

In
church architecture
Church architecture refers to the architecture of buildings of churches, convents, seminaries etc. It has evolved over the two thousand years of the Christian religion, partly by innovation and partly by borrowing other architectural styles as ...
, the chancel is the space around the
altar, including the
choir
A choir ( ; also known as a chorale or chorus) is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform. Choirs may perform music from the classical music repertoire, which s ...
and the
sanctuary (sometimes called the presbytery), at the
liturgical east end of a traditional Christian church building.
It may terminate in an
apse.
Overview
The chancel is generally the area used by the clergy and choir during worship, while the congregation is in the
nave. Direct access may be provided by a priest's door, usually on the south side of the church. This is one definition, sometimes called the "strict" one; in practice in churches where the eastern end contains other elements such as an
ambulatory and side chapels, these are also often counted as part of the chancel, especially when discussing architecture. In smaller churches, where the altar is backed by the outside east wall and there is no distinct choir, the chancel and sanctuary may be the same area. In churches with a
retroquire
In church architecture, a retroquire (also spelled retrochoir), or back-choir, is the space behind the high altar in a church or cathedral, which sometimes separates it from the end chapel. It may contain seats for the church choir.
An example of ...
area behind the altar, this may only be included in the broader definition of chancel.
In a cathedral or other large church, there may be a distinct choir area at the start of the chancel (looking from the nave), before reaching the sanctuary, and an
ambulatory may run beside and behind it. All these may be included in the chancel, at least in architectural terms (see above). In many churches, the altar has now been moved to the front of the chancel, in what was built as the choir area, or to the centre of the transept, somewhat confusing the distinction between chancel, choir and sanctuary. In churches wi