---
title: "Portcullis House Lifecycle Replacement Project"
ocid: "ocds-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "HOUSE OF COMMONS"
published: "2026-05-01"
---

# Portcullis House Lifecycle Replacement Project

Buyer: HOUSE OF COMMONS  
Current stage: Award  
OCID: ocds-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7

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## Summary

The "Portcullis House Lifecycle Replacement Project", spearheaded by the House of Commons in London, falls under the building installation work category. This procurement process, currently in the award stage, commenced on 3rd December 2025. It involves a two-stage contract with Early Contractor Involvement for the replacement of mechanical, electrical, and plumbing systems. The project’s estimated value ranges from £40 million to £50 million, and the completion of Stage 1 will determine the full value of Stage 2. The project's contract period spans from 8th December 2025 to 27th June 2029, with a procurement method of 'selective', calling off from a framework agreement. The award was granted to Willmott Dixon Construction Limited.

This tender presents a substantial growth opportunity for large construction companies adept in complex building installation projects, particularly those with a track record in government contracts and MEP system upgrades. Although the opportunity is not exclusively geared towards SMEs or VCSEs, it could promote collaborative ventures or joint bids, leveraging the expertise of various stakeholders to fulfil extensive and technical requirements. Businesses with a significant presence in the United Kingdom or established connections within the London region might find strategic value in engaging with such high-value government projects.

## Notice

The PCH M&E Lifecycle Replacement Project works are for the replacement of the life expired MEP systems throughout the building as detailed within the Scope and based on a case-by-case assessment to repair, enhance, replace, or renew each system throughout the building including heating, cooling, water, fire, and ventilation systems. The contractor is responsible for developing the design to RIBA Stage 4 specific. The contract is in two stages and allows for Early Contractor Involvement (ECI). The total contract value covers Stage 1 (ECI) (value: PS5,920,669.37), and Stage 2 (partial tendered value: PS18,810,958.80). The full value of Stage 2 will only be known at the end of Stage 1, once the design is complete. The estimated value of the entire contract (Stage 1 and Stage 2) is between PS40m and PS50m.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/b075a7c3-bab3-4d95-ada7-78e5dd35ce68 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Works |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 1 May 2026 |
| Submission deadline | 24 Feb 2025 |
| Future notice date | Not specified |
| Award date | 3 Dec 2025 |
| Contract period | 8 Dec 2025 - 27 Jun 2029 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £50,000,000 |
| Lots value | Not specified |
| Awards value | £58,929,389 |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | HOUSE OF COMMONS |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1A 2JH |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | TLI London |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | WILLMOTT DIXON CONSTRUCTION |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45300000 - Building installation work

## Release History

- 1 May 2026 at 13:09 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/b075a7c3-bab3-4d95-ada7-78e5dd35ce68

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/b075a7c3-bab3-4d95-ada7-78e5dd35ce68
  1st May 2026 - Awarded contract notice on Contracts Finder

## 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-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-63526473-11e7-4648-8dfe-3a92ff2e4fb7.json.