Baltimore County Permits: Where to Apply and Get Inspections
The Baltimore County Department of Permits, Approvals and Inspections (PAI) handles building permits, construction inspections, zoning reviews, and related development approvals in Baltimore County, Maryland.
Most construction permit applications are submitted through the County’s online permit portal. For building permit questions, contact Permit Processing at 410-887-3900. For building inspection assistance, call 410-887-3953.
Important: Baltimore County and Baltimore City are separate permitting jurisdictions. This guide covers Baltimore County properties, including communities such as Towson, Catonsville, Dundalk, Pikesville, Essex, and Parkville.
Baltimore County Building Department Contact Information
Office visiting hours and counter availability should be confirmed before traveling to Towson. Some services require an online application or advance coordination.
Official Permit, Inspection and Records Links
Which Building Permits Are Required?
Baltimore County generally requires permits for regulated construction, building alterations, additions, demolition, and certain mechanical, electrical, and plumbing work. Whether a permit is needed depends on the project and applicable exemptions.
| Project | What to Check |
|---|---|
| New Homes | Building permit, construction drawings, site plans, zoning, utilities, and required reviews. |
| Home Additions | Building permit, setbacks, structural plans, and possible grading or trade permits. |
| Decks and Porches | Permit, footing specifications, structural connections, setbacks, and inspections. |
| Garages and Sheds | Structure size, location, foundation, setbacks, and applicable permit exemptions. |
| Roofing and Renovations | Whether structural elements or regulated building systems will be altered. |
| Electrical Work | Electrical permit and applicable contractor licensing or registration. |
| Plumbing and Gas | Plumbing or gasfitting permit, qualified installer, and required testing. |
| HVAC Systems | Applicable mechanical, electrical, and fuel-gas permit requirements. |
| Swimming Pools | Pool permit requirements, safety barriers, electrical work, and zoning. |
| Commercial Construction | Building plans, occupancy classification, accessibility, fire protection, and required agency approvals. |
Practical tip: Do not assume a small shed, fence, roof replacement, or interior renovation is exempt. Describe the work and provide the property address to Permit Processing before beginning construction.
How to Apply for a Baltimore County Building Permit
Construction applications are handled through the County’s permit application system. Have your project information ready before creating an application.
- Open the official permit portal. Visit Baltimore County Online Permit Portal and select Create Account if you are a new user.
- Create your account and sign in. Enter your email address, complete the registration process, and sign in using your credentials.
- Select the appropriate permit application. Choose the available category matching your project, such as new construction, an addition, or another regulated activity.
- Provide project and property details. Enter the property address, description of work, owner information, and required contractor information.
- Upload plans and supporting documents. Attach the applicable site plan, construction drawings, authorization letters, and other documents requested for your permit type.
- Submit and follow the review process. Respond to correction requests, pay assessed fees through the County’s authorized process, and wait for permit issuance before starting regulated work.
Documents to Prepare Before Applying
The exact document package varies by permit type. Preparing the following information can prevent avoidable review delays.
- Property information: Street address, property identification, owner name, and project location.
- Project description: Scope of work, existing conditions, proposed construction, and intended use.
- Site or plot plan: Property boundaries, building placement, dimensions, and setbacks when applicable.
- Construction drawings: Floor plans, framing details, elevations, and technical specifications appropriate to the work.
- Contractor details: Relevant Maryland licensing, registration, and trade credentials where required.
- Other approvals: Zoning relief, environmental review, grading, stormwater, well, septic, or utility approvals if applicable.
For a new home using a private well or septic system, additional environmental approvals and an acceptable site layout may be required. The County provides a building with well and septic guide (PDF) explaining this process.
How to Schedule Building Inspections
Required inspections depend on the permit and construction stage. The permit holder is responsible for arranging inspections before work requiring inspection is concealed.
- Locate your issued permit number and approved plans.
- Identify the inspection needed for the current stage of construction.
- Contact Baltimore County Building Inspections at 410-887-3953 to confirm the current scheduling method, available dates, and instructions.
- Make the work area accessible and have approved documents available as required.
- Review the inspection result and correct any deficiencies before requesting reinspection.
Common Construction Inspection Stages
| Inspection | Typical Timing |
|---|---|
| Footings / Foundation | Before concrete placement or concealment, as directed by the approved inspection sequence. |
| Framing | After framing is installed and before required structural elements are covered. |
| Electrical / Plumbing / Mechanical | At required rough-in, testing, or final stages. |
| Final Building Inspection | After required construction and preceding inspections are complete. |
For example, the County’s deck construction guidance (PDF) identifies footing, applicable framing, and completion inspections. Your issued permit and approved plans determine the actual required inspections.
How to Check a Building Permit’s Status
Baltimore County provides a public geographic permit-search system for reviewing available permit records.
- Open the Baltimore County Permit Search map.
- Read the warranty and disclaimer, then accept the conditions to continue.
- Use the available search tools to locate a property or permit record.
- Review the displayed permit information and available status details.
- For missing records or clarification, contact Permit Processing at 410-887-3900.
The County also publishes a Permit Search Guide (PDF) with illustrated instructions. Public search results may not include every document or recent update. Applicants should also check their portal account.
Baltimore County Building Permit Fees
Permit costs depend on the scope of construction, building classification, project size, and applicable reviews. Building permit charges may differ from plan-review fees, trade permit charges, and development-related fees.
The County publishes a building permit fee schedule, but the located PDF states an effective date of November 26, 2018. Its figures should not automatically be treated as current 2026 charges.
To confirm your project cost: Describe the proposed work, provide the construction area or other required measurements, and ask Permit Processing at 410-887-3900 which fee schedule applies. Review the fees assessed in the official application system before paying.
Review periods also vary. No single processing time is guaranteed for every residential or commercial project, particularly when revisions, zoning issues, or additional agency approvals are needed.
Building Codes Applicable in Baltimore County
Baltimore County adopts building and related construction codes with local amendments. The County’s published code reference identifies these editions:
| Code | Published Adopted Edition |
|---|---|
| International Building Code (IBC) | 2021 |
| International Residential Code (IRC) | 2021 |
| International Mechanical Code (IMC) | 2021 |
| International Plumbing Code (IPC) | 2021 |
| International Energy Conservation Code (IECC) | 2021 |
| International Swimming Pool and Spa Code (ISPSC) | 2021 |
| National Electrical Code (NEC) | 2023 edition identified in the County reference |
The County’s September 2024 code reference identifies Bill 49-24 for several adopted building codes and Bill 94-23 for plumbing. State requirements and local amendments must be considered alongside the base code editions.
Before designing or filing construction plans, consult the County’s official current-code reference (PDF) and confirm whether subsequent amendments affect your project.
Other Services Handled by the Department
PAI’s responsibilities extend beyond ordinary building permits.
- Zoning review: Setbacks, property-use requirements, and related zoning questions. Call 410-887-3391.
- Code enforcement: Complaints involving applicable building, property, or zoning requirements. Call 410-887-3351.
- Development plans review: Site development, grading, utility connections, and coordinated agency approvals.
- Occupancy documentation: Applicable use-and-occupancy requirements and building compliance records.
- Miscellaneous permits and licenses: Separate county-regulated activities administered through the relevant licensing division.
For miscellaneous licenses, visit the official miscellaneous permits page. These applications may use different submission requirements from construction permits.
Common Problems and What to Do
| Problem | Recommended Action |
|---|---|
| Application returned as incomplete | Read the review comments, upload missing documents, and resubmit through the instructed process. |
| Permit approval delayed | Check whether zoning, plans review, environmental, or utility approval remains outstanding. |
| Inspection not approved | Review the identified deficiencies, correct the work, and request the required reinspection. |
| Permit record not found | Check the property information, search again, or contact Permit Processing. |
| Work began without approval | Stop unpermitted regulated work and contact the County about corrective permitting requirements. |
| Property has a zoning issue | Consult Zoning Review before revising plans or assuming the project can proceed. |
For projects in Anne Arundel County, use our Anne Arundel County permit and inspection guide instead. Maryland counties maintain separate application systems and inspection contacts.
Frequently Asked Questions
1. What is the official Baltimore County building department?
The responsible agency is the Baltimore County Department of Permits, Approvals and Inspections (PAI). It handles building permits, inspections, zoning reviews, and related county construction services.
2. How do I apply for a Baltimore County building permit online?
Open the official Baltimore County permit portal, create an account, select the appropriate application, enter your project details, upload required documents, and submit the application for review.
3. What documents do I need for a building permit?
Requirements depend on the project. You may need property information, site plans, construction drawings, contractor credentials, owner authorization, and applicable zoning or environmental approvals.
4. Do decks, fences, and sheds require building permits?
Permit requirements depend on the structure, dimensions, location, and applicable exemptions. Baltimore County provides specific deck guidance. Contact Permit Processing before assuming that a fence or accessory structure is exempt.
5. Can a homeowner apply for a building permit?
A homeowner may be eligible to apply for certain work, subject to the permit category and applicable rules. Contractor licensing, owner-builder documentation, and trade restrictions may apply. Confirm eligibility before submitting.
6. How much does a Baltimore County building permit cost?
Fees vary by project type, construction scope, and required reviews. The published fee PDF located during research is dated 2018, so request confirmation of the current applicable fee from Permit Processing.
7. How do I schedule a Baltimore County building inspection?
Have your issued permit number and required inspection type ready. Contact Building Inspections at 410-887-3953 to confirm scheduling instructions and inspection availability.
8. How can I check whether a building permit was issued?
Use the official Baltimore County Permit Search map to find available records. Applicants can also review their portal information or contact Permit Processing if the displayed status is unclear.
9. Which building codes apply in Baltimore County in 2026?
The County’s published reference identifies the 2021 IBC, IRC, IMC, IPC, and IECC, together with local amendments. It also identifies the 2023 NEC. Confirm subsequent amendments and the applicable code edition for your permit.
10. What happens if construction starts without a required permit?
Unpermitted construction may require investigation, corrective permits, additional fees, inspections, or work modifications. Stop regulated work and contact Baltimore County PAI for instructions on resolving the situation.
Official Sources and Documents
- Baltimore County — Department of Permits, Approvals and Inspections
- Baltimore County — Online Permit Application Portal
- Baltimore County — Permit Search Guide (PDF)
- Baltimore County — Current Building and Fire Codes (PDF)
- Baltimore County — Published Building Permit Fee Schedule (PDF)
- Baltimore County — Deck Construction Guidelines (PDF)
- Baltimore County — Code of Ordinances
Information reviewed: October 9, 2026. Published government documents may have earlier revision dates. Permit requirements, fees, contact procedures, and adopted regulations may change.
Independent resource: USBuilding.org is not affiliated with Baltimore County Government. This guide provides public information and does not issue permits, approve construction, or schedule government inspections.