‘In 1838 [Mr Loudon] also gave up the Architectural Magazine.’ This is a quote from The Claudians: gardens, landscapes, reason and faith: John Claudius Loudon and Claudius Buchanan, Tom Turner (Kindle, 2024).

Loudon's encyclopedias and magazines of architecture and gardening were the world's first specialised publications in their categories. Earlier publications had covered the subjects, to a degree, in more general works. Loudon's approach was more professional, more systematic, better informed, carefully referenced and comprehensively illustrated.
Loudon’s Architectural Magazine had a significant role in shaping British architecture and design during the 19th century. It had articles on architectural styles and trends, guidance on building techniques and materials, reviews of new buildings and landscape designs, a great many engravings and illustrations showcasing architectural plans and details, discussions on urban planning and social reform related to housing.
Loudon's Architectural Magazine was the title of the world's first magazine devoted entirely to architecture. Before its appearance there were architectural treatises, journals, and sections within broader publications that covered architecture, but they were not solely devoted to architecture. Loudon's magazine played a significant role in the dissemination of architectural ideas during the early 19th century, especially in the context of the Gothic Revival and debates about architectural styles. It helped to establish the idea of architecture as a discipline worthy of focused and ongoing discussion in a periodical format. The second British magazine devoted to building was The Builder, in the year of Loudon's death:1843.
Loudon’s Architectural Magazine was instrumental in advancing discussions on urban planning, particularly in relation to housing and public spaces. The magazine frequently addressed the challenges of rapidly expanding cities, advocating for thoughtful design in both residential and public architecture. Loudon’s emphasis on improving living conditions through well-planned urban layouts resonated with the emerging concerns of the Industrial Revolution. His magazine not only highlighted architectural aesthetics but also underscored the importance of functionality and social responsibility in urban development, influencing subsequent generations of architects and planners.
If his health and his finances had been better, Loudon’s Architectural Magazine could have been a considerable succes, as was the Encyclopedia of Architecture which Jane Loudon saw as a very useful publication.
See also: Gardenvisit.com appreciation of John Claudius Loudon.