---
title: "RIBA Stages 2 - 4 Architectural Services for Guildhall West Wing Windows & Cladding Refurbishment"
ocid: "ocds-h6vhtk-06df53"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06df53"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06df53.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06df53.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "The Mayor and Commonalty and Citizens of the City of London"
published: "2026-08-07"
---

# RIBA Stages 2 - 4 Architectural Services for Guildhall West Wing Windows & Cladding Refurbishment

Buyer: The Mayor and Commonalty and Citizens of the City of London  
Current stage: Award  
OCID: ocds-h6vhtk-06df53

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## Summary

The City of London Corporation commissioned architectural services for the Guildhall West Wing Windows and Cladding Refurbishment Project. The requirement covers RIBA Stages 2 to 4: developing the design, progressing technical design and supporting the project through the relevant pre-construction and construction stages. It is a professional services opportunity focused on architectural design for the refurbishment of windows and cladding, rather than construction works themselves. The buyer is The Mayor and Commonalty and Citizens of the City of London. Delivery is in the United Kingdom, with the procurement recorded for the City of London. The requirement was structured as a single package and relates to a specific Guildhall building refurbishment project.

The procurement is complete and has been awarded following a below-threshold limited competition. The contract was signed on 18 May 2026 and runs from 25 May 2026 to 29 March 2027. Coles Conservation Architects Limited was awarded the single contract for £96,000 excluding VAT, or £115,200 including VAT. The award is active and the contract is active. The procurement used a limited procedure rather than an open competition. The requirement was evaluated through that limited competition, with the available outcome identifying the selected supplier and the completed award. The contract covers the architectural design services associated with the Guildhall West Wing windows and cladding refurbishment, across RIBA Stages 2 to 4.

This procurement demonstrates demand from the City of London Corporation for specialist architectural input to refurbishment of a significant civic building. Firms best placed for comparable future requirements would be architectural practices able to provide a coordinated service across RIBA Stages 2 to 4, from developing the design through technical design and project delivery support. Relevant capability includes architectural design for window and cladding refurbishment and conservation-focused work. The awarded supplier is an SME specialising in conservation architecture, indicating that a smaller specialist practice can be credible for this type of requirement. Competitors should therefore be able to combine conservation architecture expertise with practical refurbishment design capability and the capacity to support a project through its full design and delivery stages.

## Notice

The Provision of RIBA Stages 2 - 4 Architectural Services for the Guildhall West Wing Windows and Cladding Refurbishment Project.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/075388-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Limited |
| Procurement method details | Below threshold - limited competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 7 Aug 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 18 May 2026 |
| Contract period | 25 May 2026 - 29 Mar 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £96,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | The Mayor and Commonalty and Citizens of the City of London |
| Locality | CITY OF LONDON |
| Postcode area | Central London |
| Postcode | EC2P 2EJ |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI43 Haringey and Islington |
| Local authority | Islington |
| Electoral ward | Clerkenwell |
| Westminster constituency | Islington South and Finsbury |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | Coles Conservation Architects Limited |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71220000 - Architectural design services

## Release History

- 7 Aug 2026 at 15:10 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/075388-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/075388-2026
  7th August 2026 - Contract details notice on Find a Tender

## Notice URLs

- https://www.cityoflondon.gov.uk
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-h6vhtk-06df53. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06df53.json.