Pools and hot tubs in Montgomery County, MD
Pools and hot tubs need a DPS permit unless the pool is prefabricated and under 18 in deep. A pool is an accessory structure and follows the zone's accessory setbacks.
A person last checked these rules on October 20, 2026. This is guidance only, so confirm with Montgomery County before you build.
The details
- A big excavation can cross the 100 cubic yard line and need a sediment control permit on its own.High confidence
- Pool equipment counts as residential mechanical equipment, which may project up to 5 ft into a front or rear setback.Medium confidence
Check a project at your address
SetbackIQ reads the zoning, flood zone, historic district, and environmental maps for your lot. Then it applies these rules.
Common questions
- How far from the lot line can a pool go, and what permits does it need in Montgomery County?
- Pools and hot tubs need a DPS permit unless the pool is prefabricated and under 18 in deep. A pool is an accessory structure and follows the zone's accessory setbacks.
Sources
- Montgomery County DPS, Permits Required list (land disturbance). Checked 2026-10-21
Land Disturbance (greater than 5,000 square feet or 100 cubic yards or more of earth movement) [likely requires a permit].
- Montgomery County Zoning Ordinance (Chapter 59), Articles 59-3, 59-4 and 59-6 (Zoneomics copy of the official American Legal text). Checked 2026-10-21
[6.4.3.C] Fences, walls and other visual obstructions [on corner lots in Residential zones] are limited to 3 feet above curb level for 15 feet from the intersection of the front and side street lines... [4.1.7.B.5] Residential mechanical equipment, includin…
Disclaimer: This is general information, not legal or professional advice for any one property. Codes change. SetbackIQ is not a zoning determination, a permit, or a survey, and it does not replace an architect, engineer, or lawyer. Confirm with your building and zoning offices before you build, buy, or sign a contract.