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Real Estate Market Intelligence โญ Today's idea

PropertyInsight - Investor-Grade Residential Market Data

Trustworthy residential market data for investors

For
Small and mid-sized US residential property investors and developers researching deals and markets
Who are
Frustrated by wrong or stale valuations, tax data and listings they can't get corrected, and by manual comp research that broad filters and missing comparison views leave unfinished
We build
A subscription market-intelligence website that shows data sources and freshness, offers a visible correction path, and provides side-by-side comp comparison, precise filtering and trend views on cancel-anytime monthly pricing
Unlike
Zillow, which shows inaccurate or outdated values and has no property comparison feature or way to correct errors
Reonomy, which locks customers into 1-year auto-renewing contracts starting at about $4,400 and has sparse rural data
PropertyRadar, which has delayed listings, state coverage gaps, no open API and a no-refund policy
We deliver
Data freshness and source labels on every valuation and comp
Side-by-side comp comparison tables and narrow filters that cut research time
Month-to-month pricing with clear trial terms and one-click cancellation
So that
Investors and developers can underwrite residential deals faster and with confidence in the data, without long contracts or hours of manual research
Revenue potential
$30K MRR
Build time
10-14 weeks for MVP
Target market
Small and mid-sized residential property investors and developers in the United States, including those outside major metros, who want market data and comps without enterprise contract prices
Tech stack
N Next.js logo Next.js P PostgreSQL logo PostgreSQL P Python logo Python S Stripe logo Stripe
Start building this

The Problem

Investors are underwriting deals on valuations, tax data and listings that are wrong or stale, and they can't get errors corrected: "My home's value went down $50k for no reason while other homes in my neighborhood stayed the same." Tools that are meant to help still leave research manual, because filters are too broad and there is no comparison view.

๐Ÿ’ฌ Real people expressing this pain
M Fernandez

“My home's value went down $50k for no reason while other homes in my neighborhood stayed the same.”

Trustpilot Review โ†—
Verified User in Real Estate

“Sometimes property values off, and tax and HOA fees not listed.”

G2 Review โ†—
R Susman

“Zillow incorrectly listed my multiunit property as 1 BR 1 BA instead of 4 BR 4 BA.”

Trustpilot Review โ†—
Tom Nosov

“Their listings are 7-14 days delayed.”

Trustpilot Review โ†—
gil

“information is not very up to date”

Trustpilot Review โ†—
Verified User in Real Estate

“I wasted so many hours finding bugs in their system, and despite all these bugs they chose to stick to their guns of their no refund policy.”

G2 Review โ†—
Verified User

“retrieving property names can be difficult, especially in rural areas where data is often sparse.”

G2 Review โ†—
Mark G.

“In order to find certain answers to questions the filters have to be very broad which requires a lot of work on my end to ultimately find the answer.”

G2 Review โ†—
Ed V.

“I wish they had a comparison feature where I can select several properties and have a table of all the amenities so I can see at a glance the similarities and differences.”

G2 Review โ†—
Cindy Rella

“Their data, while nice, can be found via other services like Propertyradar for only $50 a month”

Trustpilot Review โ†—
gil

“contracts are not clear that it is a 1-year obligation, with automatic renewal.”

Trustpilot Review โ†—
Tyler G.

“I also wish they had an open API we could webhook into instead of using Zapier”

G2 Review โ†—

Market Signals

Market Size
TAM: $2.32 Trillion; SAM: uncertain
Growth Rate
3.10% CAGR (2024 - 2033)
Search Trends
โ€”
Volume
โ€”
Growth

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property investment โ†— -31% real estate market data โ†— 0% residential property insights โ†’ Stable

Competitors

Direct Competitor Zillow Zillow

The most recognized consumer real estate portal. Investors use it as a lightweight alternative to manual research, mainly for sold comps and multifamily filtering, but it is not built as an investor intelligence tool.

Weaknesses
Inaccurate or outdated property values and details, such as Zestimates, bedroom/bathroom counts and tax or HOA data, Users and agents cannot get data errors corrected and report poor or unreachable customer support, No side-by-side property comparison feature

My home's value went down $50k for no reason while other homes in my neighborhood stayed the same.

โ˜… G2 sample avg ~4.4/5 (10 reviews); Trustpilot sample is mostly 1-star (20 reviews) ยท Trustpilot
Direct Competitor HouseCanary HouseCanary

Seed competitor in residential property data and analytics. No reviews or other evidence were collected for it.

Direct Competitor Reonomy Reonomy $4400 to get started (reviewer-reported); 12-month commitment with auto-renewal, no list price in evidence

Property and owner data platform used by commercial real estate brokers and investors to find comps, owner information and contacts. Reviewers call it detailed and all-in-one, but expensive and locked into annual contracts.

Weaknesses
Inaccurate emails and stale or sparse data, especially in rural areas, Filters must be very broad to get answers, No note search and awkward export

contracts are not clear that it is a 1-year obligation, with automatic renewal.

โ˜… G2 sample avg ~4.0/5 (4 reviews); Trustpilot sample mostly 1-star (10 reviews) ยท Trustpilot
Direct Competitor PropertyRadar PropertyRadar About $50 a month (reviewer-reported); $75 charged after a trial cancellation request (reviewer-reported)

Investor-focused property data and list-building platform used for foreclosure monitoring, motivated-seller lists, owner contact data and direct-mail marketing. It is often cited as the better-value alternative to Reonomy.

Weaknesses
Some inaccurate data and bugs, and auctions listed that do not happen, Listings reported as 7-14 days delayed, Weak skip tracing

I wasted so many hours finding bugs in their system, and despite all these bugs they chose to stick to their guns of their no refund policy.

โ˜… G2 sample avg ~4.5/5 (10 reviews); Trustpilot sample mostly 5-star (8 reviews, 1 one-star) ยท G2
Direct Competitor CoreLogic CoreLogic

Seed competitor in property data. No reviews or other evidence were collected for it.

Direct Competitor Propstream Propstream

Seed competitor in investor property data. No direct reviews were collected; the only mention is a PropertyRadar G2 reviewer who says it compares with Propstream but has never used it.

Redfin Redfin

A consumer brokerage and listing portal. The evidence is mostly about agent service and listing accuracy, not investor research workflows. One reviewer uses it as an on-the-go research tool for property values.

Weaknesses
Wrong home value estimates and property tax data that users report are never corrected, Misleading listing photos, Agent communication and service issues

Redfin lists wrong property tax information and obviously did not verify this either.

โ˜… Trustpilot sample mostly 1-star (20 reviews, a few 5-star) ยท Trustpilot

How the offer ladders up

1 Lead magnet
$0 (email required)
Free Metro Market Snapshot

A one-page report for any US metro or ZIP showing median price trend, days on market, rent-to-price ratio and a data freshness stamp.

2 Frontend
$19 one-time
Single Deal Comp Report

A side-by-side comp comparison table and valuation range for one property, with sources and recency for every comp.

3 Core
$49/month, cancel anytime
Investor Plan

Unlimited market dashboards, comp comparison, precise filters, trend and forecast views, saved searches and CSV export for covered markets.

4 Backend
$149/month, cancel anytime
Pro Plan with API

Open API and webhooks, CRM export, custom market alerts, portfolio-level analytics and priority data-correction requests.