Property Data
Across 16 Markets

One API for comparable property sales from official government registries. Not estimates. Not listings. Real transactions recorded by tax authorities.

Try It Now API Docs

GET /v1/comps

// NYC comparable sales curl "https://api.nwc-advisory.com/v1/comps
?market=nyc&zip_code=10001&months=12" { "results": [ { "sale_price": 1,250,000, "sale_date": "2025-11-15", "address": "315 7 Avenue, 10E", "property_type": "Condo", "neighborhood": "Chelsea" } ], "count": 42, "statistics": { "median": 950,000 } }

Why Not Zillow or ATTOM?

Most property APIs cover one country and return estimates. This one returns actual government-recorded sales across 16 markets.

Feature	Property Comps API	Zillow API	ATTOM	RentCast
Markets	16 countries	US only	US only	US only
Data type	Actual sales	Estimates	Actual sales	Actual sales
Source	Government registries	Algorithm	County records	MLS + public
PDF reports	Included (4 languages)	No	No	No
Free tier	50 req/mo	Deprecated	No	100 req/mo
Starting price	$29/mo	N/A	$250+/mo	$74/mo

16 Government Registries, One API

Every result is an actual sale recorded by a tax authority. Pass market= to select your market.

Clean, RESTful Endpoints

All endpoints return JSON. Add ?market=uk to any request.

GET/marketsList all 16 markets with metadataFree

GET/v1/compsSearch comparable sales within a radiusFree

GET/v1/statsArea statistics with property type breakdownFree

GET/v1/trendsMonthly price trends with YoY changePro

GET/v1/comps/csvDownload results as CSVFree

GET/v1/valuation/pdfBranded PDF valuation reportPro

GET/healthGateway status with all backend healthFree

Works With Everything

Simple GET requests. No SDK required.

# Search comparable sales in Dubai Marina
curl "https://api.nwc-advisory.com/v1/comps?market=dxb&area_name=Dubai+Marina&months=12&limit=10"

# Get London area statistics
curl "https://api.nwc-advisory.com/v1/stats?market=uk&postcode=E1+6AN"

# Download PDF valuation report for Paris
curl -o report.pdf "https://api.nwc-advisory.com/v1/valuation/pdf?market=fr&code_postal=75001&lang=fr"

import httpx

# Search NYC comparable sales
response = httpx.get("https://api.nwc-advisory.com/v1/comps", params={
    "market": "nyc",
    "zip_code": "10001",
    "months": 12,
    "limit": 10
})
data = response.json()
print(f"Found {data['count']} sales, median: ${data['statistics']['median']:,}")

// Fetch Singapore HDB resale data
const res = await fetch(
  "https://api.nwc-advisory.com/v1/comps?market=sg&town=Tampines&months=12"
);
const data = await res.json();
console.log(`${data.count} sales found`);
data.results.forEach(sale =>
  console.log(`${sale.flat_type} - S$${sale.price.toLocaleString()}`)
);

Simple, Transparent Pricing

Start free. Scale when you need to.

Basic

Free

50 requests / month
10 results per search
3 markets (UK, NYC, SG)
Comps + Stats + CSV

Get Started Free

Pro

$29/mo

1,000 requests / month
100 results per search
All 16 markets
Trends + PDF reports

Subscribe on RapidAPI

Ultra

$99/mo

10,000 requests / month
500 results per search
All 16 markets
Bulk search (20 locations)

Mega

$299/mo

50,000 requests / month
500 results per search
Portfolio analysis
Dedicated support

Built For Builders

From AI agents to full-stack apps. Simple GET requests, no SDK required.

🤖

AI Agents / MCP

Claude, GPT, Gemini

MCP server included. Give any LLM real-time access to property data. "What sold near 10001 last year?"

🏠

PropTech Apps

Valuation + Analytics

Add comparable sales to your platform. Power valuations, market reports, and investment analysis across 16 markets.

📊

Market Research

Cross-Market Intelligence

Compare pricing across London, NYC, Dubai, Singapore. Export CSV, track monthly trends, spot arbitrage.

📄

Automated Reports

PDF Generation

Generate branded valuation PDFs via API. Available in English, French, Spanish, Traditional Chinese.

🏦

Lending / Mortgages

Underwriting Support

Pull comparable sales to support loan applications. Median, percentile, and trend data for any location.

🌍

Investment Funds

Portfolio Analysis

Bulk search 20 locations at once. Portfolio analysis across markets. Built for RE PE, REITs, and family offices.

Official Government Sources

Every transaction comes from an official registry. Updated monthly.

UKHM Land Registry Price Paid Data31M transactions

FRDemandes de Valeurs Foncieres (DVF)8.3M transactions

DXBDubai Land Department1.3M transactions

SGHousing & Development Board973K transactions

TWMinistry of Interior, Actual Price Registry933K transactions

NYCNYC Department of Finance Rolling Sales558K transactions

USMiami, Cook, Philly, CT, DC, King County (SEA), Maricopa (PHX), Denver, Allegheny (PIT)4.1M+ transactions

IEProperty Services Regulatory Authority4.1M transactions

Property DataAcross 16 Markets