Honddu Isaf is a community in Powys, situated immediately to the north of Brecon on either side of the B4520 road to Builth Wells.

The community includes the villages of Lower Chapel, Castle Madoc, Pwllgloyw, Sarnau Garthbrengi and Llandefaelog Fach.

[1] There are 2 churches, which continue to hold services in the council area, one at Llandefaelog and one in Lower Chapel.

There are a number of public footpaths and bridleways traversing the community council area.

This Powys location article is a stub.