The town developed to serve the industries of the Swanfels Valley: timber getting, sandstone quarrying, dairying, and mixed farming.

The township which is growing larger every year, has several stores, a couple of black-smith shops, a hall, ... and two boarding-houses.

By the following year a single storeyed timber building had been erected according to plans and specifications prepared by MP Henricksen on a small 19 perch block owned by the Warwick Hospital Committee.

The work costing £49.13.6 (including additions and the removal of the existing building further back on the site) was undertaken by contractor WP McDonald according to plans prepared by School of Arts caretaker C Berthelsen.

An overdraft of £130 was arranged to meet the cost of purchase and improvements undertaken immediately with several of the Brethren giving freely of their labour for some weeks.

[1] After the first World War, the Lodge began to expand again; one of the events of the district was the annual Yangan Masonic Ball.

A number of improvements were made to the Lodge Room at this time including the purchase of the altar, organ, tracing boards, and various other furnishings.

[1] During World War II the activities of the lodge were severely curtailed: blackout conditions were enforced, installation banquets and formal dress for meetings were abandoned, and nearly all Offices were held by Past Masters.

[1] The post World War II period saw a decline in Yangan's fortunes epitomised by the closure of the Warwick to Killarney railway on 1 May 1964.

By the late 1970s the Yangan Masonic Lodge was struggling to exist with rising costs, few candidates, and low attendances.

[1] The village of Yangan lies in the Swanfels Valley some 18 kilometres (11 mi) to the east of Warwick, on the banks of Swan Creek.

It sits on the high side of this street, on the south-western bank of Carey's Hill giving it commanding views over the valley.

Vehicular access to the site is from a secondary road running along the high side of King Street.

The panelled entry door to the Lodge Room has brass knockers to both sides and a sliding eye- hole.

[1] Yangan Masonic Hall was listed on the Queensland Heritage Register on 21 October 1992 having satisfied the following criteria.

Situated on the high northern side of Yangan's main street, the Yangan Masonic Hall with its long processional approach (giving rise to its title as the Temple with the Long Stairs) is a distinctive landmark and symbol of the former prosperity of the town in which only remnants of the main streetscape survive.

The Masonic Hall is in essence a simple timber vernacular public building, but its decorative frontal emphasis of the gabled entry porch, verandah clad in filigree screen, long timber stair, and ceremonial approach is (in common with the present School of Arts building (Yangan School of Arts)) a deliberate gesture to demonstrate the civic prominence of the building, and to formally address the town's main street.

Situated on the high northern side of Yangan's main street, the Yangan Masonic Hall with its long processional approach (giving rise to its title as the Temple with the Long Stairs) is a distinctive landmark and symbol of the former prosperity of the town in which only remnants of the main streetscape survive.