This municipality has experienced contour changes since 2012 :
01/01/2019 – Le Chesnay devient commune déléguée (chef-lieu) au sein du Chesnay-Rocquencourt
(78158) (commune nouvelle).
01/01/2019 – Création de la commune nouvelle du Chesnay-Rocquencourt en lieu et place
des communes du Chesnay (78158) et de Rocquencourt (78524) 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
1968(*)
1975(*)
1982
1990
1999
2010
2015
2021
Altogether
6 040
10 927
13 746
14 851
15 189
15 854
16 099
16 360
Principal residences
4 313
9 597
12 210
13 547
13 645
14 741
14 714
14 684
Secondary residences
51
392
607
601
471
426
425
511
Vacant accommodations
1 676
938
929
703
1 073
687
959
1 164
(*) 1967 and 1974 for the overseas departments
Sources : Insee, RP1967 to 1999 counts, RP2010 to RP2021 main holdings.
tableauLOG T2 - Types and categories of housings
LOG T2 - Types and categories of housings
2010
%
2015
%
2021
%
Altogether
15 854
100,0
16 099
100,0
16 360
100,0
Principal residence
14 741
93,0
14 714
91,4
14 684
89,8
Secondary residences
426
2,7
425
2,6
511
3,1
Vacant accommodations
687
4,3
959
6,0
1 164
7,1
houses
2 199
13,9
2 112
13,1
2 190
13,4
flats
13 520
85,3
13 715
85,2
13 951
85,3
Sources : Insee, RP2010, RP2015 and RP2021, main operations, geography as of 01/01/2024.
tableauLOG T3 - Principal residences by number of rooms
LOG T3 - Principal residences by number of rooms
2010
%
2015
%
2021
%
Altogether
14 741
100,0
14 714
100,0
14 684
100,0
1 room
1 954
13,3
2 009
13,7
2 077
14,1
2 rooms
2 343
15,9
2 302
15,6
2 277
15,5
3 rooms
3 784
25,7
3 824
26,0
3 741
25,5
4 rooms
3 144
21,3
3 082
20,9
2 950
20,1
5 rooms or above
3 516
23,9
3 497
23,8
3 640
24,8
Sources : Insee, RP2010, RP2015 and RP2021, main operations, geography as of 01/01/2024.
tableauLOG T4 - Principal residences average number of rooms
LOG T4 - Principal residences average number of rooms
2010
2015
2021
All main residences
3,5
3,5
3,5
House
5,8
5,8
5,9
Flat
3,1
3,1
3,1
Sources : Insee, RP2010, RP2015 and RP2021, main operations, geography as of 01/01/2024.
tableauLOG T4bis - Main residences by over-occupation (except one room dwellings occupied
by one person)
LOG T4bis - Main residences by over-occupation (except one room dwellings occupied
by one person)
2010
2015
2021
Over-occupied
7,4
7,5
6,4
Non-over-occupied
92,6
92,5
93,6
Sources: Insee, RP2010, RP2015 and RP2021, additional operations, geography as of
01/01/2024.
tableauLOG T5 - Principal residences in 2021 by completion period
LOG T5 - Principal residences in 2021 by completion period
Number
%
Principal residences build before 2019
14 676
100,0
before 1919
531
3,6
from 1919 to 1945
678
4,6
from 1946 to 1970
4 552
31,0
from 1971 to 1990
6 762
46,1
from 1991 to 2005
1 201
8,2
from 2006 to 2015
952
6,5
Source : Insee, RP2021 main operation, geography as of 01/01/2024.