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Conservation of the Southwest Wall Section of Karksi Castle

Closed

Updated October 08, 2026

Submission Deadline Has Passed

This tender's submission deadline has passed and is no longer accepting applications. The information below is kept for reference purposes.

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Deadline
Expired
March 30, 2026
Contract Details
Category
Construction
Reference
307358
Value
€43,000
Location
Estonia
Published
March 11, 2026
Organization
CPV Code
Evaluation Criteria
Bid price100%
Project Timeline

Tender Published

March 11, 2026

Deadline for Questions

March 23, 2026

Submission Deadline

March 30, 2026

Tender Opening

March 30, 2026

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Key facts

Estimated value
€43,000
Deadline
Expired
CPV Code
45212350-4 — Buildings of particular historical or architectural interest
Procedure
Simplified procedure
Budget
€43,000
Duration
4 months
Location
Estonia
Type
Construction
75
Quality Score/100
Good
Market Benchmark
Avg. Winning Price
€524,963
Avg. Bids
4.7
Competition
Medium
SME Winners
94%
5,932 tenders analyzed

Original Tender Description

This procurement seeks price offers for the conservation work of the southwest wall section of Karksi Castle within the scope indicated on the site plan (Appendix 2) (required work: cleaning both sides of the wall base to a depth of approximately 30 cm for approximately 25 meters. Cleaning stones and joints, filling joints, and stabilizing stones on both sides of the wall). The restoration should be guided by this terms of reference and the principles of the action plan "Action Plan for the Conservation of the Ruins of the Outer Ward of Karksi Castle (Southeast and Northwest Wall Sections from the Main Gate)" prepared by OÜ Maakivist on February 1, 2022 (Appendix 1).
Electronic Submission

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Win Strategy

AI-powered analysis of this tender's requirements, opportunities, and challenges. Get strategic insights to maximize your win probability.

65%
Estimated Win ProbabilityModerate Fit

This tender for Karksi Castle wall conservation is heavily price-driven, requiring a highly competitive bid. Success hinges on demonstrating technical expertise aligned with heritage conservation principles and efficient cost management. While social and green procurement are absent, a focus on quality and adherence to the provided action plan will be crucial.

Key Winning Messages

Cost-effective Heritage Preservation: Delivering high-quality conservation services at the most competitive price, adhering strictly to the established action plan and legal requirements.

Expertise in Historical Masonry: Demonstrating proven capability in the specific techniques required for cleaning, grouting, and stabilizing ancient stone structures.

Reliable and Compliant Execution: Ensuring all work is performed in full accordance with the Cultural Heritage Act and the contracting authority's detailed specifications.

Key Opportunities
Leverage the 100% price-based evaluation to secure the contract by submitting the lowest viable bid.
Deeply understand and integrate the methodology from the 'Karksi linnuse konserveerimise tegevuskava' (Document 2) to demonstrate technical alignment and potentially optimize material usage.
Focus on efficient project management and resource allocation to minimize costs without compromising quality, given the tight budget and short duration.
Key Challenges
Intense price competition due to 100% price-based evaluation, risking bids being too low to be profitable or too high to win.

Conduct thorough cost analysis, benchmark against similar projects, and identify all potential cost efficiencies in labor, materials, and equipment. Consider a 'lean' operational approach. Aim for the lowest possible price that still allows for a small but acceptable profit margin.

Ensuring strict adherence to the specific, detailed conservation methodology outlined in the action plan and terms of reference, which requires specialized knowledge.

Thoroughly review and understand Document 2 ('Karksi linnuse konserveerimise tegevuskava') and Document 4 ('Lähteülesanne'). If necessary, consult with heritage conservation specialists to ensure full comprehension and compliance. Clearly articulate how the proposed methodology will be implemented in the bid.

Potential for unexpected site conditions or material requirements not fully detailed, which could increase costs.

Include a small contingency in the bid price for unforeseen issues. Clearly state assumptions made regarding site conditions and material availability in the bid proposal. Emphasize the contractor's experience in dealing with such challenges.

Ideal Bidder Profile
A small to medium-sized construction or heritage conservation company with proven experience in masonry restoration, specifically on historical structures. They should possess a skilled workforce capable of meticulous cleaning, grouting, and stabilization, and a strong understanding of Estonian Cultural Heritage Act requirements. The ideal bidder will have a lean operational structure allowing for competitive pricing.
Key Requirements
Compliance with the provided action plan 'Karksi ordulinnuse eeslinnuse varemete (peaväravast kagu- ja loodepoolsete müürilõikude) konserveerimise tegevuskava' (Lisa 1).
Adherence to the scope of work: cleaning (approx. 30 cm depth, 25m length), stone and joint cleaning, repointing, and stone stabilization on both sides of the wall section.
Compliance with the Cultural Heritage Act.
Submission of a bid price that is highly competitive, as it carries 100% of the evaluation weight.
Confirmation of compliance with mandatory exclusion grounds and eligibility requirements.
Background checks for subcontractors regarding criminal offenses and human trafficking.
Key Discriminators
A highly detailed and cost-optimized work plan that explicitly references and integrates the provided action plan (Lisa 1) and terms of reference (Lähteülesanne), demonstrating a deep understanding of the specific conservation requirements.
Demonstrated experience with similar historical masonry conservation projects in Estonia, backed by references or case studies.
A clear and efficient project management approach that assures timely completion within the 4-month duration, highlighting how cost savings are achieved without compromising quality.
Social Value Opportunities
While not a formal requirement, consider mentioning a commitment to using local suppliers for materials where feasible, contributing to the local economy. This can be a subtle differentiator if competitors do not.
Highlight any training or skill development opportunities provided to the workforce during the project, even if informal.
Bid Focus Areas
Bid price100.0%

Submit the lowest possible price that is still financially viable. Conduct a rigorous cost breakdown to identify all areas for efficiency. Benchmark against similar projects to ensure competitiveness. Aim to be the lowest bidder by a small but significant margin.

Recommendations6
Aggressively Price the Bid
CriticalHigh effort

Given the 100% price evaluation, the primary focus must be on submitting the absolute lowest viable bid. This requires meticulous cost estimation, identifying all potential efficiencies in labor, materials, and equipment, and potentially accepting a lower profit margin than usual.

Directly maximizes score for the sole evaluation criterion, significantly increasing win probability.
Master the Action Plan and Terms of Reference
CriticalHigh effort

Thoroughly analyze Document 2 (Action Plan) and Document 4 (Terms of Reference). Ensure the bid proposal explicitly demonstrates how the proposed methodology aligns with and implements the principles and requirements outlined, especially regarding cleaning depth, materials, and stabilization techniques.

Ensures compliance, avoids technical disqualification, and demonstrates competence to the contracting authority.
Highlight Proven Heritage Conservation Experience
HighMed effort

If possible, include brief case studies or references of similar historical masonry conservation projects. Emphasize the team's expertise in working with heritage sites and adhering to relevant legislation (Cultural Heritage Act).

Builds confidence in the bidder's capability and technical proficiency, subtly differentiating from less experienced competitors.
Scrutinize Subcontractor Compliance
HighMed effort

Carefully vet all potential subcontractors to ensure they have no relevant criminal convictions. Prepare clear documentation and explanations for any necessary subcontractor background checks as required by the tender.

Prevents potential disqualification due to subcontractor issues.
Incorporate a Small Contingency
MediumLow effort

While aiming for the lowest price, include a small, justifiable contingency in the cost breakdown for unforeseen site conditions or minor material variations. Clearly state any assumptions made about site conditions.

Protects profitability and project execution from minor unexpected issues.
Subtly Mention Local Sourcing
LowLow effort

If feasible and cost-effective, mention in the bid proposal a preference for sourcing materials from local suppliers, framing it as a contribution to the local economy.

May offer a minor positive perception without impacting price significantly.
Competitive Positioning
Position as the most cost-effective provider of high-quality heritage conservation services, directly addressing the 100% price evaluation. Emphasize efficiency and lean operations to justify the low price.
Highlight specialized expertise in historical masonry and a deep understanding of the specific conservation techniques required by the Karksi Castle site, as detailed in the provided action plan.

Competitors

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Requirements & Qualifications

13 requirements across 5 categories

Submission (3)
Mandatory (1)
Compliance (2)
Technical (5)
Financial (2)
SUBMISSION REQUIREMENTS3
--The deadline for submission is 2026-03-30 09:00:00.
--The duration of the contract is 4 months.
--The contracting authority will check the background of subcontractors regarding criminal offenses and human trafficking, requiring relevant explanations and evidence.
MANDATORY EXCLUSION GROUNDS1
--The contracting authority may exclude economic operators who have been convicted of criminal offenses related to criminal organizations or trafficking in human beings.
ELIGIBILITY REQUIREMENTS2
--Bidders must confirm compliance with the requirements set out in the tender documents.
--Bidders must confirm compliance regarding joint bids and equivalence.
TECHNICAL CAPABILITY REQUIREMENTS5
--The tender concerns the conservation of the southwestern section of the Karksi Castle wall.
--Technical requirements include cleaning, grouting, and stabilization of the wall section.
--Work must comply with the Cultural Heritage Act.
FINANCIAL REQUIREMENTS2
--The estimated value of the tender is 43,000.0 EUR.
--The tender will be evaluated based on cost, with the lowest price receiving maximum points.

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Documents

8 documents available with AI summaries

Alltöövõtjate kontrollimise tingimused lepingu täitmise etapisPDF
307358_alltoovotjate_kontrollimise_tingimused... -- 20.7 KB

The contracting authority will vet subcontractors for criminal offenses and human trafficking, requiring relevant explanations and evidence.

VastavustingimusedPDF
307358_vastavustingimused.pdf -- 4.5 KB

This document outlines conditions where the bidder must confirm adherence to requirements stated in the tender documents, including joint bids and equivalency.

Hindamiskriteeriumid ja hinnatavad näitajadPDF
307358_hindamiskriteeriumid.pdf -- 2.8 KB

The tender evaluates the bid price, where the lowest price receives the maximum points.

Hankepass täiendatavate selgitustegaPDF
307358_hankepass_taiendavate_selgitustega.pdf -- 37.9 KB

The tender pass is an initial self-declaration by the contractor, containing the conditions set by the contracting authority and the format of expected responses, but is not intended for completion itself.

LähteülesanneDOC
Lähteülesanne_Ordulinnuse müürid.docx -- 48.0 KB

This terms of reference outlines the technical requirements for the conservation of the southwestern section of Karksi Castle's wall, including cleaning, repointing, and stabilization, and requires bidders to comply with the Cultural Heritage Act.

Karksi linnuse konserveerimise tegevuskavaPDF
Lisa 1 Karksi-linnuse-konserveerimise-tegevus... -- 1.4 MB

This action plan outlines the methodology for the conservation of Karksi order castle wall sections, including historical background and descriptions of previous works.

Restaureeritava müüri asendiplaanIMG
Lisa 2 Restaureeritava müüri asendiplaan Kark... -- 2.3 MB

No summary available for this document.

Karksi ordulinnuse makumuse esildisXLS
Lisa_3_Karksi ordulinnus_müürid_maksumuse esi... -- 12.4 KB

The tender document outlines the scope and details of the conservation work for the southwestern section of the Karksi Castle walls, including preparatory work, cleaning, material costs, and conservation activities.

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75
Good

Tender Quality Score

This tender for the conservation of the Karksi Castle wall section is generally well-structured, with clear technical specifications and a straightforward evaluation criterion. However, it lacks explicit sustainability considerations and relies on a manual submission process for some documents.

Score Breakdown

Legal Compliance75/100

The tender appears to comply with general legal requirements, including a clear procedure and proper CPV code. Deadlines are reasonable. No disputes are noted. The procedure type (LM) suggests a negotiated procedure, which is permissible.

Clarity80/100

The description of the conservation work is detailed, and technical requirements are outlined in the 'Lähteülesanne' and 'Karksi ordulinnuse makumuse esildis' documents. The evaluation criteria are clearly stated as price-based.

Completeness70/100

Most basic information is present, including estimated value, duration, and deadlines. However, the absence of a direct URL for all tender documents and the reliance on manual submission for some files (e.g., .png, .xml) could be improved.

Fairness85/100

The tender is fair, with full document access and disclosed value. The evaluation criterion is objective (lowest price). The use of e-procurement is noted, but the submission process for certain documents might not be fully electronic.

Practicality65/100

While electronic submission is mentioned, the presence of non-analyzable file formats (.png, .xml) suggests that not all aspects of the submission might be fully electronic. The contract start date is not explicitly stated, and financing information is absent.

•Contract start date not specified
•Financing information not provided
Data Consistency90/100

Key fields such as title, reference, organization, value, and dates are populated. There are no noted suspensions or disputes, and the dates are logically sequenced.

Sustainability50/100

The tender does not explicitly mention green procurement, social aspects, or innovation. It is not indicated as EU-funded, which limits the potential for integrated sustainability measures.

•No explicit green procurement criteria
•No explicit social criteria

Strengths

Clear technical specifications and scope of work
Objective evaluation criterion (lowest price)
Proper CPV code and classification
Reasonable deadlines and disclosed value

Concerns

Lack of explicit sustainability considerations
Potential for non-fully electronic document submission
Missing contract start date and financing information

Recommendations

1. Incorporate specific sustainability criteria (e.g., use of eco-friendly materials, waste management plan).
2. Ensure all tender documents are accessible and submittable through the e-procurement platform.
3. Provide the contract start date and details on financing.

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