Find a TenderAwardedContract award notice
Published 10 Sept 2025, 10:57 BST

Official UK procurement notice

Design Architect for a New Wing at the National Gallery

Official notice

Authority: The National Gallery

ServicesCompetitive flexible procedureAbove thresholdSME suitable
Published estimate£15,000,000≈ £2.6m / year · £18,000,000 inc. VAT43.4% below published estimate
Submissions closed 17 Oct 2025awarded 2 Apr 2026
Award (standstill) to Kengo Kuma & Associates, INC.
Contract term 5 yrs 9 moends 31 Dec 2031 · starts 15 Apr 2026

What is being bought

Published requirement description

Following our 200th anniversary celebrations, we are launching a landmark architectural competition for the design of a transformative new wing and public realm.

Our ambition is to create an architecturally distinguished, sustainable, and state-of-the-art new wing and public space.

The new wing will be built on the last remaining part of the National Gallery campus: St Vincent House. The property was acquired nearly 30 years ago, for the purpose of expanding gallery space, and currently houses a hotel and office complex.

The project aims to invigorate this corner of central London, connecting Trafalgar Square and Leicester Square. Embedding the Gallery as a cornerstone within London's arts quarter, it will also cement our reputation as a leader in the art world and the UK's commitment to culture and heritage.

The purpose of this competition is to find exceptional architects to take on the extraordinary responsibility that designing this new wing will entail.

  • How the procedure runs: Stage 1: -submission of PSQ to meet conditions of participation -down selection of suppliers based on technical capability and capacity -5 / 6 suppliers invited to tender Stage 2: -mid-tender technical meeting to review initial ideas -tender submission -site visit to all compliant suppliers -optionally, to be determined, an exhibition of submission material -interview of all compliant bids

CPV: Architectural design services

The lotProcurement structure

single lot · value published
Lot #1Awarded 5 yrs 9 moSMEPublished value£15,000,000
Contract period: 15 Apr 2026 – 31 Dec 2031 (5 yrs 9 mo)Value: £15,000,000 exc. VAT · £18,000,000 inc. VAT
Delivery: LondonEligibility: SME eligible
Second stage: 5–6 candidates invited to tender
Pre-qualification & selection criteria (PQQ)3
  • Economic & financial standing

    as stated in the documentation

  • Technical & professional ability

    as stated in the documentation

  • Condition of participation

    Assessment as set out in the documents

    shortlisting

What it takes to win
i

How this buyer will score bids.

The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).

Evaluation split and conditions of participation as published; the tender pack may add more
How bids were scored
Quality: 60%Price: 30%Social value: 10%
Published sub-criteria (5)
  • Design concept: 40%
  • Design delivery methodology and resourcing: 15%
  • Interview: 5%
  • Fees: 30%
  • Social Value: 10%
Published award criteria (5)
  • Design concept
  • Social Value
  • Design delivery methodology and resourcing
  • Fees
  • Interview
Conditions of participation3
  • Economic & financial standing

    as stated in the documentation

  • Technical & professional ability

    as stated in the documentation

  • Condition of participation

    Assessment as set out in the documents

    shortlisting
What this means for your bid
  • Price carries 30 of 100 points: a 10% discount moves about 3 points. The method statement decides this lot, not the discount.

Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.

Procedure terms & legal framework

From the official record
Procedure method
Competitive flexible procedure
Legal basis
UKPGA · 2023/54 Procurement Act 2023
Procurement category
Services
Notice status
Awarded
Procurement threshold
Above threshold (FTS publication)
Regulatory regime
Standard
Commercial structure
Stand-alone contract (no framework)
Competition type
Competitive procedure
GPA / WTO covered
Yes (GPA)
Recurring procurement
Unspecified in notice
First published
10 Sept 2025, 10:57 BST
Last source update
7 Apr 2026, 12:30 BST
Award evaluation window
Submission end – 3 Apr 2026
FTS notice number
2025/S 000-055288
Latest notice
Contract award notice (UK6)
Classification (CPV)
Architectural design services
Delivery area
London (UKI32)
Official registry OCID
ocds-h6vhtk-059759 Find a Tender
How it runs

Stage 1:

-submission of PSQ to meet conditions of participation

-down selection of suppliers based on technical capability and capacity

-5 / 6 suppliers invited to tender

Stage 2:

-mid-tender technical meeting to review initial ideas

-tender submission

-site visit to all compliant suppliers

-optionally, to be determined, an exhibition of submission material

-interview of all compliant bids

Review and risk notes
Risks

Delays may occur due to external issues such as planning, archaeology, on-site discoveries etc. This could lead to an extension of the overall programme.

How it was run

Official notice
Run through: Delta eSourcing · Who buys & how to bid on Delta
Public notice page · account needed to bidElectronic submission allowedLanguage: EN
Access & registration note: Free Select account; no DUNS asked at signup
Requests to participate (first stage)
17 Oct 2025, 12:00 BST
Submission deadline
17 Oct 2025, 12:00 BST
Clarification deadline
26 Sept 2025, 18:00 BST
Submission channel
Official e-sourcing portal
Electronic submission
Allowed
Accepted languages
en
Detailed submission instructions & authority contactsFrom official release

Timeline

10 Sept 2025 → 16 Apr 2026 · 8 dates
  1. Tender notice published
    10 Sept 2025, 10:57 BST
  2. Clarification questions by395 days ago
    26 Sept 2025, 18:00 BST
  3. Submission deadline374 days ago
    17 Oct 2025, 12:00 BST
  4. Award decision expected by206 days ago
    3 Apr 2026, 23:59 BST
  5. Assessment summaries sent203 days ago
    7 Apr 2026, 00:00 BST
  6. Latest notice published202 days ago
    7 Apr 2026, 12:30 BST
  7. Contract starts195 days ago
    15 Apr 2026, 00:00 BST
  8. Standstill ends193 days ago
    16 Apr 2026, 23:59 BST

Notice history

4 events · 2 releases on Find a Tender · since 10 Sept 2025
  1. Tender notice published
    10 Sept 2025, 10:57 BST
    UK4
  2. Contract award notice published
    7 Apr 2026, 12:30 BST
    UK6
  3. Status changed to complete
    7 Apr 2026, 12:30 BST
  4. Contract signature expected
    1 May 2026, 23:59 BST
    scheduled

Commercial outcome & contract awards

Published awards, contracts and bid statistics, not a forecast
Awards 1
Awarded value £8,495,0001 award exc. VAT
Bids received 64 from SMEs
Named bidders 6published on the award notice
Awarded toValueDateStatus
Kengo Kuma & Associates, INC.1 May 2026 – 31 Dec 2031£8,495,0002 Apr 2026standstill to 16 Apr 2026Standstill

Bid statistics published by the authority

BidsSMEVCSEValid bid range
6final-stage tenders40—

Who bid

Bidders as named on the Procurement Act 2023 award notice. “Won” means the bidder holds an award on this notice.

Contracting authority & participating public bodies

National Gallery

Contracting authorityPublic authority - central government GB-PPON: PGYR-7259-GLQG Trafalgar Square, London, London, WC2N 5DNContact email

Bidders & participating suppliers

6 commercial parties on the notice · 1 awarded

Official documents & specifications (4)

Official links; attachments are not copied

Tender pack and attachments

  • Bidding documents and specifications tenderBidding documents and specificationsAll queries and submissions must be made through the eProcurement portal. Information is also available at https://colander.co.uk/architectural-competitions/colander-competitions/the-national-gallery
  • Bidding documents and specificationstenderBidding documents and specificationsAccess: Stage 2 documentation will be issued to the shortlisted suppliers

Notices published for this procedure

  • Contract award notice awardContract award noticeUK6Contract award notice on Find a Tender
  • Tender notice tenderTender noticeUK4Tender notice on Find a Tender