Finn.no Listings CSV Scraper

I need a small, quick-turnaround script that scrapes property data from Finn.no—rather than Zillow, Realtor.com, or Redfin—and drops the results straight into a CSV file. When I paste any Finn.no listings URL (individual ad, search results, or saved list), the script should loop through each property on that page and output one row per listing with the following exact column order:

• Street name
• House number
• Letter
• Postcode
• City
• Unit
• Type
• URL

Output must be TWO separate CSV files:
1. Apartments — Unit number left empty
2. Houses/other — Unit number set to H0101