Baltimore City · 21202
501 E PRATT ST
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- Total assessment
- $86,073,000
- Land use
- Exempt Commercial (EC)
- Year built
- 1981
- Last sale
- Jul 19, 1988
Assessment
| Owner | MAYOR AND CITY COUNCIL OF |
|---|---|
| Land use | Exempt Commercial (EC) |
| Total assessment | $86,073,000 (cycle 2026) |
| Last sale | Jul 19, 1988 |
| Year built | 1981 |
| Zoning | C-5IH |
| Vacant | — |
Permits
27| Type | Description | Cost | Issued |
|---|---|---|---|
| BCCM | SCOPE OF WORK: ------- EXTERIOR ALTERATIONS --------- Replacement of Roof inkind. Improvement and additional roof anchors to be installed.. AS PER PLANS AND AS PER CODE. | $2,000,000 | Aug 7, 2025 |
| USE2024 | SNACK CART TO BE PUSHED ON AND OFF EACH DAY THE WETLANDS AT THE NATIONAL AQUARIUM IS OPEN, BARRING WEATHER. | — | Apr 7, 2025 |
| COM2025 | NEW/RELOCATED FIRE ALARM DEVICES ACROSS 4TH FLOOR SPACE | — | Mar 20, 2025 |
| BCCM | Install 34 Low Voltage drops | $9,166 | Mar 11, 2025 |
| BCCM | FURNISH & INSTALL (34) SPEAKERS Approved For Work only. Subject to the permitted uses and regulations under the provisions of the Zoning Ordinance. | — | Mar 10, 2025 |
| COM2024 | INSTALL (28) # FIXTURES/DEVICES, (13) # BRANCH CIRCUITS/FEEDERS AS PER CODE. | — | Mar 3, 2025 |
| USE2024 | USE PORTION FOR/AS A CARRY-OUT (DIPPIN DOTS STAND INSIDE THE NATIONAL AQUARIUM) | — | Oct 15, 2024 |
| COM2024 | THE NATIONAL AQUARIUM FIRE ALARM AS PER PLANS AS PER CODE. | $5,000 | Oct 11, 2024 |
| COM2024 | INSTALL AS PER CODE LOW VOLTAGE CABLING FOR FOUR CARD READER LOCATIONS TO SECURE DOOR ACCESS. | $10,000 | Aug 20, 2024 |
| COM2024 | INSTALL (2) NEW FREE-STANDING, ILLUMINATED, IDENTITY AND EDUCATIONAL PYLON SIGNS AS PER THE SUBMITTED PLANS TO BE INCORPORATED INTO THE NEW HARBOR WETLANDS CAMPUS THAT IS CURRENTLY APPROVED UNDER PERMIT NUMBER: COM2023-000538 / PLAN NUMBER: 2023-439 | $15,000 | Jun 21, 2024 |
| COM2024 | RENOVATION OF (1) FREESTANDING, SINGLE-SIDED, ILLUMINATED MONUMENT SIGN USING EXISTING FOOTERS AND ADDITION OF (1) NEW DECK WITH ACCENT LIGHTING AS PER PLANS AS PER CODE. | $92,000 | Jun 13, 2024 |
| COM2023 | INSTALL A PERMANENT SCREEN WALL TO HOUSE COMPOSTING BINS ON PIER 3 AND 4. INSTALL 2 EXTERIOR LIGHTS AS PER PLANS AS PER CODE. | $138,000 | May 13, 2024 |
| COM2024 | MODIFY THE EXISTING WET FIRE SPRINKLER SYSTEM BY ADDING 2 AND RELOCATING 2 SPRINKLERS IN ORDER TO ACCOMODATE THE NEW BLOWER ROOM BEING CONSTRUCTED WITHIN AN EXISTING MECHANICAL ROOM. THE DESIGN AND INSTALLATION SHALL BE IN ACCORDANCE WITH NFPA 13-2016 AND BALTIMORE CITY FIRE CODE. MATCH EXISTING ORDINARY HAZARD AND MAX SPACING OF 130FT². AS PER PLANS AS PER CODE. | $7,500 | Apr 8, 2024 |
| COM2024 | INSTALL (6) # ANNUAL TESTING INSPECTION AS PER CODE. | $5,000 | Mar 27, 2024 |
| COM2023 | SCOPE OF WORK:-----PAVING AND EXTERIOR ALTERATIONS------THE NATIONAL AQUARIUM IS PROPOSING TO IMPLEMENT A NEW CAMPUS PLAN THAT WILL SERVE AS A PLATFORM TO STUDY AND EXHIBIT TO THE PUBLIC THE LIFE IN THE HARBOR. THE CAMPUS PLAN, TERMED URBAN WETLAND, WILL FOCUS ON CREATING A FUNCTIONAL ENGINEERED ECOSYSTEM OF TIDAL MARSH TO ATTRACT AND SHOWCASE A RANGE OF ORGANISMS. THE PROJECT ENTAILS A SELF-SUPPORTIVE URBAN WETLAND THROUGH A SYSTEM OF BUOYED PONTOONS AND STRUCTURAL FRAMING MEMBERS, A FLOATING LEARNING DOCK TO SERVE AS AN EDUCATIONAL SPACE, OYSTER HABITATS, AND AIR DIFFUSERS TO PROVIDE ADDITIONAL INPUTS OF OXYGEN INTO THE WATER AS PER PLANS AS PER CODE. | $7,000,000 | Sep 1, 2023 |
| COM2023 | INSTALL TWO NON-ILLUMINATED EDUCATIONAL SIGNS ON THE EXTERIOR OF THE PEDESTRIAN BRIDGE SPANNING PIERS 4 TO PIER 5 NEAR NATIONAL AQUARIUM. SIGNS WILL BE INSTALLED ON THE SOUTH SIDE, CLOSER TO THE PIER 4. NATIONAL AQUARIUM WILL BUILD, INSTALL, AND MAINTAIN THE SIGNS. THE SIGNS WILL NOT BE TALLER THAN 5 FEET HIGH. AS PER PLANS AS PER CODE. | $9,000 | Aug 22, 2023 |
| COM2023 | SCOPE OF WORK:-----EXTERIOR ALTERATIONS---EXISTING ROOF AREA REPLACEMENT IN KIND (ROOF SURFACE ONLY, NON-STRUCTURAL) AS PER CODE. | $1,000,000 | Apr 25, 2023 |
| USE2021 | USE PORTION AS A SNACK STAND SPACE WITHIN THE NATIONAL AQUARIUM. [NEW COMPANY IN PROCESS OF REOPENING STANDS]. | — | Jan 18, 2023 |
| USE2022 | RESTAURANT IN THE NATIONAL AQUARIUM (SSA GROUP, LLC IS THE EXCLUSIVE FOOD AND BEVERAGE PROVIDER) | — | Oct 11, 2022 |
| COM2022 | ADDING 12 SPRINKLERS, RELOCATING 6 SPRINKLERS AND CHANGING 9 SPRINKLERS TO STANDARD SPRAY AS PER PLANS AS PER CODE. (TO ACCOMMODATE NEW INTERIOR ALTERATIONS. THE DESIGN SHALL BE PER ORDINARY HAZARD OCCUPANCY AND FOLLOW THE GUIDLINES OF NFPA 13, 2016). | $14,000 | Sep 15, 2022 |
| COM2022 | INTERIOR RENOVATIONS TO PIER 3 CAFE AT THE NATIONAL AQUARIUM IN BALTIMORE AS PER PLANS AS PER CODE. | $840,000 | Aug 10, 2022 |
| COM2022 | SCOPE OF WORK: EXTERIOR ALTERATIONS TO INCLUDE: SIGN REFACE: REFACING AND TOUCHING UP CURRENT SIGNS AROUND THE AQUARIUM 3 IN TOTAL, *SIGN 1: 48''X96'', SIGN 2: 74''X48'', SIGN 3: 9'-7 7/8''X9', ALL WORK WILL BE DONE ACCORDING TO BALTIMORE CITY CODE AND PER SUBMITTED PLANS | $1,500 | Jul 28, 2022 |
| USE2021 | USE AND OCCUPANCY FOR SNACK CART AT THE NATIONAL AQUARIUM. NEW COMPANY IN PROCESS OF REOPENING STANDS. | — | Jun 13, 2022 |
| COM2022 | AMEND PERMIT: ADD ELECTRICAL CONTRACTOR . (ORIGINAL PERMIT:COM2021-03946:REPLACEMENT OF GLAZING AND LIGHTING AT RAINFOREST PYRAMID AS PER PLANS AS PER CODE. SEPERATE PERMITS ARE REQUIRED FOR SPRINKLERS AND FIRE ALARM SYSTEMS. ) Original Permit Description:(COM2021-03946) REPLACEMENT OF GLAZING AND LIGHTING AT RAINFOREST PYRAMID AS PER PLANS AS PER CODE. SEPERATE PERMITS ARE REQUIRED FOR SPRINKLERS AND FIRE ALARM SYSTEMS. | — | Mar 31, 2022 |
| COM2021 | REPLACEMENT OF GLAZING AND LIGHTING AT RAINFOREST PYRAMID AS PER PLANS AS PER CODE. SEPERATE PERMITS ARE REQUIRED FOR SPRINKLERS AND FIRE ALARM SYSTEMS. | $5,000,000 | Mar 29, 2022 |
| USE2021 | USE PORTION AS A RESTAURANT. | — | Jul 2, 2021 |
| USE2020 | RETAIL GIFT SHOP INSIDE THE NATIONAL AQUARIUM | — | Feb 19, 2021 |
Violations
0No violations on record.
Inspections
0No inspections on record.
Nearby recent activity
- permit: BUSEJun 25, 2026 · 109 m · 621 E PRATT ST
- permit: BCCMMay 27, 2026 · 109 m · 621 E PRATT ST
- permit: BCCMMay 19, 2026 · 109 m · 621 E PRATT ST
- permit: BCCMMay 12, 2026 · 109 m · 621 E PRATT ST
- permit: BCCMApr 10, 2026 · 144 m · 401 E PRATT ST
- permit: BCCMMar 30, 2026 · 109 m · 621 E PRATT ST
- permit: BTEMPMar 19, 2026 · 125 m · 601 E PRATT ST
- permit: BCCMMar 3, 2026 · 125 m · 601 E PRATT ST
- permit: BCCMDec 9, 2025 · 125 m · 601 E PRATT ST
- permit: BCCMNov 26, 2025 · 144 m · 401 E PRATT ST
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: 2026-07-11; sdat-properties: 2026-07-12;
Official sources: Maryland SDAT, Baltimore City permits.