Carpdell Lake is a stunning 3-acre carp lake which has been closed for fishing for 4 years and so holds all manner of surprises.



Lake History

There has been a fishing lake on the site of Cassiobury Farm for more than 70 years. Originally a flooded gravel pit, the lake was initially stocked with naturally migrating fish such as roach and perch from the River Colne and the Grand Union Canal. Bream were introduced in the 1970’s from Hillfield Reservoir in Elstree by the kind permission of the Colne Valley Water Company, with NRA consent.

Carp were first introduced to the lake shortly after, the first of which came from a farm in the Cotswolds owned by Tim Farnsworth. The former President and Chairman of Watford Piscators, John Castle, was personally responsible for the first stocking of the lake.

For much of its history the lake, then called Rousebarn Lake, was sublet to Watford Piscators, finishing in 2012. The lake has been left unfished for the past 4 years whilst it has been upgraded, the water quality improved and some fresh stock brought in from VS and AE Fisheries.

Today the lake is home to Watford Angling Coaches ( as well as being offered as a private lake for hire.

Because the venue has not been fished for 4 years it is not known precisely what mysteries the lake contains. But the lake does have around 80 head of carp with known weights of:

Commons above 30lb
Mirrors above 39 lb
Crucian Carp above 3lb
Perch above 3lb 6oz
Bream above 10lb
Tench above 10lb
Pike above 20lb

Lake Facilities

The Lake is fully equipped for the perfect angling experience. A lake booking includes:

Exclusive use of the Clubhouse; a purpose built venue with indoor and outdoor seating, kitchen and power
Exclusive use of the toilet and shower
Barrel BBQ’s available for hire
Bait boats available for hire
Secure on-site parking
Newly refurbished swims on the best points of the lake
A range of takeaways set up to deliver to the lake