The first elements of the site began construction began in 1949, initially consisting of small test "cubicles" inside buildings like the Plant House. When the possibility of supersonic jets arose, the site was expanded to the north west; the Air House and several large test cells were built circa 1961.
The initial development of the site started in 1949, initially featuring small test compartments within buildings like the Plant House. As the possibility of supersonic aircraft became a reality, the site was expanded to the northwest, leading to the construction of the Air House and larger test facilities around 1961.