New Property Developments London 2026: What's Changing

London's planning pipeline has quietly swelled to one of its most active states in a decade. The Greater London Authority confirmed last month that more than 34,000 new residential units received planning permission in the first half of 2026 alone — a figure that reflects both renewed developer confidence and the Starmer government's push to hit 1.5 million homes nationally by 2029.

The timing matters. Stamp duty reform introduced in early 2025 clawed back some buy-to-let investors who had retreated after the surcharge hikes of the late 2010s. Average London house prices are holding above £500,000 despite two years of patchy mortgage markets, and the Elizabeth Line corridor — stretching from Shenfield through to Reading — continues to command a premium that is pulling development eastward toward areas that were, five years ago, considered marginal bets.

The Sites Driving the Conversation

Two schemes dominate the current debate. At Silvertown Quays in Newham, Lendlease's long-delayed regeneration project finally broke ground in May 2026 after a planning revision slashed the height of three towers by eight storeys each — a concession to community groups and Transport for London concerns about wind tunnelling near the Crossrail Silvertown Tunnel entrance. The revised masterplan now covers 6,800 homes across 62 acres, with 35 percent earmarked as affordable under the GLA's Affordable Homes Programme. Local councillors have pushed for that figure to reach 40 percent; negotiations are ongoing.

Further west, the Old Oak and Park Royal Development Corporation is pressing ahead with what it bills as Europe's largest regeneration zone. The area around Old Oak Common station — the future interchange between HS2 and the Elizabeth Line — is expected to accommodate 25,500 new homes and 65,000 jobs over the next 20 years. Phase one planning, covering the land immediately south of Coronation Road in North Acton, was approved by the OPDC in June. Prices for off-plan one-bedroom flats in the surrounding streets are already registering between £450,000 and £510,000, according to figures from Savills' June 2026 market report — a 12 percent uplift on 2023 values for the same postcode.

Neither project is without friction. Residents near Scrubs Lane in Hammersmith and Fulham have raised persistent concerns about construction lorry routes and the adequacy of GP and school provision. The NHS North West London integrated care board has flagged that two of its local health centres are already operating above recommended patient-to-doctor ratios, warning that significant population growth without matched infrastructure funding will cause measurable strain by 2028.

What the Numbers Mean on the Ground

Zones 4 to 6 are telling a different story — arguably a more interesting one for buyers priced out of inner London. In Woolwich, where Berkeley Group's Woolwich Exchange scheme delivered its first 420 units in March 2026, average sale prices have settled around £385,000 for a two-bedroom flat. That's well below the borough average but already £30,000 higher than equivalent stock registered in the same postcode in January 2024. Estate agents along Powis Street report that around 60 percent of buyers are first-time purchasers using the government's Mortgage Guarantee Scheme, suggesting the demographic draw is real — even if the infrastructure pressure is equally real.

The buy-to-let market is returning to both zones. Gross rental yields in Woolwich are running at roughly 5.2 percent annually, which, after last year's stamp duty reform reduced the surcharge on second properties from 5 percent to 3 percent, makes the arithmetic work again for smaller landlords.

For anyone making decisions in the next six to twelve months, the calculus is fairly direct. Properties within 800 metres of a confirmed HS2 or Elizabeth Line station — Old Oak Common above all — carry speculative upside but also construction disruption that will persist well into the 2030s. The Silvertown and Woolwich schemes offer earlier occupancy and firmer affordable housing guarantees, but buyers should scrutinise Section 106 agreements carefully before committing, particularly provisions around service charges, which on large mixed-tenure estates can escalate sharply once developer management contracts expire after year five.