Big plans?
Do your level best.

Describe the job below. It asks what a professional would, then drafts the budget and schedule you run it from.

Free for one project
New project

Messy is fine: your own words get their own questions. Sent to our AI to draft the plan and not stored. What happens to it.

Drafted live, on current UK rates. Prices are guides, not quotes.
Already mid-build? It reads the quote you've been sent and tells you what's missing.
Every price here is drawn on current UK guides, then corrected by the real quotes members record.
Built by a homeowner mid-renovation, not a software company guessing at one.
1
Describe it

The patio, the loft, the whole house. Messy is fine, and paperwork works too.

2
Answer a few questions

Access, consents, lead times. Better now than in month three.

3
Run the job from the plan

Budget, schedule, quotes read, rated trades found.

It runs the job, not just the sums.

The plan is only the start. It follows the shape of a real project: rough numbers first, then quotes, then the work, then signing off. It keeps the money straight the whole way through.

Level Best budget: cost lines grouped by category, each with a best case, a worst case and the agreed price once a quote is accepted.

Budgets with honest brackets

Best and worst on every line, because single-number budgets are fiction. A ceiling warns you before you cross it.

Level Best plan: project stages drawn on a timeline, with the tasks for the current stage listed underneath and their due dates.

Dates you can hold a builder to

Stages on a timeline, tasks inside each, and rated local trades found for the quotes. Nothing goes in until you approve it.

Watch a real one drafted.

A real project, start to plan, in about two minutes. Nothing sped up but the waiting.

Click to enlarge

Extensions, loft and garage conversions, kitchens and bathrooms, gardens and landscaping, self-builds, outbuildings, patios and driveways.

"

I research every project to death, mostly with AI these days. Then it has to become real: lists, quotes, emails, a spreadsheet. That's where it fell apart for me, most memorably when a water pipe job I felt organised about landed a VAT bill I hadn't budgeted, stated plainly in the emails all along. I built Level Best so the thinking and the running of the job live in one place. I'm not a builder, and it doesn't replace one. It just means you turn up to that conversation knowing what you're talking about.

Read the full story →

: Rich, Sevenoaks, Kent

"Couldn't I just ask ChatGPT?"

You could. Plenty of people already do. Here's what happens next.

A chatbot on its own

Great answers, if you know what to ask. On a job you're doing for the first time, you don't know what you don't know.

And it forgets your numbers as soon as the conversation moves on. Three weeks in, your plan is forty screenshots and a total you can't find.

The same AI, with somewhere to put the answers

Level Best asks the questions first, the ones you didn't know to ask. Every answer becomes a budget line, a task or a date, not another screen of chat.

And where there is a real answer, it looks it up rather than guessing: it reads the public planning registers for your postcode, shows you the entry, and says plainly when a register could not be reached.

A chatbot gives advice. This one keeps the plan.

Start free
Your first plan is drafted free. No card.

Free for one project. £7 for all of yours. £29 to run them for clients.

The free one is a real tool, not a demo: one project, every feature, the assistant included. £7 lifts the one-project limit and the assistant's meter, at the founding rate. Professional is for the people who manage builds for clients: their branding, their letterhead, a team, and every client watching their own live plan.

Free

Free: one project, every core tool
£0 forever
No card, no trial clock, no nagging
  • One full AI-drafted plan, priced against today's guides, before you've paid a penny
  • Budget with best & worst brackets, plan, schedule, cashflow
  • Trade pipeline, materials list, decision log
  • A monthly allowance of assistant actions for chat, price checks and quote reading
  • Your site checked against the public planning registers, and what your neighbours got permission for
  • 10 attachments for quotes and receipts
  • Full export any time, in open formats
  • One project at a time
Start free
No card, no trial clock. Move up whenever it stops being enough.
New

Professional

For project managers, architects and cost consultants running client work
£29/month
Founding professional rate
  • Everything in Founding Member, on every client project, plus:
  • Each client follows their own live plan: they see what you choose, comment in place, change nothing
  • Your name and logo on what clients see, and on the emails they get
  • Client-ready reports, issued under your letterhead
  • 3 team seats, each viewer or editor: colleagues see every project, clients only theirs
  • Monthly invoice to your accounts, already paid
  • 20GB for drawings, quotes and photos, up from 5GB
  • A direct line to us
Start Professional
By card, cancel any time. The business terms cover invoiced accounts and seats.

Same tool underneath, whichever column. Every plan is EU-hosted and encrypted, backups and security are handled for you, your data is never sold and carries no adverts, and the full export works on all of them.

Reasonable questions

What does free actually include?

The whole tool, for one project: budget with honest brackets, plan and schedule, cashflow, the trade pipeline, materials and the decision log, plus one full run of the kick-off wizard, so the AI drafts your first plan before you've paid a penny. After that you get 20 assistant actions a month, enough to chat to your project, have a quote read or a price checked when it matters, and notice what you'd use if it weren't metered. The £7 removes the meter. No trial clock, and free stays free.

Can you see my numbers?

Your project is encrypted, EU-hosted, and readable by your account and by nobody else unless you say so. Never sold, never used for adverts, deleted when you say so. There are two ways it reaches anyone else, and you control both. You can invite someone to look at a project, choosing which parts they see and whether costs are included; they can comment but cannot change anything, and removing them cuts off their access there and then. And you can share what a job actually cost, anonymously, so everyone's estimates get better: the type of job, its size, the region and the rate, never your name, address or project. Both are off until you switch them on.

Is the AI actually any good?

It's a well-briefed assistant, not an oracle. It prices jobs for your area within sensible brackets, spots what a quote suspiciously fails to mention, and turns "sort out the bathroom" into a task list. You stay the project manager; it just makes you a faster, better-informed one. Nothing it says replaces a structural engineer, and it will tell you so itself. Read the AI disclaimer

What else does it do?

The four above are the spine. Around them it tracks when money actually leaves your account month by month, keeps a materials list down to the fixings with order-by dates, chases whatever is slipping, logs every decision and why it was made, and turns the whole lot into a report you can hand to a builder, a partner or a lender.

Can someone else follow my project?

Yes, and it just landed. Invite your partner, your builder or your project manager by email; you choose which screens they see and whether costs are included. They can comment on any line, and the conversation stays attached to the thing it is about. They cannot change anything, and removing them ends their access immediately. Sharing is part of the £7 plan.

What are you building next?

It is early, and the roadmap is open rather than a secret. The near list: a cost picture built from what projects really cost rather than published guides, which owners can contribute to anonymously if they want to. Professional, for people running client work, is live: branding, letterhead reports, team seats and monthly invoicing. So is the document check: show it the quote or proposal you have been sent, and get a reading of it before you sign. Further out, help with picking suppliers and getting a budget back down to the number you first had in mind. The fuller list is here, and if what you need is not on it, say so: at this size, one email genuinely moves it.

Why not just use a spreadsheet?

We did. It was going fine until the second structural surprise, the fourth revised quote and the schedule slipping into a second year. A spreadsheet records a renovation; it doesn't run one. If yours is coping, honestly, keep it. Ours is exported to CSV whenever you fancy comparing notes.

More questions answered →

About the AI. The assistant is a planning aid, not a professional opinion, and like any AI it can be wrong. What that means in full.