Dashboard
WTCAPITAL Growth Engine
System Architecture
190
Suburbs Tracked
475
Live Listings
7
Data Sources
12
Scoring Factors
8
States & Territories
5
Output Channels
Layer 1 — External Data Sources
API
PT
PropTrack API
REA Group market data — medians, DOM, rents, yields, listings volume, inventory months
REST APIOAuth2

Data Points

  • Median sale prices (24-month history)
  • Days on market by suburb
  • Median rents & rental yields
  • Total/new for-sale listings count
  • Sale volumes & inventory months
  • Price history sparklines

Integration

  • Via PropTrack Relay (Vercel serverless)
  • Token-authenticated proxy layer
  • Covers all 190 tracked suburbs
Feed
HS
Hotspotting PPI
Property Performance Indicators — suburb-level trend classifications from quarterly sales data
QuarterlyCSV

Classifications

  • Rising — upward price trend
  • Consistent — stable market activity
  • Recovery — bouncing from trough
  • Plateau — flattening growth
  • Declining — downward pressure
API
HT
HTAG Dex Scores
Capital Growth, Cashflow & Lower Risk indices — inventory months, ROI, IRSAD
DexGeoDex

Indices

  • Dex Capital Growth score (0-100)
  • Dex Cashflow score (0-100)
  • Dex Lower Risk score (0-100)
  • IRSAD socioeconomic index
  • Rent-to-own ratio analysis
Daily
Domain / REA
Live property listings from Australia's two major portals — standalone houses under $1M
WebDaily

Collection

  • Domain.com.au and realestate.com.au
  • Filtered: standalone houses < $1M
  • 475 current live listings
  • Price, beds, baths, land size, agent info
  • Enriched with OSM walkability data
Live
OpenStreetMap
POI data for walkability, amenity density, transport access, green spaces
OverpassOSM

Enrichment Data

  • Walkability scores (shops, schools, transport)
  • Noise assessment (roads, flight paths)
  • Green space coverage within 1km
  • Price positioning vs suburb median
  • Amenity density counts
Public
ABS / RBA / Infra
Government data — population, SEIFA, building approvals, infrastructure projects
ABSRBA

Data Points

  • Population estimates & growth rates
  • SEIFA decile (socioeconomic index)
  • Building approvals count
  • Infrastructure Australia projects
  • RBA cash rate & lending data
Collect · Normalise · Store
Layer 2 — Data Processing & Storage
suburbs.json
190 suburbs — all metrics, scores, grades, lat/lng, postcodes, multi-source data
221 KBJSON

Schema Per Suburb

  • Name, state, postcode, lat, lng
  • Median price, vacancy, DOM, yields
  • Overall score + 4 category scores
  • Grade (A+ through D)
  • PPI classification + HTAG Dex scores
  • PropTrack 24-month price history
listings.json
475 enriched listings — walkability, noise, green spaces, price positioning
1.4 MBJSON

Per-Listing Data

  • Address, price, beds, baths, parking
  • Land size, property type, listing URL
  • Agent name, phone, email, agency
  • OSM walkability score + breakdown
  • Noise assessment + green space data
  • Price position vs suburb median
history.json
Historical snapshots — score changes, grade movements, trend tracking over time
64 KBJSON
offmarket.json
Off-market intelligence — target streets, motivated seller signals, market gaps
38 KBJSON
Score · Grade · Rank · Enrich
Layer 3 — Analysis & Scoring Engine
12-Factor Scoring Model
Weighted composite — Demand (30%), Supply (25%), Structural (25%), Cycle (20%)
Z-scorePercentile

Factors

  • Demand: DOM, Stock Pressure, Auctions, Search
  • Supply: Vacancy, Yield, Building Approvals
  • Structural: Infrastructure, Population, SEIFA
  • Cycle: Growth Gap, Price-to-Income
  • Cycle multiplier: 0.85x to 1.10x adjustment
Grade Classification
A+ (90-100), A (80-89), B+ (70-79), B (60-69), C (40-59), D (<40)
6 Grades0-100
OSM Enrichment
Per-listing walkability, noise assessment, green space coverage, amenity density
PythonOverpass
LRBA Calculator
SMSF borrowing — state stamp duty tables, ATO safe harbour rates, cash flow projections
8 StatesATO 8.95%

Calculations

  • State-specific stamp duty (all 8 states/territories)
  • Acquisition costs (conveyancing, trust, fees)
  • Loan repayments (P&I or IO at ATO rate)
  • Annual cash flow (income vs expenses)
  • Liquidity buffer requirements
  • SMSF serviceability (80% gross rental)
Render · Visualise · Interact
Layer 4 — User Interface
Dashboard
Interactive map + ranked suburb table with sorting, pagination, filters
LeafletChart.js
Insights
Top suburbs nationally & by state, rising stars, price watchlists
Listings
Property cards — shortlist, reject, detail modal, agent contact, LRBA calculator
Off-Market
Target streets, motivated seller signals, market gap analysis
Trends
Market momentum, grade movements, metric history, listing flow charts
Methodology
Full documentation — 12-factor model, research basis, data sources
Generate · Deliver · Share
Layer 5 — Output & Client Delivery
Investment Report
Branded HTML report — suburb metrics, LRBA analysis, property data, walkability
HTMLBranded

Report Sections

  • Suburb growth profile & grade
  • Property details & listing photo
  • LRBA financial scenario
  • Walkability & amenity data
  • Key metrics comparison
Email Delivery
Daily top-25 property digest with per-property reasoning — 7am AEST
AutomatedDaily

Email Features

  • Top 25 properties ranked by score
  • Per-property WHY reasoning
  • Suburb grade context
  • Direct listing links
  • Configurable recipients
Share Links
Shareable shortlist URLs with property selections encoded
URL HashClipboard
PDF / Print
Browser print-to-PDF for investment reports with optimised print stylesheet
Print CSSPDF
Agent Contact
Pre-filled enquiry emails and phone links for listing agents
mailto:tel:
Infrastructure
Layer 6 — Infrastructure & Deployment
GitHub
TechDaddyFairy/wt-growth-engine — private repo with CI/CD pipeline
GitCI/CD
Vercel / S3
Static hosting with CDN, PropTrack relay serverless functions, custom subdomain
CDNEdge
PropTrack Relay
TechDaddyFairy/proptrack-relay — serverless proxy for PropTrack API authentication
VercelServerless
Perplexity Computer
Automated data collection, enrichment scripts, daily email generation, cron scheduling
CronsPython
Live / Connected
Paused / Scheduled
WT Growth Engine
Infrastructure