Estimated Value
Up to £583,333
Deadline
5 September 2025
Published
1 December 2025
Type
Not specified
Overview
The over-arching aim of this tender is to find a skilled, collaborative partner to provide licenses for a Whole Life Carbon Planning Review Platform. Westminster City Council (WCC) seeks a comprehensive digital platform for reviewing Whole Life Carbon Assessments (WLCA) related to planning applications.
The platform must provide licenses for a minimum of three years, allowing unlimited users from both applicants and WCC, with WCC retaining full data ownership. Key functionalities include the submission and review of WLCAs against RICS V2 and WCC's Retrofit First policies, with detailed compliance checks on material quantities, carbon factors (A1-A3), and inclusion of all life-cycle stages to assess upfront and whole life carbon (at pre-planning, Stage 1 Planning, Pre-commencement, and Post-Completion).
The platform must provide licenses for a minimum of three years, allowing unlimited users from both applicants and WCC, with WCC retaining full data ownership. Key functionalities include the submission and review of WLCAs against RICS V2 and WCC's Retrofit First policies, with detailed compliance checks on material quantities, carbon factors (A1-A3), and inclusion of all life-cycle stages to assess upfront and whole life carbon.
Eligibility & compliance
The selected provider must also deliver a user guides and a minimum of two in-person annual training sessions for WCC users, conducted by in-house trainers with specific Built Environment and Whole Life Carbon Assessment expertise.
Additional details
The platform must feature a visual review dashboard to easily highlight project details, carbon performance, and any non-compliance flags. Essential collaboration tools include version history management for multiple submissions (pre-planning through post-planning) and a commenting function for feedback between authorities and applicants.
It must also generate summary reports for committee use, detailing project information, input data, and comment logs between the planning officer and local authority. Crucially, the platform must be available 24/7 with out-of-hours maintenance and provide technical support during business hours.
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Award Details
Preoptima
£583,333
Likely incumbents
Suppliers who won similar work from this buyer in the last 5 years.
- 1
Sage Care Limited
5 contracts wonlatest 3 Feb 2026ends 13 Dec 2026£16m
total awarded
- 2
Health Vision UK Ltd
5 contracts wonlatest 15 Jan 2026ends 30 Nov 2026£23m
total awarded
- 3
London Care Limited
4 contracts wonlatest 24 Jun 2026ends 14 Dec 2026£14m
total awarded
- 4
Health Vision
4 contracts wonlatest 3 Feb 2026ends 13 Dec 2026£7m
total awarded
- 5
MARSTON (HOLDINGS) LIMITED (
£30m
total awarded
Sage Care Limited is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.
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two years of filed accountsyour financial standingturnover vs contract valueyour Companies House recordcash flow for 30-day termscredit scores and ratios
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Buyer Profile
Westminster City CouncilKey Dates
Published
1 December 2025
Submission deadline
5 September 2025
Notice type
award
Source
find a tender
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