Historic houses · South East England
Portsmouth Block Mills
In or near Portsmouth.
Portsmouth Block Mills — a Grade I-listed historic house in england-south-east, United Kingdom.

Basher Eyre — CC BY-SA 2.0 via Wikimedia Commons licence
Plan your visit
- Typical visit
- 1 h–2 h
- Nearest railway station
- Portsmouth Harbour · 0.8 km
- Free entry
- Family-friendly
- Wheelchair accessible
Getting there & planning your visit
Portsmouth Block Mills is located at postcode PO1 3PY and is approximately 0.8 km from Portsmouth Harbour railway station. Entry is free, and the site is accessible for wheelchair users.
About
Portsmouth Block Mills is a Grade I-listed building in england-south-east, United Kingdom. Grade I status is conferred by Historic England (or Cadw, Historic Environment Scotland or NIEA equivalents) on buildings of exceptional national interest. See the linked Wikipedia article for full historical and architectural details.
Photo gallery
Summary from the official site
The Portsmouth Block Mills is home to the Mary Rose Museum, which showcases the history of Henry VIII's favorite ship and features the largest collection of Tudor artifacts. Visitors can explore the museum's exhibits, learn about the ship's archaeological significance, and participate in various educational activities.
Read more on the official property page.
Protected designations
- Site of Special Scientific Interest: Portsmouth Harbour SSSI
- Ramsar wetland: Portsmouth Harbour
Designations sourced from Natural England open data under OGL v3.
From the Wikipedia article
The Portsmouth Block Mills form part of the Portsmouth Dockyard at Portsmouth, Hampshire, England, and were built during the Napoleonic Wars to supply the British Royal Navy with pulley blocks. They started the age of mass-production using all-metal machine tools (designed chiefly by Marc Isambard Brunel), and are regarded as one of the seminal buildings of the British Industrial Revolution. They are also the site of the first stationary steam engines used by the Admiralty. Since 2003 English Heritage has been undertaking a detailed survey of the buildings and the records relating to the machines.
Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.
Background
Description
The machines were of 22 types and totalled 45. They were driven by two 30 hp steam engines. The machines included circular saws, pin turning machines and morticing machines. With these machines 10 men could produce as many blocks as 110 skilled craftsmen. A pulley-block has four parts: the shell, the sheave, the pin for locating the latter in the shell and a metal bush, or coak, inserted into the sheave to save wear between it and the pin. Blocks can vary in size and in the number of sheaves. The process of making the shells <gallery> File:Science Museum - Portsmouth Block Mills 2.jpg|Boring machine (rear) File:Science Museum - Portsmouth Block Mills 9.jpg|Mortising machine File:Science…
Sourced from Wikipedia under CC BY-SA 4.0.
- Coordinates
- 50.8035, -1.1093
- District
- Portsmouth
- Parish
- Portsmouth, unparished area
- Postcode
- PO1 3PY
- Parliamentary constituency
- Portsmouth South
- Phone
- +44 (0) 23 9281 2931
- Nearest railway station
- Portsmouth Harbour — 0.8 km
- Official site
- maryrose.org
Sources
- wikidata: Q3399543 (CC0)
- wikipedia: Portsmouth Block Mills (CC BY-SA 4.0)
Other places nearby

Mary Rose Museum
Museums · 0.1 km

HMS Victory
Maritime museums · 0.2 km

HMS Monitor M33
Natural landmarks · 0.2 km

National Museum of the Royal Navy, Portsmouth
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St Ann's Church, HMNB Portsmouth
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Thomas Telford
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Action Stations
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Mary Rose
Maritime museums · 0.5 km

36 Hours Jutland 1916
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William III Statue
Memorials & monuments · 0.5 km

HMNB Portsmouth
Marinas · 0.5 km

HMNB Portsmouth
Islands · 0.5 km
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Frequently asked questions
- Where is Portsmouth Block Mills?
- Portsmouth Block Mills is in South-East England, United Kingdom (postcode PO1 3PY), in the parish of Portsmouth, unparished area.
- What is Portsmouth Block Mills?
- Portsmouth Block Mills — a Grade I-listed historic house in england-south-east, United Kingdom.
- How do I get to Portsmouth Block Mills?
- The nearest railway station is Portsmouth Harbour, about 0.8 km away. Drivers can use postcode PO1 3PY.
- Is Portsmouth Block Mills a listed building?
- Portsmouth Block Mills is officially recognised as Grade I listed.
- Is Portsmouth Block Mills a protected site?
- Yes — Portsmouth Block Mills is part of the Portsmouth Harbour SSSI Site of Special Scientific Interest and the Portsmouth Harbour Ramsar wetland.
- How do I get to Portsmouth Block Mills?
- The nearest railway station is Portsmouth Harbour, about 0.8 km away. Drivers can navigate to postcode PO1 3PY.