/Companies

Buildwithtract

Defunct

London, GB · Founded 2023 · 3 known investors

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Tract was a UK startup that built AI-powered software for the property planning sector, including tools to draft planning documents (Tract Editor), source development sites (Scout, Tract Source), and appraise land for landowners (Attract). Aimed at British developers, planning consultants, and landowners, the company ceased operations in March 2025 after failing to find a venture-scale business model.

Also known as Build with Tract · Tract

Founders & leadership

Buildwithtract was founded in 2023 by Jamie Rumbelow and Henry Dashwood.

JRJamie Rumbelow
Jamie RumbelowCo-founderJamie Rumbelow is an engineer on the Wallet Squad at Tools for Humanity, having previously co-founded Tract and served as its CEO from 2023 to 2025. His earlier work includes managing director of Little Delimited Ltd, product engineer at Fei Labs, founding engineer at Pactio, software engineer at F-LEX, and lead engineer at Overwatch Research, along with a cohort placement at Entrepreneur First.
HD
Henry DashwoodCo-founder

Investors · 3

Company profile

researched Aug 2026

Tract (buildwithtract.com) was a London-based venture-backed startup that operated between May 2023 and March 2025, attempting to address Britain's housing shortage by improving the planning permission process. Its thesis was that housing in Britain is expensive because of artificial supply constraints, principally the difficulty of obtaining planning permission, and that helping more sites secure permission would allow the company to capture part of the resulting land-value uplift.

Over its lifetime the company tested several business models: Tract Source, a site-sourcing tool for developers; Attract, a free land-appraisal tool for landowners; becoming a tech-enabled land promoter itself; and finally Tract Editor, an AI-powered platform to assist with drafting planning documents. It also built a tool called Scout. The company reported significant technical progress and a well-received editor product, but never reached revenue or committed paying customers, and wound up in March 2025, returning capital to investors and publishing a detailed postmortem in April 2025.

Founding story

Tract was founded in May 2023 with the stated intent of building software to fix Britain's housing crisis. The founders, Jamie Rumbelow and Henry Dashwood, described being motivated by a combination of moral outrage at bureaucratic constraints on housebuilding and technological optimism, citing the argument set out in "The Housing Theory of Everything" by Myers, Bowman and Southwood.

Business model

Tract sought to monetise improvements to the planning permission process, either by selling software to property-sector participants (developers, planning professionals, landowners) or by acting as a tech-enabled land promoter and capturing part of the value uplift created when planning permission is granted. The company reported that it never secured revenue or committed paying customers, and identified low willingness to pay for its tools as a key obstacle.

Intended revenue came from software sales into the British property market and, in one iteration, from participating directly in land promotion economics and the planning-permission value uplift. No revenue was realised.

Traction

The company reported building good technology and solid products, including the well-received Tract Editor and Scout, which it described as having had success it failed to capitalise on. It raised a £744,000 pre-seed round in April 2024, but reached March 2025 after nearly two years with neither revenue nor committed paying customers.

Latest developments

Operations ceased in March 2025 and capital was returned to investors. In April 2025 the founders published a postmortem on the company website setting out the mission, product history, mistakes and lessons learned; both founders stated they were interested in new projects.

▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Tract targeted a British planning and land market that it initially assessed as large (billions in Britain alone), politically favourable and underserved by modern software. In its postmortem the company concluded it had overestimated the British market's size and receptiveness, and that the sector's conservatism and fragmentation limited its potential for venture-backed disruption.

Tract positioned itself as applying modern software and AI to a planning permission process it viewed as slow, costly and served by few modern software solutions, including automating the drafting of planning documents through Tract Editor.

Technology

Tract built software products for the planning process, including Scout and Tract Editor, an AI-powered platform to assist with drafting planning documents. The company also built Tract Source for site sourcing and Attract for land appraisal, and characterised its technology and products as solid, noting in hindsight that it had focused too much on technology relative to business development.

Go-to-market

The company sold software into the British property sector and, in one model, engaged directly as a land promoter. Its retrospective identified go-to-market shortcomings including insufficient commercial focus from the outset, not consulting land agents early enough, failing to capitalise on the traction achieved by Scout, and not prioritising a route to revenue.

British property-market participants, including residential developers seeking development sites, planning professionals drafting planning documents, landowners assessing land value, and land agents.

Geography

Operations and market focus were in Britain, with the founders based in London. In its advice to other founders, the company recommended targeting the US as a larger, higher-quality market with a better ecosystem for building companies.

History

Founded in May 2023, Tract raised a £744,000 pre-seed round in April 2024. It iterated through several models — Tract Source (site sourcing for developers), Attract (free land appraisal for landowners), direct tech-enabled land promotion, and Tract Editor (AI-assisted drafting of planning documents) — and pivoted its strategy in December after concluding the prior approach was not working. Having gone nearly two years without revenue or committed paying customers, the founders decided in March 2025 to cease operations and return capital to investors, publishing a postmortem in April 2025.

Risks & controversies

The postmortem attributes the company's failure to a combination of factors: difficulty selling software into a conservative sector, low customer willingness to pay, the operational complexity and long timelines of land promotion, market fragmentation, overestimation of the British market's size and receptiveness, raising venture capital for a model that may have suited different funding, building out the team too early, spending time and money on non-essentials, and insufficient focus on reaching revenue.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 5

launches, deals, and filings
Apr 2025
Publication of the Tract postmortem

Jamie Rumbelow and Henry Dashwood published a long-form postmortem in April 2025 in London, documenting the company's mission, product pivots, mistakes and lessons for founders.

source ↗

Mar 2025
Tract ceases operations and returns capital to investors

After nearly two years without revenue or committed paying customers, the founders concluded there was no clear path to venture scale and decided to wind up operations and return capital to investors.

source ↗

Dec 2024
Strategy pivot

In December the founders pivoted the company's strategy after concluding the existing approach was not working; the final product direction was an AI-assisted platform for drafting planning documents (Tract Editor).

source ↗

Apr 2024
Tract raises £744,000 pre-seed round

Tract raised a £744,000 pre-seed round in April 2024, according to the company's own postmortem document.

source ↗

May 2023
Tract founded to build software for Britain's planning system

Tract was founded in May 2023 to build software aimed at improving the planning permission process and addressing Britain's housing shortage.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

▸Research sources · 1

primary sources listed

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Buildwithtract do?
Tract was a London startup building software for Britain's planning permission process; it ceased operations in March 2025.
Who founded Buildwithtract?
Buildwithtract was founded by Jamie Rumbelow, Henry Dashwood in 2023.
Who are Buildwithtract's investors?
Buildwithtract's investors include Rabo Corporate Venturing, RedBird Capital Partners, Ada Ventures.
Where is Buildwithtract headquartered?
Buildwithtract is headquartered in London, GB.