How to Choose an ADU Contractor in Colorado (Questions to Ask)
How to hire an ADU contractor in Colorado, the questions to ask, the red flags to avoid, how licensing works here, and modular versus site-built compared.
Palmer Lake’s real rules, taxes and rents — read from the codified ordinance, every figure sourced and dated. Here: a HUD benchmark rent of $1,464/mo for a 1-bed. Run your own numbers below, free.
Read from the Palmer Lake Code Of Ordinances itself — the operative legal text, not a website summary. Palmer Lake is an HB24-1152 subject jurisdiction: since June 30, 2025, state law requires it to allow an ADU wherever it allows a single-family home, with administrative approval — the local standards below still apply.
| Minimum ADU size | 500 sq ftverified October 2026Palmer Lake Code Of Ordinances §17.05.225the ordinance text(2) All ADUs shall be subordinate in size to the principal residence but shall not be less than 500 square feet). |
| Owner occupancy | Noverified September 2026Palmer Lake Code Of Ordinances §17.05.225the ordinance textOwner occupancy is not required. |
| Short-term rental | Noverified September 2026Palmer Lake Code Of Ordinances §17.05.225the ordinance textShort-term rentals are not allowed. |
| Extra parking | None beyond the main houseverified September 2026Palmer Lake Code Of Ordinances §17.05.225the ordinance textADUs do not require additional parking spaces. |
| Fire sprinklers | No (for detached ADUs under 800 sq ft; not addressed for larger or attached ADUs in this text)verified September 2026Palmer Lake Code Of Ordinances §17.05.225the ordinance textFire sprinklers are not required for detached ADUs less than 800 square feet. |
Source: Palmer Lake Code Of Ordinances, §17.05.225 · ordinance text retrieved 2026-08-25, re-verified October 2026 · open “the ordinance text” under any figure to read the exact sentence it comes from.
No owner-occupancy requirement — unusual for Colorado (11 of 21 codes we’ve read require it), so a fully tenant-occupied property works here.
Short-term rental of the ADU is not permitted, so the model here is long-term tenancy or family use. No extra parking is required for the ADU.
Property tax runs lighter than most of the state here: 66.96 mills total in the example tax area (El Paso County, Town of Palmer Lake levies), about 26% below the median of the Colorado tax areas we track (levies vary by parcel).
What an ADU adds to the tax bill in Palmer Lake, and the federal benchmark for what it rents for.
Levies: El Paso County Treasurer - Mill Levies (2025 Mill Levies.xlsx, 'TAX YEAR 2025 / BILLED 2026' column) — example: El Paso County, Town of Palmer Lake levies; levies differ between tax areas inside Palmer Lake; check your parcel with the county assessor. Rates: Colorado DOLA, TY2026 — the 10% reduction on the first $700,000 of value applies to the local-government portion, once per property. Rents: HUD Fair Market Rents, huduser.gov.
Two ways to build the same unit in Palmer Lake. Both figures are all-in — design, permits, foundation, utility connections and installation.
Published Front Range ranges for a comparable one-off build, 2025–26
≈ $2,100–$2,600 / month fully financed
In Palmer Lake, the 490 is below Palmer Lake's 500 sq ft minimum ADU size
≈ $2,800–$3,500 / month fully financed
In Palmer Lake, the 735 meets the 500 sq ft minimum; Palmer Lake's maximum size is not confirmed on this page
Olerra ranges: published all-in project pricing, September 2026 — site preparation, foundation, utility connections and permitting included.
Free and specific to you. Want to go further?
Yes. The Palmer Lake Code Of Ordinances permits accessory dwelling units (§17.05.225), subject to the size, height, setback and use rules quoted above from the ordinance text. Palmer Lake is also an HB24-1152 subject jurisdiction, so since June 30, 2025 state law requires it to allow an ADU wherever it allows a single-family home, with administrative approval; the local standards above still apply. Zoning district, lot size and setbacks still decide what fits on a specific lot — the free property check confirms yours.
Yes. An ADU is a new dwelling unit, so Palmer Lake requires a building permit (plus any zoning or site-plan review the code calls for) before construction starts. Olerra's all-in price includes permitting, and factory-built units are inspected to the same building code as a site-built home.
No — the ordinance does not permit short-term rental of an ADU here, so plan on long-term tenancy or family use.
No — there is no owner-occupancy requirement, so the whole property can be tenant-occupied.
A one-off site build with a general contractor typically runs about $500,000–$650,000 for a ~490 sq ft unit. Olerra's factory-built Flex Flats run $300,000–$365,000 (490) and $420,000–$465,000 (735) all-in — site preparation, foundation, utility connections and permitting included.
Roughly $464 per year for every $100,000 of value the ADU adds, in the example tax area shown above: Colorado's TY2026 school (7.05%) and local-government (6.80%) assessment rates on the latest certified (TY2025) levy, a mixed-year estimate. Levies differ between tax areas, so check your parcel with the county assessor.
Same method, each city’s own ordinance. The Colorado hub lists every city, and the statewide ADU calculator covers any Colorado address.
Guides and real Colorado numbers from our team — a fresh pick every couple of weeks, or search for exactly what you need.
How to hire an ADU contractor in Colorado, the questions to ask, the red flags to avoid, how licensing works here, and modular versus site-built compared.
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Planning departments and journalists are welcome to reference this data.
Olerra ADU Cost Calculator — Palmer Lake, CO. Page updated October 9, 2026; rules verified October 2026. https://www.olerra.com/adu-calculator/palmer-lake/ <a href="https://www.olerra.com/adu-calculator/palmer-lake/">Palmer Lake ADU rules & costs</a> Page updated October 9, 2026. The oldest dated figure on the page is from August 25, 2026.
Planning estimates, not quotes or legal advice. Rules, fees, levies and rents change — confirm with the city and your lender before committing. Rules data: codified ordinance as of August 25, 2026, re-verified October 2026. Olerra pricing: published all-in project ranges, September 2026. Corrections: sales@olerra.com.
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