Caswydawnictwo

CAS Wydawnictwo (CAS Sp. z o.o., Warsaw — KRS 0000659441, NIP 527-279-47-55) — The Polish construction cost-index family used for contract indexation, sold as a subscription platform rather than as books. Components: KCOB (price catalogue for building objects), KCOE (energy objects), KCOD (roads), KCOK/KCOT (railway), KCOSZ/KCOZT (external networks and site development), plus the index/calculator layer — KWZC (Catalogue of Price Change Indices, valuation and projection), KWKZ, KWZ, KWO (reproduction value) and KKRI (investment realisation cost). The distinctive property is cadence and horizon…

Caswydawnictwo offers (Alternative, Fundamental, Reference) — Not published as record counts; the series dimensions are the volume. Composition: five-plus object price catalogues (building, energy, road, railway, external networks/site development) each with its own index family, plus KWZC quarterly index-and-projection releases (current vintage Q3 2026, projected to 2029), weekly valuation updates for the KCOB/KCOE/KCOD families, and a calculator repository covering every catalogue (KCOB, KCOE, KCOD, KCOK, KCOSZ, KCOZT, KWZC, KWKZ, KWZ, KWO, KKRI). Bundled CASPACK packages exist for specific professions (budget units, property assessors), implying enough content to support segmented subscriptions..

Contract indexation and valuation claims under Polish public-procurement contracts — waloryzacja clauses are settled against published indices, so this is a compliance-embedded dataset with recurring legal demand rather than discretionary analytics. Also: construction cost escalation measurement for Poland at object-class resolution (a genuinely useful input-cost inflation series for investors in listed Polish and CEE builders and cement producers, ahead of official statistics because of the weekly cadence); tender estimating and budget validation for contractors and investors; asset valuation and insurance reinstatement via the reproduction-value calculators; investment appraisal via KKRI; forward capital planning off the 2029 projections; and Polish-language tabular/numeric reasoning datasets for construction-domain agents, where the calculator logic itself is training material.