The latest data from TwentyCi shows that new instructions and sales agreed during the period came to 1,710,950 and 1,257,053, which are increases of 2.1% and 2.3% respectively.
However, the number of fall-throughs during 2025 came to 303,538, which compares to 290,585 in the previous year.
Property price changes stood at 1,125,158 for the period, up nearly 11% year-on-year, TwentyCi noted.
The number of withdrawn properties hit 803,612, an increase of 7.6% annually.
Katy Billany, executive director of TwentyEA, said: “H1 25 enjoyed a strong level of transactions, supported by the stamp duty concession. At the start of the year, residential buyers still benefitted from the temporary higher nil-rate threshold of £250,000, which reverted to £125,000 on 31 March 2025. Meanwhile, first-time buyers saw their nil-rate threshold return to £300,000 from £425,000.
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“The conclusion of the stamp duty relief removed a key support for transactions, ultimately slowing activity. We saw significant market softening in the latter part of 2025, driven by reduced consumer confidence ahead of the November Budget.
“This was further reinforced by the announcement of a mansion tax on properties valued over £2m, due to take effect in April 2028, which has led to further high-end buyer caution in the premium market. Also, rising second-home council tax rates discouraged buyers from purchasing extra properties, slowing transactions in the top-end and holiday home market.”
Average let agreed nears £1,500
The average let agreed price in 2025 came to £1,495 per month, which is in line with the prior year.
The number of new letting instructions rose by 9%, with lets agreed also increasing by 6% annually.
Billany added: “Outer London experienced the largest year-on-year increase in let agreed, rising by 14.1%. Wales also emerged as an increasingly attractive rental location, experiencing a 11.8% growth year-on-year.
“Northern Ireland was the only region to see lets agreed fall, with a decline of 6.3% compared to 2024. In terms of major cities, Cardiff and Leeds led the way with a 12% increase in lets agreed year-on-year.”
