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Rockville, MD building permits

Data through September 2026 · updated 20 Oct 2026

5,779 building permits were issued in Rockville from October 2024 to September 2026, about 2,890 a year. Plumbing permits lead with 1,636, then electrical (942) and HVAC (880). 57% were for homes. The city's file names contractors, but we don't rate, rank or profile firms from it: these pages show what was built, where and when.

5,779permits issued
2,890a year
57%for homes
82%finished (Oct 2024–Sep 2025 permits)
Sep 2026records through

What gets built here

Plumbing

1,636permits
836last 12 mo

Electrical

942permits
473last 12 mo

HVAC

880permits
451last 12 mo

Fences & walls

301permits
155last 12 mo

Solar

294permits
174last 12 mo

What this page can and can't show

  • ✓Permits the city issued, by kind of work, month and ZIP code.
  • ✓Which permits finished, are still open or expired.
  • ✓Which contractors filed the most permits (volume, not quality).
  • Who does good work. The city's file names contractors, but we don't rate, rank or profile firms from it.
  • How long a permit takes to final. The file has too few final dates.
  • What the job cost. The file carries no job value.
  • Street addresses or owners. We publish counts and permit rows without them.

Building, trade, fence, sign and fire-protection permits the City of Rockville issues inside the city limits. Montgomery County's Department of Permitting Services covers the rest of the county, so a Rockville mailing address outside the city is not in this file. Plumbing and gas-service connections that WSSC Water permits are not in it either.

Hiring someone here?

The permit file can't tell you who does good work. Ask for the contractor's license number and look it up at the Maryland Home Improvement Commission, then ask the city whether they pulled the permit for your job.

Permits by kind of work

Permits issued October 2024 through September 2026, every kind of work with 100 or more. Last 12 months is Oct 2025–Sep 2026. Homes is the share issued as residential permits.

Kind of workPermitsShareLast 12 mo
Plumbing1,63628%836
Electrical94216%473
HVAC88015%451
Fences & walls3015%155
Solar2945%174
Garages, sheds & shade structures1453%73
Remodels & repairs1062%61
Other1,27122%574

Fewer than 100 permits, so no row: new homes (72), additions (66), demolition (43), ADUs & casitas (10), roofing (9), pools & spas (4).

Download this table (CSV)

Most active contractors by permits filed

The contractors named on the most permits in the City of Rockville MGO permit file, October 2024 through September 2026, with 5 or more each. Share is the part of all 5,779 permits; 35% of them name a contractor we can show. This is volume, not quality: more permits doesn't mean better work. Individuals' names, owner-builders and blanks are left out.

ContractorPermitsShare
Bayside Fire Protection, LLC1933%
Noel's Fire Protection, LLC1332%
Bozzuto Contracting Co. Inc781%
Solar Energy World LLC57under 1%
Toll Mid-Atlantic LP Company, Inc.48under 1%
Guardian Fire Protection Services, LLC41under 1%
Fusion Solar Services30under 1%
Potomac Fence Inc30under 1%
Frederick Fence Company28under 1%
Freedom Forever Maryland LLC27under 1%

Download this table (CSV)

Rockville permit statistics →Rockville permits by ZIP code →Rockville, MD building permit search: MGO, the permit map and Permit Plan →

Before you start a project

All guides →

Guides for Rockville

Local permit rules and lookups, each with Rockville's own permit numbers.

Nearby permit data

Permit data for other places in Washington, DC. Each permit office keeps its own file, so the numbers are not added together.

Arlington, VAWashington, DCFairfax County, VAMontgomery County, MDPrince George's County, MDHoward County, MD

How these numbers are made

Source: City of Rockville MGO permit map layer (MGO_Permit_View, ArcGIS), read 20 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.

Building, trade, fence, sign and fire-protection permits the City of Rockville issues inside the city limits. Montgomery County's Department of Permitting Services covers the rest of the county, so a Rockville mailing address outside the city is not in this file. Plumbing and gas-service connections that WSSC Water permits are not in it either.

  • The city's permit layer names a contractor company on only about a third of permits; many others list a permit expediter or the owner as applicant, which we don't treat as the contractor.
  • The layer has no issue date, so a permit is dated by the day its case was opened; cases still under review, awaiting payment or approved but not yet issued are not counted.
  • The layer's job value is zero on every permit and it has no final inspection date, so we show no costs and no time to final.
  • Rockville moved to its current permit system (MyGovernmentOnline) in late October 2021; older permits are not in the layer.
  • Gas appliance hook-ups (stoves, ranges, dryers) that the city files as mechanical permits are counted as plumbing (gas line) work; furnace, air-conditioner and heat-pump jobs are HVAC.
  • Fire sprinkler and alarm permits, signs and commercial tenant fit-outs are counted under Other.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →

Cite this page

Free to reuse with attribution (CC BY 4.0). Please credit Contractor Records and link to this page. Suggested citation:

Contractor Records, "Rockville, MD building permits", https://contractorrecords.com/rockville/, data through September 2026, from City of Rockville Inspection Services building-permit records.

Link to a table: By kind of work · Most active contractors by permits filed · Browse the permits · Permits each month.

Download the tables (CSV): Permits by kind of work · Most active contractors by permits filed · Permits in the last 12 months.

Common questions

  • How many building permits does Rockville issue a year?About 2,890 a year in Rockville: 5,779 permits issued October 2024 through September 2026, 2,932 of them in the last 12 months. That counts the permits the city issued, homes and commercial, not denied or withdrawn applications.
  • Can I find a contractor's permits in Rockville?The city's file names contractors, but we don't rate, rank or profile firms from it. The table above lists the contractors named on the most permits, as a count only. Check a license at the Maryland Home Improvement Commission and ask the contractor for the permit number of a past job.
  • What do people build most in Rockville?Plumbing: 1,636 of the 5,779 permits (28%), then electrical (942), HVAC (880), October 2024 through September 2026.
  • How do I look up a building permit in Rockville?Filter the permit list on this page by month, kind of work and ZIP code to see what was issued. For one property's permits, search the city's own records by address or permit number; we don't publish addresses. How to look up a permit in Rockville →
  • How many permits were issued in Rockville last month?247 in September 2026, the last full month on file; 2,932 over the last 12 months.

Browse the permits

Browse 5,779 permits

Every permit in the file issued October 2024 through September 2026, newest first. Pick a month, a kind of work, a ZIP code or a status. Each row is one permit: no street address, no names.

The list loads as you reach it (5,779 permits).

IssuedKind of workCity permit typeStatusZIP

Permits each month, the last 12 months

Permits issued each month and the kind of work with the most. A month opens its permits in the list above.

MonthPermitsTop kind of work
Sep 2026247Plumbing (64)
Aug 2026225Plumbing (59)
Jul 2026255Plumbing (94)
Jun 2026289Plumbing (64)
May 2026252Plumbing (50)
Apr 2026196Plumbing (63)
Mar 2026273Plumbing (88)
Feb 2026229Plumbing (62)
Jan 2026231Plumbing (78)
Dec 2025251Plumbing (83)
Nov 2025244Plumbing (55)
Oct 2025240Plumbing (76)

Download this table (CSV)