Source: https://tendernation.io/opportunities/01a13be2-54de-7159-bb3c-6c5ee6553bd5/technical-review-of-the-emerging-heathrow-airport-development-consent-order-prop closed GB open procedure Suitable for SMEs # Technical Review of the emerging Heathrow Airport Development Consent Order Proposal [London Borough of Hillingdon](https://tendernation.io/buyers/london-borough-of-hillingdon) Estimated value Not stated Published 26 Jun 2026 Deadline Closed 21 Jul 2026 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender We are seeking specialist consultants to undertake a rigorous technical review of the Heathrow Airport Development Consent Order (DCO) proposal. The review must independently assess the applicant's evidence, assumptions, methodologies, and conclusions across a range of environmental and socio-economic topics. Consultants are expected to challenge, scrutinise, and interrogate Heathrow Airport Ltd's (HAL) submissions, raise objections were justified, and help us secure favourable outcomes where required. The aim is to ensure that all potential impacts are properly understood, transparently presented, and robustly addressed in line with relevant legislation, guidance, and policy ## CPV classification Environmental engineering consultancy services Building consultancy services Technical analysis or consultancy services Development consultancy services Environmental issues consultancy services Source Find a Tender (UK) · Notice ocds-h6vhtk-06bdbc-2026-06-26T10:11:40+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-06bdbc-2026-06-26T10:11:40+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile London Borough of Hillingdon: past awards and live tenders](https://tendernation.io/buyers/london-borough-of-hillingdon) [Sector More Architecture, engineering & surveying tenders](https://tendernation.io/sectors/architecture-engineering-surveying) ## More tenders like this [Architectural, design and building consultancy services - Dalby Visitor Centre · Forestry Commission · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15552-1b8a-7041-80fb-e4943876fc38/architectural-design-and-building-consultancy-services-dalby-visitor-centre) [Asbestos Management Framework · Home Group · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15476-5fff-736e-ae2e-0c8a400c7297/asbestos-management-framework) [Infrastructure works consultancy services – Contrôle extérieur des chaussées · Collectivité européenne d Alsace · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-1730-733b-8247-a32bbbe2211c/france-infrastructure-works-consultancy-services-controle-exterieur-des-chau) [Architectural, construction, engineering and inspection services – Būvprojekta izstrāde un autoruzraudzība fasādes siltināšanai kārtās Dzirciema ielā 16, Rīgā – 1.kārta, C korpuss · Rīgas Stradiņa universitāte · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-3915-73d1-83e6-c378f9f7a926/latvia-architectural-construction-engineering-and-inspection-services-buvp) [Technical assistance services – Suivi et gestion de chantiers de réhabilitation de sites pollués · SPAQuE · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-155e-73c2-a593-9e17375422ac/belgium-technical-assistance-services-suivi-et-gestion-de-chantiers-de-rehab) [Architectural, construction, engineering and inspection services – Single Party Framework Agreement for Architect Led Integrated Design Team Services for Fire Safety Remediation Works for Dublin City Council · Dublin City Council · 5 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-0a15-7156-849b-5a223dd6d615/ireland-architectural-construction-engineering-and-inspection-services-sin)