The DoubleWide SingleWide Courtyard Combo
- robert carpenter
- Aug 20
- 2 min read
1. Lot Geometry and Density Math
We’re talking about a tiny lot:
Lot size: 65’ × 78’ = 5,070 sq. ft. ≈ 0.116 acres
Occupancy capacity: 10 people per lot (two units, doublewide + singlewide)
Now scale this up:
People per acre = 10 ÷ 0.116 ≈ 85 people/acre
People per square mile = 85 × 640 ≈ 54,400 (≈ 55,000)
That’s density on par with Manhattan’s most crowded census tracts, but achieved with private courtyards, spas, gardens, and parking — not stacked shoebox apartments.
2. How It Compares to “Missing Middle” Urban Infill
Missing Middle housing (duplexes, triplexes, courtyard apartments, etc.) is sold as the compromise between suburban sprawl and luxury towers. But here’s the problem:
Typical missing middle density = 15–40 units/acre → roughly 30–90 people/acre (assuming 2.2 people/unit).
Our manufactured housing courtyard model = 85 people/acre right out of the gate, and that’s with generous courtyards, full parking, and a spa lifestyle.
So instead of cramming people into 4-story walk-ups with no parking and a postage-stamp shared courtyard, you get:
🌱 Lush private gardens
🚗 4-car parking per lot
🛁 Spa, outdoor kitchen, outdoor dining
🏡 Single-level indoor comfort (doublewide + singlewide combo)
In other words: more density, more privacy, more luxury.
3. The Killer Advantage: Price
Mobile home costs:
Doublewide: ~$120K–$150K
Singlewide: ~$60K–$80K
Site prep + courtyards + amenities: ~$50K
All-in total: ≈ $250K–$300K per lot
Bespoke missing-middle infill (stick-built):
Duplex or triplex infill unit: ~$300–$450 per sq. ft. (urban build, permits, soft costs)
2,500 sq. ft. across 2–3 units = ~$900K+ for the same density, and that’s before land cost.
3–4× the cost of your manufactured solution
So, not only do you get triple the density of missing middle, you do it at one-third the cost — with private courtyards missing middle can only dream of.

4. The Takeaway
What you’ve created is luxury density at mobile home prices:
85 people/acre living in spacious, private garden homes.
Density that beats missing middle infill, without towers, zoning battles, or bankrupting developers.
A suburban villa lifestyle — but at manufactured home economics.
This model reframes density not as a sacrifice but as a desirable, aspirational lifestyle.
Do you want me to draw a side-by-side visual comparison — your 65’×78’ two-home courtyard lot vs. a typical missing middle triplex lot — showing how you fit more people, more green, and more parking on the same footprint?
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