COMPANY RECORD · BOULDER, CO
Sandbox Solar — permit history in Boulder, CO
Sandbox Solar appears on 68 Boulder permit records from 2020 through 2026, most often electrical (94.1% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Electrical | 64 | 94.1% |
| Mechanical / HVAC | 4 | 5.9% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 44 |
| 2026 | 17 |
Busiest year on record: 2025, with 44 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 |
|---|---|
| 890 IRIS AVE | 2026-07-20 |
| 4870 6TH ST | 2026-07-16 |
| 1115 BEREA DR | 2026-07-14 |
| 4009 SAINT PETERSBURG ST | 2026-07-10 |
| 2136 6TH ST | 2026-06-26 |
| 1800 OAK AVE | 2026-06-26 |
| 4021 SAINT PETERSBURG ST | 2026-06-02 |
| 2760 ILIFF ST | 2026-04-30 |
| 5555 RACQUET CT | 2026-04-29 |
| 1110 FAIRFIELD DR | 2026-04-29 |
| 1065 8TH ST | 2026-03-25 |
| 3084 PALO PKWY | 2026-03-18 |
| 4882 KELLOGG CIR | 2026-02-23 |
| 5377 WILD DUNES CT | 2026-01-30 |
62 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $6,328 to $138,900, median $15,897. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
68 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| MEC2026-01170 | 2026-07-20 | Mechanical / HVAC | 890 IRIS AVE | Replacing existing 90% gas furnace with 80K duel fuel, 2 ton, heat pump. Electrical to perform main panel upgrade and install new circuit for heat pump system. **PLEASE NOTE: APPL | $19,633 |
| ELE2026-00700 | 2026-07-16 | Electrical | 4870 6TH ST | Install 26 Maxeon 410W solar panels (10.66kW) | $42,888 |
| ELE2026-00637 | 2026-07-14 | Electrical | 1115 BEREA DR | Install a 10.0kWh energy storage system utilizing (1) battery. | $10,841 |
| ELE2026-00636 | 2026-07-10 | Electrical | 4009 SAINT PETERSBURG ST | Install a 10.0kWh energy storage system utilizing (1) battery. | $10,821 |
| ELE2026-00570 | 2026-06-26 | Electrical | 2136 6TH ST | Installation of a power wall 3 battery whole house backup. Battery location will be on NE corner of house near Xcel meter. There is an existing 6.3kW system using 15 panels. | $10,547 |
| MEC2026-01062 | 2026-06-26 | Mechanical / HVAC | 1800 OAK AVE | Replacing existing furnace and AC with new 4 ton, 100K BTU, heat pump system. Electrical is a dedicated 240v, 15A circuit and will need to be supplied via a disconnect box with 15f | $13,682 |
| ELE2026-00492 | 2026-06-02 | Electrical | 4021 SAINT PETERSBURG ST | Install a new 13.5 kWh energy storage system utilizing (1) TESLA POWERWALL 3 with (1) TESLA GATEWAY 3 system controller. | $12,647 |
| ELE2026-00421 | 2026-04-30 | Electrical | 2760 ILIFF ST | Install (2) Enphase 5P batteries and a System controller 3 | $10,790 |
| ELE2026-00259 | 2026-04-29 | Electrical | 5555 RACQUET CT | Install a 112.34kW DC (75kW AC) PV system using (274) 410W modules and upgrade the existing load panel. | $138,900 |
| ELE2026-00420 | 2026-04-29 | Electrical | 1110 FAIRFIELD DR | Installation of a new 13.5kWh Tesla Powerwall 3 to be paired with previously installed system. Customer currently has a 5.44kW system using 340W Hanwha Q-Cells 2 string inverters | $10,284 |
| ELE2026-00194 | 2026-03-25 | Electrical | 1065 8TH ST | -Install 27 Mission Solar 410W panels (11.07kW) + 27IQ8AC series microinverters with 21 panels on upper south-facing roof, as well as 6 panels over the east facing roof over the ga | $23,496 |
| ELE2026-00231 | 2026-03-18 | Electrical | 3084 PALO PKWY | Battery | $10,630 |
| ELE2026-00134 | 2026-02-23 | Electrical | 4882 KELLOGG CIR | Install grid-tied roof mounted (flush) 7.98kW PV solar system consisting of (19) 420W modules with microinverters and (1) 10kWh battery for whole home backup. | $23,810 |
| ELE2025-01303 | 2026-02-06 | Electrical | 3084 PALO PKWY | *5/15/26 Revision - Removed ConnectDER Meter Collar Adapter, Added (N) 40A PV breaker, and PV AC Disco now unfused* Install a 7.14kW grid-tied flush roof mounted PV system utilizi | $13,545 |
| ELE2026-00055 | 2026-01-30 | Electrical | 5377 WILD DUNES CT | Install a 6.3kW grid-tied flush roof mounted PV system utilizing (15) REC420W modules | $11,036 |
| MEC2026-00078 | 2026-01-20 | Mechanical / HVAC | 1065 8TH ST | Replace 18seer, 3 zone heat pump with 3 head units. | $14,153 |
| ELE2026-00019 | 2026-01-13 | Electrical | 3255 OURAY ST | Install a 9.02kW grid tied, flush roof mounted PV system using (22) 410W modules and micro inverters. | $13,769 |
| ELE2025-01310 | 2025-12-19 | Electrical | 540 MARINE ST | Install a enphase energy IQBATTERY-10C-1P-NA for whole home backup, move existing overhead electrical lines to underground. Related permit: HIS2025-00376 | $15,356 |
| ELE2025-01256 | 2025-12-12 | Electrical | 2593 KALMIA AVE | Install a 10.5kW grid tied, flush roof mounted PV system. | $19,440 |
| ELE2025-01302 | 2025-12-09 | Electrical | 3257 OURAY ST | Install a 7.38kW grid tied flush roof mounted PV system, utilizing (18) Mission410W modules | $11,719 |
| ELE2025-01227 | 2025-12-02 | Electrical | 3200 ARNETT ST | Install a 3.28kW grid tied flush roof mounted PV system, utilizing (8) Mission410W | $9,493 |
| ELE2025-01105 | 2025-11-26 | Electrical | 3351 SENTINEL DR | Install a 5.04kW grid tied flush roof mounted PV system, utilizing (12) REC420W modules | $11,633 |
| ELE2025-01271 | 2025-11-26 | Electrical | 1001 GRANT PL | Install a 6.15kW grid-tied, flush roof mounted solar PV system, utilizing (15) 410w modules and micro-inverters. **REVISION 1/20/26-Changed Enphase battery to Tesla battery. | $14,039 |
| ELE2025-01206 | 2025-11-13 | Electrical | 2438 PINE ST | Install a 3.78kW grid-tied, flush roof mounted solar PV system utilizing (9) 420w modules and micro-inverters. ***REVISION 1/27/26-Customer had main panel upgrade through differen | $14,348 |
| ELE2025-01131 | 2025-11-03 | Electrical | 2220 MARIPOSA AVE | Install a 11.48DCkW solar PV system, utilizing 28 410w modules. | $23,387 |
| ELE2025-00830 | 2025-10-30 | Electrical | 552 ARAPAHOE AVE | Install a 4.92kW grid tied flush roof mounted PV system, utilizing (12) Mission410W module and main panel upgrade + (1) Level 2 EV charger. **REVISION - 12/1/2025** Changes to plan | $19,316 |
| ELE2025-01095 | 2025-10-23 | Electrical | 1366 NORTHRIDGE CT | Install a 6.56kW grid tied, flush roof mounted PV system and Tesla Powerwall battery backup system. Additionally upgrade the main service panel with no change to service size. | $31,947 |
| ELE2025-00748 | 2025-10-14 | Electrical | 2136 6TH ST | Install a 6.3kW grid tied flush roof mounted PV system using all black panels and discrete conduit. | $14,479 |
| MEC2025-01627 | 2025-10-03 | Mechanical / HVAC | 265 BELLEVUE DR | Replace [2] residential Gas/Electric ducted mechanical systems with Dual Fuel Heat Pump systems. No change to combustion and ventilation systems. **PLEASE NOTE: APPLICABLE ONLY TO | $18,000 |
| ELE2025-00900 | 2025-10-01 | Electrical | 980 6TH ST | Install a 7.56kw grid tied, flush roof mounted solar PV system with battery backup. 30kWh battery backup | $64,563 |
| ELE2025-00832 | 2025-09-23 | Electrical | 1985 BLUEBELL AVE | Install a 5.88kW Grid-Tied. Flush Roof Mounted and Ballast Mounted PV System to an existing PV system, Utilizing (14) REC420W Modules. | $15,410 |
| ELE2025-00831 | 2025-09-23 | Electrical | 3016 9TH ST | Install a 5.88kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (14) REC420W Modules and installing a 20kWh battery Encharge 5P (AC coupled). *REVISION 12/1/2025* Changes to pl | $31,904 |
| ELE2025-00806 | 2025-09-05 | Electrical | 2610 PINE ST | Install a total of 12.6kW of grid tied, flush roof mounted PV separated into (2) separate systems each with battery backup. | $48,503 |
| ELE2025-00318 | 2025-08-25 | Electrical | 3725 SMUGGLER PL | Install a 5.39kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (14) Jinko385W Modules and EV Charger. **11/12/25 REVISION** Mod config, panel count, mod type, mic type all ch | $12,922 |
| ELE2025-00320 | 2025-08-25 | Electrical | 2870 DARLEY AVE | Install a 11.34kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (27) REC420W Modules and EV Charger. | $23,062 |
| ELE2025-00441 | 2025-07-28 | Electrical | 1200 SUMAC AVE | Install an 8.47kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (22) Jinko385W Modules and EV Charger Enphase 40A EVSE. | $17,747 |
| ELE2025-00345 | 2025-07-07 | Electrical | 2825 19TH ST | *9/10/25 Revision to add new subpanel and changes to PV interconnection.* Install a 8.86kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (23) Jinko385W Modules and EV Charger | $18,724 |
| ELE2025-00555 | 2025-07-03 | Electrical | 3445 23RD ST | Install a 6.55kW grid tied, flush roof mounted pv system. | $37,204 |
| ELE2025-00449 | 2025-06-13 | Electrical | 4009 SAINT PETERSBURG ST | Install a 10.08kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (24) REC420W Modules | $18,528 |
| ELE2025-00443 | 2025-06-04 | Electrical | 2248 NICHOLL ST | Install a 6.16kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (16) Jinko385W Modules | $12,072 |
| ELE2025-00431 | 2025-06-04 | Electrical | 4181 ST CROIX ST | Install an 8.4kW gird tied, flush roof mounted PV system using (2) 420W panels and Enphase Microinverters. | $16,421 |
| ELE2025-00404 | 2025-05-29 | Electrical | 1501 EASY RIDER LN 101 | Install 3.08kW grid tied flush roof mounted PV system. | $9,074 |
| ELE2025-00395 | 2025-05-29 | Electrical | 2614 KALMIA AVE | Install a 5.88kW grid tied flush roof mounted PV system, utilizing (14) 420W modules. Will be upgrading main panel, and service upgrade as well. | $15,798 |
| ELE2025-00319 | 2025-05-27 | Electrical | 3097 OURAY ST | Install a 8.47kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (22) Jinko385W Modules | $15,997 |
| ELE2025-00313 | 2025-05-27 | Electrical | 1115 BEREA DR | Install a 11.94kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (31) MB385W Modules | $20,555 |
| ELE2025-00344 | 2025-05-27 | Electrical | 5628 TABLE TOP CT | Install a 7.70kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (20) Jinko385W Modules | $14,514 |
| ELE2025-00284 | 2025-05-27 | Electrical | 4535 DARLEY AVE | Install a 7.7kW grid-tied, flush roof mounted PV system using (20) 385W panels and Enphase micro inverters. | $31,270 |
| ELE2025-00315 | 2025-05-27 | Electrical | 3030 14TH ST | Install a 12.32kW grid-tied flush roof mounted PV system utilizing (32) 385W modules + ESS using Enphase Encharged 10C 10kWh (DC coupled) for home backup. | $33,321 |
| ELE2025-00312 | 2025-05-27 | Electrical | 795 UTICA AVE | Install a 9.24kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (24) Jinko385W Modules.Upgrade Main Panel. | $20,133 |
| ELE2025-00316 | 2025-05-27 | Electrical | 2085 NORWOOD AVE | Install a 7.14kW Grid-Tied. Flush Roof Mounted PV System, Utilizing (17) REC420W Modules. | $14,978 |
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 →