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JoinAffix - Web Engineering
Web ApplicationsIndustry: Real Estate & Analytics

Commercial Real Estate Asset Intelligence Platform

Client: TerraMetric Capital (Institutional Property Investment Fund)

Building an interactive geospatial platform capable of rendering and filtering 100,000+ commercial parcel records with sub-50ms query responses.

Commercial Real Estate Asset Intelligence Platform
<45ms
Parcel Filter Query Latency
12 hrs/wk
Saved per Investment Analyst
The Challenge & Context

The Problem

Investment analysts spent hours cross-referencing zoning records, flood maps, and tax databases across slow, disconnected government websites.

Project Constraints

Key Constraints

  • Massive vector dataset rendering without browser crashes
  • Complex multi-polygon spatial intersection queries
Solution Architecture

Technical Approach & Execution

Utilized Mapbox GL with customized vector tile servers and PostgreSQL PostGIS spatial indexing paired with a responsive Next.js analytics dashboard.

Phase 01

Vector Tile Generation & Dynamic Layering

Built custom vector tiling pipelines that serve gigabytes of zoning and parcel data at 60 FPS in modern browsers.

Phase 02

Complex Spatial Filter Engine

Created a visual query builder allowing analysts to combine geographic boundaries, cap rates, and property sizes in real time.

Infrastructure Topology

Cloud & Deployment

  • Next.js App Router on Cloudflare Pages
  • PostgreSQL + PostGIS on AWS RDS
  • Vector Tile CDN Cache
Technology Stack

Tools & Languages

Next.jsTypeScriptPostGISMapbox GLTailwind CSSAWS

Key Engineering Lessons Learned:

  • Offloading polygon intersection calculations to PostGIS preserved snappy frontend interactivity

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