--- title: "The Battle of Britain Bunker: (Phase 2) Water Mitigation Works" ocid: "ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899.json" source: "Contracts Finder" current_stage: "Tender" buyer: "LONDON BOROUGH OF HILLINGDON" published: "2022-10-31" --- # The Battle of Britain Bunker: (Phase 2) Water Mitigation Works Buyer: LONDON BOROUGH OF HILLINGDON Current stage: Tender OCID: ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899.json) ## Summary The London Borough of Hillingdon is inviting tenders for "The Battle of Britain Bunker: (Phase 2) Water Mitigation Works" within the Ground-drainage work category. This phase of the project involves drainage, repairs, and internal works, with construction works scheduled from end January 2023 to end August 2023. The tender deadline is 21st November 2022, and the contract period will run from 30th January 2023 to 28th August 2023. This public procurement opportunity with the London Borough of Hillingdon offers business growth potential for organisations in the construction and civil engineering sector. Companies specialising in drainage construction, ventilation installation, and civil engineering works would be well-suited to compete in this open procedure tender. Small and medium-sized enterprises (SMEs) are encouraged to participate, with the contract specifically suitable for SMEs. ## Notice The Battle of Britain Bunker was constructed in 1938 as the underground operations room replacing a ground level facility. In 1940 it was the nerve centre for directing the fighter protection over London and the Southeast. The Bunker was built on two levels, and remains largely unchanged, it contains its original air filtration system provided by two independent plant rooms, mains and standby power supplies, together with telephone exchanges and offices. It was closed for operational use in 1958. The bunker is now a museum. Phase 2 Water mitigation is part of an ongoing programme of works being carried-out at the Bunker complex. This phase consists of drainage, repairs and internal works. Drainage works: The works is for a series of land drains and Swales across the site to intercept water away from the complex. And the creation of a new below ground attenuation tank to mitigate off-site drainage along with decommissioning of an attenuation pond, and all associated works. Repairs works: The repair work is to three leaking air shafts that involves deep excavation and cutting through two burster courses, asphalt repairs and formation of a concrete outer sleeve. Other works are to be carried-out as specified. Internal works: Internal works are to consist of plant room and ventilation ductwork repairs, electrical upgrade, and water management improvements. Programme Construction works: End January 2023 - End August 2023 ****Please register/log in at www.capitalesourcing.com to view all tender information/documents**** Additional information: The London Borough of Hillingdon is inviting all interested organisations to tender through the Council's nominated electronic tendering portal, www.capitalesourcing.com Please register on the above portal where the tender documents for this project can be downloaded. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/1d2e54d8-e4e8-45b2-a910-051ec5b9721f | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Open | | Procurement method details | Open procedure (below threshold) | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 31 Oct 2022 | | Submission deadline | 21 Nov 2022 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 6 Mar 2023 - 25 Sep 2023 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £900,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | LONDON BOROUGH OF HILLINGDON | | Locality | UXBRIDGE | | Post town | Southall | | Postcode | UB8 1UW | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI7 Outer London - West and North West | | ITL 3 | TLI74 Harrow and Hillingdon | | Local authority | Hillingdon | | Electoral ward | Uxbridge | | Westminster constituency | Uxbridge and South Ruislip | | Delivery location | TLI London | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45111240 - Ground-drainage work - 45200000 - Works for complete or part construction and civil engineering work - 45232450 - Drainage construction works - 45331200 - Ventilation and air-conditioning installation work ## Release History - 31 Oct 2022 at 15:46 - TenderAmendment - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/1d2e54d8-e4e8-45b2-a910-051ec5b9721f - 26 Oct 2022 at 13:56 - TenderAmendment - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/1d2e54d8-e4e8-45b2-a910-051ec5b9721f - 21 Oct 2022 at 14:46 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/1d2e54d8-e4e8-45b2-a910-051ec5b9721f ## Documents - https://www.contractsfinder.service.gov.uk/Notice/1d2e54d8-e4e8-45b2-a910-051ec5b9721f 31st October 2022 - Opportunity notice on Contracts Finder ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-bd0d8fb9-b115-4366-abcb-cc7b28e51899.json.