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SOUTHWEST GAS CORPORATION

Active across 2 states · 23 total residential events · 20 industrial properties within ~1 mi of their projects

Activity 2021-01-062025-09-26

States

2

Total Events

23

Units Est.

Lots Tracked

Earliest

2021

Latest

2025

Cross-State Portfolio

One row per filer-name variant; states this developer has appeared in.

Filer NameStatesState ListEventsUnits Est.EarliestLatest
SOUTHWEST GAS CORPORATION2
AZCA
232021-01-062025-09-26

Per-State Breakdown

Event counts segmented by residential sector. Market-rate is the strongest industrial-demand signal.

StateFiler NameEventsMarket-RateLIHTCMixed-Inc.Subdiv.MPCSeniorDominantEarliestLatest
AZ
SOUTHWEST GAS CORPORATION
221002010residential_subdivision2021-01-062025-09-26
CA
SOUTHWEST GAS CORPORATION
1000100residential_subdivision2021-05-122021-05-12

Top Industrial Properties Within ~5 mi

Industrial assets in this developer's market area (1/3/5 mi rings). Click to view the full property profile.

Property IDWithin 1 miWithin 3 miDistinct DevsUnits Est.Latest NOI
az_pima:21501005G96442025-11-04
az_pima:21501009096442025-11-04
az_pima:21501007F96342025-11-04
az_pima:21501007G86542025-11-04
az_pima:21613114065532025-12-12
az_pima:21613122065532025-12-12
az_pima:10309068B61952025-11-17
az_pima:21612016065632025-12-12
az_pima:21612017065632025-12-12
az_pima:10113280052342025-11-17

Recent Events

Most-recent 20 permit / NPDES / TDLR events attributed to this developer.

DateSourceTypeProjectLocationApplicantLink
2026-03-24epa_npdes_cgpstormwater_noi
SI LP (2026) ATLAS 0118 EAST SIDE GROVES REPLACEMENT WR5089351
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-12-03epa_npdes_cgpstormwater_noi
51ST ST & IRONWOOD DR
YUMA, AZ
Southwest Gas Corporation
view
2025-10-17epa_npdes_cgpstormwater_noi
PIPELINE REPLACEMENT - 80TH AND UNIVERSITY
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-09-30epa_npdes_cgpstormwater_noi
HOUGHTON RD - 22ND ST TO ESCALANTE RD
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-09-26epa_npdes_cgpstormwater_noi
PAPAGO RD - SAGUARO TO AMARILLO VALLEY
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-09-17epa_npdes_cgpstormwater_noi
SW GAS BIRCH RD - HP MAIN REPLACEMENT PHASE 1
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-09-02epa_npdes_cgpstormwater_noi
SI HP (2025) - KLECK RD AND 11 MILE CORNER RD PHASE II
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-08-29epa_npdes_cgpstormwater_noi
SW GAS - GAS LINE PROJECT - COUNTRY CLUB RD
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-08-29epa_npdes_cgpstormwater_noi
STL LP – GLENN ST, CHERRY AVE TO ALVERNON WAY 4730816
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-08-29epa_npdes_cgpstormwater_noi
SI HP (2025) - MIDTOWN PHASE 10 - DRACHMAN ST WR 4933115
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-08-11epa_npdes_cgpstormwater_noi
STL LP – GLENN ST, CHERRY AVE TO ALVERNON WAY 4730816
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-05-09epa_npdes_cgpstormwater_noi
SI HP (2025) - MIDTOWN PHASE 10 - DRACHMAN ST WR 4933115
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-05-05epa_npdes_cgpstormwater_noi
SW GAS - GAS LINE PROJECT - COUNTRY CLUB RD
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-04-04epa_npdes_cgpstormwater_noi
SI LP (2025) - PIMA RIVER CROSSING MAIN REPLACEMENT WR4857701
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-03-31epa_npdes_cgpstormwater_noi
HOUGHTON RD - 22ND ST TO ESCALANTE RD
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-02-07epa_npdes_cgpstormwater_noi
WR # 4355834 HPTW-DOUGLAS RANCH TAP AND MAIN CACTUS RD ALIGNMENT
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-01-17epa_npdes_cgpstormwater_noi
WR: 4082698 HPTW – FP332 CSYS 3” TRANSMISSION REPL PHASE 2
UNKNOWN, AZ
Southwest Gas Corporation
view
2025-01-10epa_npdes_cgpstormwater_noi
SI LP (2025) - MAIN ST 4 MAIN AND SERVICE REPLACEMENT WR 4679097
UNKNOWN, AZ
Southwest Gas Corporation
view
2024-10-16epa_npdes_cgpstormwater_noi
FN HP/LP - HOUGHTON RD: ESCALANTE TO IRVINGTON RD WR 4351255
UNKNOWN, AZ
Southwest Gas Corporation
view
2024-08-07epa_npdes_cgpstormwater_noi
SI HP (2024) - PEART ROAD - ARROYO TRAIL TO COTTONWOOD LANE
UNKNOWN, AZ
Southwest Gas Corporation
view

Data: residential pipeline MVs (TDHCA, EMMA, plats, NPDES NOIs) and property work events. Filer-name variants are collapsed by canonical slug. JSON: /api/developer/southwest-gas-corporation