Buying a House That Needs Work in Colorado

Buy a house that needs work in Colorado when the purchase price plus a written repair budget, plus 15% for surprises, lands at least 15% under what the finished homes on the same street sold for in the last 6 months. If the math does not clear 15%, you are paying retail for a project. On the Front Range the surprises have names: expansive soils, clay sewer lines, radon, hail-worn roofs, and asbestos in anything built before 1980. This page covers the math, the loans that pay for repairs, Denver permit costs, and the five checks that decide whether the Kenna Real Estate Group writes the offer.

The Colorado fixer math

Start with the after-repair value: what the renovated homes within a half mile sold for in the last 6 months on REcolorado. Subtract the repair budget from three contractor bids, then 15% of that budget for what the walls hide, then your target margin. What is left is the most you pay.

An owner-occupant who plans to stay 7 or more years cuts the margin line to 5% and still comes out ahead, because the equity is built by living there. An investor keeps the full 15%; the investor version of this math is on our Denver fix and flip guide.

Loans that pay for the repairs

Three loans fund the purchase and the renovation in one closing, with the repair money held in escrow and paid to the contractor as work is inspected:

• FHA 203(k) Limited: up to $75,000 in non-structural repairs (kitchens, baths, roof, furnace, paint, floors), 3.5% down, no HUD consultant required. The most common fixer loan in the Denver metro under the FHA loan limit.
• FHA 203(k) Standard: no repair cap other than the FHA loan limit, structural work allowed, minimum $5,000 in repairs, a HUD-approved 203(k) consultant writes the work plan. Required for foundation work and additions.
• Fannie Mae HomeStyle Renovation and Freddie Mac CHOICERenovation: conventional loans, repairs up to 75% of the as-completed value, 5% down for owner-occupants, and allowed on second homes and investment properties, which FHA is not.

All three require a licensed contractor's bid before closing, a 6-to-12-month completion window, and a lender that does renovation loans; not every Colorado lender does. Rates run a quarter to a half point above a standard loan. Line up the loan before you write the offer; the Colorado contract's loan deadline does not stretch for a slow renovation underwriter. Government-backed options, including VA renovation loans, are on the government-backed home buying guide, and the rest of the menu is on the Colorado home financing guide.

Denver permits, licensed trades, and what they cost

Denver Community Planning and Development requires a permit for structural changes, additions, electrical, plumbing, HVAC replacement, water heaters, roofing, and basement finishes. Cosmetic work (paint, floors, cabinets in the same layout, countertops) needs none. Suburbs run on the same lines with their own fee schedules.

• Permit fees: based on the value of the work; $300 to $800 for a bathroom, $800 to $2,500 for a kitchen with electrical and plumbing, $1,500 to $4,000 for a basement finish in Denver.
• Timelines: over-the-counter for water heaters and furnaces; 2 to 6 weeks for plan review on structural work and basement finishes.
• Licensing: Colorado licenses electricians and plumbers at the state level through DORA; general contractors are licensed city by city. Denver requires a licensed contractor to pull most permits, with a homeowner permit available for work on the house you live in.
• Unpermitted work you inherit: a basement bedroom without an egress window, a deck without footings, or a 2005 kitchen with no permit history shows up on the buyer's inspection when you sell. Budget to permit it now or price it as a defect.

Denver's zoning, ADU, and historic-district rules, which decide whether an addition or a basement apartment is allowed at all, are in our Denver ADU, zoning and historic district guide, with real permit costs and timelines in Denver ADU guide: costs, permit timeline and zoning rules.

Expansive soils and the foundation check

Bentonite clay under Aurora, Parker, Castle Rock, Highlands Ranch, the Denver Tech Center and pockets of every metro city swells when wet and shrinks when dry, and it moves foundations. On a fixer, a foundation problem is the difference between a $115,000 renovation and a $150,000 one. Before the inspection objection deadline:

• Look for diagonal cracks at window corners, doors that stick or swing, a floor that slopes more than an inch across a room, and horizontal cracks in a basement wall.
• Hire a structural engineer, $400 to $800 for a site visit and letter. Not a foundation repair company; they bid the fix.
• Price the fix if the letter calls for one: piers or underpinning run $15,000 to $40,000 on a Denver metro home, wall bracing $5,000 to $15,000, and drainage and grading corrections $2,000 to $8,000.

Which cracks are cosmetic and which are structural is explained in Does a foundation crack mean a Denver-area home has a structural problem?

Sewer scope, radon, asbestos, roof: the four Colorado add-ons

• Sewer scope, $150 to $300. Every Denver home built before 1975 gets one. Clay tile and Orangeburg pipes crack, root in, and belly; replacement runs $8,000 to $20,000 and more where the line crosses a street. On a fixer this is the single most common budget-killer.
• Radon test, $150 to $250. Colorado sits in the EPA's highest radon zone, and about half of the homes tested in the state come back above the 4 pCi/L action level. Mitigation is a $1,200 to $2,500 fan-and-pipe system, so the number matters less than making sure it is in the budget. Details in Radon and the Denver home purchase.
• Asbestos, $250 to $500 to sample. Popcorn ceilings, 9-by-9 floor tile, duct wrap and drywall compound in pre-1980 homes. The Colorado Department of Public Health and Environment regulates removal above small trigger amounts, and licensed abatement adds $2,000 to $10,000 to a renovation. Test before demolition, not after.
• Roof. Colorado's hail season runs from late spring through September, and a roof past 15 years on the Front Range is a replacement, $12,000 to $25,000 for a 2,000 sq ft home with Class 4 impact-rated shingles. Ask for the insurance claim history; two hail claims in 5 years changes the premium the day you close.

The full inspection list, and how to pick the inspector, is in Find a good home inspector before buying that Denver home.

Renovation costs in the Denver metro

Licensed, permitted work in 2026, mid-grade finishes:

• Kitchen, same layout: $35,000 to $70,000. Moving walls or plumbing: $70,000 to $120,000.
• Full bathroom: $18,000 to $35,000. Primary bath with a walk-in shower: $35,000 to $60,000.
• Basement finish: $60 to $110 per sq ft, with an egress window ($4,000 to $8,000) required for any bedroom.
• Electrical panel replacement (Federal Pacific and Zinsco panels, aluminum branch wiring from 1965 to 1973): $2,500 to $5,000.
• Furnace and AC: $10,000 to $17,000 for both.
• Windows: $800 to $1,500 each installed.
• Whole-house cosmetic (paint, LVP floors, lighting, hardware) on 1,800 sq ft: $20,000 to $35,000.

As-is sales, HUD homes and foreclosures

Most fixers in Colorado sell "as-is," and the Colorado Real Estate Commission contract handles it the same way as any other sale: the buyer still gets an inspection period and an Inspection Objection Deadline, and can terminate for any inspection reason and keep the earnest money. "As-is" means the seller will not make repairs; it does not remove your right to inspect and walk. Estate sales, short sales and bank-owned homes are the biggest source of fixers in the metro, and each one has its own timeline and paperwork, explained in the Colorado distressed homes buyer guide.

HUD homes (FHA foreclosures sold by HUD) are a fixer-buyer's best inventory: owner-occupants get a 30-day first look before investors, and an FHA 203(k) is allowed on a HUD home rated "insurable with escrow" or "uninsured." Our Colorado HUD homes guide lists the current homes and the bidding steps, and bank-owned inventory is on the Colorado foreclosure and REO homes guide.

Deal-breakers: when to walk

1. A structural engineer's letter calling for piers plus a sewer replacement plus a roof on a home priced within 10% of finished comps. The math never recovers.
2. Water in the basement with no clear source. Grading is a $3,000 fix; a high water table in a Denver neighborhood near a creek is not fixable.
3. Additions or basement finishes with no permit history and no path to permitting them under current zoning.
4. A lender that has not approved the renovation loan by the loan deadline. Terminate under the loan condition rather than lose the earnest money.
5. A metro district or HOA that prohibits the work. Exterior changes, ADUs and short-term rentals are each vetoed by a covenant somewhere in the metro. The verification list is on the Denver home buyer verification checklist.

What the Kenna Real Estate Group checks before writing the offer

Before an offer goes out on a fixer, the group pulls the renovated comps and runs the math above, pulls the permit history from the city, reads the county assessor's record for the year built and the last sale, checks the FEMA flood map and the wildfire zone, confirms the zoning allows the plan, and books the sewer scope and the structural engineer for inspection week. Then the offer is written with an inspection period long enough to get the bids back, and the inspection objection asks for the number the bids support. The Colorado buyer's version of that list is in Buyer's due diligence checklist for Denver real estate.

Where to go next

• Denver fix and flip guide: what to check before you buy
• Colorado distressed homes buyer guide
• Colorado HUD homes guide
• Government-backed home buying guide (FHA, VA, 203(k))
• Top 10 inspection red flags that kill Denver home sales
• Kenna Real Estate Group agents

Talk to the Kenna Real Estate Group

The Kenna Real Estate Group at Keller Williams DTC runs the fixer math on every home you want to write on, lines up the renovation lender, and books the sewer scope, radon test and structural engineer for inspection week. Call or text 303-955-4220. A live person answers. Not a robot, not a phone tree. Start with the inventory: search every home for sale in Colorado.