Contractor Records
Home › Rockville › Permit statistics

Rockville, MD building permit statistics

Data through September 2026 · updated 20 Oct 2026

5,779 building permits issued in Rockville, October 2024 through September 2026: about 2,890 a year. The biggest kind of work is plumbing, with 1,636. 2,932 permits in the last 12 months (Oct 2025–Sep 2026), 3% more than the 2,847 in the 12 months before. 57% were permits for homes. The busiest month for permits is October.

5,779permits issued
2,932last 12 months
+3%vs the 12 months before
57%for homes
Octbusiest month
Sep 2026records through

By kind of work

Permits issued October 2024 through September 2026. Last 12 months is Oct 2025–Sep 2026; the 12 months before is Oct 2024–Sep 2025. Homes is the share issued as residential permits. Busiest month is the calendar month with the most permits on average.

Kind of workPermitsShareLast 12 mo12 mo beforeChangeHomesBusiest month
Plumbing1,63628%836800+4%61%July
Electrical94216%473469+1%63%September
HVAC88015%451429+5%83%October
Fences & walls3015%155146+6%97%May
Solar2945%174120+45%83%September
Garages, sheds & shade structures1453%7372+1%100%June
Remodels & repairs1062%6145+36%100%May
Other1,27122%574697−18%0%November

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)

By year

Permits issued in each calendar year of the window. Per year scales a part year to 12 months.

YearMonthsPermitsPer year
2024 (from October)37533,012
2025122,8292,829
2026 (through September)92,1972,929

Download this table (CSV)

By month

Permits issued each month, October 2024 through September 2026. The tallest bar is the busiest month on file.

Oct 2024: 276Oct2024Nov 2024: 254Dec 2024: 223Jan 2025: 228Jan2025Feb 2025: 238Mar 2025: 216Apr 2025: 252May 2025: 205Jun 2025: 207Jul 2025: 244JulAug 2025: 267Sep 2025: 237Oct 2025: 240Nov 2025: 244Dec 2025: 251Jan 2026: 231Jan2026Feb 2026: 229Mar 2026: 273Apr 2026: 196May 2026: 252Jun 2026: 289Jul 2026: 255JulAug 2026: 225Sep 2026: 247
The same numbers as a table
MonthPermits
Oct 2024276
Nov 2024254
Dec 2024223
Jan 2025228
Feb 2025238
Mar 2025216
Apr 2025252
May 2025205
Jun 2025207
Jul 2025244
Aug 2025267
Sep 2025237
Oct 2025240
Nov 2025244
Dec 2025251
Jan 2026231
Feb 2026229
Mar 2026273
Apr 2026196
May 2026252
Jun 2026289
Jul 2026255
Aug 2026225
Sep 2026247

Download this table (CSV)

When each kind of work is filed

Permits by calendar month, 100 = an average month (the thin line), October 2024 through September 2026. Kinds of work do not all peak together. Each month is counted twice (once a year), so one unusual month still moves these numbers.

Plumbing

1,636 permits · busiest July, quietest May

January: 100 (100 = an average month)February: 94 (100 = an average month)March: 102 (100 = an average month)April: 120 (100 = an average month)May: 78 (100 = an average month)June: 90 (100 = an average month)July: 126 (100 = an average month)126August: 96 (100 = an average month)September: 96 (100 = an average month)October: 102 (100 = an average month)November: 86 (100 = an average month)December: 110 (100 = an average month)JFMAMJJASOND

Electrical

942 permits · busiest September, quietest February

January: 101 (100 = an average month)February: 78 (100 = an average month)March: 104 (100 = an average month)April: 92 (100 = an average month)May: 98 (100 = an average month)June: 102 (100 = an average month)July: 99 (100 = an average month)August: 101 (100 = an average month)September: 121 (100 = an average month)121October: 113 (100 = an average month)November: 96 (100 = an average month)December: 96 (100 = an average month)JFMAMJJASOND

HVAC

880 permits · busiest October, quietest April

January: 89 (100 = an average month)February: 86 (100 = an average month)March: 89 (100 = an average month)April: 71 (100 = an average month)May: 109 (100 = an average month)June: 102 (100 = an average month)July: 115 (100 = an average month)August: 98 (100 = an average month)September: 106 (100 = an average month)October: 128 (100 = an average month)128November: 91 (100 = an average month)December: 116 (100 = an average month)JFMAMJJASOND

Fences & walls

301 permits · busiest May, quietest January

January: 36 (100 = an average month)February: 36 (100 = an average month)March: 136 (100 = an average month)April: 92 (100 = an average month)May: 155 (100 = an average month)155June: 155 (100 = an average month)July: 112 (100 = an average month)August: 92 (100 = an average month)September: 104 (100 = an average month)October: 92 (100 = an average month)November: 120 (100 = an average month)December: 72 (100 = an average month)JFMAMJJASOND

Solar

294 permits · busiest September, quietest February

January: 82 (100 = an average month)February: 45 (100 = an average month)March: 53 (100 = an average month)April: 106 (100 = an average month)May: 98 (100 = an average month)June: 86 (100 = an average month)July: 106 (100 = an average month)August: 86 (100 = an average month)September: 171 (100 = an average month)171October: 155 (100 = an average month)November: 159 (100 = an average month)December: 53 (100 = an average month)JFMAMJJASOND

Garages, sheds & shade structures

145 permits · busiest June, quietest April

January: 74 (100 = an average month)February: 66 (100 = an average month)March: 83 (100 = an average month)April: 50 (100 = an average month)May: 157 (100 = an average month)June: 190 (100 = an average month)190July: 124 (100 = an average month)August: 91 (100 = an average month)September: 83 (100 = an average month)October: 116 (100 = an average month)November: 99 (100 = an average month)December: 66 (100 = an average month)JFMAMJJASOND

Remodels & repairs

106 permits · busiest May, quietest January

January: 45 (100 = an average month)February: 79 (100 = an average month)March: 68 (100 = an average month)April: 102 (100 = an average month)May: 158 (100 = an average month)158June: 136 (100 = an average month)July: 125 (100 = an average month)August: 102 (100 = an average month)September: 79 (100 = an average month)October: 102 (100 = an average month)November: 68 (100 = an average month)December: 136 (100 = an average month)JFMAMJJASOND
The same numbers as a table
Kind of workJanFebMarAprMayJunJulAugSepOctNovDec
Plumbing100941021207890126969610286110
Electrical101781049298102991011211139696
HVAC898689711091021159810612891116
Fences & walls363613692155155112921049212072
Solar82455310698861068617115515953
Garages, sheds & shade structures7466835015719012491831169966
Remodels & repairs4579681021581361251027910268136

Download this table (CSV)

Homes and everything else

How the city classed each permit. Other covers commercial buildings, signs, towers and similar work.

Permit classPermitsShareLast 12 mo
Homes (residential)3,28257%1,706
Other2,49743%1,226

Download this table (CSV)

How many permits get finished

Permits issued Oct 2024–Sep 2025, so each has had at least 12 months to reach a final. Finished means the city recorded a final inspection or marked it complete; expired means it lapsed without one.

StatusPermitsShare
Finished2,34182.2%
Still open1123.9%
Expired39413.8%

Download this table (CSV)

By ZIP code

The 10 ZIP codes with the most permits, counted at the property's ZIP code. A ZIP code can cross into a city that runs its own permit office; only the city's permits are counted.

ZIP codePermitsShareTop kind of work
208503,22756%Plumbing (791)
208521,15420%Plumbing (468)
2085184615%Plumbing (264)
208544898%Electrical (111)
2081410under 1%Plumbing (4)
208557under 1%Electrical (1)
208054under 1%Electrical (2)
207052under 1%Solar (1)
208402under 1%Other
208202under 1%HVAC (1)

All 4 ZIP codes with 250+ permits →

Download this table (CSV)

How Rockville compares with other cities

From our cross-city data studies: the same measure, read the same way, for every city we cover.

Nearby permit data

Permit statistics 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 permit statistics", https://contractorrecords.com/rockville/permit-statistics, data through September 2026, from City of Rockville Inspection Services building-permit records.

Link to a table: By kind of work · By year · By month · When each kind of work is filed · Homes and everything else · How many get finished · By ZIP code.

Download the tables (CSV): Permits by kind of work · Permits by year · Permits by month · Permits by calendar month (index) · Homes and other permits · Finished, open and expired · Permits by ZIP code.

Common questions

  • How many building permits does Rockville issue a year?About 2,890 a year in Rockville: 5,779 permits over 24 months, October 2024 through September 2026. 2,932 permits in the last 12 months (Oct 2025–Sep 2026), 3% more than the 2,847 in the 12 months before.
  • Are building permits up or down in Rockville?2,932 permits in the last 12 months (Oct 2025–Sep 2026), 3% more than the 2,847 in the 12 months before. Solar permits grew most (120 to 174).
  • What is the busiest month for permits in Rockville?October, counting every kind of work (107 against an average month of 100). April is the quietest (93). Each kind of work has its own season; the charts above show them.
  • What share of Rockville permits are for homes?57%: 3,282 of the 5,779 permits issued October 2024 through September 2026 were residential permits.
Rockville permit data →Rockville plumbing permits →Rockville electrical permits →Rockville HVAC permits →Browse Rockville permits →