What is AI property analysis?

AI property analysis uses artificial intelligence to evaluate a property's condition, layout, and features from a walkthrough video. RealtyLens processes the video through a 5-step AI pipeline to generate floor plans, room-by-room condition scores (1-10 scale), issue detection with repair cost estimates, and MLS-ready listing copy — all in under 5 minutes.

How does RealtyLens generate floor plans from video?

RealtyLens analyzes your walkthrough video to detect room transitions, doorways, and spatial relationships. The AI maps room adjacencies and connection types to generate an accurate spatial floor plan — no measuring tape or special equipment needed.

How accurate are the AI condition scores?

RealtyLens provides granular 1-10 condition ratings for every room, assessing walls, floors, ceilings, and fixtures individually. The AI detects cracks, water damage, wear patterns, and other issues with severity levels. While not a replacement for a licensed home inspection, these scores give agents a reliable preliminary assessment for listing preparation.

How long does a property analysis take?

The average analysis takes about 5 minutes from upload to complete report. You record a walkthrough video (typically 3-5 minutes), upload it to RealtyLens (1 minute), and the AI generates everything in approximately 3 minutes.

What does the AI property report include?

A RealtyLens report includes: AI-generated spatial floor plans, room-by-room condition scores (1-10 scale), feature detection (fixtures, appliances, finishes), issue tracking with severity levels and repair cost estimates, natural light assessment, MLS-ready listing copy with headline and highlights, value estimates, and target buyer profiles.

Can RealtyLens replace a home inspection?

RealtyLens is designed to complement — not replace — a licensed home inspection. It gives real estate agents a fast, detailed preliminary assessment for listing preparation, pricing strategy, and client conversations. For formal transactions, a licensed inspector should still be engaged for structural, electrical, and plumbing evaluations.

RealtyLens

for saleRealtyLens property overview

$860,000

840 E 51st St

Brooklyn, NY, 11203

View more Brooklyn, NY property pages

5Beds

3Baths

2,076Sqft

$414$/sqft

Comps

Listing Notes

Completely Gut-Renovated. Everything New. Separate Apartment with Separate Gas & Electric Meters.

Market Insights

Below nearby median-37%

$414/sqft vs a nearby median of $660/sqft.

Nearby median$660/sqft

Nearby properties8

Property size2,076 sqft

-37% versus the nearby median price per square foot.
Price history is limited, so current comps matter more than trend alone.
2,076 sqft creates a usable price-per-square-foot read.

Pricing Read

Yardstick fair value$1.24M$1.12M – $1.36M · 42% confidence

vs ask $860k−$380k (−44.2%)

Asking price is about 44.2% below the fair value — likely to draw competing offers if it's still on market.

$660/sqft median across 5 tight comps × 2,076 sqft= $1.37M

Open Class C HPD violations−$82k −6.0%
Transit access−$41k −3.0%
Days-on-market gravity−$41k −3.0%
Pre-war character+$34k +2.5%

Cumulative NYC adjustments−$130k−9.5%

Property Read

FreshnessVerification recommended

The page is useful for research, but the status and price should be verified before acting.

Market Position-37% vs nearby

The asking price per square foot is below the nearby median, which can be worth a closer comp check.

Price MovementInitial price point

Price history is still limited; review again as more market activity becomes available.

Diligence Read1 item to check

AI ReadinessReady to analyze

Assistant read

Generate a buyer-agent read of this listing — pricing, risks, comp check, and negotiation leverage. Takes a few seconds.

Generated from the facts shown on this page and nearby market data. Not a professional appraisal.

Listing Details

Days on market: 232 days
Last price change: No change recorded
Listed: Sep 22, 2025
Photos: 14 photos
Property type: single family
Status: for sale
Last sold: May 27, 2015 · $40,000
Garage: 1 space

Features & Amenities

Garage 1 Or More

Photos

Building Facts

Year built: 1940
Stories: 1
Total units: 2
Residential units: 2
Building area: 2,076 sqft
Lot size: 2,300 sqft
Land use: One and two family buildings
Building class: B1

From NYC public records where available.

Price History

May 4, 2026Initial record

$860,000for sale

Public Records

DOB violations0 open

5 total recorded against the building

HPD violations55 open

6 class C (immediately hazardous)

ACRIS documents49

Tax-lot deed, mortgage, and transfer records on file

311 calls (12 mo)29,111

Top: heat/hot water

Top complaint types in ZIP 11203

HEAT/HOT WATER3,474
Illegal Parking2,925
Noise - Residential2,634
Blocked Driveway2,568
UNSANITARY CONDITION1,374

Recent DOB

Nov 15, 2017V*-DOB VIOLATION - DISMISSED · AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE
May 30, 2012V*-DOB VIOLATION - DISMISSED · AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE
Jan 25, 2012V*-DOB VIOLATION - DISMISSED · AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE
Jan 13, 2011V*-DOB VIOLATION - DISMISSED · AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE

Recent HPD

Nov 24, 2025Class I · §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITE...
Mar 5, 2015Class C · § 27-2029 ADMIN. CODE: PROVIDE AN ADEQUATE SUPPLY OF HEAT FOR THE APARTMENT IN THE ENTIRE APARTMENT LOCATED AT APT 3, 1st STORY
Apr 21, 2014Class B · § 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR CEILING IN THE 1st ROOM FROM EAST LOCATED AT APT 2FL, 2nd STORY
Apr 21, 2014Class B · § 27-2005 ADMIN. CODE: REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN UNIFORM COLOR CEILING AND NORTH WALL IN THE 1st ROOM FROM EAST LOCATED AT APT 2FL, 2nd STORY

Sourced from NYC Open Data (DOB, HPD, ACRIS). Updated as the city republishes — check the original source for live status.