COMPANY RECORD · BOULDER, CO
L Nothhaft & Son Inc — permit history in Boulder, CO
L Nothhaft & Son Inc appears on 62 Boulder permit records from 2015 through 2026, most often fire protection (98.4% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Fire protection | 61 | 98.4% |
| Plumbing | 1 | 1.6% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 9 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 7 |
| 2026 | 2 |
Busiest year on record: 2018, with 9 permits. One project can account for several filings, so read this as filing activity rather than workload.
Where they worked
| Address in source | Most recent permit |
|---|---|
| 1600 COMMERCE ST | 2026-08-18 |
| 198 MORNING GLORY DR | 2025-10-14 |
| 1775 38TH ST | 2025-08-29 |
| 3122 STERLING CIR | 2025-06-10 |
| 4780 PEARL EAST CIR | 2025-05-14 |
| 4999 PEARL EAST CIR | 2023-10-13 |
| 1688 CONESTOGA ST | 2023-05-26 |
| 1750 CONESTOGA ST | 2023-03-07 |
| 2865 WILDERNESS PL | 2022-09-09 |
| 5555 AIRPORT BLVD | 2022-07-25 |
| 1735 RANGE ST | 2021-08-13 |
| 6210 SPINE RD | 2018-08-08 |
| 5555 AIRPORT BL | 2018-03-15 |
| 5550 AIRPORT BLVD | 2017-01-12 |
21 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $426,311, median $15,740. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
62 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| FIR2026-00289 | 2026-08-18 | Fire protection | 1600 COMMERCE ST | Replace existing fire riser in AD-O Building after old Fire Line is replaced | $3,000 |
| FIR2026-00211 | 2026-06-22 | Fire protection | 1600 COMMERCE ST | Install a new wet pipe fire sprinkler system off of the existing sprinkler system below a 511 sq.ft. mezzanine. | $8,500 |
| FIR2025-00418 | 2025-11-05 | Fire protection | 1600 COMMERCE ST | Cut into the existing 4" main in the stairwell & Install a new 4" pup piece to serve as the new branch line connection point for the supply to the new electrical Room. Install 1 ne | $6,500 |
| FIR2025-00380 | 2025-10-14 | Fire protection | 198 MORNING GLORY DR | Replace Fire Sprinkler System (FSN13) | $168,698 |
| FIR2025-00372 | 2025-10-08 | Fire protection | 1600 COMMERCE ST | Demo 1 pendent sprinkler under duct that is no longer needed under duct work. Replace 6 old S.R. brass uprights 165° with 6 new S.R. brass uprights 286° (FSR13) | $3,500 |
| FIR2025-00324 | 2025-08-29 | Fire protection | 1775 38TH ST | Demo 16 existing G5-56 concealers on the wet system. Install 16 new brass uprights for temporary coverage. Install 21 new G5-56 concealers for new ceiling layout and 3 new dry pend | $11,030 |
| FIR2025-00220 | 2025-06-10 | Fire protection | 3122 STERLING CIR | Remodel Chemistry Room on 2nd Floor (FSR13) | $16,000 |
| FIR2025-00169 | 2025-05-14 | Fire protection | 4780 PEARL EAST CIR | Remainder of Foam Deluge system submittal in service yard and wet sprinklers in Utility Building (FSN13) | $16,790 |
| FIR2025-00153 | 2025-04-29 | Fire protection | 3122 STERLING CIR | 9 temporary upright sprinklers on a Scope of Work Letter. (FSR13) | $500 |
| FIR2024-00432 | 2024-11-13 | Fire protection | 4780 PEARL EAST CIR | Main Building Permit: 1000 gpm fire pump, Pre-Action System, three Wet Systems, 680 sprinklers, (FSN13) | $426,311 |
| FIR2024-00408 | 2024-10-09 | Fire protection | 1600 COMMERCE ST | Install 9 new K8.0 brass uprights and 4 uprights under duct. (FSR13) | $14,300 |
| FIR2024-00204 | 2024-05-17 | Fire protection | 1600 COMMERCE ST | T.I.-Install a new Waveguide feed-though provided by ball and install 1 new sidewall in the Ante Room. (FSR13) | $675 |
| FIR2024-00216 | 2024-05-14 | Fire protection | 3122 STERLING CIR | Replace Recalled Sprinklers (FSR13) | $3,000 |
| FIR2024-00063 | 2024-03-01 | Fire protection | 3122 STERLING CIR | Additions / alterations to the existing NFPA 13 wet pipe fire sprinkler system to accommodate a tenant remodel for laboratories (OHII hazard) on the second floor. See BLD-NRE2023-0 | $84,636 |
| FIR2023-00370 | 2023-10-13 | Fire protection | 4999 PEARL EAST CIR | Additions / alterations to the existing NFPA 13 wet pipe fire sprinkler system to accommodate a new tenant on the first floor. Replace control valves for the second and third floor | $203,100 |
| FIR2023-00207 | 2023-06-23 | Fire protection | 1600 COMMERCE ST | Demo 27 existing K8.0 pendent fire sprinklers and Install 29 new K8.0 chrome pendent type sprinklers. BALL AEROSPACE BAKEOUT CHAMBER (OFFICES) (FSR13) Thank you. | $22,000 |
| FIR2023-00172 | 2023-05-26 | Fire protection | 1688 CONESTOGA ST | Add and relocate sprinkler heads based on wall layout changes. See BLD-NRE2023-00022 for general building permit. See FIR2023-00206 for fire alarm permit. BALL AEROSPACE CO 6 MISSI | $8,600 |
| FIR2023-00056 | 2023-03-21 | Fire protection | 1600 COMMERCE ST | Install 14 new chrome recessed type fire sprinklers after new ceiling has been installed. Existing conference rooms are not sprinklered. Adding 2 new 2?" floor control valves to s | $8,700 |
| FIR2023-00062 | 2023-03-07 | Fire protection | 1750 CONESTOGA ST | Relocate and replace 12 new chrome K 8.0 type fire sprinklers for new ceiling layout. See BLD-NRE2022-00183 for general building permit. See FIR2023-00471 for fire alarm permit. BA | $5,300 |
| FIR2022-00359 | 2022-10-21 | Fire protection | 1600 COMMERCE ST | Additions / alterations to the existing wet pipe fire sprinkler system to accommodate a tenant finish. Install 19 K8.0 chrome recessed type fire sprinklers throughout the Dimension | $17,500 |
| FIR2022-00341 | 2022-10-19 | Fire protection | 1600 COMMERCE ST | Alter existing fire sprinkler system located in the roof/ceiling of the SLC of the FI Building and install a new wet pipe fire sprinkler system from the existing fire sprinkler sys | $13,065 |
| FIR2022-00288 | 2022-09-09 | Fire protection | 2865 WILDERNESS PL | Demolition the existing dry pipe fire sprinkler system. Replace with a new wet pipe fire sprinkler system. Combination of Light Hazard and Ordinary Hazard Group 2 Conversion to a w | $117,450 |
| FIR2022-00238 | 2022-07-25 | Fire protection | 5555 AIRPORT BLVD | Remove existing wet pipe drops to pendent heads and install a single interlock preaction system. See BLD-NRE2022-00042 for general building permit. See FIR2022-00269 for fire alarm | $63,600 |
| FIR2022-00219 | 2022-07-15 | Fire protection | 1775 38TH ST | Additions / alterations to the existing wet pipe fire sprinkler system to accommodate a remodel on the first and second floors. See BLD-NRE2022-00019 for general building permit. | $41,700 |
| FIR2022-00051 | 2022-03-31 | Fire protection | 1600 COMMERCE ST | Install sprinkler system in new paint booth and walk-in oven per NFPA 13 and NFPA 33 (FSR13) | $11,200 |
| FIR2021-00276 | 2021-08-13 | Fire protection | 1735 RANGE ST | The scope of this project consists of relocating 4 sprinklers and offsetting 3 branch lines to accommodate new HVAC ductwork. BALL AEROSPACE RA-7 LN2 | $5,225 |
| FIR2020-00440 | 2021-01-26 | Fire protection | 1600 COMMERCE ST | Install new wet pipe fire sprinkler system to provide protection to an existing lab area. No general building permit in evidence at the time of approval. BALL FM Building | $21,300 |
| FIR2021-00001 | 2021-01-08 | Fire protection | 1600 COMMERCE ST | Add 4 pendent type heads in the Paint Booth. Add 1 sidewall head in the duck and 1 sidewall head below Damper. Remove Existing sprinklers and add 21 new K=8.0 Brass Uprights. See B | $16,500 |
| FIR2020-00424 | 2020-11-24 | Fire protection | 1735 RANGE ST | Install new a double interlock preaction system to protect new clean tent area, rework the existing wet pipe system to remove all wet pipe in new clean tent and relocate/add heads | $28,300 |
| FIR2020-00328 | 2020-09-10 | Fire protection | 5555 AIRPORT BLVD | Replace 6 existing pendent sprinkler heads and add two uprights below new storage tanks. Project is designed per FM Global Data Sheet 7-32 table 2.4.3. See BLD-NRE2020-00088 for ge | $13,800 |
| FIR2020-00116 | 2020-05-28 | Fire protection | 1600 COMMERCE ST | Demo the existing wet sprinkler and piping in the space and install a new pre-action type system with Galv Sch #40 downstream of the dry valve. Add new black Sch #10 & 40 to resupp | $42,400 |
| FIR2020-00086 | 2020-03-17 | Fire protection | 5555 AIRPORT BLVD | Install a new Vapor Foam Suppression system in the existing Agilent Tank Farm. | $240,000 |
| FIR2020-00073 | 2020-03-12 | Fire protection | 5555 AIRPORT BLVD | This submittal is for the monitoring & control of a foam-system. The hazard monitored for this foam system will be flammable liquid acetontrile (ACN). There will be Class 1 Div 1 | $7,750 |
| FIR2020-00062 | 2020-02-21 | Fire protection | 1600 COMMERCE ST | L. Nothhaft & Son shall modify the existing preaction fire sprinkler system located at Ball Aerospace FA-Highbay for the new rooms and walls per the requirements of NFPA 13, 2016 a | $45,570 |
| FIR2020-00034 | 2020-01-22 | Fire protection | 1750 CONESTOGA ST | Relocation of 3 sprinklers and addition of 2 sprinklers to provide full coverage for a new clean room. | $7,990 |
| FIR2019-00471 | 2020-01-02 | Fire protection | 1600 COMMERCE ST | Install a new double interlock preaction fire sprinkler system at Ball Aerospace FA Bldg. Room 195 and clean tents per the requirements of NFPA 13 2016 edition and FM. Remove the | $24,500 |
| FIR2019-00312 | 2019-08-22 | Fire protection | 5555 AIRPORT BLVD | Add 1 ELO pendent sprinkler from existing overhead system. | $3,800 |
| FIR2019-00202 | 2019-06-25 | Fire protection | 1600 COMMERCE ST | The existing wet pipe fire sprinkler system shall be un-installed and a new wet pipe system shall be installed in its place. This is phase 2 of the third floor, phase one was comp | $95,750 |
| FIR2019-00057 | 2019-02-22 | Fire protection | 1600 COMMERCE ST | Double interlock preaction (dry) system Ball Aeorspace Altitude Test Chamber using FM guidelines. | $24,000 |
| FIR2018-00274 | 2018-10-29 | Fire protection | 1600 COMMERCE ST | Work to be done on the 3rd floor. Remove existing piping and sprinklers throughout phase 1 area and install new chrome concealer type sprinklers as required for new floor and ceili | $15,480 |
| FIR2018-00257 | 2018-10-12 | Fire protection | 1600 COMMERCE ST | Fire Sprinkler System in Highbay Cleanroom | $55,560 |
| FIR2018-00175 | 2018-08-22 | Fire protection | 1600 COMMERCE ST | Fire Sprinklers in EMI Chamber at FA Building | $32,700 |
| FIR2018-00174 | 2018-08-08 | Fire protection | 6210 SPINE RD | Relocate and replace 4 existing sprinklers to match existing as required at the new suspended ceiling. Add 2 new pendent type sprinklers for adequate coverage. See PMT2017-05320 fo | $900 |
| FIR2018-00097 | 2018-06-18 | Fire protection | 5555 AIRPORT BLVD | L. Nothhaft and Son, Inc. shall add 5 pendent sprinkler heads and relocate 77 pendent sprinkler heads to an existing wet pipe sprinkler system per NFPA 13, 2013 edition. See PMT2 | $19,100 |
| FIR2018-00064 | 2018-05-11 | Fire protection | 1600 COMMERCE ST | New Wet Pipe Sprinkler system in Mechnical Penthouse | $49,370 |
| PMT2017-04998-PLB | 2018-03-15 | Plumbing | 5555 AIRPORT BL | FS- Application for adding/relocating sprinkler heads to accommodate small tenant improvement. See PMT2017-04370 for general building permit. AGILENT GLASS WASHER | $0 |
| PMT2017-04998-FIR | 2018-03-15 | Fire protection | 5555 AIRPORT BL | FS- Application for adding/relocating sprinkler heads to accommodate small tenant improvement. See PMT2017-04370 for general building permit. AGILENT GLASS WASHER | $4,400 |
| PMT2018-00467-FIR | 2018-02-08 | Fire protection | 6210 SPINE RD | FS - Relocate and replace 11 and add 3 pendant sprinkler heads in two different areas of the building to accommodate minor tenant improvement. See PMT2017-05320 for general buildin | $5,100 |
| PMT2017-02733-FIR | 2017-11-17 | Fire protection | 1600 COMMERCE ST | FS - Modifications/additions to existing sprinkler system. See PMT 2017-01268 for general building permit. BALL AEROSPACE FISHER FT3 NORTH building. | $28,300 |
| PMT2017-00053-FIR | 2017-01-12 | Fire protection | 5550 AIRPORT BLVD | FS - ES - LOCKER ROOMS | $7,500 |
Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.
Source and limits
Public Boulder permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →