Last researched: September 19, 2026. Taneytown has now moved beyond the proposal stage. The City’s current zoning code lists Ordinance No. 10-2026 as adopted on September 14, 2026. The ordinance was introduced and reintroduced during the summer, received a public hearing in September, and was intended to amend the zoning code so accessory dwelling units could be authorized on lots with an existing single-family detached dwelling.
Homeowner takeaway: Taneytown now has an adopted ADU law, but the public zoning pages available during this September 19 review do not yet expose every newly adopted ADU standard in a simple, consolidated section. Before paying for plans, ask the City Planning & Zoning Department for the final signed Ordinance 10-2026, its effective date, the current ADU permit checklist and the parcel-specific standards that apply.
Taneytown ADU planning snapshot
| Question | What we verified |
|---|---|
| 2026 ADU ordinance | Ordinance No. 10-2026 is listed in the current zoning code as adopted September 14, 2026. |
| Purpose | City hearing materials describe the ordinance as adding and designating ADUs as a permitted use on lots with an existing single-family detached dwelling. |
| Current accessory-structure setback | Existing § 205-24 generally requires accessory structures to be at least 5 ft from other property lines and outside the front yard. |
| Current accessory-structure height | 15 ft maximum under the general accessory-structure rule. |
| Rear-yard coverage | Accessory structures may not occupy more than 30% of the required rear yard under the current general rule. |
| Parking-study context | 2026 Council records indicate Taneytown approved an in-house parking study for ADUs before final ordinance adoption. |
| State size rule | Maryland allows an ADU up to 75% of the size of the primary single-family detached dwelling, and covered jurisdictions may not set a lower local maximum. |
| State setback rule | Local ADU side/rear setbacks may not be more restrictive than the jurisdiction’s existing accessory-structure setbacks. |
| State parking rule | Additional off-street ADU parking requires a parking study and a waiver process. |
Taneytown adopted Ordinance 10-2026 on September 14
Taneytown’s current Chapter 205 zoning page lists Ordinance No. 10-2026 as a new zoning amendment adopted September 14, 2026.
The City’s September public-hearing materials described the purpose of Ordinance 10-2026 as amending the zoning code to include and designate accessory dwelling units as a permitted use on any lot with an existing single-family detached dwelling unit.
That is a meaningful change from older zoning codes that only allowed second dwelling units through a narrow family-apartment or conversion process.
The final signed ordinance should be your first document
Although the adoption status is now clear, the public zoning pages available during this review had not yet consolidated the new ADU standards into a simple standalone section that exposed every detail.
For that reason, this guide does not invent Taneytown-specific figures for:
- maximum ADU square footage;
- owner-occupancy requirements;
- bedroom limits;
- parking-space counts;
- detached-unit height;
- front-yard placement; or
- utility-metering requirements.
Ask the City for the final signed Ordinance 10-2026 and any staff implementation sheet before selecting a legal floor plan.
Maryland’s 75% rule still sets the statewide ceiling framework
Maryland’s current ADU law defines an ADU as a secondary dwelling unit on the same lot as a primary single-family detached dwelling and allows the ADU to be up to 75% of the size of the primary dwelling.
The Maryland Department of Planning says covered jurisdictions may not impose a lower local maximum.
When reviewing Taneytown’s final ordinance, homeowners should check:
- how the City measures the primary dwelling;
- whether it uses gross floor area, livable floor area or another measure;
- whether attached and detached ADUs use the same calculation;
- whether an absolute square-foot cap appears in the final ordinance; and
- whether any such cap is consistent with Maryland’s 75% rule.
Use our Maryland ADU size guide to understand the statewide framework, then confirm Taneytown’s final calculation method.
Taneytown’s existing accessory-structure rule gives us a setback benchmark
Taneytown’s existing § 205-24 says an accessory structure generally:
- may not be within a front yard;
- must be at least 5 feet from any other property line;
- may not exceed 15 feet in height; and
- may not occupy more than 30% of the required rear yard.
Maryland’s current ADU law says local side and rear ADU setbacks may not be more restrictive than existing accessory-structure setbacks.
For a detached ADU, the existing 5-foot property-line standard is therefore an important benchmark to compare against the final Ordinance 10-2026.
Do not assume every accessory-structure rule automatically applies unchanged to an ADU. The new ordinance may create separate height, placement, lot-coverage or design standards.
Taneytown completed ADU parking-study work before adoption
Taneytown’s 2026 Council records show that the City approved an in-house parking study for accessory dwelling units during the ordinance-development process.
That is important because Maryland requires a parking study if a local government wants to impose additional off-street parking requirements specifically on ADUs.
Maryland law also requires a waiver process where such additional ADU parking is imposed.
Ask the City:
- whether Ordinance 10-2026 requires a dedicated ADU parking space;
- how on-street parking is treated;
- whether the approved parking study changed the final ordinance language; and
- what parking-waiver procedure is available.
Taneytown’s existing dwelling minimums are not automatically ADU minimums
The City’s older zoning code has minimum floor-area standards for ordinary dwelling types. For example, current § 205-32 lists minimum floor areas for single-family homes, garden apartments and conversion apartments.
Those older minimums should not automatically be applied to an ADU unless the final Ordinance 10-2026 says they apply. Maryland’s ADU law created a distinct secondary-dwelling framework, so the City’s new ordinance should be used for the ADU-specific minimum and maximum size rules.
A detached ADU may still need building separation, fire access and utility review
Taneytown’s zoning code requires structures to be placed so they have safe and convenient access for servicing, fire protection and required parking.
For a detached ADU, ask the City and building-permit authority to confirm:
- minimum separation from the primary house;
- fire-resistance requirements;
- emergency access;
- water and sewer service capacity;
- whether a separate meter or lateral is required;
- electrical and plumbing permits; and
- final occupancy requirements.
Existing accessory buildings can affect the site plan
A detached garage, shed, pool house or other accessory structure already occupies part of the rear yard and counts toward site coverage.
Because Taneytown’s general accessory rule limits accessory structures to 30% of the required rear yard, existing structures can reduce the practical space available for a detached ADU even before other zoning standards are applied.
Bring an accurate survey or scaled site plan showing all existing buildings before asking the City to confirm feasibility.
The ordinance timeline is worth noting
Taneytown worked on Ordinance 10-2026 throughout 2026. Planning Commission and Council materials show repeated review of the measure, a public hearing in September and final adoption listed in the zoning code on September 14.
That timing is important because Maryland requires municipalities with planning and zoning authority to adopt a local ADU law by October 1, 2026. Taneytown’s adoption came just ahead of that statewide deadline.
Do not use Carroll County ADU rules for an in-City Taneytown parcel
Taneytown has its own municipal zoning authority. Carroll County ADU zoning should not automatically be applied to property inside the City.
For property outside Taneytown’s corporate limits, use our Carroll County ADU Rules guide. For an in-City parcel, begin with Taneytown Planning & Zoning.
What to ask Taneytown before paying for plans
- Can I get the final signed Ordinance 10-2026?
- What is the ordinance’s effective date?
- Which zoning districts or lot types are eligible?
- Are internal, attached and detached ADUs all allowed?
- What maximum ADU size and measurement method apply?
- Is there a minimum ADU size?
- What side and rear setbacks apply to detached units?
- What height and rear-yard coverage limits apply?
- What building separation is required?
- What parking requirement applies?
- What parking-waiver process applies?
- Is owner occupancy required?
- Can an existing garage or accessory structure be converted?
- What water/sewer capacity or connection requirements apply?
- What zoning, building, electrical, plumbing and occupancy permits are required?
Taneytown homeowner checklist
- Confirm the property is inside Taneytown City limits.
- Verify the zoning district.
- Obtain the final signed Ordinance 10-2026.
- Confirm the ordinance effective date.
- Determine whether the ADU will be internal, attached or detached.
- Verify the legal size and measurement method.
- For a detached unit, compare final ADU setbacks with the existing 5-ft accessory-structure benchmark.
- Check height and rear-yard coverage.
- Confirm parking and any waiver procedure.
- Ask about water/sewer capacity and service requirements.
- Prepare an accurate survey or site plan.
- Map the zoning, building and trade-permit sequence before construction.
Taneytown MD ADU FAQs
Has Taneytown adopted an ADU ordinance?
Yes. Taneytown’s current zoning code lists Ordinance No. 10-2026 as adopted September 14, 2026.
What does Ordinance 10-2026 do?
City public-hearing materials describe the ordinance as amending the zoning code to include and designate ADUs as a permitted use on lots with an existing single-family detached dwelling. Ask the City for the final signed ordinance for the complete standards.
What are Taneytown’s accessory-building setbacks?
The existing general rule requires accessory structures to be at least 5 feet from other property lines and outside the front yard. Maryland law says side and rear ADU setbacks may not be more restrictive than existing accessory-structure setbacks, so this is an important benchmark for a detached ADU.
How tall can a Taneytown accessory structure be?
The current general accessory-structure rule uses a 15-foot height maximum. Confirm whether Ordinance 10-2026 creates a separate ADU height rule.
Does Taneytown require extra ADU parking?
The City completed ADU parking-study work during the ordinance process. Ask for the final Ordinance 10-2026 parking standard and waiver procedure rather than relying on an earlier draft.
Who should I contact about a Taneytown ADU?
Start with the City of Taneytown Planning & Zoning Department at City Hall, 17 E. Baltimore Street, Taneytown, Maryland 21787. The City lists 410-751-1100 as the main number.
Primary sources checked
- City of Taneytown — Chapter 205 Zoning / Ordinance 10-2026 adoption listing and accessory-structure rules
- City of Taneytown — Chapter 205 Zoning
- City of Taneytown — official website and 2026 meeting notices
- Maryland Department of Planning — HB 1466 ADU FAQ
- Maryland Land Use § 4-504
Maryland ADU Guide is an independent research publication, not the City of Taneytown, Carroll County, a law firm, architect or contractor. This page reports Taneytown’s verified September 14, 2026 adoption of Ordinance 10-2026, the City’s existing accessory-structure standards and Maryland’s statewide ADU requirements. Obtain the final signed ordinance and parcel-specific permit requirements before spending money on design or construction.
What to do next
Get the final Ordinance 10-2026 text before choosing an ADU size, parking plan or detached-unit location.
- Confirm who reviews the property.
- Ask Taneytown Planning & Zoning for the final signed ADU ordinance and effective date.
- Gather your zoning district, survey, existing accessory structures and utility information.
- Continue to the Maryland ADU planning tools.
Planning guidance is not permit approval.