Scope
Reference
PRJ_30629
Description
Westminster City Council Authority is seeking to procure a Main Contractor for the 291 Harrow Road development. The Project will deliver 144 new homes in the centre of London. A total of 48 will be affordable homes, 24 will be Adult Social Care units at social rent and 72 homes will be available for private sale.
The Project will comprise three buildings at 15, 10 and five storeys in height and will aim for an ambitious carbon reduction through a passive design, a fabric first approach and the use of air source heat pumps and solar panels to maximise the use of renewable energy. The Authority's aim is for the Project to achieve a 70% sitewide reduction over the baseline for the proposed development, far exceeding Greater London Authority's target of 35%.
Total value (estimated)
- £80,000,000 excluding VAT
- £80,000,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 2 March 2026 to 12 July 2030
- 4 years, 4 months, 11 days
Main procurement category
Works
CPV classifications
- 45211100 - Construction work for houses
Participation
Legal and financial capacity conditions of participation
- Suppliers must not be on the Debarment List
- Suppliers must have no unmitigated conflicts of interest
- Suppliers or their guarantors must demonstrate a mean average turnover of at least £250 million over the last two years
- Suppliers or their guarantors must have a Current Ratio of at least 1.0 calculated from the most recent financial accounts
- Suppliers must hold or be willing to hold Employer's Liability, Public Liability and Professional Indemnity Insurance of at least £20 million
- Suppliers must be willing to provide a parent company or performance bond to the value of 10% of the construction value
- Suppliers must have had no modern slavery, health and safety or environmental incidents in the last three years or must demonstrate policies and processes put in place as a result of such incidents
Technical ability conditions of participation
Technical ability: Three experience statements weighted 15% each (45%)
Technical ability: Building Safety Act approach weighted 15%
Technical ability: Design Development experience weighted 15%
Technical ability: Second stage cost certainty experience weighted 15%
Technical ability: Social value experience weighted 5%
Technical ability: Environmental sustainability examples weighted 5%
Submission
Enquiry deadline
26 September 2025, 12:00pm
Submission type
Requests to participate
Deadline for requests to participate
7 October 2025, 12:00pm
Submission address and any special instructions
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Suppliers to be invited to tender
Maximum 4 suppliers
Selection criteria:
Suppliers will be shortlisted based on the scores they achieve for their scored and weighted PSQ Response provided they submit a compliant PSQ response, pass all questions and are not otherwise disqualified or excluded.
The Authority intends to shortlist up to four Suppliers achieving the top scores, but reserves the right to shortlist less than four Suppliers where there is a clear distinction in scoring achieved between the leading Suppliers and the remaining Suppliers.
Award decision date (estimated)
4 February 2026
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Responsible Procurement | Social value - Beyond s106 requirements, will be evaluated using the Authority's Responsible Procurement Social Value Model, which aligns with local and resident priorities. Suppliers must propose... |
Quality | 10% |
| Construction Methodology | Detailed approach for construction methodology. |
Quality | 9% |
| Design management | Effective design management, ensuring sustainability standards are met, considering the needs of specific customers, engaging with wider multidisciplinary team, ensuring seamless transition between... |
Quality | 7% |
| Quality and defect management, handover and aftercare | Quality management, handover and aftercare approach. |
Quality | 7% |
| Programme management and BSA process | Methodology around programme management, alongside an initial programme for pre-construction services and works. |
Quality | 6% |
| Supply chain | How Suppliers will ensure that the right supply chain partners are selected for this project |
Quality | 6% |
| Cost Certainty | Methodology for ensuring cost certainty without compromising quality |
Quality | 6% |
| PCSA Services fee | Cost | 6% | |
| Contractor's team resourcing | Information on the proposed team across the pre-construction and construction stages |
Quality | 5% |
| Design team resourcing | Information on the proposed design team, demonstrating the experience and the added value the team bring to the scheme |
Quality | 5% |
| Main construction stage preliminaries | Cost | 4.5% | |
| Overhead and profit margin | Cost | 4.5% | |
| Risk management | How risks will be managed on the project with clear ownership of the risks and response actions. |
Quality | 4% |
| Enabling works fixed cost | Cost | 4% | |
| Stage 4 design costs | Cost | 4% | |
| Construction risk rate | Cost | 4% | |
| Enabling works preliminaries | Cost | 3% | |
| Cost Plan | Commentary on the rates contained within the initial Cost Plan and where possible prices for items which are currently unpriced. Further, identified areas where value engineering could take place for... |
Quality | 2.5% |
| Environmental sustainability | As LETI standards already address core sustainability requirements, this additional question focuses on areas not fully covered. Suppliers will be expected to explain how they will deliver ecological... |
Quality | 2.5% |
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
Participation Stage - where Suppliers are required to submit a PSQ Response which the Authority
Tender Stage - where those Suppliers which are shortlisted following the conclusion of the Participation Stage will be invited to submit a Tender.
Negotiations - The Authority reserves the right to conduct a Negotiation Stage during the Tender Stage. Any negotiations will be on both technical and price elements and will be undertaken with all Suppliers shortlisted to the Tender Stage who are not rejected during the Tender Stage.
Documents
Documents to be provided after the tender notice
Further detailed designs will be shared with the shortlisted Suppliers. Draft contracts will be issued during the Participation Stage.
Contracting authority
Westminster City Council
- Public Procurement Organisation Number: PJVD-6261-BPPJ
64 Victoria Street
London
SW1E 6QP
United Kingdom
Region: UKI32 - Westminster
Organisation type: Public authority - sub-central government