Immeubles urbains_Contrat-cadre_Travaux de toiture

✓Where applicable, social criteria are included, for example a 15 % bonus on the evaluation sum for offers submitted by recognized “Werkstätten für Behinderte”; if such an offer is equally economical as another, the contract is awarded to the workshop.

✓The documents also mention that products not from exploitative child labour may be considered in the procurement and that additional social aspects can be taken into account according to EU procurement law, though no explicit numerical weighting beyond price and the disability workshop bonus is shown in the excerpt.

✓Risks and special conditions for bidders are governed by VOB/B, the Besondere Vertragsbedingungen (614), LTTG and the participation conditions (612).

✓Security requirements include performance and defects guarantees for individual orders with net order value ≥ 250,000 €: 5 % of the order sum for performance and 3 % of the sum of progress payments for defects, to be provided by standard guarantee forms (Vertragserfüllungs‑ and Mängelansprüchebürgschaft; separate forms for Vorauszahlungsbürgschaft).

✓Subcontracting is allowed but tightly regulated: if not all works are done in-house, Form 233 must be used, names of subcontractors can be required at offer stage, and subcontractors must also meet PQ or suitability criteria and LTTG obligations; additional declarations from other companies (Form 236) and safety declarations for subcontractors (Form 126) can be demanded.

✓The binding period for offers runs until 17.12.2026; the offer deadline and opening date are 18.11.2026 at 09:15.

✓Communication is generally exclusively via the e‑tendering platform, and all communications (including Q&A) become part of the offer content.

✓No explicit mandatory site visit or question deadline beyond the general duty to promptly report ambiguities before submission is stated, but bidders must notify the contracting authority of perceived errors or gaps in the tender documents.

✓Such as: the Langfassung of the Leistungsverzeichnis is explicitly declared as the only binding version, with any GAEB data exchange files treated as working tools; in case of discrepancies, the written LV prevails.

✓The participation conditions make clear that only form‑ and time‑compliant offers using the prescribed forms are admissible; mixed calculations or non‑document‑secure entries lead to exclusion.

✓Where there appears to be a tension between general rules on Nebenangebote in the Teilnahmebedingungen and section 8 of the Aufforderung, the latter controls: in this specific procedure Nebenangebote are either explicitly “nicht zugelassen” or only allowed under the stated options in section 8. Finally, the Besondere Vertragsbedingungen (614) refine the general VOB/B regime (e.g. contract term, Höchstmenge clause, LTTG penalties, electronic communication); where they add or modify obligations compared to the standard conditions, the special conditions apply.