Evaluation of Data Extracted from Floor Plans for Apartment Complex Remodeling

Table 1

Apartment complex information.

Items	Complex ID (Building ID)
	I (A and B)		II (C and D)		III (E and F)		IV (G and H)		V (I)
	Before	After	Before	After	Before	After	Before	After	Before	After
Location	Gyeonggi province		Seoul		Seoul		Seoul		Seoul
Land area (m^2)	24,193		7,215		53,259		10,286		4,848
Year of completion	1995	Ongoing	1992	Ongoing	1992	Ongoing	1992	Ongoing	1992	Canceled
Building area (m^2)	3,014	5,111	1,768	2,274	8,295	14,883	2,407	4,134	1,037	1,726
Building-to-land ratio (%)	12.5	21.1	24.5	31.5	15.6	28.0	23.4	40.2	21.4	35.6
Total floor area (m^2)	−4,837	−32,226	−4,135	−10,580	−8,019	−93,453	−5,281	−14,774	−1,095	−7,110
	+41,669	+64,154	+18,845	+28,480	+97,362	+153,988	+28,211	+44,374	+11,491	+18,797
Floor area ratio (%)	172.2	264.1	268.5	399.7	182.8	289.1	274.3	431.4	248.9	387.8
# Units	563	647	208	237	1,753	1,988	298	340	120	138
# Floors	−1	−2	−1	−4	−1	−3	−2	−3	−1	−3
	+25	+28	+12–13	+13–15	+15	+18	+15	+18	+15	+18