The gas production operations were taken offline in 1928, but the property continued to be used by electric utilities for most of the 20th century.

The land drops slightly from that road, and trees planted along that side screen the site from passing traffic.

It is a cylindrical brick building in common bond 70 feet (21 m) in diameter with a conical slate roof.

It has no foundation but the 18-inch–thick (46 cm) walls continue to depth of 23 feet (7.0 m) below grade, where they are grounded in a clay stratus.

[1] The substation building is located 200 feet (61 m) to the south, close to that side and north of the only gate in the fence.

It is a two-story rectangular brick building, 75 by 35 feet (23 by 11 m), on an east-west axis with a cross-gabled roof.

[1] In the middle of the south side is a taller arched entrance with service door and the remains of a hoist.

Because of the proximity of the brook, the site was lower than the rest of the city, and therefore it would be easier to distribute the gas as it naturally tends to rise in pipes.

The new plant encased a brick retort, purifying house and two gas holders within the cylindrical buildings.

This increased its production efficiency and volume, and required the addition of more buildings — a boiler house, oil and coal storage and more gasholders.

The substation building remained in use, and the successor utilities also used the area as a storage and maintenance yard until Niagara Mohawk decided it was no longer needed even for those purposes.

The gasholder was originally slated for demolition but was eventually moved intact to its present location at the northwest corner of the site.