Most of the churches of the Żuławy region were built in the 2nd and 3rd quarter of the 14th century, and after 1400, less and less of them were erected. Within the peripheral walls and in the attics of numerous churches (among other things in Gnojewo, Mątowy Wielkie, Kończewice, Marynowy, Jeziernik, and Krzyżanowo), wooden structural elements have been preserved, evidencing the original timber-frame structure of many churches of Żuławy. In the next decades (usually in the 3rd quarter of the 14th century), these simple structures were covered with brick, and sometimes new walls were erected in their place, many a time significantly extending the church's body. The basic type of a church from the area of Żuławy is a single-nave building without a separated chancel, most often with a tower from the west, small sacristy from the north, and small porch from the south. This simple layout was sometimes enriched by the separation of a narrower chancel (e.g. Krzyżanowo) and adding one or two naves (Gnojewo, Kończewice, Mątowy Wielkie); the polygonal ending sections of a chancel can be found only in few churches (e.g. Tuja, Cedry Wielkie). In the body of a church from the area of Żuławy, wooden storeys of towers draw particular attention, often with an overhanging octagonal starling topped with a spiked tented roof (Jeziernik, Kończewice, Lisewo, Mątowy Wielkie), and decorative eastern gables, most often stepped. Vaulted interiors (apart from sacristies) are a rarity (the chancel in Trutnowy); flat beamed ceiling were commonly used. Sometimes, one can find also wooden barrel vaults.