SAN FRANCISCO BAY AREA • 9-COUNTY ARCHITECTURAL NETWORK Official Regional MLS Feed • Oct 9, 2026
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SAN JOAQUIN COUNTY • LATHROP • MASTERPLAN: RIVER ISLANDS

Sunset Isles at River Islands

“Masterplanned Waterfront Delta Living with Private Docks & Community Lake Access.”

Sunset Isles at River Islands by Lennar
✨ Delta Waterfront Under Construction (Fall 2026)
Featured Collection Lennar
Aspirational Offering • Move-in Inventory
From the high $600s
2,240 - 2,890 sq ft
3 - 5 Beds • 3 - 3.5 Baths
Architectural Narrative

Master-Planned Living in Lathrop

Ref: LEN-SJ-SWT-18

Sunset Isles is an extraordinary waterfront neighborhood located in the 5,000-acre River Islands masterplan in Lathrop. Select homesites back directly onto navigable lakes with private boat docks. Community features 9 community lakes, championship athletic fields, River Islands STEAM Academy, and upcoming Valley Link transit.

Constructed by Lennar, this residential enclave incorporates modern California energy performance standards, high-performance insulation envelopes, and seamless indoor-outdoor loggias designed for Northern California living.

Underwriting Bulletin • Section F: Capital Intelligence

Lennar Subsidized Financing vs. Secondary Resale Market

Base Price Guide: $
Standard Resale Loan
$/mo
% 30-Yr Fixed Benchmark
Builder Subsidized Rate
$/mo
% Subsidized 30-Yr Rate
Monthly Cash Flow Advantage
$/mo
$/year in Household Relief
Carrying Cost Breakdown • Monthly Ledger (PITI + CFD Mello-Roos + HOA) Prop 13 Audited
P&I (%)
$
Prop 13 Tax
$
CFD Mello-Roos
$
Master HOA
$
Hazard Ins.
$
Total Estimated Net Monthly Carrying Cost: ~$ / mo
* Fiduciary Underwriting Note: Builder rate buydowns and closing concessions are funded via corporate builder marketing allowances. In California, unrepresented buyers forfeit independent audit of CFD special taxes and rate adjustment riders.
Curated Architectural Portfolio

Floor Plans • 3 Configurations

Portfolio Range: 2,240 - 2,890 sq ft

The Delta Breeze (Plan 2240)

Contemporary Craftsman Elevation
From $689,990
Living Area
2,240 sq ft
Bed / Bath
3bd / 3ba
Stories
2 Stories
Garage Bays
2-Car
“Direct water views from living room, private dock access, and covered patio for lakefront dining”
Get VIP Pass & Tour The Delta Breeze (Plan 2240) →

The Spinnaker (Plan 2560)

Contemporary Craftsman Elevation
From $729,990
Living Area
2,560 sq ft
Bed / Bath
4bd / 3ba
Stories
2 Stories
Garage Bays
2-Car
“Main-level bedroom and bathroom, large upstairs loft, and master bedroom with panoramic lake balcony”
Get VIP Pass & Tour The Spinnaker (Plan 2560) →

The Harbor Master - Next Gen® (Plan 2890)

Contemporary Craftsman Elevation
From $769,990
Living Area
2,890 sq ft
Bed / Bath
5bd / 3.5ba
Stories
2 Stories
Garage Bays
3-Car
“Independent multi-gen suite with separate entrance, kitchenette, laundry, and private waterfront patio”
Get VIP Pass & Tour The Harbor Master - Next Gen® (Plan 2890) →
REGIONAL COMMUTE & RELOCATION CARTOGRAPHY

Northern California Employment Corridor Matrix

Live highway drive times, commuter rail links, and transit benchmarks calculated directly from Sunset Isles at River Islands in Lathrop, San Joaquin County.

REGIONAL EMPLOYMENT CORRIDORS ORIGIN: LATHROP
PACIFIC OCEAN San Pablo Bay San Pablo Strait Golden Gate San Francisco Bay Carquinez Strait Suisun Bay / Delta I-80 Corridor I-680 Corridor I-580 / Altamont Pass US-101 / Caltrain I-80 I-680 I-580 San Francisco Oakland Walnut Creek / Concord Dublin (BART) Fremont Silicon Valley / San Jose Tracy / ACE Train Sacramento ★ Sunset Isles at R…
I-80 Corridor I-680 Corridor I-580 / US-101
Cartography: BayAreaHomes GIS • San Joaquin/Bay Area
Select Destination Benchmark: 4 Major Employment Corridors
Route: I-80 W to I-680 S (Benicia Bridge)
Solano Express Route 40 to Walnut Creek BART
Strategic Reverse-Commute Advantage: Residents traveling south toward Contra Costa / Walnut Creek or east toward Sacramento experience substantially lower peak congestion compared to traditional westbound Bay Area bottlenecks, saving an estimated 8–12 hours weekly.
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