This municipality has experienced contour changes since 2013 :
01/01/2019 – Saint-Pierre-de-Plesguen devient commune déléguée (chef-lieu) au sein
de Mesnil-Roc'h (35308) (commune nouvelle).
01/01/2019 – Création de la commune nouvelle de Mesnil-Roc'h en lieu et place des
communes de Lanhélin (35147), de Saint-Pierre-de-Plesguen (35308) et de Tressé (35344)
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
1 117
1 224
1 342
1 450
1 568
1 761
1 967
2 153
2 188
Principal residences
972
977
1 038
1 095
1 166
1 437
1 622
1 775
1 873
Second dwellings and occasional dwellings
100
131
184
264
270
228
162
178
156
Vacant accommodations
45
116
120
91
132
96
183
199
159
(*) 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
82,5
82,5
85,6
Second dwellings and occasional dwellings
8,2
8,3
7,1
Vacant dwellings
9,3
9,3
7,3
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
1 967
100,0
2 153
100,0
2 188
100,0
Houses
1 872
95,2
2 044
95,0
2 088
95,5
Flats
90
4,6
98
4,6
93
4,3
Others
6
0,3
11
0,5
6
0,3
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
153
7,8
98
4,5
due to the household size effect
41
2,1
31
1,4
due to the demographic effect
112
5,7
67
3,1
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
1 622
100,0
1 775
100,0
1 873
100,0
1 room
5
0,3
9
0,5
13
0,7
2 rooms
94
5,8
80
4,5
76
4,1
3 rooms
264
16,3
279
15,7
249
13,3
4 rooms
424
26,2
447
25,2
486
25,9
5 rooms or above
835
51,5
960
54,1
1 049
56,0
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
4,6
4,7
4,8
House
4,7
4,8
4,9
Flat
2,9
3,0
2,8
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
10,3
11,0
8,2
Moderate over-occupation
1,2
0,8
2,1
Severe over-occupation
0,0
0,0
0,0
Moderate under-occupation
27,1
23,6
19,5
Severe under-occupation
28,2
29,4
33,2
Very severe under-occupation
33,2
35,3
37,0
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
1 804
100,0
Before 1919
349
19,4
From 1919 to 1945
182
10,1
From 1946 to 1970
241
13,4
From 1971 to 1990
350
19,4
From 1991 to 2005
275
15,2
From 2006 to 2019
407
22,6
Source : Insee, RP2022 main operation, geography as of 01/01/2025.
