112 listed buildings, 2 of them Grade I

Church of St DavidGrade I listedThe Tower at Eastington Manor HouseGrade I listedThe ObservatoryGrade II* listedBaptist church SchoolroomGrade II listedThe Masonic HallGrade II listed+15See all photos

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.

c. 1775

c. 1810

c. 1820

c. 1830

1830s

1913

c. 1934

1946

Public domain, from Wikimedia Commons, copied to our own server. Each credit opens the image’s page with its full description and history.

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. Neighbourhood dots: the population-weighted centre of each Census 2021 output area, coloured by its neighbourhood’s (LSOA’s) share of homes built before 1919 (Valuation Office Agency, March 2025).

Cadw’s conservation areas via DataMapWales. Hectares are the part of each area inside the built-up area.

The first 3 entries were listed in 1951, 1 of the 2 Grade I buildings among them. 63 came in 1993. Only 0 have been added in the last 15 years.

8 scheduled monuments

Nationally important archaeological sites and monuments, protected by law; work on them needs consent from the Welsh Government (Cadw).

Eastington Manor HouseMedieval; Manor

Fort HubberstonPost Medieval/Modern; Fort

Fort Popton (Curtain Walls and Gun Emplacements only)Post Medieval/Modern; Fort

Hakin ObservatoryPost Medieval/Modern; Observatory

Pill PrioryMedieval; Priory

Priory RathPrehistoric; Rath

South Hook FortPost Medieval/Modern; Fort

West Popton CampPrehistoric; Promontory Fort - coastal

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.

Howell Davis

Isaac Davis

Charles Lewis

Alfred Weeks Szlumper

Arthur Symons

Hubert William Lewis

1650170017501800185019001950

Arthur Symons1865–1945 · British poet (1865-1945)

Howell Davis1690–1719 · Welsh pirate

ID

Isaac Davis1758–1810 · Welsh advisor to Kamehameha I who helped form the Kingdom of Hawaii

Alfred Weeks Szlumper1858–1934 · Chief engineer

Hubert William Lewis1896–1977 · Recipient of the Victoria Cross (1896–1977)

CL

Charles Lewis1828–1913 · South African politician (1828-1913)

Everyone born in Milford Haven → Birthplaces from Wikidata; portraits from Wikimedia Commons.

Measured per resident, Milford Haven has more listed heritage than 81% of UK towns. In all there are 112 listed buildings, 2 of them Grade I, including St David's Church. Only 51 of the 562 towns nearest its size have more Grade I buildings. Hamilton Terrace alone has 12 listed buildings.

A conservation area has protected part of it since 1975. Of the 6 people born here before 1900, the best known include Arthur Symons (1865), Howell Davis (1690) and Isaac Davis (1758). It also has 8 scheduled monuments, the archaeology and ruins the law protects. The rest is about typical: 20% of its homes were built before 1919, close to the 15% in the typical UK town.