What is NPPI
The Nigeria Property Price Index (NPPI) is an open, automated index of real property asking prices across Nigerian states. It aggregates publicly listed prices from major property platforms and computes weekly medians, percentiles, and confidence scores for land, residential, and commercial properties.
Data Sources
NPPI scrapes public listing data from three platforms:
- PropertyPro.ng— covers major urban markets across all 36 states and the FCT.
- Nigeria Property Centre— strong coverage of Lagos, Abuja, and South-West states.
- Jiji.ng— broad national coverage including smaller markets.
How Prices Are Computed
For each combination of state, LGA, intent (buy/rent), and asset class (land/residential/commercial), we compute:
- Median asking price (the 50th percentile)
- 25th and 75th percentile prices (the interquartile range)
- Mean asking price
- Week-over-week change percentage
- Sample size and source diversity count
We use the median rather than the mean as the primary indicator because it is more robust to outliers, which are common in property listings.
Confidence Score
Each index entry carries a confidence score from 0 to 100, computed as a weighted average of three factors:
- Sample size (40%)— 20+ listings = 100, 5+ = 60, fewer = 20.
- Data freshness (30%)— within 1 week = 100, within 1 month = 60, older = 20.
- Source diversity (30%)— 3 sources = 100, 2 = 60, 1 = 20.
Limitations
- NPPI tracks asking prices, not final transaction prices. Actual sale/rent amounts may differ due to negotiation.
- Coverage varies by state. Rural areas and smaller states may have insufficient data for reliable indices.
- Listings may be duplicated across platforms. We attempt de-duplication but some overlap may remain.
- The index does not account for property condition, exact location within an LGA, or other qualitative factors.
- Data refreshes weekly. Intra-week price movements are not captured.
- This is not professional valuation or financial advice.
Legal & Data Usage
NPPI is committed to responsible and transparent data practices:
- We only scrape publicly available listing pages — no login, authentication, or paywall is bypassed.
- We respect each platform’s
robots.txtdirectives and enforce rate limiting (1.5 s delay between requests) to avoid overloading source servers. - We do not reproduce full listing content. Only aggregate statistics (medians, percentiles, confidence scores) are computed and displayed.
- All data sources are credited. See ATTRIBUTION.md for full attribution details.
- Individual comparable listings shown in the Fair Price Check feature link directly to the original source on the listing platform.
Contact
NPPI is a product of Land Republic. For questions, partnerships, or data concerns, contact us at support@landrepublic.co.
If you represent a data source and have concerns about how your data is used, please reach out and we will respond promptly.