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Treowen
Historic house · near Monmouth · Gwent

Treowen

Treowen is a country house in Monmouthshire. Its location is 3.1 km west of Monmouth. It is on the official list as a Grade I listed building.

Photo: Treowen, Jessica Aidley (CC BY-SA 2.0)
Where
3.1 km
west of Monmouth
How well known
Top 19%
#1,601 of 8,556 places we list
Warmest months
May–Sep
highs of 17–22°C
In brief

Historic house near Monmouth

Just outside Monmouth

Treowen is 3.1 km west of Monmouth. Towns near it ↓

Grade I listed building

On the official list of protected heritage; Monmouth has 377 listed buildings in all, on its History page. About ↓

Written from OpenStreetMap, Wikidata, the ONS built-up areas and Met Office 1991–2020 averages.

When to go

Picking your season

In Monmouth, May to September bring the warmest days: highs of 17–22°C.

Jan8° / 3°93 mm
Feb9° / 3°72 mm
Mar11° / 4°65 mm
Apr14° / 5°63 mm
May17° / 8°66 mm
Jun20° / 11°62 mm
Jul22° / 13°57 mm
Aug21° / 12°76 mm
Sep19° / 10°67 mm
Oct15° / 8°103 mm
Nov11° / 5°101 mm
Dec8° / 3°103 mm
Green months are the warmest. Typical afternoon highs and night lows in Monmouth, and rain in a month. Met Office HadUK-Grid 1991–2020 averages for Monmouth. Opening times change through the year: check before you go. Monmouth’s full climate →
About

Treowen

Wikipedia covers it in 5 languages. A short trip away is Monmouth Castle, 4.8 km off, the first of 33 within 15 km.

Monmouth’s listed buildings and monuments →

Type
Historic house
Listed
Grade I listed building
Wikipedias
Covered in 5 languages
Town
3.1 km west of Monmouth
Official site
treowen.co.uk
Facts: Wikidata (CC0) and OpenStreetMap (© OpenStreetMap contributors).
The map

The map

Treowen sits at the orange dot; the numbered ones are listed below.

12345678

© OpenStreetMap contributors · ONS built-up area 2022

Towns near it

Towns that count Treowen

Its home town tops the list; the rest follow by distance.

1 · 3.1 km east of it

Monmouth

10,330 people · 12 places to visit

Make a day of it

Combine it with these

Choose from 33 places within 15 km, such as 3 castles, 2 abbeys or priories and an attraction.

1Castle · CadwMonmouth Castle4.8 km away2Castle · CadwRaglan Castle5.5 km away3Abbey or priory · CadwTintern Abbey13 km away4Abbey or prioryMonmouth Priory5.1 km away5AttractionAttractionMonmouth Heritage Trail4.3 km away6Historic houseThe Hendre3 km away7CastleCastle · CadwSkenfrith Castle9.2 km away8MuseumShire Hall Museum4.9 km away

Within 15 km, close and well known first. Numbers match the map.

Good to know about Treowen

Where is Treowen?

Treowen is 3.1 km west of Monmouth, Gwent.

What is Treowen?

Country house in Monmouthshire, Wales.

When is the best time to visit Treowen?

May to September are the warmest months in Monmouth, with afternoon highs of 17–22°C (Met Office 1991–2020 averages).

Is Treowen a listed building?

Yes: Grade I listed building.

What else is there to see near Treowen?

Within 15 km: Monmouth Castle (4.8 km), Raglan Castle (5.5 km), Tintern Abbey (13 km) and Monmouth Priory (5.1 km).

Places: OpenStreetMap (© OpenStreetMap contributors, Open Database Licence) and Wikidata (CC0), placed in the ONS 2022 built-up area (Open Government Licence v3.0). Visitor counts are the latest Wikidata gives, with their year.

Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).

Photo credits (7)

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.