---
title: "NHM150 Western Galleries - Base Build Mechanical, Electrical and Public Health"
ocid: "ocds-h6vhtk-06a2f4"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06a2f4"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06a2f4.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06a2f4.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "NATURAL HISTORY MUSEUM"
published: "2026-06-09"
---

# NHM150 Western Galleries - Base Build Mechanical, Electrical and Public Health

Buyer: NATURAL HISTORY MUSEUM  
Current stage: Tender  
OCID: ocds-h6vhtk-06a2f4

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## Summary

The Natural History Museum in London has initiated a tender process for the NHM150 Western Galleries project, focusing on mechanical, electrical, and public health works as part of a transformative effort to renovate and reopen its internal spaces by 2031. This procurement, set in the services industry category, involves significant restoration and system updates across various galleries, including the Dinosaur Gallery and Origins Gallery. The process follows an open procedure method, with the tender currently at the active stage. Interested parties must submit their proposals before the deadline on 14th July 2026. The total value of the project is estimated at £2.4 million gross, and the award notification is expected by 11th September 2026, with project commencement anticipated by late September of the same year.

This tender presents substantial opportunities for businesses specializing in engineering design services for mechanical and electrical installations, and those providing consultative and acoustics consultancy services. As this project involves phases from RIBA stages 2-7, companies with expertise in conservation, structural works, and HVAC systems will find this opportunity conducive for growth. The procurement process supports involvement from SMEs, further broadening the scope for regional firms to participate. Successful bidders will contribute significantly to the enhancement of one of the UK's most prestigious museums, ensuring their work garners high visibility and potentially leading to further opportunities in public sector procurement. Enquiries can be sent until 16th June 2026, and interested parties must complete an NDA to access tender documents, enhancing security and confidentiality in the procurement process.

## Notice

The Natural History Museum has announced important transformations of its internal spaces ahead of the 150th anniversary of the opening of the South Kensington site, occurring in 2031. As part of these transformations, the popular Dinosaur Gallery will be restored, and the Origins Gallery, the Old General Herbarium and the Swing Space, currently closed to the public, will be reopened and returned to public use. These galleries are identified collectively as the' Western Galleries'. The works in each gallery will be articulated in two phases: base build, which is the object of this tender, and fit out, which will be tendered separately. The first works to commence will be the Swing Space in Autumn 2027 (base build) for an opening in 2028, followed shortly after by the Botany Library and the Old General Herbarium, due in 2029, Dinosaur Gallery, opening in 2030, and Origins Gallery that will be completed in 2031. A Feasibility Study has just been completed both for base build and fit-out leading to the identification of a set of recommended options for the base build and a set of design principles for the fit-out. The base build works for all the galleries in scope will encompass design and works for (high-level scope, including but not limited to): - Conservation of the gallery spaces - Making good of the fabric of the building - Removal of redundant services - New ventilation and heating / cooling system and associated Building Works in Connection (BWIC) - Mechanical, electrical and public health systems - Creation of new plant rooms to support the increased needs of the spaces - Required structural works Additional works (including but not limited to): - Clearance of existing spaces - Dismantling and removal of Dinosaur Gallery walkway, with relocation of connected existing service. - Decant and recant of Botany Library contents - Temporary relocation of Dino Shop - Decant and relocation of offices to make room for the new circulation core - Conservation of existing fixtures and finishes (e.g. cabinets and bookcases) in Old General Herbarium and Botany Library - Removal of existing Dino shop and dog leg corridor in the Swing Space - Creation of 2 new vertical circulation cores (lifts and staircase), with all the related M&E works - Creation of new toilets and ancillary spaces, with all the related MEPH works - Relocation and enlargement of ground floor cafe and MEP service provision for it - Creation of new cafe on the first floor and MEP service provision for it - Fit out of new Dino Shop and the two cafes. The appointed consultants will be asked to act as Mechanical, Electrical and Public Health (MEPH) and Acoustics consultant, developing the MEPH design for the galleries and ancillary spaces across RIBA stages 2-7, working with the other consultants and Museum stakeholders to ensure the appropriate solutions are identified and developed. In order to access the documents for the tender exercise, all tenderers must complete the NDA available in the SQ stage document library. The NDA must be signed by an appropriate representative of the tendering company and returned to the Museum for countersignature. Once the NDA has been completed by both parties, it will be sent to tenderers for record keeping. The tenderer will then be added to the Tenderbox stage. Once bidders have been added to the Tenderbox they will receive an automated e-mail from Delta.

### Planning Information

Bidders are invited to an online Bidder Briefing Session and Q&A (to be held on Microsoft Teams) at 9am, Wednesday 3rd June 2026. In order to register for this session bidders should sign the NDA which is available in the SQ stage document library. This must be returned by 3pm, Tuesday 2nd June. The NDA must be signed by an appropriate representative of the tendering company and returned to the Museum for countersignature.
To access the SQ stage, please click here: https://www.delta-esourcing.com/respond/6W773NBM42
Once the NDA has been completed by both parties, it will be sent to tenderers for record keeping. The tenderer will then be invited to the briefing session. The date and time of the session will be confirmed shortly, and the invite will be sent out Tuesday 2 June. The session will be recorded and circulated to all bidders, including those who were unable to attend.
All bidders who have completed the NDA will be given access to the tender documents, which are currently expected to be available from the 11th May 2026 (this date is subject to change).

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/054229-2026 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Planning, Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 9 Jun 2026 |
| Submission deadline | 14 Jul 2026 |
| Future notice date | 2 Jun 2026 |
| Award date | Not specified |
| Contract period | 27 Sep 2026 - 31 Mar 2032 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £2,000,000 |
| Lots value | £2,000,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NATURAL HISTORY MUSEUM |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW7 5BD |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI33 Kensington & Chelsea and Hammersmith & Fulham |
| Local authority | Kensington and Chelsea |
| Electoral ward | Brompton & Hans Town |
| Westminster constituency | Kensington and Bayswater |
| Delivery location | TLI London |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71313200 - Sound insulation and room acoustics consultancy services
- 71318000 - Advisory and consultative engineering services
- 71321000 - Engineering design services for mechanical and electrical installations for buildings
- 71333000 - Mechanical engineering services
- 71334000 - Mechanical and electrical engineering services

## Release History

- 9 Jun 2026 at 11:08 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/054229-2026
- 26 May 2026 at 10:20 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/048541-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/054229-2026
  9th June 2026 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/048541-2026
  26th May 2026 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- https://www.delta-esourcing.com/respond/6W773NBM42
- https://www.delta-esourcing.com/respond/V26X2294RA
- 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-06a2f4. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06a2f4.json.