According to Bedfordshire Police, the group recently targeted three new houses in the village of Langford, near Biggleswade.
Cars parked outside the homes were daubed with paint - a classic tactic of the HBLF - and the local newspaper later received notes from the organisation claiming responsibility for the incident.
The self-styled heritage terrorists have vowed to wage a war against anybody threatening old buildings -in particular those buildings which are facing demolition because of 'the greed of developers and the indifference of planners' (AJ 30.03.06).
In the past, the HBLF has targeted a number of new developments and soon-to-be flattened 'gems' including the offices of the Hitchin Youth Trust in Hertfordshire - which were due to be pulled down - where paint was also thrown over trust members' cars.
Historically active in and around Bedfordshire, the AJ has been informed that the organisation now wants to wage its anti-development war on a national basis.
However, Bedfordshire Police said they believe the HBLF banner is in fact the operating name for a one-man vendetta, and the force hopes forensic information found at the site of the most recent attacks will help to track him down.