St. Louis bets on conversions and innovation zones for its downtown: the test London has already run

St. Louis is making its urban core the priority, betting on office-to-residential conversions, innovation zones and private-sector partnerships to cut vacancies and blight and to improve public safety, according to a Smart Cities Dive report published on 30 October 2026.

Nothing in that sentence changes a London planning decision. The reason the item belongs on this desk is narrower. The three instruments St. Louis is reported to be reaching for are the same ones London has run at scale for more than a decade: permitted development conversions since 2013, and Olympic-anchored regeneration in east London since 2012. The London record carries both the argument for those tools and the cautions that come with them, and that is what is worth extracting.

What the report says, and what it leaves open

Only the headline and summary of the Smart Cities Dive article were available when this draft was prepared; the page itself returned no readable text. That limits what can be stated with confidence. The material does not give vacancy rates for downtown St. Louis, does not name a conversion scheme, does not identify a developer or institutional partner, does not put a figure on public money, and does not record a vote by the city’s elected board or any other municipal body.

What it does say is directional: the urban core is being treated as the priority, and the methods named are conversions of empty offices, designated innovation zones, and partnerships with the private sector, with blight reduction and public safety offered as the intended outcomes. Those are stated aims, not measured results. Any reader comparing the two cities should hold that distinction.

The Olympic framing needs checking

The headline ties the strategy to the 2028 Games. The 2028 summer Games belong to Los Angeles; St. Louis is not the host city. Whether St. Louis has any venue, training-base or fan-zone role in the 2028 cycle is not established in the material available here, and LA28’s published venue list is the place to confirm it rather than assume it.

That distinction carries weight. A city spending against a hosting obligation is in a different position from one borrowing the vocabulary of a Games it is not hosting. In London, the 2012 anchor came with land, transport investment and a statutory delivery body attached. An Olympic reference without those attachments is a marketing frame, not a funding stream.

Key facts

London’s conversion record is the real comparison

Office-to-residential conversion without a full planning application has been possible in England since 2013, first under Class O of the permitted development order and, since August 2021, under Class MA, which widened the right to a broader set of commercial and business premises. Class MA carries a 1,500 square metre floorspace limit, requires the building to have been vacant for at least three months, and, unlike the earlier route, requires the nationally described space standard to be met and adequate natural light in habitable rooms.

What it does not require is the full set of tests a planning application would attract. Councils consider a short list of prior approval matters, including transport and highway impacts, contamination, flood risk and noise, rather than design quality, affordable housing or the section 106 package a conventional scheme would carry. Several London boroughs have responded with Article 4 directions withdrawing the right in employment areas they want to keep in commercial use.

That is the first lesson to draw from the St. Louis summary. Conversions are the cheapest and fastest lever available to a city with empty offices, and they are also the one that most reliably produces small units with weak daylight and no affordable housing contribution. The criticisms have been made consistently by built-environment bodies including RIBA and the TCPA, and in London Assembly scrutiny. A city adopting the lever can design around those problems, but only if it sets the terms before the first prior approval is granted rather than after.

Innovation zones and partnerships already have London equivalents

Innovation zones have a London analogue in the clusters built around universities and research institutions: the Knowledge Quarter at King’s Cross, White City, and East Bank at Stratford Waterfront, where UCL East, the BBC’s music studios, V&A East and Sadler’s Wells East have been opening in phases. The London Plan’s affordable workspace policy, and borough local plan policies requiring affordable workspace in designated locations, are how the planning system tries to stop those clusters becoming purely market-rent floorspace.

The partnership model is where the two cities diverge most sharply. London’s Olympic regeneration rested on public land assembled and controlled by a mayoral development corporation with planning powers, and it has taken well over a decade to deliver. St. Louis is described as leaning on private-sector partnerships. Public land ownership gives a city leverage over tenure mix, affordable housing and design quality that an incentive-and-partnership model does not. Anyone comparing the two should compare who owns the land before comparing the plans.

On stage, the reported St. Louis activity is a city strategy, not an approval, and no London decision is engaged by it. For London readers looking for the live equivalent, the relevant moments are prior approval decisions on Class MA applications, Article 4 directions, and borough local plan examinations.

What to check next

For anyone following the London side of this comparison:

• Your borough’s Article 4 directions and the prior approval decisions issued under Class MA, both published on council planning portals.
• The Planning Data platform, which carries Article 4 direction and conservation area datasets showing where the conversion right has been withdrawn.
• London Datastore and ONS releases on office floorspace, vacancy and housing delivery, if you want to test the claim that conversions are absorbing genuinely surplus offices rather than displacing viable business space.
• The London Plan’s affordable workspace policy and your borough’s local plan policies on workspace and tenure mix.
• For the Olympic Park, which authority currently determines applications on a given site: planning responsibility there has been changing hands, so the answer is not always the one in older documents.

On the St. Louis side, the checks are the city’s own downtown plan, any development agreement or tax-abatement application, and LA28’s published venue list, before treating the Olympic connection as established fact.

Source: Smart Cities Dive, “How the 2028 Olympics are shaping downtown revitalization — in St. Louis”, https://www.smartcitiesdive.com/news/2028-olympics-shaping-downtown-revitalization-st-louis/873312/