Dorchester: Roman Durnovaria, Hardy's Casterbridge and Getting There from Weymouth

Dorchester is the county town of Dorset and not a village at all: a market town on the River Frome, on the A35 trunk route between Poole and Bridport, with 21,358 people in the 2021 census for a civil parish that takes in Fordington and Poundbury. It works for a living rather than for holidaymakers: six industrial estates, a weekly market, the county hospital.

You go from Weymouth for the layers. The Romans defeated the local Durotriges tribe by 70 AD and built a garrison town they called Durnovaria, and enough of it survives at ground level to walk between in an afternoon: the line of the walls, an amphitheatre near the town centre, and the only visible Roman town house in Britain. On top of that sit a courtroom where the Tolpuddle Martyrs were sentenced and the town Thomas Hardy renamed Casterbridge.

Wikipedia puts the town about 7 miles (11 km) north of Weymouth, measured directly; the straight-line distance from Weymouth is 11.6 km. Between the two runs the South Dorset Ridgeway, a chalk ridge carrying part of the South West Coast Path and more than five hundred ancient monuments.

The Roman town: the walls, the amphitheatre and a town house

The oldest settlement here was not the town. Maiden Castle, an Iron Age hill fort about 2 miles (3.2 km) southwest of the modern centre, was one of the most powerful settlements in pre-Roman Britain. The Roman walls that succeeded it are mostly gone, but their line is not: most have been replaced by pathways forming a square inside the modern town, known as The Walks, with one small segment of original wall left near the Top o’ Town roundabout.

Maumbury Rings Roman Amphitheatre, 4.5 from 359 Google reviews, is an ancient British henge earthwork that the Romans converted for use as an amphitheatre, and it stands near the town centre. North of County Hall is the Roman town house, one of the town’s five Grade I listed structures, dating from the early 4th century and retaining a hypocaust heating system and mosaic pavements.

Hardy’s Casterbridge, the Shire Hall courtroom and the museums

Thomas Hardy based the fictional Casterbridge on Dorchester, and The Mayor of Casterbridge is set there. He designed his own town house, Max Gate, built it in 1885 and lived there until his death in 1928; it belongs to the National Trust, is open to the public and carries 4.6 from 794 Google reviews.

Shire Hall on High West Street, built in Portland stone in 1797, is where the Tolpuddle Martyrs were tried in 1834 after founding the Friendly Society of Agricultural Labourers; the cells that held prisoners awaiting trial are beneath the courtroom. It housed the Crown Court until 1955 — Hardy sat there as a magistrate — and opened as a museum in 2018. The Bloody Assizes of 1685 had condemned almost 300 of the Duke of Monmouth’s men to death or transportation, under Judge Jeffreys, in the Oak Room of the Antelope Hotel.

Dorset Museum and Art Gallery, 4.5 from 1,284 Google reviews, holds Roman artefacts and archaeological finds from the ridgeway. A visitor in June 2026 wrote, “I’ve not been in years and wow what a change and improvement.” Another that month, for Hardy readers: “If you are a Thomas Hardy fan then the Hardy room is a must for you”.

The other museums vary, and the ratings say so. The Tutankhamun Exhibition sits at 3.9 from 581 Google reviews and The Dinosaur Museum at 3.4 from 814, below anything else in town. The Keep Military Museum, the Terracotta Warriors Museum and the Dorset Teddy Bear Museum are also in town, along with the Dorchester Curiosity Centre, an antique store at 4.5 from 920 Google reviews.

Borough Gardens, Brewery Square and Kingston Maurward

The land for the formal Borough Gardens, between West Walks and Cornwall Road, was bought in 1895, and the clock and bandstand followed in 1898. At 4.7 from 1,510 Google reviews it is the best-rated thing in the town, and reviewers treat it as a park rather than an attraction: a visitor in June 2026 called it “An excellently maintained garden in Dorchester town, a place for locals to relax, enjoy quietness and nature.” Brewery Square, the redevelopment with shops, bars, restaurants and cultural venues, carries 4.3 from 1,819 Google reviews.

Kingston Maurward Animal Park and Gardens, on the outskirts beside the land-based studies college, is 4.6 from 1,681 Google reviews, but recent opinion is split. A visitor in July 2026 listed “Goats, pigs,alpacas,poultry,ponies and others to see.” A visitor in July 2025 disagreed: “So different from last year. Very few animals, animal park looks unloved, previously beautiful gardens and borders full of weeds and overgrown.” Reviewers in 2026 also report a parking charge, and one arrived to find the playground closed for maintenance and the café shut in hot weather.

Fires, the Duchy of Cornwall and why Poundbury is there

Less of the town is old than its history suggests, because it kept burning: serious fires in 1613, 1622, 1725 and 1775, the first destroying 300 houses and two churches. Judge Jeffreys’ lodgings and a Tudor almshouse survived; most of what replaced them is Georgian, much of it in Portland stone. The town then stayed compact inside the old walls until late in the 19th century, because the Duchy of Cornwall owned the land immediately west, south and east as the Manor of Fordington; enclosure in 1874 released it, and the Borough Gardens, the recreation ground and the brewery followed. The Duchy is also why Poundbury is there, built since 1993 on Duchy land to urban village principles and eventually housing about 6,000 people, with Charles III involved in the design.

Getting there from Weymouth

The train is the easy answer. There are two stations. Dorchester South, 11.1 km from central Weymouth, is on the South West Main Line between London Waterloo, Bournemouth and Weymouth, run by South Western Railway; Trainline gives the fastest Dorchester to Weymouth journey as 8 minutes. Dorchester West, 11.3 km out and designed by Isambard Kingdom Brunel, is on Great Western Railway’s Heart of Wessex Line towards Yeovil, Bath and Bristol.

By bus, First Hampshire and Dorset run route 10, a frequent service between the two towns via Upwey. By road it is the A354; a bypass completed in 1988 took through traffic around the south and west of the town, though the A35 here is often badly congested. For cyclists, National Cycle Network Route 26 passes through both towns, and the Beryl e-bike scheme covers Dorchester, Weymouth and Portland.