Live tender calendar · UK public sector

Engineering & Architecture: the September 2026 tender calendar

48 engineering & architecture tenders close in September 2026, and 75 are live during it — drawn on one grid, with question cut-offs, bid deadlines and buyer decision windows.

closing in September

live during September

103

open in this category

£100m

combined value closing in September

buyers closing in September

September 2026

final 10 days → bid dueclarification deadlinebuyer decision window◀ opened earlierdashed = framework

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◀ Uwchraddio Goleuadau’r Arena (“Y Prosiect”) yng Nghanolfan Genedlaethol Chwaraeon Cymru / Arena Lighting Upgrade (“The Project”) at Sport Wales National Centre CPI USA Business Development Support for HealthTech and Materials CPI USA Business Development Support for HealthTech and Materials CPI USA Business Development Support for HealthTech and Materials CPI USA Business Development Support for HealthTech and Materials ◀ Multidisciplinary Design Team Consultancy Services for the National Lottery Heritage Fund project Reimagining Margam Castle ◀ Quantity Surveyor Consultancy Services for The National Lottery Heritage Fund project Reimagining Margam Castle ◀ Named Veterinary Surgeon (NVS) Services ◀ HVAC concept-level study ◀ AP25171 - Scaffolding Framework ◀ Legionella Water Temperature Monitoring ◀ Testing of Highway Materials ◀ Surveying & Claims Management Services ◀ Naval Architecture Support for Vessels Replacement Project ◀ CM4 - Bathymetry & Topographic Surveys - Bishop Rock and Longships Lighthouses

◀ Response Maintenance & Improvement - Mid Ulster/S Area & Mid & East Antrim Multidisciplinary Design Team Consultancy Services for the National Lottery Heritage Fund project Reimagining Margam Castle Quantity Surveyor Consultancy Services for The National Lottery Heritage Fund project Reimagining Margam Castle Testing of Highway Materials Uwchraddio Goleuadau’r Arena (“Y Prosiect”) yng Nghanolfan Genedlaethol Chwaraeon Cymru / Arena Lighting Upgrade (“The Project”) at Sport Wales National Centre Named Veterinary Surgeon (NVS) Services HVAC concept-level study AP25171 - Scaffolding Framework Surveying & Claims Management Services Naval Architecture Support for Vessels Replacement Project ◀ Door Entry and Warden Call and Refurbishment Works Legionella Water Temperature Monitoring ◀ Moveable Shielding Concept Design Study CM4 - Bathymetry & Topographic Surveys - Bishop Rock and Longships Lighthouses CPI USA Business Development Support for HealthTech and Materials CPI USA Business Development Support for HealthTech and Materials CPI USA Business Development Support for HealthTech and Materials CPI USA Business Development Support for HealthTech and Materials ◀ Bridge Scour Level 2 Inspections 2026 (56 Structures)◀ Wigan Council - Portable Appliance Testing (PAT)◀ Provision of Structural Engineering Consultancy Services ◀ PAS 2038 Commercial Retrofit Assessments ◀ Fire Safety ◀ Albert Cross Design Contest ◀ COV-Winter Service Weather Data System (WMCA)◀ SME Energy Savings Programme ◀ Marine Consultancy - Future Port Talbot ◀ TFW1073.00 - Fluid Delivery System ◀ EICR - Testing and Remedials ◀ Provision of a Digital Intereactive Map for Witney, West Oxfordshire ◀ RFP - GT61EES82026 - Assessment Partner for EDGE Punjab Project with UNICEF ◀ COM 09 Floating Turbine Towing Challenges ◀ Cheshire and Warrington Combined Authority - Transport Operating Model, Functions Assessment and Transition Planning ◀ PLANC (Permitting, Licences, Authorisations, Notifications & Consent) Assurance ◀ ISO11 Fumigation Lobby Replacement Project - Civil Works and CDM Principal Designer/Principal Contractor Role ◀ LEAD DESIGNER: EXHIBITION AND GRAPHIC DESIGNER SPACE POD GALLERY SCIENCE MUSEUM LONDON ◀ Specialist Consultancy Advice and Investigation Services

PLANC (Permitting, Licences, Authorisations, Notifications & Consent) Assurance ◀ GWASANAETHAU ASESIAD RISG TÂN | FIRE RISK ASSESSMENT SERVICES COM 09 Floating Turbine Towing Challenges ISO11 Fumigation Lobby Replacement Project - Civil Works and CDM Principal Designer/Principal Contractor Role Fire Safety Albert Cross Design Contest COV-Winter Service Weather Data System (WMCA)SME Energy Savings Programme Marine Consultancy - Future Port Talbot TFW1073.00 - Fluid Delivery System EICR - Testing and Remedials Cheshire and Warrington Combined Authority - Transport Operating Model, Functions Assessment and Transition Planning LEAD DESIGNER: EXHIBITION AND GRAPHIC DESIGNER SPACE POD GALLERY SCIENCE MUSEUM LONDON ◀ TENDER FOR THE PROVISION OF AN INTEGRATED CONSULTANCY TEAM FOR DFC REGENRATION - OMAGH WAYFINDING SCHEME REF 2627 CP 088B.Provision of a Digital Intereactive Map for Witney, West Oxfordshire RFP - GT61EES82026 - Assessment Partner for EDGE Punjab Project with UNICEF Specialist Consultancy Advice and Investigation Services Bridge Scour Level 2 Inspections 2026 (56 Structures)◀ Health Surveillance Services Wigan Council - Portable Appliance Testing (PAT)Provision of Structural Engineering Consultancy Services PAS 2038 Commercial Retrofit Assessments Response Maintenance & Improvement - Mid Ulster/S Area & Mid & East Antrim ◀ Site Energy Project Development Services Door Entry and Warden Call and Refurbishment Works ◀ Quantity Surveying, Cost Consultancy and Project Management Services for an Integrated Contact Centre Moveable Shielding Concept Design Study ◀ Masterplan Feasibilities External Project Manager Testing of Highway Materials Surveying & Claims Management Services Naval Architecture Support for Vessels Replacement Project CM4 - Bathymetry & Topographic Surveys - Bishop Rock and Longships Lighthouses Multidisciplinary Design Team Consultancy Services for the National Lottery Heritage Fund project Reimagining Margam Castle Quantity Surveyor Consultancy Services for The National Lottery Heritage Fund project Reimagining Margam Castle Named Veterinary Surgeon (NVS) Services HVAC concept-level study AP25171 - Scaffolding Framework Legionella Water Temperature Monitoring Uwchraddio Goleuadau’r Arena (“Y Prosiect”) yng Nghanolfan Genedlaethol Chwaraeon Cymru / Arena Lighting Upgrade (“The Project”) at Sport Wales National Centre ◀ T26-117ENV Archaeology Services for Unlocking Silent Heritage (Historic Cemeteries Enhancement) Project PEACEPLUS CPI USA Business Development Support for HealthTech and Materials ◀ Flow Derivation Reviews CPI USA Business Development Support for HealthTech and Materials ◀ Water Hygiene Safety & Maintenance Services CPI USA Business Development Support for HealthTech and Materials ◀ Whitehouse Archaeological Mitigation Excavation for Cricket Ground Works CPI USA Business Development Support for HealthTech and Materials ◀ Provision of MEP and Energy Consultant Services (4 Sites)

Site Energy Project Development Services Health Surveillance Services ◀ MD26097 - Plan Mid Devon Open Space, Allotment Play Area Study ◀ MD26097 - Plan Mid Devon Open Space, Allotment Play Area Study ◀ MD26098 - Plan Mid Devon Green Infrastructure Strategy Quantity Surveying, Cost Consultancy and Project Management Services for an Integrated Contact Centre Masterplan Feasibilities External Project Manager ◀ Provision of EA, QS and CDM Consultant Services for Chatsworth Avenue and Hadrians Community Centre ◀ Sandscale Integrated Depot - RIBA 3 Design Study T26-117ENV Archaeology Services for Unlocking Silent Heritage (Historic Cemeteries Enhancement) Project PEACEPLUS ◀ The Provision of Town Planner Services for the New Frimley Park Hospital and the Retained Estate at Frimley Park Flow Derivation Reviews ◀ Department for Communities Strategic Planning Services Framework 2026 Water Hygiene Safety & Maintenance Services ◀ Provision of PPA funded Solar PV Roof Array with battery storage Whitehouse Archaeological Mitigation Excavation for Cricket Ground Works Provision of MEP and Energy Consultant Services (4 Sites)GWASANAETHAU ASESIAD RISG TÂN | FIRE RISK ASSESSMENT SERVICES ◀ 2026-2027-007 Leak Detection Services TENDER FOR THE PROVISION OF AN INTEGRATED CONSULTANCY TEAM FOR DFC REGENRATION - OMAGH WAYFINDING SCHEME REF 2627 CP 088B.◀ Water Cycle Study Stage 1 and 2 PLANC (Permitting, Licences, Authorisations, Notifications & Consent) Assurance ◀ Prioritised Capital Improvements Programme - School Properties 2026-28 ISO11 Fumigation Lobby Replacement Project - Civil Works and CDM Principal Designer/Principal Contractor Role ◀ Provision of Grounds and Tree Maintenance to the British High Commission Nairobi LEAD DESIGNER: EXHIBITION AND GRAPHIC DESIGNER SPACE POD GALLERY SCIENCE MUSEUM LONDON ◀ Road Safety Audit Framework Specialist Consultancy Advice and Investigation Services COM 09 Floating Turbine Towing Challenges Cheshire and Warrington Combined Authority - Transport Operating Model, Functions Assessment and Transition Planning Fire Safety ◀ Masterplan for a future Romsey Health & Leisure Campus Albert Cross Design Contest ◀ Masterplan for a future Romsey Health & Leisure Campus COV-Winter Service Weather Data System (WMCA)◀ Masterplan for a future Romsey Health & Leisure Campus SME Energy Savings Programme ◀ Masterplan for a future Romsey Health & Leisure Campus Marine Consultancy - Future Port Talbot ◀ Masterplan for a future Romsey Health & Leisure Campus TFW1073.00 - Fluid Delivery System EICR - Testing and Remedials Provision of a Digital Intereactive Map for Witney, West Oxfordshire RFP - GT61EES82026 - Assessment Partner for EDGE Punjab Project with UNICEF

2026-2027-007 Leak Detection Services The Provision of Town Planner Services for the New Frimley Park Hospital and the Retained Estate at Frimley Park Water Cycle Study Stage 1 and 2 Prioritised Capital Improvements Programme - School Properties 2026-28 Provision of Grounds and Tree Maintenance to the British High Commission Nairobi Road Safety Audit Framework Department for Communities Strategic Planning Services Framework 2026 Provision of PPA funded Solar PV Roof Array with battery storage ◀ Playground Inspections ◀ Consultancy Services for PM Roles Across Multiple Capital Projects ◀ Provision of EA, QS and CDM Consultant Services for Crossways Close and Parkhurst Fields, Churt Masterplan for a future Romsey Health & Leisure Campus Masterplan for a future Romsey Health & Leisure Campus Masterplan for a future Romsey Health & Leisure Campus Masterplan for a future Romsey Health & Leisure Campus Masterplan for a future Romsey Health & Leisure Campus MD26097 - Plan Mid Devon Open Space, Allotment Play Area Study MD26097 - Plan Mid Devon Open Space, Allotment Play Area Study MD26098 - Plan Mid Devon Green Infrastructure Strategy Provision of EA, QS and CDM Consultant Services for Chatsworth Avenue and Hadrians Community Centre Sandscale Integrated Depot - RIBA 3 Design Study Health Surveillance Services Site Energy Project Development Services ◀ Principle Contractor for a new cemetery in Gillingham Quantity Surveying, Cost Consultancy and Project Management Services for an Integrated Contact Centre ◀ Clerk of Works for Cultural Quarter project Masterplan Feasibilities External Project Manager ◀ North Hertfordshire District Council Gypsy, Traveller and Travelling Showpeople Accommodation Assessment (GTAA)◀ Development of final EPC Wrapper for Scotland ◀ Quality Auditing of Mechanical Services ◀ Re-purposing Penrith Town Hall into a Creative and Community Hub

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Every date on this page is stated by the buyer in the published notice · bars show the final 10 days of each bidding window, ◀ marks notices open longer · values capped at £100m per notice · framework values are ceilings, not contract sizes · no projections or forecasts appear on this page · contains public sector information licensed under the Open Government Licence v3.0.