Critical Area Commission for the Chesapeake and Atlantic Coastal Bays

Chesapeake Bay Critical Area Mapping Frequently Asked Questions


What does it mean to me if I received a letter referring to the Critical Area Map Update stating that the draft maps show a change in the Critical Area boundary on my property?

The letter means that the location of the Critical Area boundary line is being changed on your property and that at least a portion of your property will be subject to the State-mandated Chesapeake and Atlantic Costal Bays Critical Area Law.

What is the County going to do on my property?

The County is not making any physical changes to your property. The Critical Area boundary is a line on a map, just like a zoning line.

Will the mapping change impact my flood insurance?

The mapping change will not affect flood insurance.

Will the mapping change affect the value of my property?

The mapping change will not affect your property value.

Will the mapping change increase my property taxes?

The mapping change will not affect your taxes.

Are my existing structures grandfathered?

Yes. The existing structures and other items on your property making up the lot coverage (formerly impervious surfaces) are grandfathered and do not have to be removed.

Do I need to do anything now because of the mapping change?

The mapping change does not require that you do anything right now; however, if you apply for a building permit in the future, you will be subject to the State-mandated Chesapeake and Atlantic Coastal Bays Critical Area Law for the portion of your property that will be in the Critical Area. We encourage you to look at the maps online or at one of the public meetings so that you know where the Critical Area boundary will be on your property.

The online mapping tool can be found at: http://webmaps.esrgc.org/cbca/desktop/index

We also encourage you to call your local planning office if you have any questions. Click here for local contact information.

Last Updated May 15, 2014

Critical Area Mapping Update Presentation October 2014

Click here to View Presentation about the Critical Area Mapping Update presented in Queen Anne's County as part of the public information meeting process.
(9 MB .pdf file)

For general questions ...

... or information about the Critical Area Program or questions relating to State oversight of local programs, e-mail Lisa.Hoerger@maryland.gov or call 410-260-3460.

Critical Area Commissison address & phone number

Cover of Bay Smart Guide, links to web content
A Citizen's Guide to
Maryland's Critical Area Program