Funda Tracker 🏠

Home Assistant add-on that tracks your house value from Funda Mijn Huis and exposes it as a sensor with 12 months of history.

Features

• Logs into Funda via OIDC and calls the Waardecheck API directly
• Uses curl_cffi for Chrome TLS fingerprint impersonation (bypasses anti-bot)
• Current value + confidence level + upper/lower bounds
• 12-month historical data imported into HA long-term statistics
• Monthly scheduling (configurable day/hour)
• Template sensors for monthly/yearly change, all-time high/low, price per m², and more
• Finance helpers: purchase price, mortgage balance → equity, profit, ROI
• Automations: monthly notification, threshold alerts, significant change alert, yearly summary

Installation

1. Click the badge above (or in HA, go to Settings → Add-ons → Add-on Store → ⋮ → Repositories and add https://github.com/Rediwed/ha-addon-funda-tracker)
2. Find Funda Tracker and click Install
3. Go to Configuration and enter your Funda email + password
4. Start the add-on — all core sensors are created automatically
5. (Optional) For finance tracking + automations: copy ha/packages/funda.yaml to /config/packages/funda.yaml and reload YAML

Configuration

Option	Description	Default
funda_email	Your Funda account email
funda_password	Your Funda account password
schedule_day	Day of month to scrape (1–28)	10
schedule_hour	Hour to scrape (0–23)	10

Entities

Sensors (pushed directly by add-on — no package needed)

Entity	Description
sensor.funda_house_value	Current estimated value with all data as attributes
sensor.funda_ondergrens	Lower bound of estimate range
sensor.funda_bovengrens	Upper bound of estimate range
sensor.funda_maandwijziging	Monthly change in €
sensor.funda_maandwijziging_pct	Monthly change in %
sensor.funda_jaarwijziging	Year-over-year change in €
sensor.funda_jaarwijziging_pct	Year-over-year change in %
sensor.funda_all_time_high	Highest recorded value
sensor.funda_all_time_low	Lowest recorded value
sensor.funda_betrouwbaarheid	Confidence level (High/Medium/Low)
sensor.funda_prijs_per_m2	Value per square meter
sensor.funda_delta_status	Monthly delta percentage + direction

Finance sensors (requires optional HA package)

Entity	Description
sensor.funda_overwaarde	Equity (value − mortgage)
sensor.funda_marktwinst	Market gain (value − purchase price)
sensor.funda_markt_roi	Market ROI since purchase (%)
sensor.funda_totale_winst	Total profit (value − total investment)
sensor.funda_totale_roi	Total ROI including renovations (%)

Input helpers

Helper	Description
input_number.funda_purchase_price	The price you paid for the house (koopsom) → enables market gain/ROI
input_number.funda_total_investment	Everything you put in: purchase + renovation + loans + cash → enables total profit/ROI
input_number.funda_mortgage_balance	Outstanding mortgage balance → enables equity sensor
input_number.funda_value_alert_high	Get notified when value rises above this
input_number.funda_value_alert_low	Get notified when value drops below this

Finance example: You bought a house for €350k, then spent €100k renovation (mortgage), €20k green loan, and €30k cash. Set Aankoopprijs = 350000 and Totale Investering = 500000. If the current value is €475k: Market ROI = +35.7%, Total ROI = −5.0%.

Note: Finance sensors only appear once you set the corresponding helper to a value > 0. Go to Settings → Devices & Services → Helpers.

Automations (from HA package)

Automation	Description
Monthly notification	Sends a push when the value updates
Threshold alerts	Notifies when value crosses your configured high/low limits
Significant change	Warns if monthly change exceeds ±2%
Yearly summary	Sends a year-in-review summary on January 1st

Dashboard

A ready-to-use dashboard is included in this repo. Copy the YAML from GitHub:

👉 funda-dashboard.yaml

Prerequisites

Install apexcharts-card from HACS for the history graph:

1. Go to HACS → Frontend → Search "apexcharts-card" → Install
2. Restart HA

Option A: Add as a new dashboard

1. Go to Settings → Dashboards → Add Dashboard
2. Choose "New dashboard from scratch"
3. Give it a name (e.g. "Funda") and click Create
4. Open the new dashboard → click ⋮ → Edit Dashboard → ⋮ → Raw configuration editor
5. Paste the contents of ha/dashboard/funda-dashboard.yaml
6. Click Save

Option B: Add cards to an existing dashboard

1. Open your dashboard → click ⋮ → Edit Dashboard → + Add Card
2. Choose Manual (YAML) at the bottom
3. Copy individual cards from ha/dashboard/funda-dashboard.yaml and paste them one by one

How it works

Login → /mijn/inloggen/ → login.funda.nl (OIDC) → session cookies
  ↓
API   → GET /v2/estimates → current value + 12-month history
      → GET /v1/homes → address + building details
  ↓
HA    → sensor.funda_house_value (Supervisor API)
      → recorder.import_statistics (backfill history)

Troubleshooting

• Login fails: Check credentials in add-on Configuration
• No data: Check the add-on Log tab for detailed step-by-step output
• Profit/ROI empty: Set your purchase price in Settings → Helpers → Funda Aankoopprijs
• No history graph: Install apexcharts-card from HACS