Price Growth
Capital appreciation data for any UK outcode or postcode. 1-year, 3-year, 5-year, and 10-year growth rates — calculated from HM Land Registry transaction data. See what an area has returned over any time horizon.
Available from Growth — £49/month. 10,000 requests included.
Investment screening
Compare capital appreciation across buy-to-let target areas. 5-year and 10-year growth rates alongside yield data gives the full investment picture.
Property portals
Show buyers how much similar homes have appreciated. "SW1A has grown 18% in 3 years" on a listing page is a conversion tool, not just data.
Mortgage applications
Model loan-to-value trajectories. A property in a 4%/year growth area looks very different in 5 years than one in a flat market.
Portfolio valuation
Estimate total portfolio appreciation without a surveyor. Apply area growth rates to last-known sale prices for a quick uplift estimate.
Market reports
Generate area performance reports at scale. Feed a list of outcodes and get back ranked growth tables — annual market analysis automated.
Stamp duty calculators
Combine price growth with stamp duty to show total cost of buying today vs 2 years ago — useful context for first-time buyer tools.
Example request
Pass an outcode or full postcode. Response includes four time horizons plus the absolute price change.
5-year growth — example areas
Illustrative only — actual figures from HM Land Registry transactions.
Example response
All four time horizons plus absolute price change and PSF trend.
{
"outcode": "SW1A",
"area_name": "Westminster",
"data_from": "2014-01-01",
"data_to": "2024-12-31",
"transactions_used": 847,
"growth": {
"1yr_pct": 3.2,
"3yr_pct": 8.7,
"5yr_pct": 18.4,
"10yr_pct": 42.1
},
"prices": {
"median_now": 1850000,
"median_1yr_ago": 1792400,
"median_5yr_ago": 1562500,
"median_10yr_ago": 1302600
},
"psf": {
"median_now": 1240,
"median_5yr_ago": 1048,
"5yr_psf_growth_pct": 18.3
},
"by_type": {
"flat": { "5yr_pct": 16.2 },
"terraced": { "5yr_pct": 21.4 },
"semi": { "5yr_pct": 24.1 }
},
"cached_at": "2025-01-15T09:30:00Z",
"cache_ttl_hours": 24
}
Response fields
All growth rates are annualised and calculated from median transaction prices in the outcode. Minimum transaction threshold: 20 sales per period — areas below this return a data_confidence warning.
| Field | Type | Description |
|---|---|---|
| outcode | string | Normalised outcode (e.g. "SW1A") |
| growth.1yr_pct | float | Median price change % vs 12 months ago |
| growth.3yr_pct | float | Total price change % over last 3 years |
| growth.5yr_pct | float | Total price change % over last 5 years |
| growth.10yr_pct | float | Total price change % over last 10 years |
| prices.median_now | integer | Current median sold price (pence) |
| psf.median_now | integer | Median price per square foot (pence), where floor area data available |
| by_type | object | Growth breakdown by property type (flat, terraced, semi-detached, detached) |
| transactions_used | integer | Number of Land Registry transactions used in calculation |
| data_confidence | string | "high" / "medium" / "low" — based on transaction volume |
Why four time horizons
1-year figures catch current momentum. 5-year and 10-year figures reveal structural trends that short-term volatility masks. PropertyData's equivalent returns only a single growth figure — we return all four.
Related data products
Prices & Transactions →
Monthly price trends, distributions, and transaction-level sold price history by outcode.
Comparable Sales →
AI-ranked recent sales for any property — the same comps methodology used by surveyors.
Agent Market Share →
Which agents are winning in any area — listing counts, time-to-sell, and pricing accuracy.
Price Growth — available from Growth
Capital appreciation across four time horizons. Available from the Growth plan — 10,000 requests at £49/month. Start free with 100 calls, no card required.
Free: 100 calls/month • Growth: 10,000 calls @ £49 • No credit card to start