✓ 2026-03-20 | ✓ 2026-03-20 | ✓ 2026-03-20 |
contract_start_date critical | 2026-04-01 | ✓ 2026-04-01 | ✓ 2026-04-01 | ✓ 2026-04-01 |
contract_end_date critical | null | ✗ 2029-03-31 | ✗ 2029-03-31 | · |
extension_options_months | 0 | ✓ 0 | ✓ 0 | ✓ 0 |
maximum_term_months | 36 | ✓ 36 | ✓ 36 | – null |
contract_value_gbp critical | null | ✗ 1,800,000 | ✗ 1,800,000 | · |
value_includes_vat | false | ✓ false | ✓ false | – null |
number_of_tenders_received | null | · | · | · |
kpis | null | · | · | · |
payment_terms_days | null | · | · | · |
standstill_end_date | null | · | · | · |
lots | [] | · | · | · |
modification_number | 1 | ✓ 1 | ✓ 1 | ✓ 1 |
modification_date | 2026-05-11 | ✓ 2026-05-11 | ✓ 2026-05-11 | ✓ 2026-05-11 |
modification_description | Addition of three annexe buildings to the cleaning and M&E maintenance scope following the transfer of the Riverside offices to the Council, and a 12-month extension of the term to align with the corporate accommodation strategy. | ✓ Addition of three annexe buildings to the cleaning and M&E maintenance scope following the transfer of the Riverside offices to the Council, and a 12-month extension of the term to align with the corporate accommodation strategy. | ✓ Addition of three annexe buildings to the cleaning and M&E maintenance scope following the transfer of the Riverside offices to the Council, and a 12-month extension of the term to align with the corporate accommodation strategy. | ✗ Addition of three annexe buildings to the cleaning and M&E maintenance scope |
modification_ground critical | s74_below_threshold | ✓ s74_below_threshold | ✓ s74_below_threshold | ✓ s74_below_threshold |
original_contract_value_gbp | 1,800,000 | ✓ 1,800,000 | ✓ 1,800,000 | – null |
revised_contract_value_gbp | 2,060,000 | ✓ 2,060,000 | ✓ 2,060,000 | – null |
value_change_gbp critical | 260,000 | ✓ 260,000 | ✓ 260,000 | ✓ 260,000 |
value_change_percent | 14.4 | ✓ 14.4 | ✓ 14.4 | – null |
original_end_date | 2029-03-31 | ✓ 2029-03-31 | ✓ 2029-03-31 | – null |
revised_end_date critical | 2030-03-31 | ✓ 2030-03-31 | ✓ 2030-03-31 | ✓ 2030-03-31 |
term_change_months | 12 | ✓ 12 | ✓ 12 | ✓ 12 |
contract_change_notice_published | true | ✓ true | ✓ true | ✓ true |
voluntary_standstill | true | ✓ true | ✓ true | ✓ true |
Expected rule-engine flags
| Rule | Severity | Detail |
|---|---|---|
PA23-threshold-in-scope | info | Value £1,800,000 is at or above the services threshold £207,720 (inc VAT) applicable on 2026-05-04. |
PA23-s74-exceeds-below-threshold | high | Value change +14.4% exceeds the 10% below-threshold limit for services in s.74(4). |
PA23-s74-substantial-term | high | Term change +12 months is +33.3% of the 36-month maximum term: a substantial modification under s.74(3)(a) with no Schedule 8 ground. |
Provenance: Fictional authority, supplier and figures. Generated for extraction testing; not a real notice. Generator crtest.gen 0.1.0, licence CC0-1.0.