Ä¢¹½´«Ã½

Ä¢¹½´«Ã½ Contract Leads

Scope

Reference

P814

Description

The City of Westminster (the "Authority") is seeking to appoint a suitably qualified and experienced specialist geotechnical consultant to undertake ground investigation works at Lilestone Street, forming part of the Lisson Grove Programme.

The appointed consultant will be required to carry out geotechnical and geo-environmental investigations to establish detailed information on ground conditions, groundwater levels, and associated constraints. The outputs of these investigations will inform the preparation of a Basement Impact Assessment (BIA) in support of a forthcoming planning application, and will provide a robust evidence base for structural design development, construction risk management, and cost certainty across the scheme.

This procurement will be conducted as a below-threshold open procedure. The opportunity will be advertised via the Authority's e-tendering portal (Jaggaer), and bids will be invited from suitably qualified suppliers with demonstrable experience in delivering comparable geotechnical investigation services.

The Authority will conduct this procurement in accordance with the principles of the Procurement Act 2023, ensuring that the process is transparent, proportionate, and facilitates fair and open competition.

As part of the tender process:

The tender period will be open for a minimum of 20 calendar days; and

Feedback will be provided to all participating bidders following contract award.

Total value (estimated)

• £140,000 excluding VAT
• £168,000 including VAT

Below the relevant threshold

Contract dates (estimated)

• 1 August 2026 to 30 September 2026
• 2 months

Main procurement category

Services

CPV classifications

• 71332000 - Geotechnical engineering services

Contract locations

• UKI32 - Westminster

Participation

Conditions of participation

Please refer to the ITT documents

Particular suitability

• Small and medium-sized enterprises (SME)
• Voluntary, community and social enterprises (VCSE)

Submission

Enquiry deadline

1 July 2026, 12:00pm

Tender submission deadline

6 July 2026, 12:00pm

Submission address and any special instructions

Tenders may be submitted electronically

Yes

Award criteria

Tender submissions will be evaluated across Qualification, Technical (Quality) and Commercial (Price) criteria. Qualification will be assessed on a pass/fail basis to confirm minimum standards (e.g. insurance, policies, exclusions, and relevant experience). The award will be made to the Most Advantageous Tender (MAT).

Quality (Technical) 50%

Price (Commercial) 50%

Responsible Procurement (within Quality)

Minimum 10% of overall score

Procedure

Procedure type

Below threshold - open competition

Contracting authority

Westminster City Council

• Public Procurement Organisation Number: PJVD-6261-BPPJ

64 Victoria Street

London

SW1E 6QP

United Kingdom

Contact name: Waleed Sajjid

Email: procurementteammailbox [at] westminster.gov.uk

Website: /

Region: UKI32 - Westminster

Organisation type: Public authority - sub-central government