24-21  Private Buildings with Consent to Commence Work by Type of Building
	Residential		Residential/Commercial			Commercial		Industrial		Others			Total
				Usable Floor Area							Usable Floor Area			Usable Floor Area
Year	Number	Usable Floor	Number	(10 000 sq.m.)		Number	Usable Floor	Number	Usable Floor	Number	(10 000 sq.m.)		Number	(10 000 sq.m.)
	of Blocks	Area	of Blocks			of Blocks	Area	of Blocks	Area	of Blocks			of Blocks
	(number)	(10 000 sq.m.)①	(number)	Residential	Non-residential	(number)	(10 000 sq.m.)	(number)	(10 000 sq.m.)	(number)	Residential	Non-residential	(number)	Residential①	Non-residential
2008
First submission	146	27.1	25	12.1	2.2	9	10.4	5	10.7	88	0.4	12.7	273	39.6	35.9
Major revision	80	5.5	11	7.9	2.2					20		8.6	111	13.4	10.8
2009
First submission	181	20.4	42	15.1	3.1	10	13.2	15	8.7	155	0.8	24.9	403	36.3	49.9
Major revision	158	11.1	9	7.2	1.5			12	1.0	3	0.1	0.4	182	18.4	2.9
2010
First submission	345	7.6	18	10.0	1.2	8	13.6	9	3.4	132	6.2	45.0	512	23.9	63.3
Major revision	154	25.1	93	6.7	0.8					7	0.4	0.9	254	32.2	1.7
2011
First submission	52	14.1	65	17.9	2.7	14	6.4	13	10.9	84	1.4	18.4	228	33.5	38.4
Major revision	79	14.8	85	9.0	1.7	3	2.6	2	§	17	0.7	4.8	186	24.6	9.1
Note: ①Including usable floor area in residential buildings for non-domestic use, such as club house/recreational facilities, caretakers' office/quarters, transformer room, etc.