The aircraft was developed for a contest for a successor of Junkers F-13 in LOT Polish Airlines.

The first design of 1929, named PWS-21, developed by Stanisław Cywiński and Jarosław Naleszkiewicz, was a braced high-wing plane, but it was not realized because LOT demanded bigger passenger cab.

However, at that time there was its development, PWS-24 built, sharing the same lightweight wing, which was ordered by LOT.

High-wing cantilever monoplane of mixed construction, with closed cab and single engine.

Straight one-piece wooden wing, with elliptical endings, plywood covered, two-spar.