For months, the housing market has been waiting for the Budget to land, with talk of sweeping tax changes putting buyers and builders on edge.
According to RBC’s analysts, the warnings turned out to be louder than the measures themselves. The typical homebuyer, they say, has been “broadly protected” from the main tax rises, a shift that could help unfreeze activity after a subdued summer.
Home movers who put plans on hold may now feel able to get going again, especially if interest rates edge down before Christmas. After a sluggish second half of the year, RBC expects housebuilders to return to something like business as usual.
The most eye-catching property measure is a council tax surcharge on homes valued above £2 million. This “mansion tax” starts in April 2028 and comes in four bands, from £2,500 a year for properties worth £2 million to £2.5 million, rising to £7,500 for those valued at £5 million or more.
The valuations will be updated so the right homes are captured, and the bands will rise each year with inflation.
RBC notes that only a sliver of the housing stock is affected, Savills puts the number of qualifying homes across Great Britain at around 145,000, mostly in London and the South East, so the direct impact on housebuilders is limited.
The indirect effects are harder to predict. If high-end transactions slow or price growth eases, the ripple could be felt across the wider market.
The Budget also lifts the tax rate on dividends, property income and savings income by 2 percentage points from April 2027. That raises the basic, higher and additional rates to 22%, 42% and 47%.
The change to property income is expected to bring in roughly £500 million a year from 2028 to 2029. The Office for Budget Responsibility thinks this will shave about 0.1 percentage points off annual house price inflation from 2028, as higher taxes on landlords gradually erode returns.
The risk, as the OBR sees it, is a slow contraction in rental supply if demand holds up, which could force rents higher over time.
One relief for developers came in an unexpected place. After consulting with the industry, the Government has abandoned its earlier proposal to align the two landfill tax rates by 2030, a step the Home Builders Federation said could have added £15,000 to the cost of building a home.
Instead, ministers will keep the gap between the rates from widening. RBC argues that the feared cost increase had not been priced into shares, so there is no reason to expect a bounce now that the plan has been dropped.
A smaller but meaningful boost is a £48 million investment to expand planning capacity. This includes funding for 350 new planners in England through an expanded graduate scheme and a new careers hub for mid-career recruits, with total staffing increases targeted at 1,400 by the end of the Parliament
. The Government is also putting money into improving the speed and performance of environmental regulators. For housebuilders who have long complained about slow planning decisions, any extra resource in the system is welcome. A decision on social rent convergence is due in January.
For an industry that spent the autumn bracing for something harsher, the Budget looks less bruising than expected. The measures nibble at the edges of the housing market rather than cut into its core, leaving the sector hoping that the pause in activity will give way to a more confident spring.