Official UK procurement notice
Barbican Windows & Roof Repairs – Design Consultant
Authority: The Mayor and Commonalty and Citizens of the City of London (Local council)
What is being bought
Published requirement descriptionThe Barbican Estate was designed by architects Chamberlin, Powell and Bon and was constructed between 1965 and 1976 and consists of over 2000 flats in 21 Blocks. The predominant typologies of the Estate are Tower blocks, terraced blocks and Crescent. The construction of the blocks is predominantly concrete with hardwood windows. The estate was listed in 2001. All repairs must comply with the Barbican Listed Building Management Guidelines.
It is intended that the commission for a design consultant which will be split into two projects with the overall goal of ensuring that the properties are waterproof for twenty years following completion of the works. One project will be for window repairs across all top floor properties on the Estate undertaken in one phase, and the other will be roof renewals, drainage repairs / renewals / redesign and balcony waterproofing renewal works undertaken over 4 phases, anticipated to last 6 years. All roof coverings are at or close to the end of serviceable life. The current estimated construction cost of the works is £40m.
It is anticipated the consultant role will include but not be limited to:
- Carry out site surveys of all roofs, balconies, rainwater drainage and top floor windows.
- Produce material for any consultations with leaseholders about the projects. Attend consultations as necessary.
- Produce technical specification for works.
- Apply for all necessary statutory consents including Building Safety Regulator Approvals.
- Prepare contractual documentation for tender purposes.
- Act as Contract Administrator, Principal Designer and Building Regulations Principal Designer.
- Prepare pre-construction information pack for issue with tender documents.
- Review tender pack with ourselves and make any amendments as necessary.
- Answer any technical queries from contractors during tender process.
- Undertake tender analysis including price, technical, contractual assessments.
- Attend post tender meetings with contractors.
- Provide technical input in finalising of contract with chosen contractor.
- Attend all necessary meetings including pre-start and progress meetings.
- Review and comment on contractor drawings.
- Overview project through to completion and handover, allowing for sufficient attendance to accurately record any variations from the specification which will be necessary during the window repairs project.
- Witness testing on completion.
- Review and sign off O&Ms.
The PME questionnaire can be found on our Jaggaer portal
via the cityoflondon.ukp.app.jaggaer.com ↗
pqq_38
Please complete the PMEQ and submit via the portal (pqq_38) by the deadline of 29/01/26 14:00.
CPV: Architectural design services
The lotProcurement structure
single lot · no lot value publishedLot #1PlannedRenewal
Pipeline intelligence · planning stage: how this market runs before the tender is published
How The Mayor and Commonalty and Citizens of the City of London buys Architectural design services (CPV 7122), and who usually turns up
The Mayor and Commonalty and Citizens of the City of London’s own published record, next to the published market for the same work. Frameworks and DPS are kept out: they attract a different number of bids. Whole-market view: Architectural design services (CPV 7122) →
How the contest usually goes
Winner shares use published awards; bid and price charts use contested lots.
i
How often small and medium firms win.
Share of awards where the winner’s size is known.
The counts under this question show how many awards have a known supplier size.
Small firms have won here. Neither number says whether you qualify; it describes who has been winning.
i
How often local firms win similar work.
Winners with a registered address in the delivery region, out of awards with a known address.
Here, local means registered in Greater London.
A local branch does not count if the registered address is elsewhere.
Most of this buyer’s recorded winners are registered in Greater London.
i
How long buyers here take to decide after bids close.
Middle value in days from the deadline to the first award notice, on competitions that published both dates.
Only decided tenders count, so slow ones still waiting are not in.
Half of these awards were announced within 90 days of the bid deadline.
i
How often work is awarded with no recorded rival.
Direct awards and tenders where every published lot count shows one bid.
Both shares are minimums: some awards have no bid count.
Thin markets produce this too; it is not proof of a tailored specification.
Direct awards or one recorded bid are common here. Check the route before spending time on a bid.
How many bids did past lots attract?
i
How many bids past lots received.
Each colour is a bid-count range. Only competed lots with a published count are included.
Past bids do not predict this tender.
1 bid0% / 0%
2–328% / 9%
4–617% / 45%
7+56% / 45%
How did awards compare with estimates?
i
Where winning prices landed against estimates.
Each colour shows awards below, close to or above the published estimate, one lot at a time.
Past prices are a guide, not a bid price.
Below estimate94% / 40%
Within ±2%0% / 30%
Above estimate6% / 30%
Assess each lot i
What past awards tell you about each lot.
See the forecast, this buyer’s earlier suppliers and firms with relevant wins.
No supplier is confirmed as a bidder.
i
What past awards tell you about each lot.
See the forecast, this buyer’s earlier suppliers and firms with relevant wins.
No supplier is confirmed as a bidder.
Open a lot for its forecast, this buyer’s previous supplier and possible competitors, from published award history, not a bid list
Lot #1CPV 7122Published estimate£4.0m
i
How many bids this lot may attract.
The forecast uses similar past competitions. The bar shows either that forecast or past bid counts; the line below says which.
Each lot shows its own forecast based on its own category; forecasts for different lots of the same notice are not comparative. The bar shows 11 past lots.
A forecast, not a list of bidders.
1 bid0%
2–39%
4–645%
7+45%
i
Where the award price may land.
The forecast uses similar awards and the buyer’s estimate. The band covers the middle half of likely prices.
No comparable awards for this lot yet.
A statistical guide from past awards, not a price to bid.
Who has supplied this buyer on similar work? i
Who has done similar work for this buyer.
Past contracts are matched by buyer, title and type of work.
A past supplier may not bid again.
i
Who has done similar work for this buyer.
Past contracts are matched by buyer, title and type of work.
A past supplier may not bid again.
No earlier contract of this buyer matches this lot on the published record.
Who could compete for this lot? i
Who could compete for this lot?
Firms with relevant past wins. On a framework, we show firms on that agreement.
None is confirmed as a bidder.
i
Who could compete for this lot?
Firms with relevant past wins. On a framework, we show firms on that agreement.
None is confirmed as a bidder.
Candidate suppliers for this notice have not been worked out yet, so this is not a verdict that nobody fits.
About this data
- Source. Official UK public procurement notices (Find a Tender), reused under the Open Government Licence v3.0. New notices arrive through the day; the figures are rebuilt nightly.
- Two views, kept apart. The authority’s own track record and the wider market for the same kind of work sit side by side and are never mixed. Where the local picture is too thin, a figure widens to a broader market and says which one it used.
- Forecasts are labelled. The price forecast and its range, possible competitors and the earlier-work matches are our estimates from past awards: not published facts, not win chances and not price advice. Official notices do not say who is bidding.
- Every figure shows what it rests on. Not every notice publishes a bid count, a value or a delivery region, so each figure carries the number of records behind it, and one built on few records is marked as such. The on a figure explains it; the counting rules are in the methodology. Spotted something wrong? Tell us.
Procedure terms & legal framework
From the official record- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Services
- Notice status
- Planned procurement
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 15 Jan 2026, 10:11 GMT
- Last source update
- 15 Jan 2026, 10:11 GMT
- Authority reference
Prj_868 / pqq_38- FTS notice number
2026/S 000-003359- Latest notice
- Preliminary market engagement notice (UK2)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-060657Find a Tender
How it was run
Official notice- Submission deadline
- —
Timeline
15 Jan 2026 → 3 Aug 2026 · 4 dates- Planning notice published280 days ago15 Jan 2026, 10:11 GMT
- Market engagement265 days ago29 Jan 2026, 23:59 GMT
The PME is being conducted via the electronic tendering system ‘City of London Corporation Sourcing & Contracts Portal’ (url:www.cityoflondon.ukp.app.jaggaer.com ↗).
To access the PME documentation, please register on the system for free and search ‘Barbican Windows & Roof Repairs – Design Consultant'.
The PME documents can be accessed Prj_868 / pqq_38.
Organisations should submit their completed PME document via the system by the return deadline of TIME on DATE to participate.
PME document submissions cannot be uploaded after the return deadline.
- Tender notice expected212 days ago23 Mar 2026, 23:59 GMT
- Contract starts80 days ago3 Aug 2026, 00:00 BST
Notice history
1 event · 1 release on Find a Tender- Preliminary market engagement notice published15 Jan 2026, 10:11 GMTUK2
Commercial outcome & contract awards
Pipeline notice- Awards (0)
- No award published
- Contracts (0)
- No contract published
- Bid statistics
- No aggregate bid statistics published
Contracting authority & participating public bodies
Official documents & specifications (1)
Official links; attachments are not copiedNotices published for this procedure
- Preliminary market engagement notice Preliminary market engagement notice on Find a Tender