SirJohn
Know what a Portuguese property is really worth
SirJohn launched on August 11, 2026 with 2 votes, #5,788 of 23,274 launches that month.
What it does
Paste a link from idealista and get a free property audit in seconds: know the real price of the apartment, the real tax cost and hidden risks and liabilities no agent would ever tell you.
SirJohn — Property analysis for buyers, agents, and owners in Portugal
Paste a Portuguese listing and get fair value, risk checks, rental yield and parish context in seconds — all sourced, allfrom sirjohn.ai
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