Is $245–$280 per square foot really all-in?

Yes — that range covers a turnkey custom home with the included features list above. The big things NOT in that number are the land itself, well/septic if your lot needs them, off-site utility runs, pools, and detached structures. You'll see every line item in your written estimate.

Do you build on my lot?

Yes. We build on lots you already own throughout Paradise, and on the Ridge. If you don't have a lot yet, we can walk parcels with you before you buy so you know what site prep will cost.

Can I bring my own plans, or do I have to use yours?

Either works. We have a library of floor plans you can build as-is, semi-customize, or fully customize. You can also bring plans from another designer or architect and we'll price and build them.

How long does a custom home take in Paradise?

Plan on roughly 9 to 14 months from signed contract to keys, depending on permits and weather. Our most recent project went slab-to-final in 6½ months once construction started.

What about fire insurance and rebuilds?

Qualifying buyers get up to 1 year of paid fire insurance included in the base price. We work with rebuild owners regularly, coordinate with insurance carriers on scope, and build to current WUI code requirements.

Do you help with construction financing?

We don't lend, but we work with local construction lenders and can introduce you to a few who know Ridge rebuilds. We'll provide whatever documentation your lender needs to underwrite the loan.

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One Source
Builders IncCSLB #365276

One Source Builders Inc CSLB #365276

Cost Guide · Paradise, CA

How much does it cost to build a custom home in Paradise, CA?

Our semi- and fully-custom homes on the Ridge run $245 – $280 per square foot, concept to keys. Below is a transparent breakdown of what that includes, what moves the price, and what to expect for your specific lot.

Last updated June 2026 · One Source Builders Inc · CSLB #365276

Ballpark totals

Sample turnkey pricing by size

Right-sized single story

1,500 sq ft

$368k – $420k

What's in the base price

Every home includes the features below. Other builders charge extra for many of these.

1 Year of Paid Fire Insurance
High Quality Soft-Close Cabinet Doors and Drawers
Granite or Quartz Countertops
Beautiful Cabinets and Kitchen Island
Excellent Appliance Packages
Walk in Shower
Free Standing Tub
Extra Flush Mounted LED Lighting Throughout
9 to 10 Foot Coffered Ceilings
Rounded Drywall Corners with Beautifully Textured Finish
5¼" Baseboards, 3¼" Door Casings
Wood Window Sills
3 and 4 Color Paint Schemes
State-of-the-Art High Efficiency HVAC System
Whole House Fan
Solar Included / Owned
Ceiling Fans Throughout
Luxury Laminate to Vinyl Plank Flooring Throughout
Energy Star Windows and Appliances
Covered Back Patio
Decorative Timbered Front Porch
Excellent Warranties on Materials and Labor

What moves the price

Six things that push your number up or down

Lot conditions

Slope, soil, access, tree work, retaining walls, and how much site prep your parcel needs before a foundation can be poured.

Square footage & layout

Larger homes cost more in absolute dollars but often less per square foot. Two-story plans save on foundation and roof but add framing complexity.

Finish level

Our base spec is already premium. Upgraded tile, custom cabinetry, specialty appliances, and high-end fixtures move the per-sq-ft number up.

Site work & utilities

Septic vs. sewer, well vs. district water, propane vs. natural gas, and the distance from utilities at the road all matter.

Permits & fees

Butte County building permits, school fees, and any required engineering reports are passed through at cost.

Fire-rebuild factors

Defensible space, hardened materials, and updated WUI code requirements specific to rebuilds on the Ridge.

Plan for these too

What's not in the per-sq-ft number

These items vary too much from lot to lot to bundle into a per-square-foot number. We price them as separate line items in your written estimate.

Land / lot purchase
Well or septic systems if not already on the lot
Off-site utility extensions (long power, water, or gas runs)
Pools, spas, and detached shops or ADUs
Custom landscaping beyond basic site cleanup

Paradise fire rebuilds

We know rebuilds on the Ridge.

Insurance coordination

We work with your carrier directly to align scope, square footage, and finish level with your policy. We've helped rebuild owners maximize what their policy covers.

Lot prep assumptions

If debris removal is already complete and the lot is cleared, you're ready. If not, we'll price grading, stump removal, and any retaining work as separate line items.

Updated WUI code

Current Wildland-Urban Interface code requires hardened materials — Class A roof, ember-resistant vents, tempered glass, and defensible space. Already in our base spec.

1 year of fire insurance

Qualifying rebuild buyers get up to one year of paid fire insurance included — one less thing to figure out while you're getting back on your feet.

Timeline

Concept to keys in 9 – 14 months

01
Concept & design
2 – 6 weeks
Walk the lot, pick or customize a plan, lock in your scope and budget.
02
Permits & engineering
6 – 12 weeks
Plan review, structural, Title 24, and Butte County permitting.
03
Site prep & foundation
3 – 6 weeks
Clearing, grading, utility trenches, foundation pour and cure.
04
Framing through finish
16 – 24 weeks
Framing, roof, mechanicals, drywall, cabinets, paint, flooring, fixtures.
05
Final & keys
1 – 2 weeks
Final inspections, walkthrough, punch list, hand-off.

Cost FAQ

Common questions about cost

Get a number for your lot

Ready for a written estimate?
Let's price your specific build.

Call (530) 630-9498, stop by 693 Fir Street in Paradise, or send us your lot details and we'll put a real number to your project.

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