The Guernsey house price index
Built from 4,314 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.
592.9index today (1995 = 100)
+493%since 1995
5.9%a year, compounded
5.6 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 | £306,092 | £146,685 | £144,857 | £127,014 |
| £250,000 | £765,230 | £366,712 | £362,143 | £317,534 |
| £500,000 | £1,530,459 | £733,424 | £724,285 | £635,069 |
Year by year
| Year | Index | Change | Sales in the pairs |
|---|---|---|---|
| 2026 | 592.9 | -0.5% | 129 |
| 2025 | 596.1 | +3.4% | 173 |
| 2024 | 576.4 | +3.9% | 168 |
| 2023 | 555 | -3.9% | 145 |
| 2022 | 577.8 | +20.4% | 252 |
| 2021 | 479.9 | +2.8% | 262 |
| 2020 | 466.8 | +13% | 277 |
| 2019 | 413 | +2.8% | 240 |
| 2018 | 401.6 | +4.1% | 227 |
| 2017 | 386 | -1.6% | 214 |
| 2016 | 392.3 | -4.2% | 183 |
| 2015 | 409.3 | -2.8% | 169 |
| 2014 | 421.2 | -0.8% | 202 |
| 2013 | 424.5 | +1.1% | 207 |
| 2012 | 419.7 | +7.1% | 275 |
| 2011 | 391.8 | -3.1% | 302 |
| 2010 | 404.2 | +11.5% | 341 |
| 2009 | 362.5 | +2.2% | 312 |
| 2008 | 354.8 | +9.1% | 289 |
| 2007 | 325.2 | +7.1% | 413 |
| 2006 | 303.7 | +6.8% | 401 |
| 2005 | 284.3 | +1.9% | 354 |
| 2004 | 278.9 | +5.3% | 364 |
| 2003 | 264.7 | +9.8% | 337 |
| 2002 | 241.1 | +14.3% | 394 |
| 2001 | 211 | +8.9% | 329 |
| 2000 | 193.7 | +25.2% | 324 |
| 1999 | 154.8 | +1.1% | 299 |
| 1998 | 153.1 | +17.3% | 262 |
| 1997 | 130.5 | +12.4% | 290 |
| 1996 | 116.1 | +16.1% | 272 |
| 1995 | 100 | — | 222 |
Strongest year: 2000 at +25.2%. Weakest: 2016 at -4.2%. 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.