Permit history for 312 Walnut St

Cincinnati, OH · 112 permits on file · 2021–2026

112
Permits on file
2021
First permit
2026
Most recent
20
Unique contractors
$8,238,643
Declared value (all work)

Permits on file (112)

Ordered most recent first. Data from the city's open data portal.

OBC CALT
Hvac
Contractor: "MECHANICAL SOLUTIONS PARTNERS"
Status: ISSUED
Apr 20, 2026
Declared cost: $18,500
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: ISSUED
Mar 5, 2026
Declared cost: $2,900
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: ISSUED
Feb 24, 2026
Declared cost: $2,750
OBC CALT
Alteration
Contractor: "CMSQUARED"
Status: ISSUED
Feb 19, 2026
Declared cost: $120,000
OBC CALT
Alteration
Contractor: "CMSQUARED"
Status: ISSUED
Feb 13, 2026
Declared cost: $400,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Nov 13, 2025
Declared cost: $1,500
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Nov 6, 2025
Declared cost: $1,000
OBC CNEW
Plumbing permits
Contractor: "JIM NELTNER PLUMBING CO"
Status: CLOSED
Oct 30, 2025
Declared cost: $1,500
OBC CALTH
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Oct 2, 2025
Declared cost: $13,000
OBC CALT
Fire protection systems
Contractor: "MJ ADAMS ELECTRICAL CONT"
Status: CLOSED
May 23, 2025
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
May 22, 2025
Declared cost: $1,500
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
May 16, 2025
Declared cost: $1,480
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
May 16, 2025
Declared cost: $1,100
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
May 13, 2025
Declared cost: $3,000
OBC CNEW
Plumbing permits
Contractor: "JOHN E CARRIGAN PLUMBING CO"
Status: CLOSED
Apr 30, 2025
Declared cost: $10,000
OBC CALT
Hvac
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Apr 18, 2025
Declared cost: $11,000
OBC CRPL
Plumbing permits
Contractor: "JIM NELTNER PLUMBING CO"
Status: CLOSED
Apr 14, 2025
Declared cost: $175
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Mar 18, 2025
Declared cost: $6,800
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Mar 13, 2025
Declared cost: $35,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Feb 12, 2025
Declared cost: $3,000
OBC CALT
Alteration
Contractor: "CMSQUARED"
Status: CLOSED
Feb 11, 2025
Declared cost: $215,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jan 30, 2025
Declared cost: $2,000
OBC CALT
Alteration
Contractor: "HUNT BUILDERS CORP."
Status: CLOSED
Jan 29, 2025
Declared cost: $115,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Jan 29, 2025
Declared cost: $500
OBC CALT
Hvac
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jan 9, 2025
Declared cost: $900
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Oct 18, 2024
Declared cost: $1,500
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Oct 8, 2024
Declared cost: $17,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Sep 10, 2024
Declared cost: $2,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Sep 6, 2024
Declared cost: $16,500
OBC CALT
Alteration
Contractor: "CMSQUARED"
Status: CLOSED
Sep 5, 2024
Declared cost: $30,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Aug 22, 2024
Declared cost: $16,500
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Aug 22, 2024
Declared cost: $7,600
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Aug 19, 2024
Declared cost: $265,000
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Aug 13, 2024
Declared cost: $58,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jul 24, 2024
Declared cost: $16,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jul 24, 2024
Declared cost: $1,800
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: ISSUED
Jul 24, 2024
Declared cost: $1,800
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Jul 22, 2024
Declared cost: $1,000
OBC CNEW
Plumbing permits
Contractor: "JIM NELTNER PLUMBING CO"
Status: CLOSED
Jul 17, 2024
Declared cost: $15,000
OBC CALT
Alteration
Contractor: "CMSQUARED"
Status: ISSUED
Jul 9, 2024
Declared cost: $2,925,000
OBC CALT
Hvac
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jun 18, 2024
Declared cost: $10,000
OBC CALT
Alteration
Contractor: "CMSQUARED"
Status: CLOSED
Jun 12, 2024
Declared cost: $100,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
May 31, 2024
Declared cost: $750
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Apr 24, 2024
Declared cost: $10,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Feb 5, 2024
Declared cost: $750
OBC CALT
Hvac
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jan 12, 2024
Declared cost: $19,500
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Nov 30, 2023
Declared cost: $750
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Nov 27, 2023
Declared cost: $1,800
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Oct 23, 2023
Declared cost: $29,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
May 3, 2023
Declared cost: $27,220
OBC CNEW
Plumbing permits
Contractor: "JAMES F NELTNER DBA JIM NELTNER PLUMBING CO"
Status: CLOSED
Apr 26, 2023
Declared cost: $4,500
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: ISSUED
Apr 18, 2023
Declared cost: $1,500
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: ISSUED
Apr 18, 2023
Declared cost: $2,000
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Apr 3, 2023
Declared cost: $91,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Mar 30, 2023
Declared cost: $500
OBC CALT
Hvac
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Mar 23, 2023
Declared cost: $7,000
OBC CALT
Fire protection systems
Contractor: "DALMATIAN FIRE INCORPORATED"
Status: CLOSED
Dec 19, 2022
Declared cost: $17,900
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Dec 9, 2022
OBC CNEW
Plumbing permits
Contractor: "TRITON SERVICES"
Status: CLOSED
Nov 8, 2022
Declared cost: $30,000
OBC CALT
Hvac
Contractor: "MID AMERICA CONTRACTING INC"
Status: CLOSED
Oct 20, 2022
Declared cost: $106,000
OBC COMM
Misc. structures
Contractor: "D & M PRO AUDIO"
Status: CLOSED
Aug 16, 2022
Declared cost: $4,200
OBC CALT
Fire protection systems
Contractor: "THOMAS C WALZ / DENIER ELECTRIC"
Status: CLOSED
Jul 29, 2022
Declared cost: $1,800
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Jul 29, 2022
Declared cost: $1,500
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Jul 27, 2022
Declared cost: $2,200
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jul 8, 2022
Declared cost: $2,100
OBC CALTH
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jul 8, 2022
Declared cost: $900
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jul 8, 2022
Declared cost: $2,500
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Jul 5, 2022
Declared cost: $8,000
OBC CALTH
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jun 22, 2022
Declared cost: $17,000
OBC CALTH
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: ISSUED
Jun 9, 2022
Declared cost: $2,000
OBC CALTH
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jun 9, 2022
Declared cost: $4,200
OBC CALT
Fire protection systems
Contractor: "BIZCOM ELECTRIC INC"
Status: CLOSED
Jun 7, 2022
Declared cost: $3,000
OBC CALTH
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
May 27, 2022
Declared cost: $20,582
OBC CALTH
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
May 20, 2022
Declared cost: $50,000
OBC CALT
Alteration
Contractor: "HUNT BUILDERS CORP."
Status: CLOSED
May 20, 2022
Declared cost: $25,760
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
May 17, 2022
Declared cost: $17,050
OBC CALT
Fire protection systems
Contractor: "J II FIRE SYSTEMS INC"
Status: CLOSED
Apr 29, 2022
Declared cost: $10,965
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Apr 28, 2022
Declared cost: $85,000
OBC CALT
Fire protection systems
Contractor: "J II FIRE SYSTEMS INC"
Status: ISSUED
Apr 26, 2022
Declared cost: $10,965
OBC CNEW
Plumbing permits
Contractor: "JIM NELTNER PLUMBING CO"
Status: CLOSED
Apr 22, 2022
Declared cost: $5,000
OBC CALT
Alteration
Contractor: "OSWALD COMPANY INC"
Status: CLOSED
Apr 14, 2022
Declared cost: $541,546
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Apr 13, 2022
Declared cost: $72,500
OBC CALT
Hvac
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Apr 11, 2022
Declared cost: $17,200
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Mar 17, 2022
Declared cost: $2,000
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Mar 7, 2022
Declared cost: $18,000
OBC CNEW
Plumbing permits
Contractor: "JOHN E CARRIGAN PLUMBING CO"
Status: CLOSED
Mar 3, 2022
Declared cost: $4,800
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Feb 16, 2022
Declared cost: $2,800
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Feb 16, 2022
Declared cost: $1,900
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Feb 15, 2022
Declared cost: $1,000
OBC CALTH
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jan 11, 2022
Declared cost: $117,000
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Jan 5, 2022
Declared cost: $4,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Oct 12, 2021
Declared cost: $1,500
OBC CALT
Alteration
Contractor: "HUNT BUILDERS CORP."
Status: CLOSED
Oct 7, 2021
Declared cost: $200,000
OBC CNEW
Plumbing permits
Contractor: "JIM NELTNER PLUMBING CO."
Status: CLOSED
Sep 24, 2021
Declared cost: $4,500
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: ISSUED
Sep 23, 2021
Declared cost: $26,000
OBC COMM
Misc. structures
Contractor: "D & M PRO AUDIO"
Status: CLOSED
Sep 8, 2021
Declared cost: $4,200
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Sep 2, 2021
Declared cost: $1,750
OBC CALT
Fire protection systems
Contractor: "DENIER ELECTRIC"
Status: CLOSED
Sep 2, 2021
Declared cost: $4,250
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Aug 31, 2021
Declared cost: $180,000
OBC CALT
Fire protection systems
Contractor: "RTF FIRE PROTECTION LLC"
Status: CLOSED
Aug 26, 2021
Declared cost: $39,000
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Aug 12, 2021
Declared cost: $9,100
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Aug 4, 2021
Declared cost: $4,900
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Aug 4, 2021
Declared cost: $1,800
OBC CNEW
Plumbing permits
Contractor: "JOHN E CARRIGAN PLUMBING CO"
Status: CLOSED
Jul 28, 2021
Declared cost: $15,000
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
Jul 21, 2021
Declared cost: $107,700
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jul 20, 2021
Declared cost: $55,000
OBC CALT
Alteration
Contractor: "HUNT BUILDERS CORP."
Status: CLOSED
Jul 14, 2021
Declared cost: $1,200,000
OBC CALT
Fire protection systems
Contractor: "ADVANCED FIRE PROTECTION"
Status: CLOSED
Jun 22, 2021
Declared cost: $2,000
OBC CALTH
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
Jun 16, 2021
Declared cost: $322,000
OBC CALT
Alteration
Contractor: "HUNT BUILDERS CORP."
Status: CLOSED
May 17, 2021
Declared cost: $60,000
OBC CALT
Alteration
Contractor: "BAMBECK & VEST ASSOCIATES INC"
Status: CLOSED
May 13, 2021
Declared cost: $136,000
OBC CALT
Hvac
Contractor: "TRITON SERVICES"
Status: CLOSED
May 13, 2021
Declared cost: $4,000

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Disclaimer: Permit data comes from Cincinnati's official open data portal. Records may be incomplete for older permits, and not every home-improvement project requires a permit. Verify with the Cincinnati building department before buying, selling, or planning work.