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Property Sun & Shade Planner
Build a web app for homeowners, renters, and small property managers to evaluate sun exposure, shade timing, and future changes to yards, patios, balconies, and shared spaces. The strongest demand appears where people need practical decisions such as tree placement, comfort planning, and judging whether an outdoor area is usable in summer.
Why this matters
You have an outdoor area that looks fine on paper but becomes unpleasant or unusable depending on time of day, season, and surrounding obstacles. Standard weather tools tell you sunset time for a city, not whether your yard, balcony, dog run, or shared green space is actually blasted by sun or already dark behind hills and buildings. You may also be considering planting trees or changing the layout, but guessing future shade is unreliable. Existing shade viewers are interesting yet often too rough around trees, too map-centric, or too clumsy on mobile for everyday planning. What you really want is a simple property-level planner that helps you make comfort and layout decisions with confidence.
- · Built for Homeowners, renters with outdoor space, HOA boards, and small property managers who need to understand usability of patios, lawns, gardens, dog parks, and shared outdoor areas..
- · Most likely monetization: Freemium.
The Pain · Narrative
You have an outdoor area that looks fine on paper but becomes unpleasant or unusable depending on time of day, season, and surrounding obstacles. Standard weather tools tell you sunset time for a city, not whether your yard, balcony, dog run, or shared green space is actually blasted by sun or already dark behind hills and buildings. You may also be considering planting trees or changing the layout, but guessing future shade is unreliable. Existing shade viewers are interesting yet often too rough around trees, too map-centric, or too clumsy on mobile for everyday planning. What you really want is a simple property-level planner that helps you make comfort and layout decisions with confidence.
Score Breakdown
Market Signal
Go-to-Market
Homeowners in hot-weather metros who are deciding how to improve a patio, garden, balcony, or dog-friendly outdoor area.
a few hundred thousand reachable early adopters globally
SEO long-tail
$9/month
50 paid property reports or subscriptions from organic search within 30 days
MVP Scope · 1–2 weeks
- Build map search and property polygon selection for one pilot city
- Integrate sun-position and terrain shadow calculation for hourly playback
- Add manual object drawing with height input for trees and structures
- Generate simple daily sun-hours summary for selected polygons
- Create landing page with waitlist and sample property screenshots
- Add shareable report page with morning, midday, and evening snapshots
- Implement account save for up to three properties
- Add seasonal comparison view for summer and winter solstice dates
- Instrument analytics for searches, saved projects, and report downloads
- Launch content pages targeting searches about yard shade and patio sun exposure
Differentiation
Why This Might Fail
Self-rebuttal — the most important trust signal
- 1General consumers may treat it as a novelty and not enough of a recurring problem to justify subscription revenue.
- 2If the first few neighborhoods have wrong tree or building data, trust could collapse before retention is established.
- 3Free map-based tools may satisfy casual curiosity, leaving only a narrower slice willing to pay for property planning.
Evidence Summary
How AI synthesized this insight — no verbatim quotes
Multiple commenters described real planning uses beyond curiosity: checking eclipse visibility from home, estimating when terrain removes sunlight from a park, and wanting to model future tree placement for outdoor comfort. Several also discussed local inaccuracy around trees and structures, which suggests a commercial opening for a property-focused tool that combines scenario planning with clearer confidence and better usability.
Action Plan
Validate this opportunity before writing code
Recommended Next Step
Build
Strong demand signals detected. Real pain, real willingness to pay — start building an MVP.
Landing Page Copy Kit
Ready-to-paste copy based on real Reddit community language — no editing required
Headline
Property Sun & Shade Planner
Sub-headline
Build a web app for homeowners, renters, and small property managers to evaluate sun exposure, shade timing, and future changes to yards, patios, balconies, and shared spaces. The strongest demand appears where people need practical decisions such as tree placement, comfort planning, and judging whether an outdoor area is usable in summer.
Who It's For
For Homeowners, renters with outdoor space, HOA boards, and small property managers who need to understand usability of patios, lawns, gardens, dog parks, and shared outdoor areas.
Feature List
✓ Address-based hourly shade timeline for a selected date ✓ Manual add/remove trees and structures with height sliders ✓ Seasonal sun-hours report for a defined yard or patio polygon
Where to Validate
Share your landing page in r/HN · front_page — that's exactly where these pain points were discovered.
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