Understanding Baltimore City Council Bill 25-0064
Baltimore’s working-class rowhomes were built for another era. Designed at the turn of the 20th century, at a time when families lived very differently, worked elsewhere, and relied less on their homes to do everything all at once. Today, homeowners are demanding more of these humble buildings. Modern urban homes require space to gather, to work, to grow, and to raise complex, dynamic families.
Baltimore City Council Bill 25-0064 was introduced to address this reality. It makes modest but meaningful updates to bulk and yard standards in residential zoning districts, with the goal of better aligning zoning rules with the way homes are used today. While the bill applies across multiple districts, R-8 zoning—common in neighborhoods like Hampden, Federal Hill, Butcher’s Hill, Canton, and Charles Village—experienced some of the most consequential changes, particularly related to rear yard depth and allowable building envelope.
This article is intended as a plain-language guide for homeowners: what changed, why it matters, and (perhaps most importantly) how to approach these new parameters with a thoughtful and critical mind.
Why This Bill Exists
At its core, Bill 25-0064 is about flexibility. Prior zoning standards often forced homeowners into an arduous and uncertain variance process for relatively modest additions, such as rear expansions, improved kitchens, primary suites, or family rooms that better connect to premium outdoor space. The updated regulations aim to reduce that friction by making the code more reflective of existing conditions on the ground.
In theory, this is a positive shift. When zoning aligns with reality, projects become more predictable, equitable, and accessible. Zoning allowances are not design recommendations. They are a framework, and how that framework is used matters.
Visualizing the Change: A Typical Hampden Rowhome
To understand the impact of the bill, consider a typical Hampden rowhome on a 13’-4” by 80’ lot, zoned R-8. This home is 1200 SF, 2-stories, with an 8’ basement (a luxury in Hampden). Let’s say we’re about 25’ from the sidewalk to the cornice. The house, like its neighbors, is 50’ deep with a 30’ rear yard.
Under the previous code, rear yard requirements limited how far additions could extend toward the alley. The updated standards allow for deeper rear additions and increased lot coverage, effectively enlarging the maximum buildable envelope.
On paper, this translates to more square footage. In practice, it raises important questions about light, air, neighbors, and the long-term health of Baltimore’s neighborhoods.
The Upside: What the Bill Gets Right
There is real value in what this bill enables:
- Homeowners can adapt their homes to changing needs without immediately triggering a lengthy zoning variance.
- Families can remain in their neighborhoods while adding space incrementally, allowing the home to grow with them.
- Carefully crafted additions can improve interior layouts, daylighting, and connections to the outdoors.
- The city can accommodate growth without altering neighborhood density or scale at the block level.
When approached carefully, these changes can lead to better homes. We believe that better homes contribute to better neighborhoods.
The Risks of Maximizing the Envelope: Bad Rowhomes Make Bad Neighbors
The concern is not what the bill allows, but how easily “allowed” can become “expected.”
Maximizing the buildable envelope; building as far back as permitted, as tall as permitted, and as large as permitted; can have real consequences in a tight urban environment. These include:
- Blocking direct sunlight to neighboring decks, gardens, and living spaces
- Creating looming rear façades that diminish privacy and comfort
- Reducing usable outdoor space for the homeowner themselves
- Eroding the rhythm and proportions that give rowhome neighborhoods their character and charm.
City life depends on a social contract between neighbors. Thoughtful additions should acknowledge that contract, not test its limits.
Urban Form, Neighborhood Character, and Interior Life
Baltimore’s neighborhoods are defined as much by what happens between buildings as by the buildings themselves: the alleys, gardens, stoops, and shared open space that foster connections and build community.
Good design resists the impulse to treat zoning diagrams as targets. Instead, it asks harder questions. How does this addition meet the ground? How does it receive, filter, and celebrate light? How does it sit among its neighbors? How does the interior space FEEL?
Exterior form and interior space must be in balance. Great homes are the result of the quality of the spaces within, not the quantity.
Just Because You Can, Doesn’t Mean You Should: Design Moves to Reconsider
Some outcomes may be technically compliant but socially shortsighted:
- Building flush to the rear property line without regard for the alley condition. How do you enter and exit the home?
- Eliminating all yard space, leaving no room for planting, permeability, or outdoor use
- Forgetting everyday necessities like trash storage, bike parking, and utilities
- Treating the home as an isolated object rather than part of a continuous urban fabric
These choices tend to age poorly—for homeowners and neighbors alike.
Extra Layers: Design Review, CHAP, and HOA Approvals
It is also important to note that zoning is not the final word. The Baltimore City Design Review Manual continues to guide how additions are evaluated, particularly where they affect the public realm. For example, third-floor additions are typically required to be set back from the front façade, regardless of zoning allowances. The Design Review manual also dictates material selections. Design Review exists to ensure that changes contribute positively to streetscape, scale, and neighborhood context.
You can access the Baltimore City Design Review Manual here: https://s3.amazonaws.com/baltimorecity.gov.if-us-east-1/s3fs-public/2024-01/transform_design_manual_final_2019_update_no_mayor_name_0.pdf
Depending on your neighborhood, your addition may be subject to scrutiny by the Commission for Architectural and Historic Preservation (CHAP). CHAP’s priority is to preserve the character of Baltimore’s historic neighborhoods. CHAP has the power to dictate architectural form, material, and color in the pursuit of preservation.
A list of Baltimore’s CHAP districts can be found here: https://www.baltimorecity.gov/chap/our-work/historic-districts/maps
Many neighborhoods have additional regulatory and review overlays such as HOA’s or Design Review Committees that function similarly to CHAP on a micro-scale. These groups typically have their own standards, guidelines, and biases that may influence the design of a rowhome addition.
It is important to consult with any Authorities Having Jurisdiction (AHJ) before beginning a major renovation.
A Balanced Takeaway
Bill 25-0064 is neither a cure-all nor a crisis. It is simply one variable amongst many that dictate what is possible when revitalizing a rowhome. Bill 25-0064 expands what is possible, while placing greater responsibility on designers and homeowners to act with care.
At EastWing Architects, we believe homes should be particular: to the client, to the block, and to the city. As much now as in the past, creating great rowhomes in Baltimore is not about using every inch you’re allowed. It’s about understanding which inches matter most.
