Zoning, building permits and septic rules in Walsenburg, Colorado

At a glance

Building permit

Issued by the City of Walsenburg Building Department inside city limits¹

Building code

International Residential Code adopted for one- and two-family homes, with local amendments⁶

Zoning

City districts A-O, R-0, R-1, R-2 and M-1; city site says the zoning chapter is not yet legally adopted⁷⁵

Minimum home size

850 sq ft in R-1; 800 sq ft in A-O⁸⁹

RV living

Not allowed outside a permitted RV park or campground⁴

Septic permits

Las Animas-Huerfano Counties District Health Department³

Wells

State well permit required for a new well¹⁰

Who to call

Contact details are copied from each office’s official page and were checked against it on October 16, 2026.

Does Walsenburg, Colorado have zoning?

Yes, with a caveat. Walsenburg's municipal code divides the city into five districts: A-O agricultural-open, R-0 large lot residential, R-1 low density residential, R-2 medium and high density residential, and M-1 mobile home low density residential⁷. The code sets rules by district. In R-1, a single-family lot needs 6,000 square feet, a home needs at least 850 square feet, and structures top out at 35 feet¹¹⁸¹². In A-O, each dwelling needs one acre and at least 800 square feet of floor area¹³⁹. Side yards in A-O are at least 10 feet on each side¹⁴.

The caveat: the city's planning page labels its zoning ordinance as guidance that "has not yet been legally adopted"⁵. Ask the Planning and Zoning Commission which map and rules apply to the exact parcel before you rely on any number here.

Do you need a building permit in Walsenburg, and who issues it?

Inside Walsenburg, the City of Walsenburg Building Department runs the permit process: it handles applications, fees and permit issuance¹. The city has adopted the International Residential Code for one- and two-family homes, with local amendments⁶. The same office does the inspections, including footings, foundations and framing¹.

Certificates of occupancy and permits are issued under the city's adopted codes¹. We could not confirm the city's permit fee schedule, whether owner-builders have a separate path, or the exact inspection sequence; ask the Building Department. Huerfano County's Land Use and Building office serves unincorporated land, not addresses inside the city.

How do septic permits work inside Walsenburg?

Septic permits are not a city function. The Las Animas-Huerfano Counties District Health Department oversees on-site wastewater treatment system (OWTS) permitting, installer licensing and septic records for Huerfano County³. Installing an onsite system in Huerfano County requires a permit¹⁵.

Whether a particular lot inside Walsenburg can connect to city sewer, or would need its own septic system, is something we could not confirm. Ask the health department before you commit to a lot³, and ask the Building Department what the city requires for utility connections¹.

Can you live in an RV or tiny home in Walsenburg?

RVs: not on a vacant lot. The city code bars anyone from maintaining a trailer, coach, mobile home, motor home or recreational equipment for living, sleeping, housekeeping or preparing food except within a permitted RV park or campground⁴. A short stay on the street does not change that; the parking allowance does not permit use in violation of the living ban¹⁶.

Mobile homes: the M-1 mobile home district requires every mobile home to connect to existing city utilities, including sewer, water, electricity and natural gas¹⁷. M-1 homes need at least 500 square feet of floor area¹⁸. How mobile homes are treated in other districts was not determined.

Tiny homes: the planning page lists a "tiny homes" ordinance, but we could not confirm what it allows. Ask the Building Department before you buy.

Building a home in Walsenburg: the steps, in order

1. Ask the Planning and Zoning Commission which district the parcel is in and whether the zoning rules apply as written⁵.
2. Check the district's minimum lot, floor area and setback numbers against your plan⁷.
3. Call the Las Animas-Huerfano Counties District Health Department about septic or sewer connection³.
4. Apply for a building permit with the City of Walsenburg Building Department¹.
5. Schedule inspections as work proceeds¹.
6. Request a certificate of occupancy before moving in¹.

What stays with Huerfano County, and what to check before you buy

The county's rules apply to land outside city limits. Unincorporated Huerfano County requires building permits through its own Land Use and Building office¹⁹, so confirm whether a parcel is inside the city before asking either office. For land outside the city, see the Huerfano County page.

Septic permits come from the health district whether a lot is in the city or not³. A new well needs a Colorado well permit¹⁰, and access onto a state highway needs a state access permit²⁰. Huerfano County's soils rate poorly for conventional drain fields: only about 24% are rated not limited, so expect a site evaluation if a lot needs septic²¹.

Watch-outs

• The city's planning page says its zoning ordinance has not yet been legally adopted, so confirm the rules and map for any parcel with the Planning and Zoning Commission⁵.
• Living in an RV on a lot inside the city is barred outside a permitted RV park, even though county land elsewhere may differ⁴.
• Beginning October 12, 2026, certain property transfers involving a septic system are subject to transfer of title requirements; ask the health district³.

Sources

1. City of Walsenburg Building Department (walsenburg.org)
2. Walsenburg Municipal Code Sec. 16-4-220 R-1 uses permitted by right (Walsenburg), quoted and re-checked
3. Las Animas-Huerfano Counties District Health Department (la-h-health.colorado.gov)
4. Walsenburg Municipal Code Sec. 11-5-150 Oversized and recreational vehicle parking limitations (Walsenburg), quoted and re-checked
5. City of Walsenburg Planning and Zoning Commission (walsenburg.org)
6. Walsenburg Municipal Code Sec. 18-9-10 Residential code adoption (Walsenburg), quoted and re-checked
7. Walsenburg Municipal Code Sec. 16-4-150 R-0 uses permitted by right (Walsenburg), quoted and re-checked
8. Walsenburg Municipal Code Sec. 16-4-250 R-1 property development standards (Walsenburg), quoted and re-checked
9. Walsenburg Municipal Code Sec. 16-4-110 A-O property development standards (Walsenburg), quoted and re-checked
10. Water Administration (Colorado statewide rule), quoted and re-checked
11. Walsenburg Municipal Code Sec. 16-4-250 R-1 property development standards (Walsenburg), quoted and re-checked
12. Walsenburg Municipal Code Sec. 16-4-250 R-1 property development standards (Walsenburg), quoted and re-checked
13. Walsenburg Municipal Code Sec. 16-4-110 A-O property development standards (Walsenburg), quoted and re-checked
14. Walsenburg Municipal Code Sec. 16-4-110 A-O property development standards (Walsenburg), quoted and re-checked
15. On-Site Wastewater Treatment Systems (OWTS) Program, quoted and re-checked
16. Walsenburg Municipal Code Sec. 11-5-150 Oversized and recreational vehicle parking limitations (Walsenburg), quoted and re-checked
17. Walsenburg Municipal Code Sec. 16-4-380 M-1 area regulations (Walsenburg), quoted and re-checked
18. Walsenburg Municipal Code Sec. 16-4-380 M-1 area regulations (Walsenburg), quoted and re-checked
19. Land Use and Building - Huerfano County Government, quoted and re-checked
20. Access Permits | Frequently Asked Questions (Colorado statewide rule), quoted and re-checked
21. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data

Written October 16, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.