The Guernsey house price index
Built from 4,295 pairs of sales — every address in the register that has sold at least twice — so it measures the same buildings changing hands, not a changing mix of what happened to sell. 1995 = 100.
591.2index today (1995 = 100)
+491%since 1995
5.9%a year, compounded
5.5 yearstypical time between sales
What a past price is worth now
Carrying a price forward by the index answers "what would that have to be today to be the same purchase" — not what the house is worth, which depends on the house.
| If it sold for | in 2000 | in 2010 | in 2015 | in 2020 |
|---|---|---|---|---|
| £100,000 | £305,372 | £146,409 | £144,442 | £126,568 |
| £250,000 | £763,430 | £366,023 | £361,104 | £316,420 |
| £500,000 | £1,526,860 | £732,046 | £722,209 | £632,841 |
Year by year
| Year | Index | Change | Sales in the pairs |
|---|---|---|---|
| 2026 | 591.2 | -0.8% | 110 |
| 2025 | 596.3 | +3.4% | 173 |
| 2024 | 576.6 | +3.9% | 168 |
| 2023 | 555 | -4% | 145 |
| 2022 | 578 | +20.4% | 251 |
| 2021 | 480.2 | +2.8% | 261 |
| 2020 | 467.1 | +13% | 275 |
| 2019 | 413.4 | +3% | 239 |
| 2018 | 401.4 | +4% | 225 |
| 2017 | 386.1 | -1.6% | 214 |
| 2016 | 392.5 | -4.1% | 183 |
| 2015 | 409.3 | -2.9% | 168 |
| 2014 | 421.3 | -0.7% | 202 |
| 2013 | 424.3 | +1.1% | 206 |
| 2012 | 419.5 | +6.5% | 274 |
| 2011 | 394 | -2.4% | 301 |
| 2010 | 403.8 | +11.2% | 339 |
| 2009 | 363.1 | +2.3% | 312 |
| 2008 | 354.9 | +9.2% | 289 |
| 2007 | 325 | +7.1% | 413 |
| 2006 | 303.5 | +6.8% | 400 |
| 2005 | 284.3 | +2% | 354 |
| 2004 | 278.9 | +5.3% | 364 |
| 2003 | 264.8 | +9.9% | 337 |
| 2002 | 240.9 | +14.2% | 393 |
| 2001 | 211 | +9% | 329 |
| 2000 | 193.6 | +25.1% | 322 |
| 1999 | 154.8 | +1.1% | 299 |
| 1998 | 153.1 | +17.3% | 261 |
| 1997 | 130.5 | +12.5% | 289 |
| 1996 | 116.1 | +16.1% | 272 |
| 1995 | 100 | — | 222 |
Strongest year: 2000 at +25.1%. Weakest: 2016 at -4.1%. Half of all repeat sales are 3.1–9.9 years apart.
How it is built, and what it cannot do
- Only addresses that sold twice count, and only pairs at least nine months apart. A year is published only once at least 40 sales sit behind it.
- Pairs where the price moved more than eightfold are dropped — that is a rebuild or a data error, not the market.
- Nominal £1 transfers are excluded entirely.
- It cannot value a specific house, and it says nothing about a property that has been extended between sales — that improvement shows up as "the market", which is the known weakness of every repeat-sales index.