During the mid-18th century, the 'healing qualities' of the local spring waters attracted visitors to the area resulting in an economic boom with the building of a 'splendid' hotel at Llandrindod Hall.
A period of relative decline during the late 18th and early 19th centuries was reversed with the construction of the Heart of Wales line making Llandrindod accessible from south Wales, the Midlands and northwest England.
Enclosure of the common in 1862 enabled the expansion of the town with the construction of new streets, hotels, shops and houses.

During the 'season' between May and mid-September, visitors would take the waters at the pump rooms at the Rock Park and Pump House Hotel, entertained by orchestras.
Hotels, boarding houses and shops—including the Central Wales Emporium on the corner of Temple Street and Station Crescent—provided for the visitors.
In the early 1870s, an ornamental lake was formed by draining marshland near the Pump House Hotel (on the current site of the Council offices), and in 1893 a 9-hole golf course was opened on the common beside the lake (later replaced by the present 18-hole course on the hills above).
Horse races (and later air displays) were held on the Rock Ddole meadow beside the river.
 
In 1893 the archdeacon with responsibility for the area had Llandrindod old church and Cefnllys church unroofed in order to persuade the congregations to attend the new church in the centre of the town.
 In 1895 both churches were restored.

Llandrindod was the place of the election of the first Archbishop of Wales, which occurred at the Old Parish Church.
Elections for every Archbishop since have continued to be held in Llandrindod, now at Holy Trinity Church in the Town Centre.
In 1907, a Catholic church was founded in the town, Our Lady of Ransom and the Holy Souls Church.

The town has maintained an important profile in the world of motoring and motorsport.
Apart from two of its most symbolic recent buildings being the Tom Norton's Automobile Palace and Pritchard's Garage, it served as the base for many International motorcycle events such as the International Six Days Trial ISDT starting in 1933 with the last visit taking place in 1961, often drawing in crowds of thousands to watch.
The Welsh International Two Day Trial organised by locals is still a popular event as well as many rallies that rely on the infrastructure of Llandrindod's Hotels and public spaces.

The town's boom continued until the First World War during which time soldiers on training courses were billeted in hotels and boarding houses, and refugees and wounded soldiers were accommodated in the town.
The depression of the late-1920s and 1930s led to many hotels and boarding houses being turned into private homes and flats.
During the Second World War the town was again used for military hospitals and billets, followed by a slump in the post-war years.

The Beeching Axe resulted in the closure in the mid-1960s of the Mid-Wales line and with it Llandrindod's connection from nearby Builth Wells direct to Cardiff and to north and west Wales.
The town does retain connections to Swansea and Shrewsbury from Llandrindod railway station on the Heart of Wales line.
The A483 road is the main route through the town.

Prior to 1974, the town housed much of the administration of Radnorshire, although the official county town was Presteigne.
The reorganisation of local government in 1974 resulted in Llandrindod becoming the county town of the newly formed administrative county of Powys.
This led to an influx of people employed by the new bureaucracies, on salaries determined by national pay scales.
The new County Hall was based on Spa Road East in Llandrindod Wells.

In more recent years the economy has again flagged.
The town's carpet and stationery factories closed.
Many shops are either empty or occupied by charities.
An open-air market is held once a week in the High Street Car Park.
The town has larger business chains, including Tesco, Aldi, Spar, Greggs, Mica Hardware and a Post Office.

In a 2017 survey undertaken by Rightmove, Llandrindod w
During the mid-18th century, the 'healing qualities' of the local spring waters attracted visitors to the area resulting in an economic boom with the building of a 'splendid' hotel at Llandrindod Hall. A period of relative decline during the late 18th and early 19th centuries was reversed with the construction of the Heart of Wales line making Llandrindod accessible from south Wales, the Midlands and northwest England. Enclosure of the common in 1862 enabled the expansion of the town with the construction of new streets, hotels, shops and houses.
During the 'season' between May and mid-September, visitors would take the waters at the pump rooms at the Rock Park and Pump House Hotel, entertained by orchestras. Hotels, boarding houses and shops—including the Central Wales Emporium on the corner of Temple Street and Station Crescent—provided for the visitors. In the early 1870s, an ornamental lake was formed by draining marshland near the Pump House Hotel (on the current site of the Council offices), and in 1893 a 9-hole golf course was opened on the common beside the lake (later replaced by the present 18-hole course on the hills above). Horse races (and later air displays) were held on the Rock Ddole meadow beside the river.  
In 1893 the archdeacon with responsibility for the area had Llandrindod old church and Cefnllys church unroofed in order to persuade the congregations to attend the new church in the centre of the town.  In 1895 both churches were restored. 
Llandrindod was the place of the election of the first Archbishop of Wales, which occurred at the Old Parish Church. Elections for every Archbishop since have continued to be held in Llandrindod, now at Holy Trinity Church in the Town Centre. In 1907, a Catholic church was founded in the town, Our Lady of Ransom and the Holy Souls Church.
The town has maintained an important profile in the world of motoring and motorsport. Apart from two of its most symbolic recent buildings being the Tom Norton's Automobile Palace and Pritchard's Garage, it served as the base for many International motorcycle events such as the International Six Days Trial ISDT starting in 1933 with the last visit taking place in 1961, often drawing in crowds of thousands to watch. The Welsh International Two Day Trial organised by locals is still a popular event as well as many rallies that rely on the infrastructure of Llandrindod's Hotels and public spaces.
The town's boom continued until the First World War during which time soldiers on training courses were billeted in hotels and boarding houses, and refugees and wounded soldiers were accommodated in the town. The depression of the late-1920s and 1930s led to many hotels and boarding houses being turned into private homes and flats. During the Second World War the town was again used for military hospitals and billets, followed by a slump in the post-war years.
The Beeching Axe resulted in the closure in the mid-1960s of the Mid-Wales line and with it Llandrindod's connection from nearby Builth Wells direct to Cardiff and to north and west Wales. The town does retain connections to Swansea and Shrewsbury from Llandrindod railway station on the Heart of Wales line. The A483 road is the main route through the town.
Prior to 1974, the town housed much of the administration of Radnorshire, although the official county town was Presteigne. The reorganisation of local government in 1974 resulted in Llandrindod becoming the county town of the newly formed administrative county of Powys. This led to an influx of people employed by the new bureaucracies, on salaries determined by national pay scales. The new County Hall was based on Spa Road East in Llandrindod Wells.
In more recent years the economy has again flagged. The town's carpet and stationery factories closed. Many shops are either empty or occupied by charities. An open-air market is held once a week in the High Street Car Park. The town has larger business chains, including Tesco, Aldi, Spar, Greggs, Mica Hardware and a Post Office.
In a 2017 survey undertaken by Rightmove, Llandrindod w
Llandrindod Wells