Mom belongs next door. Not in a facility.
The short answer
A KĒĒP unit built for an aging parent starts at $190,000 all-in for a studio and typically takes 7–10 months from Property Check to move-in. At an estimated loan payment of $1,461/month, it costs less per month than the average SoCal assisted living facility at $6,400/month. Over five years, facility fees can total around $384,000 with nothing owned at the end, while an ADU stays with the family. For a parent who does not need full-time medical care, that trade is worth weighing.
$6,400/mo
Average Southern California assisted living (Genworth 2026)
When a parent can no longer live entirely on their own, most families are handed one option: a facility. In Southern California, assisted living averages about $6,400 a month — roughly $77,000 a year — and that number climbs every year the care level rises.
It is expensive, and it is far away. The people who love your parent most see them on a schedule instead of over morning coffee. A facility can be the right call when a parent needs daily medical care — but when the real need is closeness, those monthly fees cover care without building anything the family keeps.
There is another option most families never hear about: a private, purpose-built home in your own backyard. Not a spare room. A designed unit with its own entrance, its own kitchen, and a single-story, wheelchair-ready layout — thirty steps from your door.
Your parent keeps their independence and their dignity. Your family keeps them close. And instead of disappearing into facility fees, the money builds an asset on land you already own.
Designed for aging in place, from the studs out
- ✦Zero-step entry — no thresholds to trip on
- ✦Wider doorways sized for wheelchairs and walkers
- ✦Grab-bar-ready wall blocking in the bathroom
- ✦Single-story layout, no stairs anywhere
- ✦Lever handles, rocker switches, and slip-resistant flooring
Five years of care, two very different outcomes
| Assisted living facility | KĒĒP ADU on your property | |
|---|---|---|
| Monthly cost | $6,400/mo average | ~$1,461/mo est. loan payment |
| Five-year total | $384,000 spent | Loan paid down on an asset you own |
| Distance from family | A scheduled visit away | Thirty steps from your door |
| What you own at the end | Nothing | A permanent home on your land |
Illustrative scenario — not a client testimonial
“We were quoted $6,800 a month for a facility twenty minutes away. Instead we built a one-bedroom unit in the backyard. Mom has her own front door, and we have dinner together most nights.”Illustrative scenario — a homeowner in the San Gabriel Valley
Run it for your situation.
You're already paying every month. The question is what it's building.
What are you paying now?
Your $2,400/month could become a ~$1,461/month loan payment — less than you pay now — while building an asset you own.
| Keep paying rent | Build a KĒĒP ADU | |
|---|---|---|
| Monthly payment | $2,400 | ~$1,461 |
| Monthly difference | — | $939 less per month |
| After 10 years | $288,000 spent, nothing owned | Loan paid down + ~$22,800 equity gained |
| What you own at the end | Nothing | An appreciating asset on your own land |
Equity gained is an estimated increase in your property's value (roughly 12% of build cost) — typically less than the full build cost. Loan payment assumes financing the full build cost at an estimated 8.5% rate over 30 years — verify with a lender.
Want these numbers run for your actual property and situation? A free 48-Hour Property Check — no cost, no obligation.
Check my propertyThis is an illustration of how your current monthly payment compares to an ADU loan payment — not financial advice or a guarantee of returns. Loan payment assumes financing the full build cost at an estimated rate; your actual rate, terms, and equity depend on your lender, your property, and market conditions. Consult a lender and tax professional. KĒĒP's fixed price is confirmed in writing after a free 48-Hour Property Check and site assessment.
Common questions
In most cases, yes. A small KĒĒP studio carries an estimated loan payment around $1,461/month at current rates. SoCal assisted living averages $6,400/month. The ADU costs less per month, and the family owns the asset at the end. Over five years of facility payments, a family spends $384,000 with nothing to show for it.
Building in Pasadena, Arcadia, San Marino, or Alhambra?
Free guides for exactly this decision.
Niche, practical, and made for families like yours — not the generic stuff you'll find everywhere else.
Free guide · PDF
The Family Conversation Kit
Scripts and timing for raising the idea of living closer — with a parent, an adult child, or a sibling — without it landing as pressure.
Download ↓Free guide · PDF
The Aging-in-Place Design Checklist
The 14 details that decide whether an ADU actually works for a parent as they age — the ones most builders miss.
Download ↓Free guide · PDF
The Sibling Money Agreement
How families split the cost, ownership, and inheritance of an ADU fairly — before it ever becomes a fight.
Download ↓See what's possible on your property.
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