This municipality has experienced contour changes since 2013 :
01/01/2016 – Treffort devient commune déléguée (chef-lieu) au sein de Val-Revermont
(01426) (commune nouvelle).
01/01/2016 – Création de la commune nouvelle de Val-Revermont en lieu et place des
communes de Pressiat (01312) et de Treffort-Cuisiat (01426).
In the case of a merger, when the geography of the source indicated under the table
/ graph is after the date of the merger, the data correspond to those of the new municipality.
tableauLOG T1 - Growth estimates of the number of housings by category since 1968
LOG T1 - Growth estimates of the number of housings by category since 1968
Housing category
1968(*)
1975(*)
1982
1990
1999
2006
2011
2016
2022
Altogether
685
713
877
920
1 015
1 075
1 234
1 280
1 281
Principal residences
466
456
605
707
807
896
1 011
1 055
1 085
Second dwellings and occasional dwellings
142
176
227
152
131
118
98
82
86
Vacant accommodations
77
81
45
61
77
61
125
143
109
(*) 1967 and 1974 for the overseas departments
Sources : Insee, RP1967 to RP1999 counts, RP2006 to RP2022 main holdings.
tableauLOG T1bis - Categories of housings
LOG T1bis - Categories of housings
Category of housing
2011
2016
2022
Principal residences
81,9
82,4
84,7
Second dwellings and occasional dwellings
8,0
6,4
6,7
Vacant dwellings
10,1
11,2
8,5
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T2 - Types of housings
LOG T2 - Types of housings
Type of housing
2011
%
2016
%
2022
%
Altogether
1 234
100,0
1 280
100,0
1 281
100,0
Houses
1 093
88,6
1 118
87,3
1 138
88,9
Flats
138
11,2
123
9,6
122
9,6
Others
3
0,2
40
3,1
20
1,5
Sources : Insee, RP2011, RP2016 et RP2022, exploitations principales, géographie au
01/01/2025.
tableauLOG T2bis - Contributions to the change in the number of principal residences
LOG T2bis - Contributions to the change in the number of principal residences
Contributions
2011-2016
%
2016-2022
%
Total change
43
3,5
31
2,4
due to the household size effect
–0
–0,0
66
5,1
due to the demographic effect
43
3,5
–35
–2,7
Note: The change in the number of households (and therefore in the number of main
residences) can be broken down into two effects: the "household size effect" and the
"demographic effect."
Indeed, a decrease in average household size leads to an increased housing need, even
if the population remains stable. The remaining part of the change is referred to
as the demographic effect.
These effects can be either positive or negative.
Sources : Insee, RP2011, RP2016 et RP2022, exploitations principales, géographie au
01/01/2025.
tableauLOG T3 - Principal residences by number of rooms
LOG T3 - Principal residences by number of rooms
Number of rooms
2011
%
2016
%
2022
%
Altogether
1 011
100,0
1 055
100,0
1 085
100,0
1 room
37
3,6
41
3,9
26
2,4
2 rooms
56
5,6
48
4,6
48
4,4
3 rooms
135
13,4
141
13,3
155
14,3
4 rooms
294
29,0
283
26,8
284
26,2
5 rooms or above
489
48,4
541
51,3
572
52,7
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T4 - Principal residences average number of rooms
LOG T4 - Principal residences average number of rooms
Type of main residence
2011
2016
2022
All main residences
4,5
4,6
4,6
House
4,8
4,9
4,9
Flat
2,7
3,1
3,1
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T4bis - Dwelling occupancy index
LOG T4bis - Dwelling occupancy index
Occupancy index
2011
2016
2022
Standard occupancy
12,1
11,3
9,8
Moderate over-occupation
3,6
3,8
4,2
Severe over-occupation
0,4
0,5
0,0
Moderate under-occupation
22,7
22,7
22,7
Severe under-occupation
29,1
30,2
28,1
Very severe under-occupation
32,0
31,6
35,2
Sources : Insee, RP2011, RP2016 and RP2022, main operations, geography as of 01/01/2025.
tableauLOG T5 - Principal residences in 2022 by completion period
LOG T5 - Principal residences in 2022 by completion period
Completion period
Number
%
Principal residences build before 2020
1 084
100,0
Before 1919
271
25,0
From 1919 to 1945
51
4,7
From 1946 to 1970
125
11,6
From 1971 to 1990
313
28,9
From 1991 to 2005
163
15,0
From 2006 to 2019
162
14,9
Source : Insee, RP2022 main operation, geography as of 01/01/2025.
