Baltimore City · 21224

138 S POTOMAC ST

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Total assessment: $470,500
Land use: Residential (R)
Year built: 1904
Last sale: Sep 26, 2025

Assessment

Owner	PORTERFIELD, JOSHUA EDWARD
Land use	Residential (R)
Total assessment	$470,500 (cycle 2026)
Last sale	Sep 26, 2025 — $465,000
Year built	1904
Zoning	R-8
Vacant	—

Permits

Type	Description	Cost	Issued
USE2022	USE AS SINGLE-FAMILY DWELLING.	—	May 17, 2022
COM2022	SCOPE OF WORK: ALTERATIONS TO INCLUDE: BUILD ONE INTERNAL STAIRCASE (TREAD: 9''MIN, RISE; 8 1/4''MAX AND WIDTH: 36''MIN) FROM THE SECOND FLOOR TO THE ROOF. BUILD ONE ROOFTOP DECK ( 16'L X 14'4''W). ALL WORK IS PER CODE AND DRAWINGS. (*NOTES: 1. DECK WILL BE PROPERLY SECURED, 2. ALL DECK WORK WILL BE DONE WITHIN PRIVATE PROPERTY LINES AND MAINTAIN ALL PROPER SETBACKS)	$7,000	Feb 17, 2022
COM2021	INSTALL (1) 200 AMPS ELECTRIC SERVICE UP TO 600V (#AMPS), (22) # BRANCH CIRCUITS/FEEDERS , (10) # LOW VOLTAGE AS PER CODE.	$5,000	Dec 16, 2021
COM2021	INSTALL (1) 30000 BTU AIR-CON SYSTEM, HEAT PUMP, (1) # NEW DISTRIBUTION SYSTEM (1-2 FAMILY), (1) 72000 BTU FUEL-BURNING EQUIP AS PER CODE.	$6,000	Dec 13, 2021
COM2021	SCOPE OF WORK: INTERIOR/EXTERIOR ALTERATIONS TO INCLUDE: WITHIN EXISTING SINGLE DWELLING UNIT: FRAME NEW ( 2X4 @ 16'' OC INTERIOR WALLS. INSULATE WALLS WITH R-19 AND CEILINGS WITH R-49. INSTALL (3) EXTERIOR DOORS ( SAME SIZE / LOCATION ). INSTALL (9) WINDOW (SAME SIZE / LOCATION ). INSTALL DRYWALL, TRIM, KITCHEN CABINETS AND 12 INTERIOR DOORS. REMOVE EXISTING REAR CONCRETE PAD ( 23'L X 14'4''W ). INSTALL 4'' OF GRAVEL. WIRE MESH AND 4'' ON NEW CONCRETE ( 23'L X 14'4''W ). ALL WORK IS PER CODE AND AS PER SUBMITTED PLANS. SEPARATE PERMIT WILL BE PULLED FOR ANY MEP WORK (NOTES: 1. ALL HABITABLE AREAS WILL MAINTAIN MINIMUM CEILING HEIGHT OF 7', 2. ALL HALLWAYS WILL MAINTAIN MINIMUM WIDTH OF 36'', 3. ALL BEDROOMS WILL MAINTAIN MINIMUM 70SQ/FT FOR ONE OCCUPANT OR 50SQ/FT PER OCCUPANT, 4. ALL BATHROOMS WILL MAINTAIN ENOUGH CLEAR FLOOR SPACE FOR CLEARANCE OF PLUMBING FIXTURES)	$30,000	Nov 15, 2021
COM2021	INSTALL (13) # PLUMBING FIXTURES, (1) # ELECTRIC WATER HEATER, (1) 50000 BTU FUEL-BURNING EQUIP, (1) 75000 BTU FUEL-BURNING EQUIP, (1) 35000 BTU FUEL-BURNING EQUIP, (1) # SANITARY CONNECTION (RECONSTRUCTION0, (1) # WATER SERVICE PIPE (RECONSTRUCTION) AS PER CODE.	$250	Oct 27, 2021
COM2021	UNDERPINNING OF FOUNDATION WALLS AS PER ATTACHED ENGINEER'S PLAN AND CERTIFICATION. THE ENGINEER'S CERTIFICATION IS REQUIRED AT COMPLETION OF WORK AND WITH A REPORT OF THE EXACT DATES OF PERIODIC INSPECTIONS DURING THE CONSTRUCTION. EXISTING HEIGHT 6’6” PROPOSED HEIGHT 7’6”. ALL WORK WILL BE DONE ACCORDING TO BALTIMORE CITY CODE AND SUBMITTED PLANS.	$10,000	Oct 18, 2021

Violations

No violations on record.

Inspections

No inspections on record.

Nearby recent activity

Records marked with * are matched by address, not a direct account link. Data is informational only.

Data freshness: city-311: 2026-07-12; city-ecb-citations: 2026-07-12; city-housing-inspections: 2026-07-12; city-permits: 2026-07-12; city-real-property: 2026-07-12; city-vbn: 2026-07-12; county-permits: 2026-07-12; sdat-properties: 2026-07-12;

Official sources: Maryland SDAT, Baltimore City permits.