How many projects has Jeffrey Peter Knorr undertaken?

Jeffrey Peter Knorr has pulled 11.0 building permits since 2004.

Does Jeffrey Peter Knorr carry a valid contracting license?

Jeffrey Peter Knorr currently holds license 20290 (Plumbers), which was Active when we last checked.

Jeffrey Peter Knorr

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Updated: Apr 21, 2026

Building Permits by Jeffrey Peter Knorr

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Express plumbing permit

6163 Clearsmoke Ct, Columbia, MD, 21045

2012-07-05

Rough-in and trim-out 1 new water closet and 1 new lavatory

Valuation:

Permit #:

P12002534

Status:

Completed

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

6163 Clearsmoke Ct, Columbia, MD, 21045

2012-07-30

Relocate washing machine box

Valuation:

Permit #:

P12002874

Status:

Completed

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Residential plumbing addition alteration permit

5104 Ilchester Woods Way, Ellicott City, MD, 21043

2007-06-22

Single family dwelling install basement bathroom & bar sink 1-shower/1-lav/1-water closet

Valuation:

N/A

Permit #:

P07002488

Status:

complete

Fee:

$94

Permit Type:

N/A

Building Type:

N/A

Residential plumbing addition alteration permit

10367 Barcan Cir, Columbia, MD, 21044

2009-01-23

Single family dwelling install basement bathroom 1-bathtub/1-lav/1-water closet

Valuation:

N/A

Permit #:

P09000151

Status:

complete

Fee:

$89

Permit Type:

N/A

Building Type:

N/A

Residential plumbing addition alteration permit

5909 Rising Sta, Elkridge, MD, 21075

2008-12-03

Single family dwelling install gas line to gas fireplace standard low pressure

Valuation:

N/A

Permit #:

P08003935

Status:

complete

Fee:

$78

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

9921 Eldee Dr, Ellicott City, MD, 21042

2009-11-03

Install 1 water closet 1 shower 1 lavatory and 1 kitchen sink

Valuation:

Permit #:

P09003392

Status:

Completed

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

9921 Eldee Dr, Ellicott City, MD, 21042

2009-11-03

Install 1 water closet 1 shower 1 lavatory and 1 kitchen sink

Valuation:

N/A

Permit #:

P09003392

Status:

complete

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

6503 River Run, Columbia, MD, 21044

2007-01-25

Install 4 fixtures - basement bathroom and wet bar express

Valuation:

N/A

Permit #:

P07000206

Status:

complete

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

3014 Carlee Run Ct, Ellicott City, MD, 21042

2008-01-24

Express -- bar sink in finished basement b08000156

Valuation:

N/A

Permit #:

P08000198

Status:

complete

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

10568 Hounslow Dr, Woodstock, MD, 21163

2006-07-17

C-18936 basement bathroom & bar sink

Valuation:

N/A

Permit #:

P06001610

Status:

complete

Fee:

N/A

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

6163 Clearsmoke Ct, Columbia, MD, 21045

2012-07-05

Rough-in and trim-out 1 new water closet and 1 new lavatory

Valuation:

N/A

Permit #:

P12002534

Status:

complete

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Express plumbing permit

6163 Clearsmoke Ct, Columbia, MD, 21045

2012-07-30

Relocate washing machine box

Valuation:

N/A

Permit #:

P12002874

Status:

complete

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Plumbing fuel gas (res)

10214 Conover Dr, Silver Spring, MD, 20902

2004-06-29

Ppis permit 0995043

Valuation:

N/A

Permit #:

PFG-0995043-2016

Status:

issued

Fee:

N/A

Permit Type:

Additional fixtur...

Building Type:

N/A

Express plumbing permit

1 Express Address, Espress, MD, 27263

2007-01-25

Plumbing express permit expired via batch job on 7/7/2010

Valuation:

N/A

Permit #:

P07000207

Status:

expired

Fee:

$55

Permit Type:

N/A

Building Type:

N/A

Recent Buildzoom Projects

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Verified License

License #	20290
Status	Active
State	Maryland
Type	Plumbers

BuildZoom verified this license was active as of April 2026.

Verify this license's status for Jeffrey Peter Knorr at the Maryland Department of Labor, Licensing & Regulation.

This is a sample of licensing data; click here to access a complete history.

91

BuildZoom Score

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11

Permits

Building permit records show that Jeffrey Peter Knorr has worked on 11 permitted projects.

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Jeffrey Peter Knorr

Location and Projects