Sedalia is an unincorporated community of 177 residents (2020 Census) at 5,824 feet, on US-85 about eight miles from Castle Rock and roughly 24 miles from downtown Denver. Its post office has operated since 1872. Douglas County’s comprehensive plan treats Sedalia as one of the county’s distinct rural communities, and the land around it is zoned for it: Large Rural Residential at a 35-acre minimum and Rural Residential at 2.5 acres.
Everything Here Permits Through Douglas County
Sedalia is unincorporated, so there is no town building department. Building permits and inspections come from the Douglas County Building Division, part of Public Works Engineering, at 100 Third Street, Suite 020 in Castle Rock, reachable at 303-660-7497.
That is a simpler path than the towns nearby — one authority for the building permit — but the site work is where rural projects get complicated, because water and wastewater are permitted by two other bodies entirely.
Wells, Septic and Fixture Count
Rural communities like Sedalia run on private wells and on-site wastewater systems rather than municipal water and sewer. Septic systems are permitted, site-plan reviewed and inspected by the Douglas County Health Department’s environmental health section. Wells are permitted by the Colorado Division of Water Resources, the state engineer’s office, with roughly 8,500 domestic wells recorded across Douglas County.
Any remodel that adds fixtures runs into that first. A bathroom addition, a basement finish with a bar sink, an expanded kitchen — each changes the load on a system that was sized for the original house. We get the septic capacity answered before layout, because redesigning around it later costs far more than checking early.
Wildfire, Soils and Large-Lot Logistics
Unincorporated Douglas County is covered by a wildfire hazard overlay district map, with recommended construction materials for hazard areas: 1/8-inch ember-resistant vent screening, non-combustible materials, and an assessment covering the first 100 feet around the structure. On a wooded rural parcel that shapes siding, roofing, vents and eave detailing.
Foundations are governed by expansive soils. Douglas County’s residential plan review requires special foundation design where they are present — non-bearing slab-on-grade framing that lets the slab move independently, and foundation drains where required. Add the 35-acre and 2.5-acre lot minimums and you get long driveways and long utility runs, which is a delivery and staging question as much as a construction one on a property this far from the metro yards.
Services We Provide in Sedalia
All work below is permitted and inspected under the authority with jurisdiction over Sedalia.
- Kitchen Remodeling in SedaliaLayouts, cabinets, counters, full gut rebuilds
- Bathroom Remodeling in SedaliaPrimary baths, guest baths, wet-area rebuilds
- Basement Finishing in SedaliaEgress, ceiling height, permits, finished space
- Home Additions in SedaliaBump-outs, second stories, whole-room additions
- Roofing in SedaliaReplacement, storm damage, Class 4 options
- Deck Building in SedaliaComposite and wood decks, rails, structural repair
- Fencing in SedaliaWood, composite and metal fence installation
- Framing in SedaliaStructural framing, walls, load-bearing changes
- Drywall in SedaliaHang, tape, texture, repair and patching
- Tile Work in SedaliaFloors, showers, backsplashes, waterproofing
- Painting in SedaliaInterior and exterior, prep and finish work
- Demolition in SedaliaSelective interior demo and full teardowns
Nearby in Douglas County
We work throughout Douglas County. Nearby communities:
Common Questions
Who issues permits in Sedalia?
The Douglas County Building Division at 100 Third Street, Suite 020, Castle Rock, 303-660-7497. Sedalia is unincorporated and has no town building department.
Who permits the septic system and the well?
Septic is permitted and inspected by the Douglas County Health Department. Wells are permitted by the Colorado Division of Water Resources.
Do wildfire requirements apply to my project?
Unincorporated Douglas County is covered by the county’s wildfire hazard overlay district map, with recommended materials including ember-resistant vent screening and non-combustible construction, assessed over the first 100 feet around the structure.
Talk to Us About Your Project
We work throughout Douglas County and the wider Denver metro. Tell us what you are trying to do, and we will tell you what it takes — permits, code, sequence and a real number — before anyone signs anything. See our Colorado remodeling price guide or read more about the areas we serve in Douglas County.