---
title: "CPT_25_30 Decarbonisation Project - Cost Consultancy Services"
ocid: "ocds-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "NATIONAL AUDIT OFFICE"
published: "2026-01-06"
---

# CPT_25_30 Decarbonisation Project - Cost Consultancy Services

Buyer: NATIONAL AUDIT OFFICE  
Current stage: Award  
OCID: ocds-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac

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## Summary

The National Audit Office has awarded a contract for cost consultancy services under the title "CPT_25_30 Decarbonisation Project - Cost Consultancy Services." This procurement effort focuses on quantity surveying services, specifically targeting the decarbonisation of their headquarters on Buckingham Palace Road, London. The procurement was conducted via an open procedure (below threshold) method, suitable for SMEs and VCSEs, and falls under the services category. The initial contract runs from 1 October 2025 to 31 March 2026, with the possibility of a six-month extension up to 30 September 2026. The total contract value is £25,200, and the primary contracting authority is the National Audit Office, based in London.

This tender offers significant growth opportunities for businesses specialising in net-zero and decarbonisation efforts, especially those with expertise in cost consultancy and quantity surveying. SMEs and socially responsible enterprises may find this contract particularly appealing, given its prioritisation of sustainable development goals. By engaging in this project, companies can demonstrate their commitment to environmental sustainability and efficiency, while gaining exposure and experience in managing governmental contracts related to decarbonisation projects in a major city location. Businesses fitting this profile should consider preparing for similar future opportunities and leveraging this experience to enhance their market positioning.

## Notice

The NAO has awarded a contract for Cost Consultancy Services with expertise in net-zero and decarbonisation to deliver a set of prioritised and costed net zero options to achieve the high level outcome of decarbonising its headquarters on Buckingham Palace Road, London. This is a six month contract with the provision to extend for a further 6 months. Initial contract is from 1 October 2025 - 31 March 2026. The final expiry should the contract be extended will be 30 September 2026. The procurement route is Competitive - Non FTS.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/dc3cb123-16dd-42e5-a8f2-4cf5a971a9e9 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure (below threshold) |
| Tender suitability | SME, VCSE |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 Jan 2026 |
| Submission deadline | 1 Jul 2025 |
| Future notice date | Not specified |
| Award date | 9 Aug 2025 |
| Contract period | 30 Sep 2025 - 31 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £25,200 |
| Lots value | Not specified |
| Awards value | £25,200 |
| 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 | NATIONAL AUDIT OFFICE |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1W 9SP |
| 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 | Pimlico North |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CB3 CONSULTING |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71324000 - Quantity surveying services

## Release History

- 6 Jan 2026 at 11:15 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/dc3cb123-16dd-42e5-a8f2-4cf5a971a9e9

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/dc3cb123-16dd-42e5-a8f2-4cf5a971a9e9
  6th January 2026 - Awarded contract notice on Contracts Finder

## Notice URLs

- https://www.nao.org.uk

## 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-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-8681547e-c22d-4b80-9bc2-9db2c22b92ac.json.