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Zone Conversion Table

The following tables lay out the conversion between zone designations from the Zoning Regulations of 1958 (ZR58), the original Zoning Regulations of 2016 (ZR16), and ZR16, as amended by Zoning Commission case number 18-16 (link to case record), effective 8/25/2023

More information on each specific zone can be found in the Zoning Handbook.

Subtitle D - Residential House (R)

ZR58 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
R-1-A R-1-A R-1A
R-1-B R-1-B R-1B
R-2 R-2 R-2
R-3 R-3 R-3
R-1-A/TSP R-6 R-1A/TS
R-1-B/TSP R-7 R-1B/TS
R-1-A/FH-TSP R-8 R-1A/FH
R-1-B/FH-TSP R-9 R-1B/FH
R-2/FH-TSP R-10 R-2/FH
R-1-A/NO/TSP R-11 R-1A/TS/NO
R-1-B/NO R-12 R-1B/NO
R-3/NO R-13 R-3/NO
R-1-A/WH R-14 R-1A/WH
R-1-B/WH R-15 R-1B/WH
R-1-B/SSH1 and R-
1-B/SSH2
R-16 R-1B/SH
R-3/FB R-17 R-3/FB
R-1-B (Georgetown) R-19 R-1B/GT
R-3 (Georgetown) R-20 R-3/GT
R-1-A/CBUT R-21 R-1A/CBUT

Subtitle E - Residential Flat (RF) 

1958 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
R-4 RF-1 RF-1
R-4/DC RF-2 RF-1/DC
R-4/CAP RF-3 RF-1/CAP
New Zone RF-4 RF-4
New Zone RF-5 RF-5

Subtitle F - Residential Apartment (RA)

1958 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
R-5-A RA-1 RA-1
R-5-B and DD/R-5-B RA-2 RA-2
R-5-C RA-3 RA-3
R-5-D RA-4 RA-4
R-5-E RA-5 RA-5
R-5-A/NO RA-6 RA-1/NO
R-5-B/CAP RA-7 RA-2/CAP
R-5-B/DC RA-8 RA-2/DC
R-5-D/DC RA-9 RA-4/DC
R-5-E/DC RA-10 RA-5/DC
R-5-B/RC RC-1 RA-2/RC

Subtitle G - Mixed Use (MU)

1958 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
SP-1 MU-1 MU-1
SP-2 MU-2 MU-2
C-1 MU-3-A MU-3A
C-1 MU-3-B MU-3B
C-2-A MU-4 MU-4
C-2-B MU-5-A MU-5A
C-2-B-1 MU-5-B MU-5B
  MU-6A MU-6A
C-2-C MU-6B MU-6B
  MU-7A MU-7A
C-3-A MU-7B MU-7B
  MU-8A MU-8A
C-3-B MU-8B MU-8B
  MU-9A MU-9A
C-3-C MU-9B MU-9B
CR MU-10 MU-10
W-0 MU-11 MU-11
W-1 MU-12 MU-12
W-2 MU-13 MU-13
W-3 MU-14 MU-14
SP-1/DC MU-15 MU-1/DC
SP-2/DC MU-16 MU-2/DC
C-2-A/DC MU-17 MU-4/DC
C-2-B/DC MU-18 MU-5A/DC
C-2-C/DC MU-19 MU-6B/DC
C-3-B/DC MU-20 MU-8B/DC
C-3-C/DC MU-21 MU-9B/DC
CR-DC MU-22 MU-10/DC
SP-2/DC MU-23 MU-2/CAP
C-2-A/CAP MU-24 MU-4/CAP
C-2-A/CHC MU-25 MU-4/CHC
C-2-A/CAP/CHC MU-26 MU-4/CAP/CHC
C-2-A/NO MU-27 MU-4/NO
C-3-A/FT MU-28 MU-7B/FT
CR/FT MU-29 MU-10/FT
C-2-A/RC RC-2 MU-4/RC
C-2-B/RC RC-3 MU-5A/RC
C-4 MU-30 MU-15

Subtitle H - Neighborhood Mixed-Use (NMU)

1958 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
C-1/MW NC-1 NMU-3A/MW
C-2-A/TK NC-2 NMU-4/TK
C-2-A/CP NC-3 NMU-4/CP
C-2-A/WP NC-4 NMU-4/WP
C-2-B/WP NC-5 NMU-5A/WP
C-3-A/ES NC-6 NMU-7B/ES
C-2-A/GA NC-7 NMU-4/GA
C-3-A/GA NC-8 NMU-7B/GA
C-2-A/HS-H NC-9 NMU-4/H-H
C-2-B/HS-H NC-10 NMU-5A/H-H
C-2-C/HS-H NC-11 NMU-6B/H-H
C-3-A/HS-H NC-12 NMU-7B/H-H
C-3-B/HS-H NC-13 NMU-8B/H-H
C-2-A/HS-A NC-14 NMU-4/H-A
C-3-A/HS-A NC-15 NMU-7B/H-A
C-2-A/HS-R NC-16 NMU-4/H-R
C-2-B/HS-R NC-17 NMU-5A/H-R

Subtitle I - Downtown Zones

ZR58 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
DD/R-5-B RA-2 RA-2
DD/R-5-E, DD/Chinatown/R-5-E D-1-R D-1-R
SP-2 D-2 D-2
HR/C-3-C/TDR, C-3-C/Downtown East TDR D-3 D-3
C-3-C/non-TDR (exp. Downtown), HR/C-3-C/non-TDR, HR/SP-2 D-4 D-4
DD/C-2-C/HPA, DD/C-2-C/MVT/HPA D-4-R D-4-R
CG/C-3-C/TDR, C-3-C/TDR other than Downtown East, DD/C-3-C/non HPA D-5 D-5
DD/C-3-C/HPA, DD/C-3-C/MVT/HPA D-5-R D-5-R
C-4/non-HPA (exp. Downtown) D-6 D-6
DD/C-4/HPA D-6-R D-6-R
DD/C-4/non HPA, DD/C-5 D-7 D-7
C-3-C/non TDR, Federal Property in Federal Triangle South D-8 D-8

Subtitle J - Production, Distribution, Repair (PDR) (Industrial)

1958 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
CM-1 and CM-1/LO PDR-1 PDR-1
CM-2 PDR-2 PDR-2
CM-3 PDR-3 PDR-3
M PDR-4 PDR-4
CM-1/CAP PDR-5 PDR-1/CAP
CM-1/FT PDR-6 PDR-1/FT
M/FT PDR-7 PDR-4/FT

Subtitle K - Special Purpose Zones

1958 Zone/Overlay ZR16 (Original) ZR16 Zone/Overlay (Amended)
SEFC/CR SEFC-1 SEFC-1
SEFC/R-5-E SEFC-2 SEFC-2
SEFC/R-5-D SEFC-3 SEFC-3
SEFC/W-0 SEFC-4 SEFC-4
USN USN USN
HE-1 HE-1 HE-1
HE-2 HE-2 HE-2
HE-3 HE-3 HE-3
HE-4 HE-4 HE-4
CG/R-5-E CG-1 CG-1
CG/C-2-C CG-2 CG-2
CG/C-3-C CG-3 CG-3
CG/CR CG-4 CG-4
CG/W-2 CG-5 CG-5
CG/W-1 CG-6 CG-6
CG/W-3 CG-7 CG-7
StE-1 StE-1 StE-1
StE-2 StE-2 StE-2
StE-3 StE-3 StE-3
StE-4 StE-4 StE-4
StE-5 StE-5 StE-5
StE-6 StE-6 StE-6
StE-7 StE-7 StE-7
StE-8 StE-8 StE-8
StE-9 StE-9 StE-9
StE-10 StE-10 StE-10
StE-11 StE-11 StE-11
StE-12 StE-12 StE-12
StE-13 StE-13 StE-13
StE-14 StE-14 StE-14
StE-15 StE-15 StE-15
StE-16 StE-16 StE-16
StE-17 StE-17 StE-17
StE-18 StE-18 StE-18
StE-19 StE-19 StE-19
C-2-A/ARTS ARTS-1 ARTS-1
C-2-B/ARTS ARTS-2 ARTS-2
C-3-A/ARTS ARTS-3 ARTS-3
CR/ARTS ARTS-4 ARTS-4
WR-1 WR-1 WR-1
WR-2 WR-2 WR-2
WR-3 WR-3 WR-3
WR-4 WR-4 WR-4
WR-5 WR-5 WR-5
WR-6 WR-6 WR-6
WR-7 WR-7 WR-7
WR-8 WR-8 WR-8
New Zone WR-9 WR-9
New Zone WR-10 WR-10
New Zone WR-11 WR-11
New Zone WR-12 WR-12
New Zone WR-13 WR-13
New Zone WR-14 WR-14
New Zone WR-15 WR-15
New Zone BF-1A BF-1A
New Zone BF-1B BF-1B
New Zone BF-2A BF-2A
New Zone BF-2B BF-2B
New Zone NHR NHR