"symmetrical layout" is correct and usable in written English.
You can use it to describe the arrangement of elements in a design or space, such as a website, room, article, or report. For example, "Our website has a symmetrical layout with elements evenly spaced across the page."
Yet the building's symmetrical layout and monolithic scale invite other interpretations.
(It was built for a retired priest, probably one of the few people who could tolerate its rigidly symmetrical layout).
The symmetrical layout of the city to the east and west of this line is quite striking.
The first is an axially symmetrical layout to obtain high damping efficiency.
Eric Kokish, the official commentator, called the diagramed deal from Saturday's game ridiculous because of the symmetrical layout of the black suits.
Sometimes the scene is formal, as in "French Garden," with its symmetrical layout and stylized plantings; sometimes it hints at wilderness, inhabited by sprites and magical creatures.
During the Shang dynasty, from the 16th to 11th century B.C., the traditional plan for Chinese cities, which has lasted until very recently, evolved into a south-facing walled rectangle surrounding a grid of public buildings and courtyard houses with similar symmetrical layouts.
In the eighteenth century less formal and symmetrical layouts became common with the development of the jardin anglais.
Less symmetrical layouts became common with the development of the "natural" style of the jardin anglais, which attempted to create vistas of a rural idyll.
This configuration was chosen to maximise the use of the four available interface devices in a non-symmetrical layout.
Gibbons drew issue five, titled "Fearful Symmetry", so the first page mirrors the last (in terms of frame disposition), with the following pages mirroring each other before the center-spread is (broadly) symmetrical in layout.
