Privacy Policy — NipponHomes Property Search Extension
Overview
"NipponHomes Property Search" is a Chrome extension that scans property listing data from NipponHomes.com and saves it to a Google Sheet of your choosing. This policy explains what data the extension accesses, how it is used, and how it is stored.
Data the Extension Accesses
Property listing data
When you click "Scan This Listing," the extension reads publicly visible information from the current NipponHomes listing page, including property name, price, address, coordinates, specifications, images, and other details displayed on the page.
Google account information
The extension uses Google OAuth 2.0 (via the Chrome Identity API) to authenticate you with the Google Sheets API. It requests the spreadsheets scope so it can write data to a spreadsheet you specify. The extension does not access your email, contacts, calendar, or any other Google services.
Google Maps Geocoding API
If you provide a Google Maps API key, the extension sends property coordinates to the Google Maps Geocoding API to resolve a human-readable address. No other data is sent to Google Maps.
User-provided settings
The extension stores the following settings locally in your browser using the Chrome Storage API:
- Google Sheets URL
- Sheet tab name
- Google Maps API key
- Auto-save preference
How Data Is Used
- Property data is used solely to populate a row in your Google Sheet.
- OAuth tokens are managed by Chrome's built-in identity system and are used only to authenticate requests to the Google Sheets API.
- Your Google Maps API key is used only to call the Geocoding API for address lookup and is never transmitted anywhere else.
Data Storage and Sharing
- All user settings (Sheet URL, tab name, API key, preferences) are stored locally in your browser using
chrome.storage.local. They are never transmitted to any server operated by the extension developer. - The extension does not collect, store, or transmit any personal data to the extension developer or any third party.
- The extension does not use analytics, tracking, or telemetry of any kind.
- The extension communicates only with the following external services, and only when you initiate an action:
- Google Sheets API (
sheets.googleapis.com) — to write scanned data to your spreadsheet - Google Maps Geocoding API (
maps.googleapis.com) — to resolve coordinates to an address (only if you provide an API key)
- Google Sheets API (
Permissions Explained
| Permission | Why it's needed |
|---|---|
activeTab |
To read listing data from the current NipponHomes page when you click "Scan" |
scripting |
To inject the content script that extracts listing data from the page |
storage |
To save your settings (Sheet URL, tab name, API key) locally in the browser |
identity |
To authenticate with your Google account via OAuth for Google Sheets access |
Host: nipponhomes.com |
To run the content script on NipponHomes listing pages |
Host: googleapis.com |
To make authenticated requests to the Google Sheets and Geocoding APIs |
Data Retention
The extension does not maintain any data beyond what is stored locally in your browser. Uninstalling the extension removes all locally stored settings. Data written to your Google Sheet is governed by your Google account and Google's privacy policy.
Children's Privacy
This extension is not directed at children under 13 and does not knowingly collect information from children.
Changes to This Policy
If this policy is updated, the revised version will be posted at this same URL with an updated date.
Contact
If you have questions about this privacy policy, please open an issue on the extension's GitHub repository.