IInns & shops · listed 1950Old Market HallPhoto: Peter Broster · CC BY 2.0
Old Market Hall · Photo: Peter Broster · CC BY 2.0A+History Grade
History of Llanidloes · Cadw
171 listed buildings, 1 of them Grade I
On the Cadw list, all of them stand inside Llanidloes’s built-up area, 778 for every 10,000 residents. Grade II covers 168 of Llanidloes’s listed buildings. 36% of its homes were built before 1919. We have photos of 3 of its listed buildings. Llanidloes grades A+ for history.
Listed buildings
171
778 per 10,000 residents
Grade I
1
exceptional interest
Grade II*
2
more than special interest
Scheduled monuments
0
nationally important sites
Homes built before 1919
36%
typical UK town 15%
In pictures
Landmarks of Llanidloes
Nearly every Grade I and II* building, photographed. Tap a photo to step through them full screen.
Photos from Wikimedia Commons and Geograph, copied to our own server, each credited to its photographer with its licence; names open the building’s page or its official list entry.
The map
Where Llanidloes’s history is
Every Grade I and II* building, monument and historic park.
Grade IGrade II*
Hover a dot for its name; tap one with a photo to open it.
171 listed buildings by grade
1 Grade I2 Grade II*168 Grade II
Cadw lists buildings of special architectural or historic interest in three grades: Grade I for buildings of exceptional interest, Grade II* for particularly important buildings of more than special interest, and Grade II for buildings of special interest. Listing protects the whole building, inside and out.
Every entry on Cadw’s register of listed buildings whose point lies inside the ONS 2022 built-up-area boundary. One list entry can cover a terrace or a group of buildings.
Grade I
The Grade I listed building in Llanidloes
Buildings of exceptional interest, about 1.6% of all listed buildings. Every one is photographed. Each opens its own page, with the official list entry.
Grade II*
The 2 Grade II* listed buildings in Llanidloes
Particularly important buildings of more than special interest. Every one is photographed.
II*Church · listed 1950St Idloes Parish ChurchOn the list as Parish Church of St IdloesPhoto: John Lord · CC BY-SA 2.0
II*Church · listed 1989Zion Congregational ChurchOn the list as Sion United Reformed ChurchPhoto: Dave Croker · CC BY-SA 2.0
Historic streets
Foundry Terrace has the most listed buildings
Streets by the listed entries with an address on them. One entry can be a whole terrace, so long rows count once.
Foundry Terrace17 listed
High Street13 listed
Great Oak Street10 listed
Highgate Terrace5 listed
Short Bridge Street5 listed
Smithfield Street5 listed
Bethel Street4 listed
China Street4 listed
New Street3 listed
Of the 171 entries, 72 are named by a street address; the rest are named buildings such as churches, halls and bridges.
What’s protected
Most of Llanidloes’s listed buildings are homes
Every listed building sorted by what its list name says it is.
Houses, terraces & villas86
Inns, shops & warehouses65
Churches, chapels & priories10
Public & civic buildings6
Street furniture3
Walls, gates & bridges1
86 entries (50%) are houses, terraces and villas. 10 are churches, chapels and priories.
Buildings are sorted by Cadw’s broad class for each building, else by words in its name; an entry named only by its address counts as a house.
Grade II
168 Grade II listed buildings
Most listed buildings are in this grade, which covers buildings of special interest. Open any building to read its official list entry.
The first 150 of 168 Grade II listed buildings, A to Z
Alliance & LeicesterAngel Inn PHAubra'sBoundary Walls and Gates to St. Idloes Parish ChurchyardBrynderwenBrynhafrenBrynhafrenCalvinistic Methodist ChapelCastle HouseCeri HillChapel HallChapel HallChapel HouseChapel HouseClaremontClywedog HouseCourtyard Wall and Outbuildings to:-Crown & Anchor P.H.Cynon CottageCynon CottageDol-Llys LodgeDolenogDresden HouseE.Owen & SonsElephant HotelFish & Chip ShopFormer Coach-House and Stables at Maenol (Maenol Cottage)Former Cottage to rear of 7-9Former English Wesleyan chapelFormer Flannel MillFormer Railway Foundry original building and NE cross range only (now Hafren Furnishers warehouse)Former Railway StationFormer Stables and Coach-house at DolenogFormer weaving factory to the rear of 40-44 High StreetFoundry HouseFrankwell CottageFrankwell HouseGlanclywedog HouseGorn ViewHouse attached to Llanidloes Rugby ClubHouse to rear of PerllandyHuntsman's CottageJ.K.MorganLampstandard Outside the Town HallLampstandard outside the Town HallLaura AshleyLaurelsLlanidloes Baptist ChapelLlanidloes Rugby ClubLlinos Hair SalonMaenolMaesbury HouseMagistrate's CourtMidland BankMinfforddMorris, Marshall and PooleNational Westminster BankNatural FoodsNot Just BooksOakview including Bethany BooksOxfamOxfamOxfamPerllandy (The Apple Tree)Plynlimon HouseRed Lion Hotel P.H.Royal Head P.H.Royal Head P.H.Royal Head P.H.Severn ViewShoepermarketSiop Yr OenSmithfield HouseSummerhouse Folly in the grounds of MaenolTalerddig Bakery including Tourist Information CentreTelephone Call-box at corner of Great Oak StreetThe BakehouseThe FriaryThe Great OakThe GreenThe HolliesThe Oxford, 2, 3, 4 & 4A China StreetThe Stag P.H.The Stag P.H.The Traveller's RestTitley Evans & Co (rear of)Town HallTrewythen Arms HotelTurner's Hair FashionsUnicorn Hotel P.H.Unicorn Hotel P.H.Upper White HouseW.Henry PriceWarehouse in the Courtyard to the rear of Nos. 22-25Wendy's NurseryWestbourne1 Foundry Terrace1 Highgate Terrace10 Foundry Terrace10 High Street11 Foundry Terrace11 High Street12 Foundry Terrace12 High Street13 Foundry Terrace13 High Street14 Foundry Terrace15 Foundry Terrace16 Foundry Terrace17 Foundry Terrace18 Great Oak Street19 China Street19 Great Oak Street2 Foundry Terrace2 Highgate Terrace2 Short Bridge Street20 China Street20 Great Oak Street21 Great Oak Street22 Bethel Street22 China Street22 Great Oak Street22 Long Bridge Street23 Bethel Street23 China Street23 Great Oak Street24 Bethel Street25 Bethel Street25 Great Oak Street26 Great Oak Street27 Great Oak Street29 Short Bridge Street3 Foundry Terrace3 Highgate Terrace3 Long Bridge Street3 Smithfield Street4 Foundry Terrace4 Highgate Terrace4 Smithfield Street40 High Street41 High Street42 High Street43 High Street44 Bridge Street44 High Street45 High St. (Great Oak Street)46 High St. (Great Oak St.)5 Castle Street5 Foundry Terrace5 Highgate Terrace
Conservation areas
1 conservation area covers 13% of Llanidloes
Areas the council protects as a whole: demolition and changes to how buildings look need consent, and trees are protected.
North16 ha
16 hain conservation areas, of 122 ha inside the built-up area.
154 of the 171 listed buildings stand in one.
Cadw’s conservation areas via DataMapWales. Hectares are the part of each area inside the built-up area.
How the list grew
More than half of Llanidloes’s listed buildings were added in one year, 1989
The year each building now on the list was first listed.
1989 · 156
19501960197019801990200020102020
The first 6 entries were listed in 1950, 1 of the 1 Grade I buildings among them. 156 came in 1989. Only 1 has been added in the last 15 years.
History Grade
Llanidloes grades A+ for history
Protected heritage and the age of the town’s homes, against all UK towns.
Protected heritage, for its size and in all (175 points, 797 per 10,000 residents)More than 96% of UK towns
Homes built before 1919 (36%)More than 91% of UK towns
Two measures, each ranked against every UK town of 1,000 or more, with protected heritage counting twice as much as the age of homes. Protected heritage counts each listed building by its grade (Grade I three points, II* two, II one), each scheduled monument and battlefield two, and each registered park or garden by its grade; it is ranked both per 10,000 residents and as a total, so a village with one fine church doesn’t outrank a historic city. The second measure is the share of homes built before 1919, from the Valuation Office Agency’s council tax records. History is a character grade: it describes the town and isn’t part of the overall grade.
Homes by age
36% of Llanidloes’s homes were built before 1919
Every home by when it was built, from council tax records, against England & Wales (the dark tick).
35%
Before 1900
1.3%
1900–18
1.3%
1919–29
4.5%
1930s
9%
1945–54
6.4%
1955–64
8.3%
1965–72
12%
1973–82
5.1%
1983–92
5.1%
1993–99
7.7%
2000–08
1.9%
2009–15
2.6%
2016–25
LlanidloesEngland & Wales
35% of homes are Victorian or older, against 16% across England and Wales. The busiest period since was 1973–82, which added 12% of today’s homes.
Valuation Office Agency, council tax stock of properties by build period, 31 March 2025, for the neighbourhoods (LSOAs) that make up the town, split by where their residents live. Homes with no recorded build period (0 here) are left out; 1939–44 is not a period in the data.
Born here
3 notable people born in Llanidloes before 1900
Their lives on one timeline, earliest first.
Richard Gwyn
David Lloyd
John Owen
1500165018001950
Richard Gwyn1537–1584 · Welsh Catholic martyr and bard
DL
David Lloyd1597–1663 · Welsh poet and dean of St Asaph
JO
John Owen1698–1755 · Welsh priest
Everyone born in Llanidloes → Birthplaces from Wikidata; portraits from Wikimedia Commons.
Towns its size
Llanidloes has the 89th most Grade I buildings of 1,425 towns its size
Places of 1,000–4,000 people outside London, by Grade I listed buildings.
Llanidloes1
#7 of 1,425for listed buildings per resident (778 per 10,000). Burford, Painswick and Chipping Campden lead.
88 have more. The typical town its size has 0.
Neighbours
Listed buildings in the places around Llanidloes
In brief
Llanidloes in brief
Few towns are as rich in listed heritage as Llanidloes: per resident it has more than 96% of UK towns. All told, the list holds 171 listed buildings, 1 of them Grade I. Its housing is old: 36% of homes date from before 1919, against 15% in the typical UK town. Only 88 of the 1,425 towns nearest its size have more Grade I buildings.
On Foundry Terrace alone there are 17 listed buildings. A conservation area protects part of it. Most entries on the list, 50%, are houses, terraces and villas.
Questions about Llanidloes’s history
How many listed buildings are there in Llanidloes?
Cadw lists 171 buildings inside Llanidloes’s built-up area: 1 Grade I, 2 Grade II* and 168 Grade II.
What are the Grade I listed buildings in Llanidloes?
One: Old Market Hall.
Which street in Llanidloes has the most listed buildings?
Foundry Terrace (17), High Street (13) and Great Oak Street (10) have the most listed entries named by an address. One entry can be a whole terrace.
How many conservation areas are there in Llanidloes?
1, covering about 16 hectares of the town. The largest is North.
When were Llanidloes’s buildings listed?
The first in 1950; the most, 156, in 1989.
Who was born in Llanidloes?
Among people born before 1900: Richard Gwyn (1537), David Lloyd (1597) and John Owen (1698).
How old are the homes in Llanidloes?
36% of homes were built before 1919 and 42% before 1940, from the Valuation Office Agency’s council tax records (March 2025).
Listed buildings, scheduled monuments and historic parks and gardens: Cadw, © Crown copyright, via DataMapWales.
Sources: Cadw listed buildings, scheduled monuments and registered historic parks and gardens via DataMapWales, October 2026, inside the ONS 2022 built-up-area boundary · Valuation Office Agency, Council Tax: stock of properties by build period (31 March 2025) · TownRatings grades: our own summary of the data, ranked against UK towns only · Cadw conservation areas via DataMapWales (October 2026). All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.