Grossnickle Construction LLC

Accessory Structure contractor in Frederick County

80
Permits observed
Aug 2026
Most recent permit
1
County worked
12
Towns worked

Permits are pulled before work begins and then inspected by the county. A contractor who files them is working inside a system with an inspector in it, which is what unpermitted work avoids.

What the permits show

Of the permits we observed, 83% are accessory structure work.

Accessory Structure 65
Structural 6
Plumbing 5
Deck & Patio 2
Observed working in
Mount Airy, Frederick, Middletown and 9 more

Recent work

  • Kitchen renovation
    August 2026 · Frederick County

    Replace kitchen stove and sink. Abandon existing fireplace. Add 2x4 nonbearing wall. add one full bath with tub. Reconf…

  • New home construction
    August 2026 · Frederick County

    NEW SFD, partial finished basement with wet-bar,(4) bed, (4) bath, front porch, rear patio, 2 car garage, workshop. Maj…

  • Basement finishing
    August 2026 · Frederick County

    NEW SFD, 3 car garage, finished basement, front porch, rear covered porch-Major grading permit to be applied - PW279017…

  • Structural new construction
    April 2026 · Frederick County

    Demo permit for new home to be built. Original structure destroyed entirely by fire

  • Accessory structure work
    August 2025 · Frederick County

    NEW 31'x32' two-level detached 2 car garage with finished second level including laundry, full bathroom, wet bar, gym, …

  • New garage
    May 2025 · Frederick County

    New 1049 sf detached garage with breezeway.

  • Structural work
    October 2024 · Frederick County

    Demo existing houseNew building 487265

  • New deck
    August 2024 · Frederick County

    New ADU with (2) bed, (2) bath, unfinished basement, 2 car garage, front porch, rear deck**2/3/25; revised due to BOA a…

  • Permit filed
    August 2024 · Frederick County

    New 3-bay farm equipment building, 50' x 63' for tractors and hay equipment.

  • Permit filed
    August 2024 · Frederick County

    Barn for horses 37.7x 74.5 with 8x74.5 overhang on both sides

Licensing

Frederick County does not publish license records with its permit data, so none appear here. That is a gap in the county's published data, not a statement about this contractor.

Towns we observed them working in

Mount AiryFrederickMiddletownJeffersonMonroviaMyersvilleSabillasvilleIjamsvilleKnoxvilleUnion BridgeThurmontAdamstown

We hold permit records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC. Work anywhere else is not missing from this contractor's record, it is outside what we cover.

Permits by year

2023 21
2024 31
2025 16
2026 12

Our records for this contractor's counties begin August 2021. Years before that are not shown because we hold nothing for them, not because nothing happened.

What this page is, and is not

  • Frederick County: 80 permits observed, from records beginning August 2021.

This page shows permits we observed in county records. Our observation is not complete: work done before those dates, in counties we do not cover, or on filings that name no contractor does not appear here. A contractor's real work is almost always greater than what we observed, and absence of a permit on this page does not mean the work was not done or not permitted. We currently hold records for Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Frederick County, Howard County, Prince George's County, and Washington DC; see permit coverage for what that includes.

Common questions

Does a permit record mean this contractor is licensed?
County permit records here do not list a license type for this contractor. That does not mean the contractor is unlicensed; not every county publishes license data with its permits.
Why do some contractors show more permits than others?
Counties began publishing at different times and describe contractors differently, so the number reflects what we observed as much as what the contractor did. It is not a ranking.
What should I still ask for?
Proof of insurance, a written contract, and the license number for the trade being performed. A permit record is a starting point, not a substitute for either.

Other Accessory Structure contractors in Frederick County

DAWN LAWSON
187 permits observed
HAVEPOWER LLC
146 permits observed
THOMAS & THOMAS ELECTRIC LLC
119 permits observed
CLINTON ELECTRIC CO INC
113 permits observed
JAMES M. SCANLON
103 permits observed
WORMALD HOME CONSTRUCTIONS
66 permits observed