The Hammerwood estate entered a period of decline after the First World War, and much of the village was sold off.
In c. 1930, the owner of Hammerwood Park at that time (a Lt.
Col.
Pollen) provided for a Hammerwood and Holtye Village Hall, next to the Vicarage.
There was also a Hammerwood and Holtye Women's Institute, and a Hammerwood and Holtye Men's Club (both ceased to exist in the 1980s).
The Hammerwood County Primary School closed in 1959, and the ecclesiastical parish of Hammerwood was united with that of St Mary Magdalene, Cowden in June 1977.

During the Second World War, on 2 March 1944 a Heinkel He 177 of the Luftwaffe's Kampfgeschwader 100 on a bombing mission to London was shot down over Hammerwood by a Mosquito Mk XIII of No.
151 Squadron RAF at 3:15 am.
Six were on board the German aircraft; four survived, and wreckage was scattered widely in nearby woodland.
Hammerwood Park was requisitioned for use by the armed forces during that war, becoming home to 200 soldiers (including the cricketer Denis Compton, and a contingent from the Canadian Army).
From November 1943, No.
660 Squadron RAF operated from an unpaved airstrip (RAF Hammerwood) to the east of the village, from which the SOE flew Westland Lysanders for a time.
Flying ceased by July 1944.
On 29 August 1944, a V-1 flying bomb which had been shot down by an aircraft came down in the village.
After the war, Hammerwood Park was divided into flats and the remnants of the estate were purchased by Led Zeppelin.
It subsequently became derelict, before being purchased by the current owner in 1982.
A programme of rolling restoration continues.
The Hammerwood estate entered a period of decline after the First World War, and much of the village was sold off. In c. 1930, the owner of Hammerwood Park at that time (a Lt. Col. Pollen) provided for a Hammerwood and Holtye Village Hall, next to the Vicarage. There was also a Hammerwood and Holtye Women's Institute, and a Hammerwood and Holtye Men's Club (both ceased to exist in the 1980s). The Hammerwood County Primary School closed in 1959, and the ecclesiastical parish of Hammerwood was united with that of St Mary Magdalene, Cowden in June 1977.
During the Second World War, on 2 March 1944 a Heinkel He 177 of the Luftwaffe's Kampfgeschwader 100 on a bombing mission to London was shot down over Hammerwood by a Mosquito Mk XIII of No. 151 Squadron RAF at 3:15 am. Six were on board the German aircraft; four survived, and wreckage was scattered widely in nearby woodland. Hammerwood Park was requisitioned for use by the armed forces during that war, becoming home to 200 soldiers (including the cricketer Denis Compton, and a contingent from the Canadian Army). From November 1943, No. 660 Squadron RAF operated from an unpaved airstrip (RAF Hammerwood) to the east of the village, from which the SOE flew Westland Lysanders for a time. Flying ceased by July 1944. On 29 August 1944, a V-1 flying bomb which had been shot down by an aircraft came down in the village. After the war, Hammerwood Park was divided into flats and the remnants of the estate were purchased by Led Zeppelin. It subsequently became derelict, before being purchased by the current owner in 1982. A programme of rolling restoration continues.
Hammerwood