---
title: "DECC-Energy Performance of Housing Stock Research"
ocid: "ocds-h6vhtk-04f7c1"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04f7c1"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04f7c1.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04f7c1.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "SCOTTISH GOVERNMENT"
published: "2025-06-24"
---

# DECC-Energy Performance of Housing Stock Research

Buyer: SCOTTISH GOVERNMENT  
Current stage: Award  
OCID: ocds-h6vhtk-04f7c1

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## Summary

The Scottish Government has recently concluded the contracting process for a project titled "DECC-Energy Performance of Housing Stock Research," which falls under the environmental engineering consultancy services category. The award phase of the procurement has been completed, and the contract was granted to Cotality | Parity Projects as of 2nd June 2025 for an amount of £38,025. This project aligns with Scotland's commitment to reach net zero emissions by 2045, as outlined in their Heat in Buildings Strategy. The procurement was conducted using an open procedure and included criteria focused on both quality (70%) and price (30%). The project is located in the UKM region, with Edinburgh being the primary location, and is a significant component of a broader programme influenced by recent legislative priorities.

This tender presents substantial opportunities for businesses within the environmental, energy-efficiency consultancy, and research services sectors. Companies that specialize in providing analysis and consultancy related to energy performance and improvements in housing stock will find this contract attractive as it offers potential involvement in a pivotal aspect of Scotland's environmental agenda. The project encourages sustainable business practices and supports the growth of clean energy initiatives through strategic partnerships. Moreover, SMEs are particularly encouraged to participate, seeing that a significant portion of bids received were from small to medium enterprises, highlighting a welcoming environment for such businesses. The open procurement method and set criteria ensure a competitive landscape that rewards high-quality offerings and innovative solutions.

## Notice

The Scottish Government has legally committed to reach net zero by 2045 for the benefit of our environment, people, and prosperity and is committed to taking the required action. We have confirmed in the 2024 to 2025 Programme for Government that tackling the climate emergency is a priority. To meet net zero, transformation will be required across all sectors of our economy and society, including from our homes and places of work. Heating Scotland's buildings accounts for 20% of emissions - the third largest cause of greenhouse gas emissions in Scotland - and therefore reducing emissions from this sector is vital to reaching the Government's ambition. The Scottish Government published its Heat in Buildings Strategy in October 2021, which set out our vision for decarbonising Scotland's buildings by 2045. We continue to lay the foundations to support the growth of clean heating and energy efficiency in Scotland. The objective of this work is to provide an analysis of the Scottish housing stock's performance in each of the new EPC ratings set out above, using the Scottish EPC wrapper and HEM. This includes how homes would be rated in the new EPC ratings compared with how they are rated in the current EPC system, and then also how energy efficiency improvements might impact ratings across types of homes and in different sectors.

### Lot Information

Lot 1

The Scottish Government has legally committed to reach net zero by 2045 for the benefit of our environment, people, and prosperity and is committed to taking the required action. We have confirmed in the 2024 to 2025 Programme for Government that tackling the climate emergency is a priority. To meet net zero, transformation will be required across all sectors of our economy and society, including from our homes and places of work. Heating Scotland's buildings accounts for 20% of emissions - the third largest cause of greenhouse gas emissions in Scotland - and therefore reducing emissions from this sector is vital to reaching the Government's ambition. Energy Performance Certificates (EPCs) are being reformed this year, with new regulations due to be laid in Parliament in September. When these regulations come into force in autumn 2026, this will mean that the ratings shown on a domestic EPC will be different to the current ones. The new 'headline' rating will be called the Heat Retention Rating (HRR) and will demonstrate the fabric efficiency of the home or building. The new EPC will also have a new Heating System Type Rating (HSTR) showing whether the installed heating system is polluting, hybrid or clean, its emissions and efficiency. We expect that Parliament will want to understand the performance of the stock against the new ratings - in particular the numbers of properties (and their tenures) falling into the new Heat Retention Rating bandings (A-G) from day one. The objective of this work is to provide an analysis of the Scottish housing stock's performance in each of the new EPC ratings set out above, using the Scottish EPC wrapper and HEM. This includes how homes would be rated in the new EPC ratings compared with how they are rated in the current EPC system, and then also how energy efficiency improvements might impact ratings across types of homes and in different sectors.

Renewal: An optional 2 month extension will be available to be utilised at the discretion of Scottish Ministers.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/034812-2025 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 24 Jun 2025 |
| Submission deadline | 14 Apr 2025 |
| Future notice date | Not specified |
| Award date | 1 Jun 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £60,000 |
| Lots value | £60,000 |
| Awards value | Not specified |
| Contracts value | £38,025 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SCOTTISH GOVERNMENT |
| Locality | EDINBURGH |
| Post town | Edinburgh |
| Postcode | EH6 6QQ |
| Country | Scotland |
| ITL 1 | TLM Scotland |
| ITL 2 | TLM1 East Central Scotland |
| ITL 3 | TLM13 City of Edinburgh |
| Local authority | City of Edinburgh |
| Electoral ward | Leith |
| Westminster constituency | Edinburgh North and Leith |
| Delivery location | TLM Scotland |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | COTALITY \| PARITY PROJECTS |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services
- 73 - Research and development services and related consultancy services
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 71313000 - Environmental engineering consultancy services
- 71314000 - Energy and related services
- 71314300 - Energy-efficiency consultancy services
- 73110000 - Research services
- 90700000 - Environmental services

## Release History

- 24 Jun 2025 at 14:43 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/034812-2025
- 24 Mar 2025 at 10:36 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/010845-2025

## Notice URLs

- http://www.publictendersscotland.publiccontractsscotland.gov.uk
- http://www.scotland.gov.uk
- https://api.publiccontractsscotland.gov.uk/v1/Notice?id=ocds-r6ebe6-0000794127
- https://www.publiccontractsscotland.gov.uk/search/Search_AuthProfile.aspx?ID=AA10482

## 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-04f7c1. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04f7c1.json.