Blackwall Yard was a shipyard on the Thames at Blackwall, London, engaged in ship building and later ship repairs for over 350 years. The yard closed in 1987. The yard should not be confused with the nearby Thames Ironworks and Shipbuilding Company, which, although their head office address was in Blackwall, was based at Leamouth Wharf.
Blackwall was a shipbuilding area since the Middle Ages. In 1607, the Honorable East India Company (HEIC) decided to build its own ships and leased a yard in Deptford. Initially, this change of policy proved profitable as the first ships cost the Company about £10 per ton instead of the £45 per ton that it had been paying to have ships built for it. However, the situation changed as the Deptford yard came to be expensive to run.
In 1614 the East India Company outgrew Deptford and ordered William Burrell to begin work on a new yard for repair, construction and loading of out-going ships. The site Burrell selected was at Blackwall, which was further down river and had deeper water, allowing laden ships to moor closer to the dock. The new yard was fully operational by 1617. The yard and its facilities were enlarged repeatedly during the early 17th Century. The yard was surrounded by a 12-foot (3.7 m) high wall, but was not used for storage of imported goods. Later on in the 17th century the East India Company reverted to its original practice of hiring vessels. In many cases the owners who chartered their vessel to the East India Company had them built at Deptford and Blackwall.
In 1656, following a decline in the East India Company's fortunes, the yard was sold to shipwright Henry Johnson (later Sir Henry), who was already leasing the docks and part of the yard. The premises sold included three docks, two launching slips, two cranes and storehouses. Johnson went on to expand the yard, which continued to build and repair ships for the East India company as well as other activities.
The Anglo-Dutch wars of the late 17th Century resulted in too much work for the royal dockyards, and the Navy Board under Samuel Pepys began to commission third rates from Blackwall which was by then the largest private yard on the Thames. A new dock of 1½ acres constructed in the 1660s was the largest wet dock in England until the construction of the Howland Great Wet Dock in Rotherhithe. Construction of merchant ships continued, with Blackwall building 12 ships between 1670 and 1677 in a period when a bounty was offered to shipbuilders by Charles II. Following Johnson's death in 1683 the yard passed to Henry's son Henry junior, who was not a shipwright. After Henry junior's death in 1718 on a posting as Governor of Cape Coast Castle for the Royal African Company, the yard had little work until sold in 1724 and was overtaken in importance by Bronsdens yard at Deptford. With the end of the Dutch wars naval shipbuilding had also retreated to the royal yards. This was reversed by war with Spain in 1739.