Policy announcements are often judged on their headline figure, and on Wednesday 28 October 2026 the housing market's headline figure was £4.7bn. That is the amount of government-backed lending, about $6.24bn, set aside for the "Your First Home" scheme announced in Chancellor John Healey's first Budget. The FTSE 100 itself barely flinched, rising 7.96 points to 10,694.50, but its housebuilding member Barratt Redrow (LSE:BTRW) fell 6.57% as investors weighed the sum against their expectations.

The sell-off extended across the sector. Market reports said that the homebuilders index dropped more than 6% after the Budget speech, its sharpest one-day decline since January 2025, wiping out a rally of roughly 9% that had built since the scheme was first announced in September.

Measuring £4.7bn against the need

The most direct benchmark came from one market commentator. He said the announcement "has fallen some way short" and estimated that about £2bn a year would be needed to lift housing sales volumes.

Dividing the £4.7bn total by the analyst's £2bn annual estimate gives 2.35 (4.7 ÷ 2 = 2.35). In other words, the entire pot would cover a little over two years of support at the level he suggested would make a meaningful difference. That is a simple comparison rather than an official projection of how quickly the money will be spent, but it shows why analysts questioned the scheme's staying power.

One market commentator made a similar point, saying the main problem related to the level of funding and how long it would therefore last. A scheme that may run out relatively quickly offers builders less certainty when planning land purchases, construction and sales over a multi-year cycle.

Funding was not the only shortfall. The scheme launches next spring, but the first loans are not expected until April 2027. Analysts said that misses the spring selling season, traditionally an important window for housing transactions.

There is a risk that a gap between announcement and availability creates a pause in demand. Press reports noted that analysts flagged disappointment over the scheme's total funding and timing, which could soften sales in the interim. In general terms, if prospective buyers expect help to arrive later, some may delay purchases until it does.

Costs for builders

The third element of disappointment concerned what the scheme asks of developers. Fees will be progressive, running from 1% to 4% according to the number of homes a builder sells through the scheme each year, with the 4% rate applying above 250 homes. Developers will also contribute to the subsidy, and applicants will be subject to income caps.

One market commentator judged that the 4% top fee was well above the roughly 1% the market had anticipated, meaning the scheme would lift builders' profitability by less than previously assumed.

Taken together, the three factors produced a clear picture:

  • Size: £4.7bn in total, against an estimated need of about £2bn a year
  • Speed: First loans not until April 2027, after the spring selling season
  • Cost: Fees of up to 4% for the largest users, versus expectations near 1%

How the shares reacted

Barratt Redrow's 6.57% fall was mirrored across the sector. Rival housebuilder Taylor Wimpey (LSE:TW.) dropped 7.3%, and Persimmon (LSE:PSN), which left the FTSE 100 for the FTSE 250 in September, fell 6.9%.

Despite these heavy falls, the FTSE 100 ended slightly higher. Banks, a large part of the index, rose 1.1% after the bank corporation tax surcharge was raised to 6% from 3%, rather than to the 8% investors had feared. Energy stocks climbed 0.8% as Brent crude rose to $116.37 a barrel. Those gains outweighed the losses in housebuilders and in large consumer names. The more domestic FTSE 250 fell 0.3%.

The new scheme succeeds Help to Buy, which closed in March 2023. Housebuilder investors have long paid close attention to government demand support because it can influence sales rates and pricing, particularly for first-time buyers. The rally since September showed how much the market hoped a successor would provide a similar lift.

The Budget's fiscal context helps explain the restraint. The Office for Budget Responsibility put fiscal headroom at £15bn for 2029-30, down from £23.6bn in March. Healey stressed that "fiscal discipline is my first commitment", and with headroom tighter, a larger housing commitment may have been harder to accommodate.

Beyond the scheme, mortgage affordability remains a key driver for housing. The 10-year gilt yield held at about 5.33% after the Budget, and the OBR expects inflation to average 3.4% in 2027 before returning to the 2% target in 2028. The Bank of England's next decision on 5 November will be closely watched for signals on the rate path.

Key dates to watch

  • Thu 5 Nov 2026: Bank of England MPC decision and Monetary Policy Report, important for mortgage pricing and housing demand.
  • Thu 12 Nov 2026: ONS first estimate of UK GDP for July to September.
  • Wed 2 Dec 2026: FTSE December review announcement after the close, following the 1 December cut-off.
  • Thu 17 Dec 2026: Bank of England's final MPC decision of 2026.
  • April 2027: First "Your First Home" loans expected, the date the £4.7bn starts to reach buyers.

The bottom line

The £4.7bn behind the "Your First Home" scheme fell short of what housebuilder investors had priced in. Measured against one analyst's estimate of £2bn a year needed to move volumes, it covers only a little over two years; its loans arrive after the spring selling season; and its fees for the biggest builders are higher than expected. Barratt Redrow's 6.57% fall and the sector's sharpest drop since January 2025 reflected that reassessment, while the FTSE 100's bank-heavy weighting kept the wider index steady.