21 Water St N
City of Cambridge
- 2 permits
- since 2019
- Mar 12, 2026
- Most recent permit
Building permit timeline
Year-grouped permit history. Permits collapse under each year.
-
2026
1 filing · most recent March 2026View permits (1) Hide permits
-
2019
1 filingView permits (1) Hide permits
-
Nov 4, 2019
-
Nearby Construction
Within 250 mActive and recent construction within 250 m of this address.
35 locations shown
-
1
14 m
15 Water St N
Renovation -
2
51 m
12 Water St N
Renovation -
3
66 m
26 Main St
Renovation ×3 -
4
85 m
45 Water St N
Renovation ×2 -
5
91 m
44 Main St
Renovation -
6
92 m
15 Main St
New Build -
7
95 m
25 Main St
Renovation ×3 -
8
97 m
29 Main St
Renovation -
9
98 m
31 Main St
Renovation -
10
107 m
39 Main St
New Build -
11
108 m
58 Main St
Renovation ×3 -
12
110 m
30 Dickson St
Renovation -
13
115 m
57 Water St N
Renovation -
14
122 m
38 Ainslie St N
Renovation -
15
137 m
63 Main St
Renovation -
16
140 m
48 Ainslie St N
Renovation -
17
141 m
15 Ainslie St N
Renovation -
18
143 m
14 Water St N
Renovation -
19
144 m
9 Ainslie St N
Renovation -
20
147 m
50 Ainslie St N
Renovation ×2 -
21
147 m
69 Main St
Renovation -
22
165 m
73 Main St
Renovation -
23
167 m
65 Water St N
Renovation -
24
176 m
75 Main St
Renovation -
25
191 m
39 Grand Ave N
Renovation -
26
194 m
90 Main St
Renovation -
27
194 m
24 Queens Sq
Renovation -
28
197 m
7 Melville St S
Renovation ×3 -
29
206 m
30 Water St S
Renovation ×4 -
30
210 m
87 Main St
Renovation -
31
210 m
6 Cambridge St
Renovation -
32
214 m
73 Water St N
Renovation ×2 Demolition -
33
234 m
89 Main St Unit 106
Renovation -
34
238 m
7 Grand Ave S
Renovation -
35
241 m
50 Dickson St
Renovation ×2
New Build
Renovation
Demolition
Construction activity detected within 250 m, from the City of City of Cambridge's open data. Each pin is a City-geocoded point (which may hold more than one record/address); click for details. OGL – City of Cambridge
Nearby active addresses
Direct next steps for exploration.
-
25 Main St
95m3 recent · 8 total
Personal Service · 3 filings in the last 12 months, latest May 2026
-
26 Main St
66m2 recent · 10 total
2 filings in the last 12 months, latest Jun 2026
-
45 Water St N
85m2 recent · 13 total
Personal Service · 2 filings in the last 12 months, latest Jul 2025
-
13 Water St N
15m11 filings
Medical · Last filed Oct 2022
-
1 Water St N
38m16 filings
Institutional · Last filed Apr 2018
21 Water St N in Cambridge has 2 building permits on record dating back to 2019, most recently on March 12, 2026.