Proptech platforms that close deals at scale.
For listing websites, brokerages, property managers, and mortgage lenders. We plug into official listing feeds, build lightning-fast map search, and create the tools agents actually use — so buyers stay on your site instead of drifting to Zillow.
The data is the product — treat it that way.
Real estate software has a unique problem: the listing data is the product, and the data is a mess. Feeds update every 15 minutes in inconsistent formats, the same house shows up in three feeds with different photos, and map searches need to feel instant. Most teams underestimate this until the site is live and customers start complaining.
We've built listing websites, property search engines, agent portals, and mortgage application flows. We know the official listing systems (called MLS) inside and out — including their quirks and their legal rules about what you may display. We build around those constraints so you never have to think about them.
Buyers compare your site to Zillow and Redfin, whether that's fair or not. We build to that standard — fast map search, real-time availability, saved searches with instant alerts, and property pages that load in under a second.
Proptech sub-verticals.
What we actually build.
Plugging into official listing feeds
We connect your site to the official listing databases (MLS), clean up the messy data, remove duplicates, and keep everything fresh — so your listings are always accurate and complete.
Fast map-based property search
Draw-on-the-map search, radius, school district, and neighborhood filters — with results that come back in under 200ms, even with millions of listings.
Tools for agents & brokerages
Capture leads, route them to the right agent, automate follow-ups, schedule showings, and give sales managers reports they'll actually read — all synced with live listing changes.
Mortgage & financing flows
Pre-qualification calculators, document collection, instant bank verification through Plaid, and loan workflows that get buyers to closing faster — without skipping any legal steps.
Virtual tours & 3D walkthroughs
Matterport 3D tours, 360° photo galleries, and augmented-reality floor plans — delivered so they load quickly even on slow connections, without dragging down the rest of the page.
Offers, contracts & e-signatures
Offer and counter-offer tracking, DocuSign contracts, deposit handling, and a complete paper trail that protects agents and buyers if a deal goes sideways.
How MLS data goes from feed to fast.
Most listing platforms fail at the data layer, not the UI. Inconsistent MLS formats, stale statuses, and unprocessed duplicates are engineering problems — not content moderation. Here's how we solve each stage.
MLS Data Ingestion
- RESO Web API & legacy RETS feed polling
- Real-time change event subscriptions
- IDX licensing enforcement at ingestion layer
- Cross-MLS deduplication by APN / address hash
- Photo licensing validation & attribution tracking
Normalization & Enrichment
- Field-level type casting & data quality scoring
- Address standardization (USPS CASS-certified)
- Geocoding with fallback chain (Mapbox → Google)
- School district & neighborhood polygon assignment
- Cloudflare Images resizing & WebP conversion pipeline
Search & Discovery Layer
- PostGIS polygon, radius & bounding-box geo queries
- Elasticsearch full-text + faceted filter index
- Sub-200ms p95 at 10M+ listing volumes
- Saved searches with real-time status-change alerts
- CDN-cached map tile layer with daily refresh
IDX display compliance built into the pipeline
Required fields · Attribution rules · Status refresh timing · Photo licensing enforcement
Proptech integrations we ship.
MLS feeds, mapping APIs, e-signature tools, and mortgage infrastructure — each with production-specific edge cases we've already hit and engineered around.
Built for regulated markets.
Real estate sits at the intersection of consumer protection law, housing regulations, and financial compliance. We build every platform to meet these constraints, not retrofit them.
Tools we reach for first.
From data audit to live listings.
Every real estate engagement starts with a data landscape audit and ends with monitoring that keeps your listing quality production-safe when MLS feeds change.
Data landscape audit
We map every MLS feed, data contract, IDX license, and display rule that applies to your platform before we write a line of code. You get a written data architecture document and an IDX compliance checklist your legal team can review.
Pipeline & search architecture
We design the ingestion pipeline, normalization strategy, search index schema, and geo query architecture. Decisions like PostGIS vs. Elasticsearch vs. hybrid are made here, with benchmarks, not opinions.
Build with quality controls in-line
Data quality gates run at ingestion, not after. Duplicate detection, photo validation, and IDX compliance rules are enforced in the pipeline so your search index stays clean. Search performance budgets are monitored on every deploy.
Launch & listing reliability handoff
We instrument real-user search latency, MLS sync lag, and data freshness monitors. You get runbooks for MLS outages, feed migrations, and IDX rule changes — plus on-call escalation paths for listing emergencies.
Where to start.
Frequently asked.
7 questions answered. Still have one? Reach out.
Yes. Every regional listing database (MLS) has its own quirks — how it handles status changes, photo rules, and update timing. We've worked with many of them. We document the quirks up front and build a layer that smooths them out, so your product never sees the mess.
Let's build what's next.
Tell us what you’re building. We’ll tell you how we’d help.