Ibstock, the UK's largest brickmaker, issued its second profit warning of 2024 after sales plunged 22% below expectations in Q3, forcing a 20% production cut. UK brick market volumes fell 17% year-on-year through July and August, with weakness persisting into October. The company now expects full-year profits in the mid-£40m range — roughly 25% below the analyst consensus of £59m. Shares dropped 13% on the day, extending a 12-month decline that has halved the company's market capitalisation to £277m. The numbers land days after the Office for Budget Responsibility cut its forecast for new homes built by 2031 by 190,000 units. Housing secretary Angela Rayner has acknowledged only a "slim chance" of hitting the government's 1.5 million homes target this parliament, with estimates suggesting it could be missed by a third. The distance between political ambition and construction reality is widening, not narrowing. Ibstock directed specific criticism at the delay of the Your First Home scheme — designed to let first-time buyers in England purchase newbuilds with a 2.5% deposit — until April 2027. The company called the programme a "welcome and potentially meaningful intervention" but labelled the delay "disappointing," noting it has "put additional pressure on near-term demand." A policy announced as a demand stimulus becomes, through delayed implementation, a demand suppressant: buyers and developers wait rather than act. CEO Joe Hudson's response was textbook demand-side contraction management: cut production to prevent inventory build-up, slash overhead and discretionary spend, protect cash. These are survival moves, not growth moves, and Hudson acknowledged the production cuts themselves create "an additional near-term earnings headwind." The company is shrinking to match a shrinking market. Peel Hunt analysts Clyde Lewis and Sam Cullen identified the core bottleneck plainly: "lower interest rates remain key to a pickup in sector activity and share prices." The Your First Home scheme may help at the margin, but the fundamental constraint is borrowing costs. Until mortgage rates fall materially, demand-side policy tweaks operate against a locked brake. The structural pattern here is a government caught between an ambitious housing target and the tools available to meet it. The 1.5 million homes pledge requires a functioning pipeline from planning permission through materials supply to buyer demand. Each link in that chain is currently under stress. Brickmakers cut production, developers delay starts, buyers cannot afford deposits or mortgage payments, and the policy designed to break the logjam won't arrive for another two and a half years. Ibstock is a leading indicator, not an outlier. When the largest supplier of a core construction input cuts output by a fifth, the signal is that the housebuilding sector is contracting at a pace that policy has not yet addressed. The gap between the 1.5 million target and the OBR's revised forecast is not a rounding error — it is 190,000 homes that will not exist.