Privacy Policy

Last updated: July 17, 2026

Sightline (“we”) is a renovation visualization tool at sightline.house, run by an independent founder. This page explains, in plain language, what we collect and what we do with it.

What we collect

• Email address — if you provide it before generating renders, so your designs and shareable brief don't get lost.
• Design data — room dimensions, floor plans, material choices, and the conversation you have with the design assistant.
• Photos — room photos or floor plan images you choose to upload.
• Usage analytics — page views and product events (e.g. “render generated”), collected via PostHog, including approximate location from your IP and browser type.

How we use it

• To run the product: generate renders, reviews, and briefs from what you enter.
• To improve the product: understanding which features work and where people get stuck.
• To contact you about your designs, if you gave us your email. No spam, no selling your data — ever.

Who processes your data

Generating your renders and design advice involves sending your design data (and photos, if uploaded) to AI providers — currently OpenAI, Anthropic, and Google — under their API terms, which do not permit them to train on this data. Our infrastructure runs on Vercel (site hosting, image storage), Fly.io (backend), and Neon (database). Analytics run on PostHog.

Sharing

Briefs you create get a share link — anyone with that link can view that brief, including its renders and floor plan. That's the point of the feature; share links are unlisted but not access-controlled. We never sell personal data and never share your email with anyone.

Retention & deletion

We keep your data while it's needed to provide the service. Email rory.f.dunn@gmail.com from the address you gave us and we'll delete your email, designs, and uploads — typically within a few days.

Changes

If this policy changes materially, we'll update this page and the date above. Questions — same email as above.