BidSonarBidSonar
ContractsGrantsOrganisationsSectors
BidSonarBidSonar·Built by Hypership
SourcesBrandPrivacyTermsCookies

BidSonar is an independent index of public-sector opportunities. We aggregate data from official sources and are not affiliated with any procurement body. Data is licensed under the Open Government Licence v3.0 and the EU TED reuse notice.

    ContractsExternal Works and Electrical System Upgrades for Dron, Isleden and Windsor Estates
    Closed contract

    External Works and Electrical System Upgrades for Dron, Isleden and Windsor Estates

    Contract value
    £2.6m
    Published 26 May 2026

    Market notice for external works and electrical infrastructure upgrades across three estates, with formal procurement details to follow separately.

    🇬🇧United Kingdom· EnglandPublished 26 May 2026· 5 months agoviaFind a Tender
    Contract value
    £2.6m
    Published 26 May 2026

    Decision brief

    4 fields
    • Contract value
      £2,600,000indicative
      Pounds sterling
    • Closing date
      Not published
      No closing date published
    • Sector
      Construction
      Browse related listings
    • Location
      🇬🇧United Kingdom
      England

    Lifecycle

    Closed

    No longer open. Published 5 months ago.

    26 May 2026
    Closed — no tender deadline was published

    Brief

    This opportunity involves external works and electrical infrastructure upgrades across three residential estates: Dron, Isleden, and Windsor. The scope includes improvements to external areas, civil engineering works, surface treatments, and replacement or upgrade of electrical systems and associated infrastructure. Works may be delivered sequentially or in parallel across multiple sites, with the detailed scope to be refined as the programme develops. This is a market awareness notice issued for transparency purposes only and does not constitute a formal call for competition. Any future procurement will be subject to separate publication and full compliance with the Procurement Act 2023. All details, including budget values, scope specifications, and timelines, are indicative and subject to change.

    Track record

    25 awards · 23 winners
    Open field

    No single supplier dominates the field.

    In construction, THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON has awarded 25 contracts to 23 suppliers.

    Who wins here
    1. Sykes & Son Limited2× · 8%
    2. Team Projects Limited2× · 8%
    3. Impero Facilities Ltd1× · 4%
    4. Falcon Structural Repairs Ltd1× · 4%
    5. Dendale Construction Limited1× · 4%
    6. LDT Contractors Ltd1× · 4%

    +17 more suppliers

    Across construction, the most active winners are HOLCIM UK LIMITED, TARMAC TRADING LIMITED, LINDUM GROUP LIMITED — the field to beat, or your route in as a partner.

    More from THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON

    4 listingsView all →
    OpenConstruction🇬🇧United Kingdom

    Barbican Renewal Programme - Interior Joinery, Doors and Fit-out Supply and Installation

    Supply and installation of specialist interior joinery, doors, partitions and finishes for the Barbican Centre renewal programme, including new work and heritage refurbishment across multiple building areas.

    £6,500,000indicativeTHE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON
    Published 10 Nov 2026
    AwardedProfessional Services🇬🇧United Kingdom

    Library Building Replacement Project - Old Ladder Location

    City Surveyors seek qualified suppliers and contractors for the complete replacement of the Old Ladder Library building.

    THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON
    Published 6 Nov 2026
    AwardedFacilities Management🇬🇧United Kingdom

    Replacement Carpet Tiles Supply and Delivery for Libraries

    Supply and deliver replacement carpet tiles to three Barbican library locations including children's, main, and music libraries.

    £70,600THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON
    Published 6 Nov 2026
    OpenIT & Software🇬🇧United Kingdom

    Electoral Management Software for the City of London

    The City of London Corporation seeks suppliers to provide modern Electoral Management Software that supports its unique electoral system and specialist requirements while accommodating standard functions and upcoming legislative changes.

    THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON
    Published 6 Nov 2026

    Open in Construction

    4 open listingsView all →
    Construction🇬🇧United Kingdom

    Barrington House Refurbishment Contract

    Worcester City Council seeks an experienced contractor for a 12-week refurbishment of Barrington House, with mandatory site visit attendance required before tender submission.

    est.£300,000WORCESTER CITY COUNCIL
    Published 11 Nov 2026
    OpenConstruction🇬🇧United Kingdom

    Design and Build Contractor for Earls Hall Primary School Resource Base

    Southend-on-Sea City Council seeks contractors to design and build a specialist resource base for pupils with EHCPs at Earls Hall Primary School.

    Southend-on-Sea City Council
    Published 11 Nov 2026
    OpenConstruction🇬🇧United Kingdom

    Reverse Osmosis Water Purification Units Supply

    National Oceanography Centre seeks suppliers of reverse osmosis units and water purification equipment for research and operational use.

    NATIONAL OCEANOGRAPHY CENTRE
    Published 11 Nov 2026
    OpenConstruction🇬🇧United Kingdom

    Integrated Supply Team for St Conor's College New Build Project in Kilrea

    Integrated supply team sought to deliver new 730-pupil post-primary school with enabling works and demolition at St Conor's College in Kilrea.

    £42,000,000indicativethe Education Authority
    Published 11 Nov 2026
    Take action
    View on sourceFind a Tender

    Original closed notice on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    find-tender.service.gov.uk
    Record ID
    ocds-h6vhtk-06a37f

    Track

    Find out who wins

    Sonar emails you the day this is awarded or cancelled.

    Tell me who wins

    Free · No card

    Your fit

    Could you win the next one?

    This one has closed. Sonar reads THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON's work like this against your business and sends the next one that fits, every Monday.

    Check my fit

    Free · Matches every Monday

    MC
    Buyer
    THE MAYOR AND COMMONALTY AND CITIZENS OF THE CITY OF LONDON
    Sector
    Construction