Foundation Chart

The foundation chart of San Miniato al Monte, cast for sunrise on May 28, 1207. The chart shows the planets Mercury, Venus, and Saturn as well as the sun and moon in the constellation Taurus. Reproduced by permission of Fortean Picture Library.

Foundation Chart

(religion, spiritualism, and occult)

A foundation chart is a horoscope calculated for the moment construction on a building is begun. Although such charts can be cast retrospectively, in traditional astrology they were part of electional astrology—the branch that deals with the most appropriate times to begin things.