Kent and Irene's Building
5-story 15 × 30 m mixed-use industrial building in Zhongshan, Guangdong. Ten design studies exploring floor layouts, commercial strategies, and parking — from individual floors to full-building pro formas.
Design studies
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Kent — Floor 2 HUDHeads-up display with floor plan and drainage overlay.
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Kent2 — 8-unit variantAlternative layout exploring an 8-unit subdivision with hybrid Airbnb + monthly model.
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Kent3 — InteriorsUnit interior layouts and detail sheets for the 4 unit types.
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Kent4 — L1 commercial + L3 officeGround-floor mixed retail (grocery, mixed, restaurant) and 3rd-floor office layout.
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Kent5 — Full building baselineComplete 5-story design: L1 commercial, L2 hybrid residential, L3 office, L4 long-stay, L5 boutique. ¥990k NOI, 11.6% cap.
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Kent6 — L1 full-floor parkingEntire L1 as covered parking: 12 spaces via rear roll-ups, SE + W pedestrian corridors, fire safety. ¥155k fit-out.
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Kent7 — L1 hybrid: 2 shops + parking2 front shops (55 + 39 m²) face south street; 8-space parking via rear north roll-ups; SE + W pedestrian access. ¥283k fit-out, ¥180k NOI.
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Kent8 — L2 front offices + residential highest NOISouth-facing L2 corners (S2 + S4) as massage/spa, beauty, tutoring offices. 2 commercial + 6 residential. ¥435k NOI vs ¥190k all-residential.
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Kent9 — L3 front shops + rear officeSouth half of L3 split into 2 commercial units (86 m² each) — office/retail over restaurant. North half retains 16-desk office. ¥542k NOI vs ¥132k full office.
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Kent11 — Recommended building (full summary) ★Best configuration: kent7 (L1) + kent8 (L2) + kent9 (L3) + kent5 (L4/L5). 沙溪镇, Zhongshan. ¥7.2M fit-out, ¥1.6M NOI, 22.1% cap, 4.5-yr payback. 10 commercial tenants, 14 residential, 8 parking.
Financial summary
Comparing L1, L2, and L3 strategies across kent5 (baseline) and kent6–9. L4+L5 remain unchanged at ¥439k combined NOI in all scenarios.
L1 options
| Option | L1 use | Fit-out | NOI / yr | Cap rate | Parking |
|---|---|---|---|---|---|
| Kent5 baseline | 3 commercial bays (café, convenience, service) | ¥1,000,000 | ¥225,000 | 22.5% | 0 spaces |
| Kent6 | Full-floor parking | ¥155,000 | ¥0 | — | 12 spaces |
| Kent7 recommended | 2 front shops + 8-space rear parking | ¥283,000 | ¥180,000 | 63.6% | 8 spaces |
Kent7 recovers 80% of kent5's shop income at 72% less capital while adding 8 rear parking spaces. Vehicles enter from north roll-ups; shops face south street. SE + W pedestrian corridors on all options. Kent6 maximizes parking (12 spaces) but sacrifices all L1 revenue.
L2 options
| Option | L2 use | Fit-out | NOI / yr | Cap rate | Payback |
|---|---|---|---|---|---|
| Kent2/5 baseline | 8 residential (4 Airbnb + 4 monthly) | ¥1,983,000 | ¥190,200 | 9.6% | 10.4 yr |
| Kent8 recommended | 2 front commercial + 6 residential | ¥1,920,000 | ¥434,700 | 22.6% | 4.4 yr |
Converting just S2 + S4 to commercial (massage, beauty, tutoring) more than doubles L2 NOI. Small-format L2 retail commands ¥8–18/m²/day vs ¥1,600–2,200/mo residential.
L3 options
| Option | L3 use | Fit-out | NOI / yr | Cap rate | Payback |
|---|---|---|---|---|---|
| Kent5 baseline | 32-desk full office | ¥1,400,000 | ¥132,000 | 9.4% | 10.6 yr |
| Kent9 recommended | 2 front commercial + 16-desk office | ¥850,000 | ¥541,800 | 63.7% | 1.6 yr |
Same pattern as L2: converting the south-facing front to commercial quadruples L3 NOI while cutting fit-out 40%. Restaurant option analyzed but office/retail recommended — avoids kitchen exhaust, grease trap, and tenant-failure risk.
Full building — stacking options
| Scenario | L1 | L2 | L3 | Fit-out | NOI | Cap | Payback |
|---|---|---|---|---|---|---|---|
| Kent5 baseline | 3 bays (¥225k) | 8 res (¥190k) | 32-desk (¥132k) | ¥8,533k | ¥990k | 11.6% | 8.6 yr |
| Kent7 + kent2 | 2 shops + 8 pkg (¥180k) | 8 res (¥190k) | 32-desk (¥132k) | ¥7,816k | ¥941k | 12.0% | 8.3 yr |
| Kent7 + kent8 | 2 shops + 8 pkg (¥180k) | 2 com + 6 res (¥435k) | 32-desk (¥132k) | ¥7,753k | ¥1,186k | 15.3% | 6.5 yr |
| Kent7+8+9 best | 2 shops + 8 pkg (¥180k) | 2 com + 6 res (¥435k) | 2 com + 16-desk (¥542k) | ¥7,203k | ¥1,596k | 22.1% | 4.5 yr |
Recommended: Kent7 (L1) + Kent8 (L2) + Kent9 (L3)
The "retail stack" strategy — converting the south-facing front of L1, L2, and L3 to small commercial units while keeping the rear and upper floors as office/residential — produces the strongest building pro forma by a wide margin.
- Total fit-out
- ¥7.20M (¥1.33M less than kent5)
- Annual NOI
- ¥1,595,500 (+61% over kent5)
- Building cap rate
- 22.1% (vs 11.6% kent5)
- Simple payback
- 4.5 years (vs 8.6 kent5)
- 10-yr cumulative NOI
- ¥18.3M (vs ¥11.4M kent5, at 3% growth)
- Covered parking
- 8 spaces (vs 0 in kent5)
- Commercial tenants
- 6 storefronts on south facade (L1–L3) forming a vertical retail corridor