Table 4 Building area change of expanded... | Emerald Publishing

Table 4

Building area change of expanded houses based on area groups

Group	Expanded houses	Total of houses	Proportion of expanded houses (%)	Frequency of expanded (times)	Initial building area (m²/house)				Current building area (m²/house)				Area change (m²/house)
Group	Expanded houses	Total of houses	Proportion of expanded houses (%)	Frequency of expanded (times)	Main room	Auxiliary room	Shed	Subtotal	Main room	Auxiliary room	Shed	Subtotal	Main room	Auxiliary room	Shed	Subtotal
<150 m²	1,894	6,123	30.93	2,549	103.36	5.56	0.17	109.09	145.29	58.70	7.95	211.94	41.93	53.15	7.78	102.85
150–250 m²	4,523	11,128	40.65	6,229	186.15	12.37	0.43	198.95	197.87	71.07	13.05	281.98	11.72	58.70	12.62	83.04
250–350 m²	1,974	6,231	31.68	2,643	260.60	28.76	1.14	290.50	267.11	83.79	18.39	369.29	6.51	55.03	17.25	78.79
≥350 m²	581	3,552	16.36	753	361.69	53.48	2.68	417.85	369.56	107.52	25.69	502.78	7.87	54.04	23.01	84.92
Overall	8,972	27,034	33.19	12,174	196.42	17.20	0.68	214.30	213.12	73.62	13.97	300.70	16.70	56.42	13.29	86.41

Group	Expanded houses	Total of houses	Proportion of expanded houses (%)	Frequency of expanded (times)	Initial building area (m²/house)				Current building area (m²/house)				Area change (m²/house)
Group	Expanded houses	Total of houses	Proportion of expanded houses (%)	Frequency of expanded (times)	Main room	Auxiliary room	Shed	Subtotal	Main room	Auxiliary room	Shed	Subtotal	Main room	Auxiliary room	Shed	Subtotal
<150 m²	1,894	6,123	30.93	2,549	103.36	5.56	0.17	109.09	145.29	58.70	7.95	211.94	41.93	53.15	7.78	102.85
150–250 m²	4,523	11,128	40.65	6,229	186.15	12.37	0.43	198.95	197.87	71.07	13.05	281.98	11.72	58.70	12.62	83.04
250–350 m²	1,974	6,231	31.68	2,643	260.60	28.76	1.14	290.50	267.11	83.79	18.39	369.29	6.51	55.03	17.25	78.79
≥350 m²	581	3,552	16.36	753	361.69	53.48	2.68	417.85	369.56	107.52	25.69	502.78	7.87	54.04	23.01	84.92
Overall	8,972	27,034	33.19	12,174	196.42	17.20	0.68	214.30	213.12	73.62	13.97	300.70	16.70	56.42	13.29	86.41

Source(s): Authors' own work