Updated: May 27, 2026
Location and Projects
Address
201 S Central Ave, Duluth, MN, 55807
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1 LLC Photos
1 Plumber
Single Family Home - New Construction and Development
From BuildZoom: 1 LLC, 201 S Central Ave, Duluth, MN (Employee: Alan L. Nelson) holds a Renovation license and 10 other licenses according to the Environmental Protection Agency license board.
Their BuildZoom score of 118 ranks in the top 1% of 77,973 Minnesota licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring 1 LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
1 LLC Services
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New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Restaurant New Construction
Retail New Construction
Office Building New Constru...
Industrial New Construction
Hotel New Construction
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1 LLC Duluth
Quality
118
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
1 LLC has a BuildZoom score of 118, which places them above 99% of 77,973 contractors in Minnesota.
Activity
|
57 projects
|
2025 |
|
289 projects
|
2024 |
|
200 projects
|
2023 |
Our building permit records indicate that 1 LLC has worked on at least
546.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
13 projects
|
Home Additions |
|
9 projects
|
New Constructions |
|
4 projects
|
Commercial Renovations |
|
260 projects
|
Plumbing projects |
|
5 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that 1 LLC mostly works on
plumbing project
and home addition
projects.
Pricing
|
250 projects
|
< $5k |
|
237 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
The typical size of their permits is approximately $5,000. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior remodel of existing living space to create new master suite. existing living room to be converted into master bedroom adjacent open room to become new master bathroom existing mechanical room reconfigured into new mechanical and laundry rooms and existing closet converted into sauna. includes new framing insulation finishes plumbing mechanical and electrical within existing f... see more
Valuation:
$68,000
Permit #:
CSBLDGR-2510-0726
Status:
issued
Fee:
$1,847
Permit Type:
N/A
Building Type:
N/A
Installed devices and lights inside garage that another contractor roughed-in. homeowner called the contractor many times to come finish the job and got tired of waiting so had us finish the job
Valuation:
N/A
Permit #:
ELE2502-06978
Status:
final
Fee:
$36
Permit Type:
One-family dwelling
Building Type:
N/A
Bring exiting driveway on the north side of 8200 grand ave south back to grade. there is currently a 22 inch swail that was cut in years ago to create a low loading dock
Valuation:
N/A
Permit #:
PRDR202502023
Status:
issued
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
-replaced existing obsolete 100 amp load center with a new 100 amp load center -updated the grounding and bonding -installed surge protective device
Valuation:
N/A
Permit #:
ELE2502-07224
Status:
final
Fee:
$61
Permit Type:
One-family dwelling
Building Type:
N/A
Power company is adding or moving a pole and will be installing a meter pedestal on the pole. we will be trenching from the pole to the house with an underground wire and updating the grounding and bonding
Valuation:
N/A
Permit #:
ELE2405-00172
Status:
final
Fee:
$48
Permit Type:
One-family dwelling
Building Type:
N/A
-install 100 amp meter-main with 8 space load center. (code) -install new 100 amp 30 space electrical panel -install/update grounding and bonding -change out fuse box in garage to 8 space panel -whole house surge protection. (code) -add/install exterior gfci receptacle near electric meter
Valuation:
N/A
Permit #:
ELE2308-11843
Status:
final
Fee:
$105
Permit Type:
One-family dwelling
Building Type:
N/A
-mn power reconnect to home that the power has been shut off for over a year -pull permit as a temp service -need power back on for construction -there will be future inspections as home is being remodeled -most of the existing circuits will be disconnected
Valuation:
N/A
Permit #:
ELE2307-04638
Status:
final
Fee:
$69
Permit Type:
One-family dwelling
Building Type:
N/A
Plumbing updates -replace exposed underground cast iron and pvc piping. -move stack from the upstairs toilet closer to wall in order to make room for a new shower. -rough in a new trap for the new shower location -replace drains for the shower toilet sink and laundry in order to meet the current plumbing code. -add vent for laundry drain
Valuation:
$2,000
Permit #:
BPLUM2103-008
Status:
final
Fee:
$90
Permit Type:
N/A
Building Type:
N/A
Repair electrical service. (storm damage) -install new 100 amp meter main -install new feeds from the meter main to both panels inside the house -remove (2) disconnects -install new service mast -update all grounding and bonding in the house
Valuation:
N/A
Permit #:
ELE2305-02119
Status:
final
Fee:
$48
Permit Type:
One-family dwelling
Building Type:
N/A
Improvements to existing retail space
Valuation:
$500,000
Permit #:
BBLDG2305-096
Status:
triage
Fee:
$7,867
Permit Type:
Alter no change o...
Building Type:
N/A
(1) 200 amp meter and finish pipe and wires to panel upstairs -install (1) 100 amp meter and pipe and addition panel behind meter (wire will be stubbed up in correct location) -finish grounding to existing ground rods
Valuation:
N/A
Permit #:
ELE2308-11963
Status:
final
Fee:
$36
Permit Type:
One-family dwelling
Building Type:
N/A
Installation of emergency standby generator and automatic transfer switch
Valuation:
N/A
Permit #:
ELE2501-04879
Status:
final
Fee:
$108
Permit Type:
Non-dwelling
Building Type:
N/A
Vacation dwelling unit accessory vdu - 1 or 2 family dwelling
2025-04-22
Applying for a vacation dwelling unit permit for 1315 minnesota ave
Valuation:
N/A
Permit #:
CSVDU-2502-0005
Status:
issued
Fee:
$306
Permit Type:
N/A
Building Type:
N/A
Customer is building a new garage and the current underground service wire is in the way. power company is setting a new pole with a meter pedestal
Valuation:
N/A
Permit #:
ELE2406-00211
Status:
final
Fee:
$52
Permit Type:
One-family dwelling
Building Type:
N/A
Has a mn power fix-it ticket to replace a damaged meter base
Valuation:
N/A
Permit #:
ELE2504-04216
Status:
final
Fee:
$36
Permit Type:
One-family dwelling
Building Type:
N/A
Electrical for existing garage with living space
Valuation:
N/A
Permit #:
ELE2411-01240
Status:
final
Fee:
$156
Permit Type:
One-family dwelling
Building Type:
N/A
Hvac (air conditioner/fan/misc work) - 1 or 2 family dwelling
2025-05-01
Air handler and air conditioner replacement
Valuation:
$10,000
Permit #:
CSHVACR-2505-0323
Status:
issued
Fee:
$71
Permit Type:
N/A
Building Type:
N/A
Plumbing water heater replacement - commercial & 3+ multi-family
2025-02-25
Replace 2 existing 60 gallon water heaters
Valuation:
$15,000
Permit #:
CSPLUMC-2502-0025
Status:
issued
Fee:
$381
Permit Type:
N/A
Building Type:
N/A
Wired connections in sewer injector control box and at electrical panel only -injector pump -alarm -float note: underground wires were already installed underground
Valuation:
N/A
Permit #:
ELE2302-06060
Status:
final
Fee:
$83
Permit Type:
One-family dwelling
Building Type:
N/A
Changing out the existing 100 amp meter with a 100 amp meter-main and relocating from house to garage -new 100 amp feeder to house -new 30 amp feeder to garage
Valuation:
N/A
Permit #:
ELE2308-07857
Status:
final
Fee:
$54
Permit Type:
One-family dwelling
Building Type:
N/A
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Verified License
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1 LLC License info
Verified License
| License # | NAT-F184897-2 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for 1 LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | BC736247 |
| Status | Active |
| State | Minnesota |
| Type | Residential Contractors |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for 1 LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | R1009 |
| Status | Active |
| City | Duluth |
| Type | Elect Cont |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of 1 LLC with the The City of Duluth, MN
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | R1143 |
| Status | Active |
| City | Duluth |
| Type | Bldg Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of 1 LLC with the The City of Duluth, MN
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | R371 |
| Status | Active |
| City | Duluth |
| Type | Plumb & Hvac Con |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of 1 LLC with the The City of Duluth, MN
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | EA780597 |
| Status | Inactive |
| State | Minnesota |
| Type | Electrical |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for 1 LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | NAT-F184897-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for 1 LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MB005434 |
| Status | Inactive |
| State | Minnesota |
| Type | Mechanical Contractor Bond |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for 1 LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PC648787 |
| Status | Inactive |
| State | Minnesota |
| Type | Plumbing |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for 1 LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 40915 |
| Status | Inactive |
| State | North Dakota |
| Type | Contractor |
- According to the North Dakota Secretary of State, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for 1 LLC at the North Dakota Secretary of State.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PM65119 |
| Status | Inactive |
| State | Minnesota |
| Type | Master Plumber |
- According to the Minnesota Department of Labor & Industry, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for 1 LLC at the Minnesota Department of Labor & Industry.
This is a sample of licensing data; click here to access a complete history.
118
BuildZoom Score
1.4K
Permits
- Building permit records show that 1 LLC has worked on 1410 permitted projects.
1 LLC Employees
AN
Alan L. Nelson