Decision Matrix: 3 Variables That Determine Which Project Families Should Choose
Families with elderly members often visit dozens of projects before deciding — but in reality, just 3 variables can narrow options to 2–3 suitable projects immediately.
Variable 1: Total Budget (Unit Price + Retrofit Cost)
Looking at unit price alone misses the true cost. Include retrofit:
Budget <5M THB + Retrofit <50,000 THB: → Target: Mid-Range MRT Condo (Lat Phrao, Ratchada, Nonthaburi) → Strategy: Track A Retrofit first, evaluate 3 months, upgrade as needed
Budget 5–10M THB + Retrofit 50,000–100,000 THB: → Target: Mid-High Condo on BTS Bearing–Udomsuk or MRT Orange Line → Strategy: Full Track B Retrofit + Universal Design Renovation
Budget >10M THB: → Target: Luxury Wellness Condo (Sukhumvit, Silom) or Senior Living Community → Strategy: Select projects with built-in Smart Infrastructure
Variable 2: Elderly Risk Level
Low risk (age 60–70, good health, mobile): → Need: Panic Button + Smart Lock + basic LINE Notify → Retrofit: Track A sufficient → Budget: 5,000–10,000 THB
Moderate risk (age 70–80, 1–2 chronic conditions): → Need: mmWave + Smart Pill Dispenser + family alert system → Retrofit: Track A + mmWave add-on → Budget: 15,000–25,000 THB
High risk (age >80 or multiple chronic conditions): → Need: Full Track B + multi-room mmWave + wearable + Emergency Response Plan → Budget: 35,000–60,000 THB
Variable 3: Location and Distance to Healthcare
High-risk elderly — hospital within 15 minutes required: → Route A: BTS Green (Phra Khanong–On Nut) near Sukhumvit Hospital, Bangkok Hospital → Route B: MRT Blue (Lat Phrao–Ratchada) near Ladphrao Hospital, Rama 9 Hospital → Route C: BTS Gold (Krung Thon Buri) near Thonburi Hospital
Moderate-risk elderly — up to 30 minutes acceptable: → MRT Purple (Nonthaburi) near Phranangklao Hospital → BTS Green (Samut Prakan) near Samut Prakan Hospital
3×3 Matrix: Combined Recommendations
Low risk + <5M: MRT Mid-Range + Track A Low risk + 5–10M: BTS Mid-High + Track A Low risk + >10M: Luxury + Minimal Retrofit Moderate + <5M: MRT Mid-Range + Partial Track B Moderate + 5–10M: BTS Mid-High + Full Track B Moderate + >10M: Luxury + Track B High risk + <5M: MRT Mid-Range near hospital + Full Track B High risk + 5–10M: Luxury near hospital + Full Track B High risk + >10M: Senior Living Community
4-Step Decision Process
Step 1: Assess elderly risk level using above criteria Step 2: Set total budget (unit + retrofit + 3-year common fees) Step 3: Filter locations by acceptable hospital distance Step 4: From 2–3 remaining projects, evaluate ceiling height and juristic IoT policy