🦀 Maryland Building Permits

Maryland Building Permit Guide

Maryland counties tend to have strict residential permit requirements. Montgomery County's 120 sq ft shed threshold and Prince George's County's no-exemption rule make them two of the stricter jurisdictions in the mid-Atlantic.

Use Permit Checker →

Maryland County Guides

Browse by County

Maryland

Montgomery County

120 sq ft threshold. All decks require permits. Environmental overlays add extra review steps near streams.

Read guide →
Maryland

Prince George's County

No size exemption — all sheds require a permit. Similar to Cherokee County in Georgia.

Read guide →

Project Guides for Maryland

Permit Guides by Project Type

Shed Permits

Size thresholds by county

Read →

Deck Permits

When every deck needs a permit

Read →

Fence Permits

Height limits and setback rules

Read →

Pool Permits

All pools require permits

Read →

Home Additions

Room additions and conversions

Read →

Unpermitted Work

How to fix it before you sell

Read →