yup, 20 S Street NW being converted to a two-family flat (a popular activity in Bloomingdale!)

Bloomingdale DCRA building permits for Monday, 04-08-2013:

PERMIT_SUBTYPE_NAME	FULL_ADDRESS	DESC_OF_WORK
MECHANICAL	67 SEATON PL NW
ALTERATION AND REPAIR	20 S ST NW	INTERIOR RENOVATION.  CHANGE OF USE FROM SINGLE FAMILY HOME TO TWO FAMILY FLAT.
ALTERATION AND REPAIR	132 SEATON PL NW	USING EXISTING FLOOR TO CONSTRUCT A LOFT ON THE SECOND FLOOR.
BUILDING	54 W ST NW	REPAIRS OF REAR PORCH AND STEPS IN A SINGLE FAMILY DWELLING.