It is nearly 3 miles north of Hatfield, on the southeast side of Brocket Hall Park. It is widely known for its large mill on the River Lea, which is now the headquarters of Ramblers Worldwide Holidays. The church was erected in 1859 as a memorial to the sixth Earl Cowper, is Early English and Decorated, with a good east window, the latter also dedicated to the memory of the earl. The tower (west) is lofty and embattled.
The yearly Lemsford Fete garners thousands of visitors and is a traditional English country fete. Held at St. John's School and Church, activities include maypole dancing, raffles and live music.
- "Lemsford Church". Retrieved 14 September 2013.
- "Stephen Ward". Archived from the original on 4 September 2013. Retrieved 14 September 2013.
- Davies, Alan. "Lemsford village prepares for popular annual May fete". Welwyn Hatfield Times. Retrieved 2019-01-25.