Ends Apr 2027
Contract Award Notice
Department for Energy Security and Net Zero (DESNZ) · 2-year contract
Held by City Science Corporation Limited
Sustainable building design tenders and contracts
UK public sector, covering 600+ buyer sites
258 sustainable building design tenders and contracts, 83 this year.
Updated 4 November 2026 · compiled by BidSkim Limited · How we count
- Awarded a month£100k
- Contracts a month1.5
- Won by SMEs61%
- Renewing in 6 months1
- Frameworks and DPSs8
- Live now2See them →
Sustainable building design contracts
Tap a region to see its contracts. Pick as many as you like.
How many sustainable building design contracts do keyword alerts miss?
In the last year, a "breeam" alert would have missed 23 of 25 sustainable building design contracts (92%) and an expert list of 13 phrases 12 (48%). How we measured this
Keyword alert"breeam"
92% missed
23 of 25
Expert list13 phrases
48% missed
12 of 25
Expert list: breeam, sustainability consultant, whole life carbon, energy strategy, energy assessment, sustainable design consultant, sap calculation, passivhaus, net zero building design, overheating assessment, part l compliance, sustainability strategy, energy modelling
BidSkim reads every notice in full and matches the work, not the words.See what BidSkim finds for you
35 contracts across the UK, of any size
Live now
2 sustainable building design opportunities are open now
- Awarded22 Sep 2026Energy strategy - BWR Phase 2Bath & North East Somerset Council · South WestWon by Hodkinson Consultancy£17k
- Awarded15 Sep 2026GMCA 1958 Technical Support for Delivery (Energy/Design)Greater Manchester Combined Authority · North WestWon by Levitt Bernstein£59k
- Awarded8 Sep 2026BREEAM In-Use PilotMinistry of JusticeWon by Building Research Establishment (BRE)£70k
- Awarded6 Aug 2026Building Services and Sustainability ConsultancyWest Suffolk NHS Foundation Trust · East of EnglandWon by Eta Projects Ltd
- Awarded5 Aug 2026High Path Phase 4-7 Sustainability Strategy Whole Life Carbon Assessment ServicesClarion Housing Group · LondonWon by Wallace Whittle Limited£109k
- Awarded31 Jul 2026Consultancy to develop WLC guidance & deliver pilot Whole Life-cycle Carbon Assessments (WLCAs)City of London Corporation · LondonWon by Elliott Wood Partnership Ltd£88k
- Awarded30 Jul 2026Sustainability Consultant for the New Wing at the National GalleryNational Gallery · LondonWon by Building Design Partnership (BDP)£199k
- Awarded24 Jul 2026Town Hall Roof Project- delivery of extended sustainability studyOxford City Council · South EastWon by Purcell£51k
- Awarded21 Jul 2026Station Approach, Dorking - MEP, Vertical Transportation, Energy & Sustainability ConsultantClarion Housing Group · South EastWon by Wallace Whittle Limited
- Awarded10 Jul 2026High Path Phase 3 - MEP, Utilities, Vertical Transport, Sustainability RIBA Stages 1-3Clarion Housing Group · LondonWon by Wallace Whittle Limited
- Awarded5 Jul 2026Energy Services for development at Elsfield Hall phase 2Oxford City Council · South EastWon by XCO2£32k
- Awarded3 Jul 2026Energy Services for development at Cave Street, OxfordOxford City Council · South EastWon by XCO2£35k
- Awarded5 Jun 2026CONTRACT FOR NET ZERO CARBON PLANNING POLICY EVIDENCE FOR GLOUCESTERSHIRE'S LOCAL PLANSGloucester City Council · South WestWon by Bioregional£35k
- Awarded29 May 2026Passivhaus Certifier for the Construction of Causeway Green Primary SchoolSandwell Metropolitan Borough Council · West MidlandsWon by ZE Passivhaus Services Ltd£14k
- Awarded20 May 2026Passivhaus Certifier for the Construction of Causeway Green Primary SchoolSandwell Metropolitan Borough Council · West MidlandsWon by ZE Passivhaus Services Ltd£14k
- Awarded19 May 2026CAP26109 Mechanical, Electrical and Energy Contactor Appointment - Seabury HotelTorbay Council · South WestWon by Eco-Nexus Engineering Ltd
- Awarded14 May 2026Beauly, Dingwall, Thurso Community Pods - Passivhaus CertifierThe Highland Council · ScotlandWon by ZE Passivhaus Services Ltd£97k
- Awarded22 Apr 2026HIP Lot 2 - Fortrose, Inverness High/NW, Charleston Community POD - Net Zero ConsultantThe Highland Council · ScotlandWon by ARMILA Sustainability Services£54k
- Awarded22 Apr 2026HIP Lot 1 - Beauly, Tornagrain, Dingwall, Thurso Community POD - Net Zero ConsultantThe Highland Council · ScotlandWon by ARMILA Sustainability Services£74k
- Awarded21 Apr 2026Fortrose, Inverness, Charleston Community Pods - Passivhaus CertifierThe Highland Council · ScotlandWon by ZE Passivhaus Services Ltd£70k
- Awarded24 Mar 2026Sustainable Schools Challenge Critical Friend and Sustainability Advisor - C194/2024/2025Llywodraeth Cymru / Welsh Government · WalesWon by Down to Earth Project£127k
- Awarded20 Jan 2026Development of an Operational Energy and Embodied Carbon Evidence base for Planning PolicySouth Downs National Park Authority · South EastWon by Levitt Bernstein£26k
- Awarded14 Jan 2026PS-25-253 - Passivhaus Modelling Consultancy Services - Doon Campus (PRJ0013696)East Ayrshire Council · ScotlandWon by Luths Services Ltd£20k
- Awarded4 Dec 2025GMCA 1722 Consultancy for the provision consultancy services relating to Truly Affordable Net Zero Homes building standards & costsGreater Manchester Combined Authority · North WestWon by WSP£35k
- Awarded30 Sep 2025Sustainability Design Standard - Advisory SupportCity of London Corporation · LondonWon by Arcadis£115k
- Awarded30 Jul 2025Sustainability / BREEAM services for the tactical firearm training facilityCity of London Corporation · LondonWon by Waterman£49k
- Awarded7 Jul 2025Ravelin House Forensic RelocationUniversity of Portsmouth · South EastWon by Ridge and Partners LLP£43k
- Awarded27 Jun 2025Net Zero Design Standard consultancy.City of London Corporation · LondonWon by Arcadis£72k
- Awarded29 Apr 2025South Thamesmead Phase 3: Passivhaus ConsultantPeabody · LondonWon by Beyond CArbon£209k
- Awarded23 Apr 2025Contract Award NoticeDepartment for Energy Security and Net Zero (DESNZ)Won by City Science Corporation Limited£807k
- Open to joinApply by 10 Nov 2026Yorkshire and the Humber framework
- Open to joinOpen nowEast of England DPS3 suppliers on it
Where to bid
Where sustainable building design tenders are run
Delta eSourcing3 23%- eTenderWales3 23%
EU-Supply1 8%
In-Tend1 8%
Kent Business Portal1 8%- Other portals (4)4 31%
Tenders published in the last year that name the bid portal they run on.
Frameworks and DPS
8 frameworks and DPSs for sustainable building design work are running. 2 are open to join now.
ZE Passivhaus Services Ltd won the most sustainable building design contracts
City Science Corporation Limited won the most by value. Each dot is one contract, coloured by who bought it.
CouncilsCentral governmentHousingNHS and healthEducation
| Rank | Contractor | Contracts won, by buyer | Contracts | Value won | Buyers | Share |
|---|---|---|---|---|---|---|
| 1 | ZE Passivhaus Services Ltd West Midlands · SME · See every contract | 4 | £29k | 2 | ||
| 2 | Wallace Whittle Limited London · See every contract | 3 | £109k | 1 | ||
| 3joint | Arcadis London · SME · See every contract | 2 | £187k | 1 | ||
| 3joint | Levitt Bernstein North West · SME · See every contract | 2 | £86k | 2 | ||
| 3joint | Eight Versa Ltd East of England · SME · See every contract | 2 | £69k | 2 | ||
| 3joint | XCO2 South East · SME · See every contract | 2 | £66k | 1 | ||
| 3joint | ARMILA Sustainability Services Scotland · SME · See every contract | 2 | Not published | 1 | ||
| 8joint | City Science Corporation Limited | 1 | £807k | 1 | ||
| 8joint | Beyond CArbon London · SME · See every contract | 1 | £209k | 1 | ||
| 8joint | Building Design Partnership (BDP) London · See every contract | 1 | £199k | 1 |
15 more sustainable building design contractors ranked. See the full ranking →
Win sustainable building design contracts? Share your ranking.
Who buys
Councils award 66% of sustainable building design contracts
Contracts with a published value in the last 2 years, from the type of buyer to the size of the contract.
6 buyers bought sustainable building design more than once in the last 2 years
Each dot is a buyer, by how many sustainable building design contracts it awarded in the last 2 years.
See who they are and when they usually buy →
Few and big, or many and small
Each dot is a buyer: how many sustainable building design contracts it awarded against what they were worth. The busiest and biggest are named.
CouncilsCentral governmentHousingNHS and healthEducation
Top buyers by contracts awarded
| Rank | Buyer | Contracts | Value |
|---|---|---|---|
| 1 | City of London Corporation | 4 | £324k |
| 2 | The Highland Council | 4 | £294k |
| 3 | Oxford City Council | 3 | £118k |
| 4 | Clarion Housing Group | 3 | £109k |
| 5 | Greater Manchester Combined Authority | 2 | £95k |
| 6 | Sandwell Metropolitan Borough Council | 2 | £29k |
| 7 | Department for Energy Security and Net Zero (DESNZ) | 1 | £807k |
| 8 | Peabody | 1 | £209k |
| 9 | National Gallery | 1 | £199k |
| 10 | Llywodraeth Cymru / Welsh Government | 1 | £127k |
100 sustainable building design contracts awarded since 2021
- 162021
- 152022
- 192023
- 152024
- 112025
- 242026 so far
Prices
Half of sustainable building design contracts are worth less than £52k
CouncilsCentral governmentHousingEducation
The 10 biggest sustainable building design contracts
- Department for Energy Security and Net Zero (DESNZ)City Science Corporation Limited · 23 Apr 2025
- PeabodyBeyond CArbon · 29 Apr 2025
- National GalleryBuilding Design Partnership (BDP) · 30 Jul 2026
- Llywodraeth Cymru / Welsh GovernmentDown to Earth Project · 24 Mar 2026
- City of London CorporationArcadis · 30 Sep 2025
- Clarion Housing GroupWallace Whittle Limited · 5 Aug 2026
- The Highland CouncilZE Passivhaus Services Ltd · 14 May 2026
- City of London CorporationElliott Wood Partnership Ltd · 31 Jul 2026
- The Highland CouncilARMILA Sustainability Services · 22 Apr 2026
- City of London CorporationArcadis · 27 Jun 2025
Renewing contracts
1 sustainable building design contract comes up for renewal in the next 12 months
1 in the next 6 months. Most sustainable building design work is one-off: 7% of the contracts ending are recurring terms that get re-let. The 1 ending soonest is shown in full.
Where and when
London awards the most sustainable building design contracts. April and July are the busiest months.
Contracts by region and by month awarded. Click a region to filter the page.
FewerMore contracts
The regions as a table
| Region | Open now | Contracts | Value | Typical contract | Won the most | Bought the most | Renewing in 12 months |
|---|---|---|---|---|---|---|---|
| London | 0 | 9 | £841k | £109k | Arcadis and Wallace Whittle Limited (2 each) | City of London Corporation (4) | 0 |
| South East | 0 | 7 | £242k | £39k | XCO2 (2) | Oxford City Council (3) | 0 |
| Scotland | 0 | 5 | £314k | £70k | ARMILA Sustainability Services and ZE Passivhaus Services Ltd (2 each) | The Highland Council (4) | 0 |
| East of England | 0 | 3 | £63k | – | – | – | 0 |
| South West | 0 | 3 | £52k | – | – | – | 0 |
| North West | 0 | 2 | £95k | – | – | Greater Manchester Combined Authority (2) | 0 |
| West Midlands | 0 | 2 | £29k | – | ZE Passivhaus Services Ltd (2) | Sandwell Metropolitan Borough Council (2) | 0 |
| Yorkshire and the Humber | 0 | 1 | £15k | – | – | – | 0 |
| Wales | 0 | 1 | £127k | – | – | – | 0 |
| North East | 0 | 0 | Not published | – | – | – | 0 |
| East Midlands | 0 | 0 | Not published | – | – | – | 0 |
| Northern Ireland | 0 | 0 | Not published | – | – | – | 0 |
Often bought with sustainable building design
Related services
Key findings
- £100k a month
of sustainable building design contracts awarded.
Typical contract £52k x 2 contracts a month, last 12 months. - 1.5
sustainable building design contracts are awarded in a typical month.
35 contracts in the last 2 years. - 1
sustainable building design contract comes up for renewal in the next 6 months.
Recurring contracts with a named supplier and a published end date before 5 May 2027. - 8
frameworks and DPSs are running for sustainable building design work.
2 open to join now. - 61%
of sustainable building design contracts are won by SMEs.
As recorded by the buyer, on 33 award notices.
How many sustainable building design tenders and contracts are there?
| Last 12 months | Since November 2021 | |
|---|---|---|
| Notices published | 83 | 258 |
| Contracts awarded | 25 | 90 |
19 sustainable building design contracts and frameworks end in the next 12 months, 3 of them recurring services. In the last two years, 23 buyers awarded sustainable building design contracts to 25 suppliers.
Source: Find a Tender, Contracts Finder, Public Contracts Scotland, Sell2Wales and eTendersNI, to 4 November 2026. By Seamus White. How we count
Questions
How many sustainable building design contracts does the UK public sector award?
35 in the 2 years to 4 November 2026, from 23 public buyers.
How long are sustainable building design tenders open for?
The median sustainable building design tender is open for 32 days from publication to deadline.
How much is a typical public sector sustainable building design contract worth?
The median is £52k, and 97% are worth less than £250k.
Who wins the most public sector sustainable building design contracts?
ZE Passivhaus Services Ltd won the most (4). City Science Corporation Limited won the most by value (£807k).
Which buyers award the most sustainable building design contracts?
Councils award 66% of them.
Which part of the UK awards the most sustainable building design contracts?
London: 9 of 35 in the 2 years to 4 November 2026, then the South East (7) and Scotland (5).
How many sustainable building design contracts come up for renewal in the next 12 months?
1 contract ends and is likely to be re-let, the first on 13 April 2027. Another 14 ending are one-off work.
Are there frameworks or DPSs for sustainable building design work that are open to join?
8 frameworks and DPSs for sustainable building design work are running. 2 are open to join now.
What is included
Advice and assessments that make building projects meet zero carbon and energy standards: net zero building standards, energy performance modelling and compliance testing.
- Net zero carbon building standard review and testing
- SBEM and dynamic simulation modelling
- Air tightness testing and certification
- Zero carbon and sustainable built environment advice
What is not included
- Existing-estate decarbonisation plans (see Energy audits and building decarbonisation plans)
- EPCs (see Energy performance certificates)
- Building services design (see Building services engineering)