Broomfield County, CO zoning map, flood zone and property lines by address
Free, no account. Or open the Colorado map and tap a lot.
Towns in Broomfield County: Broomfield.
Property lines
The parcel outline, parcel number and mapped size come from the Colorado public parcel layer (Governor's Office of Information Technology, from the counties that share their parcels), so a Broomfield lot shows the same lines the county assessor draws. Broomfield County covers about 21,099 acres of land and 371 acres of water.
Mapped lines are approximate. The Broomfield County assessor keeps the parcel record (Broomfield County website); a licensed surveyor sets the true corners.
Zoning
Broomfield County zones its unincorporated land, and Broomfield zones the land inside its limits. ParcelSheet shows the use the county assessor lists for the lot and links the county planning office for the district, the uses it allows and the lot size it needs.
ADU and guest houses
Under Colorado's county and city zoning powers (C.R.S. Title 30, Article 28, and Title 31, Article 23), local governments can allow an accessory dwelling unit on a lot with a house. Whether a Broomfield lot can add one depends on its district; the county planning office has the rule. ParcelSheet shows the mapped lot size and the ground's slope, the first two things the question turns on.
Setbacks
Setbacks in Broomfield County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; the county zoning office gives them for the lot's district, and Broomfield for land inside its limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Broomfield lot and the Forest Service wildfire hazard rating at it.
Questions
How do I find property lines in Broomfield County?
Open the Colorado map, type the address, and the parcel outline from the Broomfield County assessor shows on the map with its parcel number and mapped size. Mapped lines are approximate; only a licensed surveyor sets the true corners.
What is my property zoned in Broomfield County?
Zoning in Broomfield County is set by the county for unincorporated land and by each city (such as Broomfield) inside its own limits. ParcelSheet shows the use code the county assessor lists and links the office that sets the zoning; the planning office has the final word.
Can I build an ADU in Broomfield County?
Under Colorado's county and city zoning powers (C.R.S. Title 30, Article 28, and Title 31, Article 23), counties and cities can allow an accessory dwelling unit, and each sets its own rules. In Broomfield County ask the zoning office for the lot's district first; ParcelSheet shows the lot size as mapped so you can see the room you have.
What can I build on 5 acres in Broomfield County?
Zoning in Broomfield County is set by the county for unincorporated land and each city inside its own limits (such as Broomfield). The zoning district decides the uses, how many homes and the smallest lot it allows on 5 acres. ParcelSheet shows the lot size as mapped and the use code on the parcel record; the planning office has the district and its rules. See the Broomfield County website.
What are the residential setbacks in Broomfield County (2026)?
Setbacks in Broomfield County come from the zoning code of the county, or of the city when the lot is inside city limits: the front, side and rear distances depend on the lot's district. ParcelSheet does not draw setback lines or give a number it did not read; the zoning office gives them for the district. See the Broomfield County website.
Next to Broomfield County: Adams County, Boulder County, Jefferson County, Weld County.
The Colorado map · All Colorado counties · Flood zones explained · FIRM panels and LOMAs · All 50 states