This municipality has experienced contour changes since 2013 :
01/01/2019 – Saint-Denis-d'Authou devient commune déléguée (chef-lieu) au sein de
Saintigny (28331) (commune nouvelle).
01/01/2019 – Création de la commune nouvelle de Saintigny en lieu et place des communes
de Frétigny (28165) et de Saint-Denis-d'Authou (28331) devenues déléguées.
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
424
474
527
566
579
617
644
666
682
Principal residences
296
284
258
304
347
404
427
425
435
Second dwellings and occasional dwellings
99
170
238
230
222
189
178
208
214
Vacant accommodations
29
20
31
32
10
25
40
33
33
(*) 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
66,3
63,8
63,8
Second dwellings and occasional dwellings
27,5
31,2
31,5
Vacant dwellings
6,1
5,0
4,8
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
644
100,0
666
100,0
682
100,0
Houses
635
98,6
653
98,0
671
98,4
Flats
3
0,5
3
0,5
3
0,4
Others
6
0,9
10
1,5
8
1,2
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
–2
–0,3
10
1,4
due to the household size effect
–16
–2,4
44
6,7
due to the demographic effect
13
2,1
–35
–5,2
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
427
100,0
425
100,0
435
100,0
1 room
3
0,7
5
1,2
3
0,7
2 rooms
32
7,5
26
6,1
33
7,6
3 rooms
109
25,6
103
24,1
87
20,1
4 rooms
120
28,2
128
30,1
127
29,1
5 rooms or above
163
38,0
164
38,6
184
42,4
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
4,3
4,3
4,4
House
4,3
4,3
4,4
Flat
4,0
2,5
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
15,0
15,5
13,1
Moderate over-occupation
5,6
3,6
2,2
Severe over-occupation
0,0
2,5
0,0
Moderate under-occupation
31,8
27,4
24,7
Severe under-occupation
21,5
26,1
22,5
Very severe under-occupation
26,2
24,9
37,5
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
435
100,0
Before 1919
168
38,6
From 1919 to 1945
38
8,7
From 1946 to 1970
40
9,2
From 1971 to 1990
108
24,9
From 1991 to 2005
45
10,3
From 2006 to 2019
36
8,4
Source : Insee, RP2022 main operation, geography as of 01/01/2025.
