City council agrees to end costly development fees for accessory dwelling units

A new ADU emerges after a Portland garage is converted.

The Portland City Council has moved aggressively to boost construction of more "granny flats" or accessory dwelling units, by permanently eliminating costly development fees for those who build them.

Since 2010, the city has deployed a series of short-term exemptions of systems development charges for new accessory dwelling units orADUs, and that policy helped boost annual construction from roughly 50 a year to 500 a year, said City Commissioner Chloe Eudaly.