Run the Hertfordshire Half Marathon and 10k in Support of The Living Room

Join us for the 2026 Hertfordshire Half Marathon and 10k in support of The Living Room.

Taking place on Sunday, 1^st of November, starting and finishing in front of the iconic Knebworth House, the route takes in the grounds of Knebworth Park before heading out to the surrounding country lanes.

Knebworth House is a grade II listed house set in acres of beautiful gardens and parkland. Knebworth House has welcomed many music artists for major open air concerts, including Robbie Williams, Oasis, Led Zepellin and Red Hot Chilli Peppers. The grounds are home to popular tourist attractions including an adventure playground and dinosaur trail.

If you’d like the opportunity to take one of our charity spaces, follow the link below. It costs £28 for a place in the10k run or £35 to secure a spot for the half marathon.