Obtain a Subdivision Plat Online

The Maryland State Archives (http://www.mdarchives.state.md.us/) has developed a system called Plats.net that provides access to the Digital Image Reference System for Land Survey, Subdivision, and Condominium Plats. In order to find a plat online you will need to know the plat reference number OR Section, Block and Lot numbers.

Before you begin the directions we STRONGLY recommend you read through the beginner's guide at www.plato.mdarchives.state.md.us/msa/stagser/s1500/s1529/cfm/platstart.html.

Specifically pay attention to the last paragraph which states, "The first step to locate a plat online is to visit the State Department of Assessments and Taxation Real Property Search website. Follow the directions on the Real Property Search to search for the address of the plat you wish to research. The page returns the deed reference, name of the subdivision, lot number, and plat reference among other information. Once you have obtained the plat reference, go back to the plats.net website and search by the plat reference. If the SDAT site does not include a plat citation, use the "advanced search" option on plats.net to search by subdivision name. If you are still unable to find a plat by looking for the subdivision name, you can go back through the deeds and check if there is any plat reference cited in earlier land records." (c) Copyright Maryland State Archives

The following steps will guide you through the process on how to acquire the plat reference number and the subdivision plat online:


Go to the State Department of Assessments and Taxation ("SDAT") Real Property Search website at http://sdatcert3.resiusa.org/rp_rewrite/, select the County you wish to search in and choose the "Street Address" method of searching.


A screen will appear that allows you to type in the street address and number. Once you have entered the correct information, a page will appear with information regarding the property. Look at the box called "Location & Structure Information" for the Plat number, Section, Block and Lot numbers. We STRONGLY recommend you print out this page for future reference since you will need either the plat number OR section, block and lot numbers.

***(NOTE: If you search by just street name a screen will appear with a list of names. Select the correct owner name. As stated above, the page with plat reference should now appear. Also, on occasion the subject property's plat number will not be available with the specific street number used in your search criteria. You may find it easier to type in the street name only which will bring up all of the properties on that specific street. You can randomly select various properties and should be able to obtain the Plat number from at least one of the records. It is the subdivision plat you are looking for, so it does not make a difference which record you obtain your plat number from. Either way you should now have the plat number. If not, MAKE SURE YOU HOLD ONTO THE SECTION, BLOCK AND LOT NUMBERS.)***


Go to www.plats.net through Internet Explorer and select the County you wish to search in. You may need to enter a username and password, which is USERNAME: plato; PASSWORD: plato#. (Note that username and password are in lower case).


Click on the County you wish to search in. Next click on the link that says County Land Survey, Subdivision, and Condominium Plats. In the Plat Number box entered the plat number you just obtained from SDAT and click search. (NOTE: If you do not have the plat number you will need to use the ADVANCED SEARCH OPTION explained below).


A screen will appear with a description of the property (subdivision, block number, etc.). If you see more than one property description, make sure you choose the one with the correct subdivision. Click on the box entitled "Accession Number."


A screen will appear called Index by Reference. To access the actual plat you must click on the underlined link next to "Image(s)." We recommend you open the file and do not save it to your computer because these files are extremely large and will take up too much space in your system.


Print out the subdivision plat. This may take a little while depending on the speed of your computer.


STEP ONE: Follow Steps One through Three above.

STEP TWO: Click on the County you wish to search in. Next click on the link that says County Land Survey, Subdivision, and Condominium Plats.

STEP THREE: Click on the "Advanced Search" button (located under the word condominium). A screen will appear title "Advanced Search." In the "Description" box fill in the name of the Subdivision you are searching for and leave all other boxes blank. Click the Search button.

STEP FOUR: All subdivisions plats for that subdivision will appear. Locate the Section, Block and Lot for you're particular listing (under the "Description" heading).

STEP FIVE: Click on the "Accession Number" located on the same line as the correct "description" of the listing.

STEP SIX: Follows Steps Six and Seven above.

***NOTE: Unfortunately not all plat reference numbers are available online yet, so you may have to search by the subdivision name by using the "Advanced Search Option" directions. If you are still having trouble, we strongly recommend you speak with the Maryland State Archives Geographic Services Department (www.mdarchives.state.md.us) at MD toll-free (800) 235-4045 or email at archives@mdarchives.state.md.us. You can also click here to access the FAQs page for further information on the electronic system.

Finally, if they are unable to help you locate the plat, you will have to purchase the subdivision plat at the Montgomery County Department of Park and Planning located at 8787 Georgia Avenue, right next door to GCAAR's offices. Please visit the Park and Planning's Web site at http://www.mc-mncppc.org/info/get_maps.shtm for information on how to obtain the plats.***