--- title: "PASSIVHAUS DEVELOPMENT - 305-307 TWYFORD AVENUE, PORTSMOUTH 2025" ocid: "ocds-h6vhtk-055498" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-055498" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-055498.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-055498.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "PORTSMOUTH CITY COUNCIL" published: "2025-06-27" --- # PASSIVHAUS DEVELOPMENT - 305-307 TWYFORD AVENUE, PORTSMOUTH 2025 Buyer: PORTSMOUTH CITY COUNCIL Current stage: Tender OCID: ocds-h6vhtk-055498 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-055498) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-055498.json) ## Summary Portsmouth City Council is inviting tenders for a Passivhaus development project at 305-307 Twyford Avenue, Portsmouth, slated for 2025. The project involves constructing small-scale housing and includes design elements. The estimated contract value is between £1 - £1.5 million, with work set to begin in November 2025 and complete by Autumn 2026. The procurement is at the Tender stage, under an open competition method, following a two-stage selection process. Important dates include the deadline for initial submissions by 25 July 2025, with the contract award targeted by November 2025. The chosen principal contractor will need capabilities in direct work execution or established subcontracting, and the project will be governed by the JCT Intermediate Building Contract 2024. This tender represents a significant opportunity for construction businesses, particularly those experienced with Passivhaus standards and small-scale housing developments. Firms with expertise in managing projects with potential disruption and who have experience with JCT contracts will find this project particularly beneficial for growth. It's suited for companies capable of demonstrating financial capability, relevant experience, and robust health and safety standards. SMEs are encouraged to participate, given the suitable contract size and procurement conditions outlined by the council, offering a viable entry into public sector contracts for adept small to medium-sized contractors. ## Notice Portsmouth City Council ('the council') is inviting requests to participate from suitably qualified suppliers to deliver a Passivhaus small scale housing development at 305-307 Twyford Avenue, Portsmouth. The estimate contract value is PS1-1.5m and we expect work to commence on site in November 2025 and to complete in Autumn 2026. The Council are looking to appoint a principal contractor, with the ability to undertake the works directly or through established subcontracting arrangements. The contract is for construction and a design portion. Planning has been secured under references 24/01001/FUL. The Council has decided to use a two-stage process to procure the stated requirements; specifically: * a discrete Conditions of Participation stage to establish a shortlist of up to 6 suppliers * shortlisted suppliers will subsequently be invited to tender for the works. The successful suppliers will be appointed using a JCT Intermediate Building Contract 2024 with Contractors Design Portion. The Council is targeting to have awarded this contract by November 2025. This procurement timetable is indicative and, while the council does not intend to depart from it, it reserves the right to do so at any time. Publish below threshold contract notice on FTS - Friday 27th June 2025 1st Stage - Conditions of Participation (CoP) published on Intend - Friday 27th June 2025 Deadline for requests for clarification - Wednesday 16th June 2025 at 16:00 Stage 1 submission deadline - Friday 25th July 2025 at 12:00 Notification of CoP evaluation results - Friday 8th August 2025 Stage 2 Final procurement documents published on Intend - Monday 18th August 2025 Site Visits TBC Deadline for requests for clarification - Wednesday 17th September 2025 at 16:00 Stage 2 - Tender return deadline - Friday 26th September 2025 at 12:00 Notification of preferred bidder - Thursday 23rd October 2025 Standstill period (Voluntary) - Friday 24th October 2025 to Tuesday 4th November 2025 Contract award - Wednesday 5th November 2025 Mobilisation - 4 weeks Start onsite - Monday 8th December 2025 Complete onsite - Friday 4th December 2026 ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/035576-2025 | | Notice type | UK4 - Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Open | | Procurement method details | Below threshold - open competition | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 27 Jun 2025 | | Submission deadline | 25 Jul 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 5 Nov 2025 - 4 Dec 2026 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £1,500,000 | | Lots value | £1,500,000 | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Active | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | PORTSMOUTH CITY COUNCIL | | Locality | PORTSMOUTH | | Post town | Portsmouth | | Postcode | PO1 2AL | | Country | England | | ITL 1 | TLJ South East (England) | | ITL 2 | TLJ3 Hampshire and Isle of Wight | | ITL 3 | TLJ31 Portsmouth | | Local authority | Portsmouth | | Electoral ward | Charles Dickens | | Westminster constituency | Portsmouth South | | Delivery location | TLJ31 Portsmouth | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45000000 - Construction work ## Release History - 27 Jun 2025 at 07:42 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/035576-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/035576-2025 27th June 2025 - Tender notice on Find a Tender - https://in-tendhost.co.uk/portsmouthcc/aspx/home Add ## Notice URLs - https://www.legislation.gov.uk/ukpga/2023/54/contents - https://www.portsmouth.gov.uk ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-055498. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-055498.json.