Source: https://tendernation.io/opportunities/01a13bc6-529f-7230-acbc-50766f2edd4a/removal-of-existing-conservatory-associated-works-richmond-house-richmond-p closed GB open procedure Suitable for SMEs # Removal of Existing Conservatory & Associated Works - Richmond House, Richmond Park, Gainsborough [Gainsborough Town Council](https://tendernation.io/buyers/gainsborough-town-council) Estimated value Not stated Published 28 Oct 2025 Deadline Closed 25 Nov 2025 ## Who can bid - Open to suppliers based in the UK The buyer has limited bidding to suppliers with substantive operations in this area. [PPN 005: reserving by supplier location](https://www.gov.uk/government/publications/ppn-005-reserving-below-threshold-procurements/ppn-005-guide-to-reserving-below-threshold-html) - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Gainsborough Town Council invites tenders for the careful removal of an existing glazed conservatory and associated restoration works to the Grade II listed Richmond House, located within Richmond Park, Gainsborough. Works include demolition, masonry repair, joinery, sash window manufacture and installation, internal making good, decoration, and compliance with planning and heritage conditions. - Programme & Site Access - Contractor to supply a proposed programme of works for approval before commencement. - Access routes and site arrangements must be coordinated to avoid unnecessary disruption to site users and maintenance operations. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - Planning & Consent Conditions All works must be undertaken in accordance with the following approved drawings: - Ref: RD:5236 - 04 Rev A (June 2024) - Existing Site Plan - Ref: RD:5236 - 03 Rev C (June 2024) -Plan and Elevations - Ref: RD:5236 - 07 Rev B (June 2024) - Window Details for Reception and Office. - Ref: RD:5236 - 08 Rev B (June 2024) - Site Plan (Extension & Window Details Only). ### Condition 3 - Masonry Samples - No new masonry to be installed until brick and stone samples have been submitted to and approved by the Local Planning Authority (LPA). - Samples to include a test panel of brickwork (type, bond, mortar, finish) and proposed sills and heads. ### Condition 4 - Window & Joinery Drawings - Prior to installation, 1:20 scale drawings to be submitted for approval, showing materials, finishes, protective coatings, cross-sections, glazing details, and colour proposals. ### Condition 5 - Brickwork Cleaning - Method Statement to be submitted for approval before commencement of any brick cleaning, in compliance with BS 8221-1:2012. - Works must strictly follow the approved methodology. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - Description of Works 3.1 Demolition of Existing Extension - Carefully dismantle the glazed extension to prevent damage to the main structure and surrounding site. - All arising debris to be cleared and disposed of in accordance with regulations. 3.2 Removal of Base and Floor Construction - Break out the existing slab and base down to the level of adjoining paving. - Dispose of waste safely and responsibly. 3.3 External Wall Alterations - Remove render, plaster, and paint to walls affected by removal of structure. - Repoint brickwork with lime-based mortar. - Rebuild external wall sections as required, forming new window openings with matching lintels and sills. 3.4 Timber Sash Windows - Manufacture and install two new hardwood sliding sash windows to replicate the original appearance. - Include sash weights, ironmongery, and detailing in line with existing style. - All units to comply with approved drawings. 3.5 Internal Making Good - Repair disturbed walls, ceilings, and joinery to match existing finishes. - Apply lime plaster to walls and ceilings. - Use joinery-grade softwood for replacement or repairs. 3.6 Decoration & Finishes - Prepare and paint all new plasterwork and joinery. - Paint sash windows internally and externally. - Decorate affected doors and frames, with colour schemes approved in advance. 3.7 Site Management & Documentation - Provide temporary site facilities, security, and welfare as necessary. - Submit RAMS, Construction Phase Plan, and maintain a Health & Safety File in compliance with CDM. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - Quality & Standards - All works to be executed to a high standard of craftsmanship. - All materials must be new, high quality, and consistent with the historic character. - Works must comply with: o National heritage and listed building policies. o Relevant British Standards and current Building Regulations. o Health & Safety legislation. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - Completion & Handover - At practical completion, provide warranties, certification, and maintenance instructions. - Leave the site tidy and free from construction waste. Read full description ## CPV classification Demolition work Masonry and bricklaying work Installation of windows Painting work Restoration work Source Find a Tender (UK) · Notice ocds-h6vhtk-05d526-2025-10-28T12:24:27Z [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-05d526-2025-10-28T12:24:27Z) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Gainsborough Town Council: past awards and live tenders](https://tendernation.io/buyers/gainsborough-town-council) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Tender for the construction of NEW playpark at riverside walk, dromore · Fermanagh and Omagh District Council · 22 days left · 11 Nov 2026](https://tendernation.io/opportunities/01a15a0a-9d8a-726a-b85d-592434703f14/tender-for-the-construction-of-new-playpark-at-riverside-walk-dromore) [The Harlington Refurbishment And Remodelling · Fleet Town Council · 32 days left · 21 Nov 2026](https://tendernation.io/opportunities/01a15a0a-9edb-71f1-a0dd-a39cb05f9321/the-harlington-refurbishment-and-remodelling) [Boiler Replacement Scheme · West Yorkshire Fire and Rescue Authority · 59 days left · 18 Dec 2026](https://tendernation.io/opportunities/01a1599c-ca0f-7129-83ab-7f5da966bec5/boiler-replacement-scheme) [Building Repairs & Maintenance Lot 1 Electrical Lot 2 Mechanical · Derbyshire Dales District Council · 40 days left · 29 Nov 2026](https://tendernation.io/opportunities/01a15934-2662-73b5-8d63-abd6e1946ccd/building-repairs-maintenance-lot-1-electrical-lot-2-mechanical) [Repairs and Maintenance of Derbyshire Dales District Council Buildings, Lot 1 Electrical, Lot 2 Mechanical · Derbyshire Dales District Council · 41 days left · 30 Nov 2026](https://tendernation.io/opportunities/01a1599c-cc30-708e-a64f-c24f3506b98b/repairs-and-maintenance-of-derbyshire-dales-district-council-buildings-lot-1-el) [CA18585 - ITT Repair and replacement works to whole site drainage system · Diocese of Norwich Education and Academies Trust · 38 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a1594a-591e-7334-8085-35e92dcd67f8/ca18585-itt-repair-and-replacement-works-to-whole-site-drainage-system)