---
title: "CPT_25_15 Road & structures engineering services contract"
ocid: "ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "NATIONAL AUDIT OFFICE"
published: "2026-03-09"
---

# CPT_25_15 Road & structures engineering services contract

Buyer: NATIONAL AUDIT OFFICE  
Current stage: Award  
OCID: ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4.json)

## Summary

The National Audit Office (NAO), based in London, England, has engaged Ridge & Partners LLP for consulting services related to road engineering as part of the Strategic Road Network valuation for National Highways. The procurement process was conducted using a selective method, specifically a call-off from the Crown Commercial Services Management Consultancy Framework Three (MCF3). The contract was initiated on 1st April 2025 and runs through to 31st March 2030, with an estimated value of £375,000 including VAT for the entire period. Originally spanning one year, the contract has been extended for an additional year through to 31st March 2027. This contract falls under the industry category of accounting and auditing services and focuses on the United Kingdom.

The contract presents considerable opportunities for growth, particularly for small and medium-sized enterprises (SMEs) and voluntary, community, and social enterprises (VCSEs). Businesses specialising in engineering consultancy services, particularly those with expertise in transport infrastructure and depreciation assessments, could benefit significantly. Ridge & Partners LLP's large scale and established presence make them well-suited to meet the complex demands of both the NAO and National Highways. This procurement creates avenues for businesses to contribute to national projects that enhance infrastructure efficiency, offering long-term sustainability and development prospects. It also provides interested parties a chance to engage in extensive consultancy work with government agencies, fostering professional relationships and expanding their operational scope across the UK.

## Notice

The National Audit Office (NAO) awarded a contract to Ridge & Partners LLP who will be expected to consult on road engineering assumptions underpinning the valuation of the Strategic Road Network (SRN) in the National Highways (NH) accounts, including assessing the condition-based depreciation estimates. This contract has been direct awarded using Lot 1: Business of Crown Commercial Services Management Consultancy Framework Three (MCF3). The new contract will run for an initial period of 1 year from Tuesday 1st April 2025 until Tuesday 31st March 2026, with the option to further extend for a period of up to 4 years (4 periods of 12 months) until Sunday 31st March 2030 at the NAO's discretion. The estimated contract value will be PS375,000 inclusive of VAT over the 5 years duration. As of 1st April 2026, the contract will be extended for 12 months from Wednesday 1st April 2026 to Wednesday 31st March 2027.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/9f36ea96-838b-4b1c-a0e7-a8064a1e7e1f |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | SME, VCSE |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 9 Mar 2026 |
| Submission deadline | 31 Jan 2025 |
| Future notice date | Not specified |
| Award date | 10 Mar 2025 |
| Contract period | 31 Mar 2025 - 31 Mar 2030 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £375,000 |
| Lots value | Not specified |
| Awards value | £375,000 |
| 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 | RIDGE & PARTNERS |

## CPV Codes

### Divisions

- 79 - Business services: law, marketing, consulting, recruitment, printing and security

### Codes

- 79210000 - Accounting and auditing services

## Release History

- 9 Mar 2026 at 10:07 - AwardUpdate - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/9f36ea96-838b-4b1c-a0e7-a8064a1e7e1f
- 9 Mar 2026 at 10:02 - AwardUpdate - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/9f36ea96-838b-4b1c-a0e7-a8064a1e7e1f
- 25 Mar 2025 at 15:08 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/9f36ea96-838b-4b1c-a0e7-a8064a1e7e1f

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/9f36ea96-838b-4b1c-a0e7-a8064a1e7e1f
  9th March 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-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-4c42d998-a761-4efb-a6f0-8a1e750645c4.json.