Buying a Lot and Building a Home in Colorado: What to Know

A house and land package in Colorado is one of two things: a builder-owned lot with a set floor plan in a metro-district community, or a custom lot you buy first and build on with your own construction loan. The first closes in 6 to 10 months for $450,000 to $900,000 on the Front Range; the second takes 12 to 24 months and runs $250 to $450 per square foot before the land.

This guide covers the Colorado version of the question: which path fits, what a metro district costs, how construction loans are paid out, what wells and septic mean on a rural lot, which county issues the permit, and why you bring your own agent to the model home. Outside the United States the phrase means something different; home and land packages in Australia bundle a lot and a build under two contracts and a stamp duty rule. Colorado has no stamp duty. Colorado has metro districts, bentonite clay and a water court.

What a house and land package means in Colorado

Colorado builders do not sell a "package" by that name. They sell a lot and a plan: you pick a homesite in a community the builder controls, pick one of the builder's floor plans, pick a structural option list, then pick finishes at the design center. One purchase agreement covers the lot and the house. You close once, when the home is finished.

The other path is a custom lot. You buy the land in its own closing, hire a builder, and finance the build with a construction loan. Two closings, two contracts, and you carry the land while the house goes up.

Builder community or custom lot: which one fits

Pick the builder community when you want a fixed price, a known close date and a walkable community with parks and trails. Pick the custom lot when you want acreage, a shop, horses, or a plan that no production builder offers. The benefits of buying new construction in Colorado page covers the production side; the custom home versus pre-built comparison covers the other.

What a metro district adds to your Colorado tax bill

Nearly every builder community built on the Front Range since 2000 sits inside a metropolitan district, a Title 32 special district under Colorado law. The district sold bonds to pay for the roads, water lines and parks, and it repays those bonds through a mill levy on every home inside its boundary.

• The number to find: the district's total mill levy. New districts run 40 to 70 mills for debt service and operations on top of the county, city, fire and library levies.
• What it does to the payment: on a $650,000 home, a 50-mill district levy adds $2,000 to $2,300 a year, or about $180 a month, to your escrow.
• Where to check it: the county assessor's tax area code for the parcel and the builder's district disclosure.
• How long it lasts: district bonds run 20 to 40 years, and boards refinance. Plan on the levy for the life of the loan.

The Denver special district and metro district tax guide walks through reading a tax bill, and the post on what a Denver new-build tax district costs you runs the math on a real community.

How a construction loan works in Colorado

A construction-to-permanent loan (one-time close) funds the build in draws, then converts to a 30-year mortgage when the county issues the certificate of occupancy. Front Range lenders that write them ask for 20 to 25 percent of the total project cost as equity, and land you already own counts toward it.

1. Appraisal on plans: the appraiser values the finished home from the plans, specs and lot. The loan is sized on that number.
2. Draws: the builder submits a draw request at each stage (foundation, framing, mechanical rough-in, drywall, finish). An inspector confirms the work, then the lender releases funds. Expect 5 to 7 draws.
3. Interest-only during the build: you pay interest on the money drawn so far, not the whole loan. Budget $1,500 to $4,000 a month during framing and beyond.
4. Conversion: at completion the loan rolls to the permanent rate with no second closing.

Builder communities skip all of this. You put down $5,000 to $25,000 in earnest money plus a design-center deposit, and you close on a standard mortgage at the end. Production builders push their in-house lenders (Lennar Mortgage, DHI Mortgage, HomeAmerican Mortgage) with $10,000 to $30,000 in rate buydowns or closing-cost credits. Compare that offer against an outside lender; you are free to use any provider. Our Colorado mortgage pre-approval guide and the 3-2-1 buydown page explain what those incentives are worth.

What it costs to build on the Front Range in 2026

• Production home, builder lot: $450,000 to $900,000 all in for 1,800 to 3,200 finished square feet in Douglas, Arapahoe, Adams and Weld counties.
• Semi-custom on your lot: $250 to $325 per square foot for the house alone.
• Full custom: $350 to $450 per square foot, more in the foothills where every truck climbs a grade.
• Land: $150,000 to $300,000 for 2 to 5 acres in Elbert County; $300,000 to $600,000 for a 5-acre parcel with a view in Douglas County; $100,000 to $200,000 for 2 to 5 acres in eastern Weld County.
• Site work no one budgets: driveway ($15,000 to $40,000 on a rural lot), power extension ($20 to $40 per foot), soils report ($2,500 to $5,000), engineered foundation for expansive soils ($20,000 to $60,000 extra).

Water and septic on a rural Colorado lot

Water is the first question on any lot outside a district. Colorado allocates every drop, and the Colorado Division of Water Resources (the State Engineer) issues the well permit.

• Household-use-only permit: the standard permit on lots under 35 acres. It allows water inside the house only. No lawn, no garden hose, no stock tank.
• Domestic well permit: available on 35 acres or more, or where a water court decree or an augmentation plan covers the lot. It allows irrigation of up to one acre and livestock watering.
• Drilling cost: $25,000 to $45,000 for a 300 to 700 foot well in Elbert and eastern Douglas County, where the Denver Basin aquifers keep dropping. Get the well log of the neighbor's well before you buy.
• Septic: a conventional system runs $15,000 to $25,000; an engineered system for clay soil or a high water table runs $30,000 to $45,000. The county health department permits it under Colorado's Regulation 43, and it needs a soils percolation test first.

Building permits in Douglas, Elbert and Weld counties

• Douglas County: the Building Division reviews plans for unincorporated Douglas County (Franktown, Sedalia, Larkspur, the Parker and Castle Rock outskirts). Plan review takes 3 to 6 weeks for a single-family home. Lots in the wildfire hazard overlay need a Class A roof and defensible space plan.
• Elbert County: Community and Development Services handles building permits, and the county requires a state well permit and a septic permit before the building permit issues. Plan review takes 2 to 4 weeks.
• Weld County: the Department of Planning Services issues building permits for unincorporated Weld. Check for oil and gas well setbacks on the parcel through the Colorado Energy and Carbon Management Commission map before you design the site.
• Inside a town: Parker, Castle Rock, Elizabeth, Windsor and Firestone each run their own building department, and the production builder pulls those permits, not you.

Permit fees on a $700,000 custom home run $8,000 to $15,000 in county fees plus land-dedication and impact fees that differ by county.

Expansive soils change the foundation, not the decision

The Front Range sits on bentonite clay that swells when wet and shrinks when dry. That is why Colorado law (C.R.S. 6-6.5-101) requires the seller of a new home to hand the buyer a soils report at least 14 days before closing. A swell potential above 3 percent means a post-tensioned slab, caissons or an over-excavation and re-compaction, all of which the builder prices into the foundation line. On a custom lot, order your own geotechnical report before the land closing goes hard.

How long it takes

Winter slows concrete and framing from December through February. A builder contract signed in September closes the following spring.

What is in a builder contract that a resale contract is not

Production builders use their own contract, not the Colorado Real Estate Commission form. Read these clauses:

• Earnest money terms: the deposit and design-center money are non-refundable after a short window, 3 to 10 days in most Front Range builder contracts.
• Price and date: ask for a fixed price with no escalation clause; the completion date is an estimate, so leave room in your rate lock and lease.
• Warranty: 1 year on workmanship, 2 years on mechanical systems, 10 years on structure is the common structure. Colorado's Construction Defect Action Reform Act sets the claims process.
• Appraisal gap: upgrades appraise at 50 to 70 cents on the dollar, and you cover any gap at closing.

Why you bring your own agent to the model home

The sales rep in the model home works for the builder. In Colorado that person is the seller's agent, and every document you sign was written for the seller. A buyer's agent for a new build costs you nothing at most Front Range builders (the builder pays the co-op), and the builder requires you to register that agent on your first visit. Walk in alone and the builder records you as unrepresented.

The agent negotiates the incentive package, reads the metro district disclosure, checks the lot premium against resale data, and orders independent inspections at pre-drywall and at final. Read do you need a buyer's agent for new construction in Colorado and the best agent for new construction buyers post for the full list.

Where to go next

• New construction homes in Colorado by area
• Do you need a buyer's agent for new construction in Colorado?
• Metro district and special district tax guide
• How HOAs, metro districts and taxes affect Denver suburb buyers
• ILC versus land survey: why a custom lot needs a full survey
• Colorado horse property buying guide
• Kenna Real Estate Group agents

Talk to the Kenna Real Estate Group

The Kenna Real Estate Group at Keller Williams DTC represents buyers at every Front Range builder and on custom lots from Elbert County to Weld County: we read the metro district disclosure, price the lot premium against resale, check the well and septic paperwork, and order the pre-drywall inspection. Call or text 303-955-4220. A live person answers. Not a robot, not a phone tree. Or search every home for sale in Colorado, including lots and new builds.