# Building permits at 4521 Marx Ave, Baltimore, MD One permit on record here. The newest, Nov 18, 2025: Installation and wiring of 16 Qcell BOB C+ DC's roof mounted 6.56kW system size. Within a quarter mile, the city has issued 10 more permits since May 1. One is for a new building, 0.23 mi away. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Nov 18, 2025 | Electrical | installation and wiring of 16 Qcell BOB C+ DC's roof mounted 6.56kW system size | $18,000 | [BRCM-25-014725](https://nearbypermits.com/baltimore/permit/BRCM-25-014725/) | ## Within ¼ mi since May 1, 2026 10 permits in the circle. From our copy of the city's data (last 24 months). ### Next door (under 250 ft), 1 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Jun 24, 2026 | [4506 Saint Thomas Ave](https://nearbypermits.com/baltimore/address/4506-saint-thomas-ave/) | 230 ft SW | Plumbing | Tub to Shower Replacement. Only Wet Area. No structural Change. The plumbing supply and drains stay in the same location, and the walls are not touched. | $500 | [BRCM-26-013258](https://nearbypermits.com/baltimore/permit/BRCM-26-013258/) | ### This block (250 to 1,000 ft), 3 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Sep 21, 2026 | [4410 Saint Thomas Ave](https://nearbypermits.com/baltimore/address/4410-saint-thomas-ave/) | 630 ft W | Mechanical (HVAC) | Replace 60,000 Btu gas furnace, 2-ton A/C, and evaporator coil with same. Install disconnects for 2-ton A/C and furnace. | $9,441 | [BRCM-26-019274](https://nearbypermits.com/baltimore/permit/BRCM-26-019274/) | | Sep 3, 2026 | [4707 Blueridge Ave](https://nearbypermits.com/baltimore/address/4707-blueridge-ave/) | 870 ft N | Electrical | new 200 amp line side replacement and the grounding update. | $1,813 | [BRCM-26-018203](https://nearbypermits.com/baltimore/permit/BRCM-26-018203/) | | May 5, 2026 | [4527 Furley Ave](https://nearbypermits.com/baltimore/address/4527-furley-ave/) | 310 ft NE | Plumbing | Replace 30-gallon 30,000 Btu gas water heater with the same. | $3,549 | [BRCM-26-009274](https://nearbypermits.com/baltimore/permit/BRCM-26-009274/) | ### Farther (1,000 ft to ¼ mi), 6 permits | Date | Address | Distance | Type | Work | Cost | Permit | |---|---|---|---|---|---|---| | Oct 8, 2026 | [4612 Findlay Rd](https://nearbypermits.com/baltimore/address/4612-findlay-rd/) | 0.24 mi W | Mechanical (HVAC) | Install 100000 btu gas furnace, 3 ton air conditioning system with new ductwork, venting for 4 bathrooms and 1 dryer | $5,000 | [BRCM-26-020384](https://nearbypermits.com/baltimore/permit/BRCM-26-020384/) | | Aug 31, 2026 | [4612 1/2 Findlay Rd](https://nearbypermits.com/baltimore/address/4612-1_2-findlay-rd/) | 0.23 mi W | Plumbing | Install (13) plumbing fixtures (1) Electric water heater (2) Gas Appliances | $1,150 | [BRCM-26-017457](https://nearbypermits.com/baltimore/permit/BRCM-26-017457/) | | Jul 2, 2026 | [4612 1/2 Findlay Rd](https://nearbypermits.com/baltimore/address/4612-1_2-findlay-rd/) | 0.23 mi W | New building | 200 Amp service new house 30 circuits footer ground 100 devices | $8,000 | [BRCM-26-013715](https://nearbypermits.com/baltimore/permit/BRCM-26-013715/) | | Jun 25, 2026 | [4612 1/2 Findlay Rd](https://nearbypermits.com/baltimore/address/4612-1_2-findlay-rd/) | 0.23 mi W | Fire systems | New construction of a 2 story 2530 sf+/- single family home. Excavated & partially finished 818 sf+/- basement. Per code, per construction plans. Separate permit is required for electrical, mechanical, plumbing.work and sprinkler system, as per plans and as per code. | $180,000 | [BRCM-25-019473](https://nearbypermits.com/baltimore/permit/BRCM-25-019473/) | | Jun 3, 2026 | [4706 Moravia Rd](https://nearbypermits.com/baltimore/address/4706-moravia-rd/) | 0.23 mi SE | Mechanical (HVAC) | Install new mini split system. Install 3 ton heat pump (mini split outdoor) and 18k air handler (mini split indoor) and (2) 9k air handlers (mini split indoors) | $15,000 | [BRCM-26-011639](https://nearbypermits.com/baltimore/permit/BRCM-26-011639/) | | May 26, 2026 | [4405 Woodlea Ave](https://nearbypermits.com/baltimore/address/4405-woodlea-ave/) | 0.20 mi N | Alteration or repair | Replace existing 2.5 Ton AC System | $4,000 | [BRCM-26-010992](https://nearbypermits.com/baltimore/permit/BRCM-26-010992/) | ## Zoning requests nearby We don't list zoning cases for Baltimore yet. Look them up on the city's Baltimore Municipal Zoning and Appeals Board page: https://www.baltimorecity.gov/mayor/our-work/boards-commissions/boards/baltimore-municipal-zoning-and-appeals-board-bmza ## More on this street Other addresses on Marx Ave with permits, nearest house number first: - [4505 Marx Ave](https://nearbypermits.com/baltimore/address/4505-marx-ave/): newest permit Jun 12, 2025 - [4600 Marx Ave](https://nearbypermits.com/baltimore/address/4600-marx-ave/): newest permit May 2, 2025 - [4136 Marx Ave](https://nearbypermits.com/baltimore/address/4136-marx-ave/): newest permit Aug 15, 2026 - [4132 Marx Ave](https://nearbypermits.com/baltimore/address/4132-marx-ave/): newest permit Jun 8, 2026 - [4107 Marx Ave](https://nearbypermits.com/baltimore/address/4107-marx-ave/): newest permit May 8, 2026 - [3922 Marx Ave](https://nearbypermits.com/baltimore/address/3922-marx-ave/): newest permit Feb 16, 2026 - [3919 Marx Ave](https://nearbypermits.com/baltimore/address/3919-marx-ave/): newest permit Dec 26, 2025 - [3912 Marx Ave](https://nearbypermits.com/baltimore/address/3912-marx-ave/): newest permit Jul 7, 2026 - [3910 Marx Ave](https://nearbypermits.com/baltimore/address/3910-marx-ave/): newest permit Jul 11, 2025 - [3906 Marx Ave](https://nearbypermits.com/baltimore/address/3906-marx-ave/): newest permit Oct 8, 2026 --- Source: Baltimore Department of Housing and Community Development permit data (https://www.arcgis.com/home/item.html?id=189e6d1c65df4e13b38c0027cee574f6), City of Baltimore, CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/). Checked 2026-10-11 20:05 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ Map, the one permit at this address and 10 nearby: https://nearbypermits.com/baltimore/address/4521-marx-ave/