In 2013 a planning change let developers turn offices into homes without full planning permission — and a new kind of business followed it. Permitted development created a wave of conversions and the companies that do them. It is a clear case of regulation spawning company activity, and GalimAI maps the vehicles behind it.
What GalimAI’s own data reveals
A conversion is a company activity, and GalimAI maps the companies. Among the 463,022 property-owning companies we hold are the developers and special-purpose vehicles that bought offices and commercial units to convert under permitted development — many of them newer formations, often geared and carrying bridging finance for the works.
That makes the conversion market both an opportunity and a risk map. Stalled or over-leveraged conversion vehicles show up in our distress signals and dissolution data — the owners most likely to release a part-finished or fully-converted asset.
What changed: permitted development, in plain terms
Since May 2013 it has been possible, under permitted development rights, to convert an office (use class) into homes without applying for full planning permission — only a lighter-touch ‘prior approval’. The right was later extended to other commercial and retail uses.
The volume has been substantial. More than 119,000 homes have been created through permitted development since 2013, with 102,830 delivered through change-of-use rights between 2015/16 and 2022/23 — 89% of them from converting offices and other commercial, business and retail premises.
The public backdrop
| Indicator | Figure | Note |
|---|---|---|
| Introduced | May 2013 | Office-to-resi without full planning |
| Homes via PD since 2013 | 119,000+ | Change-of-use conversions |
| 2015/16-2022/23 | 102,830 homes | Through change-of-use PD rights |
| From offices/commercial | 89% | Most conversions are commercial-to-resi |
A planning shortcut built an industry. GalimAI’s map is where the conversion companies — and the financing strain some carry — are visible.
The most plausible mechanism
The channel is lowered friction and cost. Removing the need for full planning permission cut the time, cost and uncertainty of converting commercial buildings to homes, which made conversion a viable business and drew new developers and SPVs into it. The 119,000-plus homes are the measurable output. We read permitted development as the clear enabler of the conversion wave, while noting that demand for homes and the relative value of offices versus flats also drove it.
Sources
The proprietary figures in this study (the 463,022 companies, 1,000,000+ owners and the distress signals) are GalimAI first-party data. The public background figures are drawn from:
- Over 119,000 homes created through permitted development - openDemocracy
- Planning in England: permitted development and change of use - House of Commons Library
Frequently asked questions
What is office-to-residential permitted development?
Since May 2013, permitted development rights have allowed offices to be converted into homes without full planning permission - only a lighter prior-approval process. The right was later extended to other commercial and retail uses.
How many homes has it created?
More than 119,000 homes have been created through permitted development since 2013, with 102,830 delivered through change-of-use rights between 2015/16 and 2022/23 - 89% of them from converting offices and other commercial premises.
What does GalimAI's data show?
GalimAI maps 463,022 property-owning companies, including the conversion developers and SPVs that buy commercial buildings to convert - many newer, geared and carrying bridging finance, with their distress signals visible.
How can investors use this?
Stalled or over-leveraged conversion vehicles surface in GalimAI's distress and dissolution data - the owners most likely to release a part-finished or completed asset.