New · Built in the UK for hybrid developer-landlords

Run your builds and your lets from one workspace.

Build & Let is the single workspace for UK developer-landlords. Track tasks, snags & costs across your refurbs, and tenants, rent & certificates across your portfolio, with an AI assistant that actually does the work, not just summarises it.

Cancel anytime before day 14, no charge until then
buildandlet.com/carter-build
Build & Let project dashboard showing budget, rent due and open snags
Build & Let running on an iPhone
The problem

You’re running a property business across four apps that don’t talk to each other.

Most UK developer-landlords are duct-taping software together. Builds live in one tool, lets in another, money in a third, and the team in WhatsApp. The cracks cost you time, margin, and sleep.

Build & Let

All four, replaced. One workspace.

Projects, properties, team, photos and money, under one URL, one login, one bill. Plus an AI that does the work you’d otherwise put off until Sunday.

Trello + Excel + WhatsApp + Photos
one Build & Let workspace
Hover a problem on the left to see how Build & Let solves it
buildandlet.com/carter-build
The rest of the toolkit

And the bits that usually fall through the cracks.

The admin that lives in inboxes, glove boxes and the back of your head, given a proper home inside every project and property.

Documents

Contracts, certificates and warranties filed against the right project or property. Searchable, timestamped, off your desktop.

Site diary

A dated log of each day on site: weather, deliveries, who showed up, what got done. The record you’ll want if a job’s ever disputed.

Contacts

Your trades and suppliers in one address book, linked to the projects they’re on, not scattered across phones and text threads.

Rent reminders

A notification the day rent’s due: “Flat 3’s rent is due today.” See what’s owed and what’s late at a glance, without digging through a spreadsheet.

New · Automatic

What’s due today, before your first coffee.

Every morning at 8am, Build & Let checks your whole portfolio and posts a reminder to the notification bell in the app — one per property that’s due today, with the tenant and the amount. A heads up you glance at, not a task to action.

  • Runs automatically at 8am, every day — nothing to set up or remember
  • One reminder per property due today — tenant, address and amount, in your notification bell
  • Tap any reminder to jump to that property, or open the rent due page to see them all
  • Only notifies on days something’s actually due — quiet otherwise
Scheduled daily · 8:00am · every plan
Build & LetSearch⌘K3HA
Notifications3 new
Today · 8:00am
£Flat 3, Hartwell Ct8:00amSarah Okafor · £820 due today
£17 Mill Lane8:00amTom Reeves · £600 due today
£Flat 1, Acacia Rd8:00amDaniel Mensah · £720 due today
View all rent due
The differentiator

The AI doesn’t summarise. It does the work.

28 tools, wired into your projects and portfolio. Ask it like you’d text your foreman. It logs costs, adds snags, sets tenants, finds the rent that’s due, schedules planner events. Real changes, and the ones that touch your data wait for your confirm before they save.

Log £450 of labour against the Acacia Road refurb, dated yesterday.
YO
Cost added
£450 · Labour · 12 Acacia Road · 27 May
Confirm to save · category: Labour →
Who’s got rent due this week?
YO
Rent due · this week
Flat 3, Hartwell Ct · £820 · due 5th
17 Mill Ln · £600 · due 7th
3 properties · Open portfolio →
Add a snag at Maple Drive: cracked tile in the bathroom, low priority.
YO
Snag added
Cracked tile · Bathroom · Maple Drive · Low priority
Confirm to save · unassigned →
Where’s the Mill Lane kitchen reno up to?
YO
Project stats
Spent £18,400 · 4 tasks open · 2 snags (1 high)
Open project →
Book a worktop delivery at Acacia Road for next Tuesday.
YO
Event scheduled · 3 Jun
Worktop delivery · 3 Jun · 12 Acacia Road
Type: Delivery · Edit on planner →
End the tenancy at 22 Mill Lane: tenant moves out 31 May, full deposit back.
YO
End tenancy
22 Mill Lane · move-out 31 May · £1,200 deposit returned
Needs confirmation · Review →
Roles & permissions

Everyone sees their part, and nothing else.

Build your own roles and scope each one three ways: which projects, which properties, and which sections. The trade on site sees snags; the surveyor sees paperwork; your bookkeeper sees the numbers, and none of them see the rest.

1 Scope by project · all, or a chosen few2 Scope by property · keep the portfolio private3 Scope by section · tasks, snags, costs…
Site managerAssigned builds

Runs the day-to-day on the sites you put them on, with the full build toolkit but none of your portfolio or billing.

Tasks Snagging Costs Photos Diary Portfolio Billing
Contractor / trade1 project

Just the job they’re on. The plumber raises and closes snags from their phone, and sees nothing about your money.

Tasks Snagging Costs Documents Portfolio
Surveyor / inspectorRead-only

Sign-off access to plans, paperwork and the site diary; they can read everything they need and change nothing.

Planner Documents Diary Costs Billing
Letting managerPortfolio only

Looks after your rentals (tenants, rent and certificates) without ever touching a live build site.

Portfolio Contacts Documents Builds Billing
BookkeeperCosts + billing

The numbers and the invoices across your projects, and nothing about tenants, trades or what’s on site.

Costs Billing Documents Snagging Tenants
Owner / adminEverything

Full run of every project and property, and the only role that can add people, build roles and handle billing.

All builds Portfolio Billing Team & roles
Make it yours

Your logo. Your colour. Their workspace.

Workspace branding is on every plan, not a bolt-on. Pick a colour, drop your logo, and your whole team sees it across the app.

  • Pick from a curated palette or drop in any HEX
  • Upload your logo: it shows in the sidebar and headers across the app
  • Looks right in both light and dark mode
  • Running multiple Ltds? Each workspace gets its own brand
Try it: pick a colour
Current: #F0A010
buildandlet.com/your-company
Tuesday morning
Good morning, Hasan
Budget left
£42,200
Rent due
£8,640
Snags open
6
68% of project budget used
AI
Logged £450 plumber callout against Acacia Road.
Just now · undo · view
New · White-label

Run it on your own domain.

Put the whole app on app.yourcompany.co.uk instead of a Build & Let URL. Your team and clients see your brand on a web address that’s yours, not ours.

  • Your own web address, so it looks like software you built
  • HTTPS certificate issued and renewed automatically, nothing to maintain
  • Plain-English setup: we hand you the two DNS records and check them for you
  • Your buildandlet.com address always works as a fallback
Optional add-on · £10/mo or £100/yr
app.carterbuild.co.uk Live
buildandlet.com/carter-build
app.carterbuild.co.uk
Records
DNS
Secured
4Live
Live and secured. Valid HTTPS certificate that renews itself. You don’t need to touch DNS again.
Getting started

Three steps. You’re in by lunchtime.

Most owners are up and useful inside thirty minutes: add your projects and properties, invite the team, then let the AI handle the day-to-day admin.

1
≈ 2 min

Add your projects & properties

Type them straight in: name, budget, address. Add as many projects and properties as your plan allows, and your dashboard fills in as you go.

new project
Name12 Acacia Road · refurb
Budget£245,000
TypeRefurb
+ Add & continue
Result
3 active projects loaded 12 properties imported Dashboard ready
2
≈ 3 min

Invite your team

Add your foreman, your accountant, your QS. Share a set-password link directly: no email back-and-forth, no SaaS dance. Roles control what they see.

team
MCMike CarterAdmin
PSPriya SharmaMember
TGTom GreavesBilling
JKJess KowalskiPending link
Result
4 team-mates added Set-password links to share Roles wired up
3
Ongoing

Ask the AI to do anything

“Log this cost.” “Who’s late on rent?” “Add that snag.” It does the actual work: creates the record, sends the alert, books the event. You confirm, it’s done.

ask · live
Log £450 plumber against Acacia.
→ Cost logged £450 · Labour · 12 Acacia Road
Who’s behind on rent?
→ 2 overdue £1,420 across 2 tenants
Last 30 days
187 costs logged via AI 12 snags closed by command 6 EPC renewals scheduled
Pricing

Every feature on every plan. Pick by size.

14-day free trial. No charge until day 15. Cancel anytime. Tiers differ on seats, properties, AI quota and storage. That’s it.

Solo
£39/ month
£390 billed annually · saves 17%
For independent landlords and sole-trader builders running it all themselves.
  • 1 seat
  • 3 active projects
  • 10 properties
  • 50 AI messages / month
  • 5 GB storage
  • Email support · 48h
Business
£299/ month
£2,990 billed annually · saves 17%
For multi-site builders and growing portfolios. Unlimited properties, biggest AI quota.
  • 15 seats
  • Unlimited projects
  • Unlimited properties
  • 2,500 AI messages / month
  • 250 GB storage
  • Email + chat · 4h
Card up-front, charged day 15 Cancel anytime in trial, no charge UK VAT included Stripe-secured payments
Questions, answered

Probably what you’re wondering.

Still got something? Email hello@buildandlet.com. Real humans, UK working hours.

For most people: their project board (Trello / whiteboard), rent spreadsheet, photo dumps, and a chunk of WhatsApp chatter. You’ll still want your accounting software for the actual books; Build & Let doesn’t do payroll or tax filing.
Yes. The card sits on Stripe (we never see the number) and isn’t charged until day 15. Cancel anytime before then and you pay nothing. We do this so you don’t get to day 15 with a half-set-up workspace and a surprise bill.
Yes. One click in Billing, or via the Stripe portal. During trial = no charge. After = you keep the current billing period and stop renewing. Your data stays exportable for 30 days.
One message = one thing you ask. The AI’s response (and any actions it takes, like adding a cost or scheduling an event) counts as part of that one message. If you run out mid-month, upgrade your plan for a bigger monthly allowance.
Yes, that’s the point. 28 tools wired to your projects and portfolio. It reads anything you ask; and for the actions that change your data, like logging a cost, adding a snag, ending a tenancy or editing a project, it shows you exactly what it’ll do and waits for your confirm before it saves. Every change is logged with who and when.
Hosted in UK + EU data centres. Encrypted at rest and in transit. We don’t sell your data, ever. You can export everything (CSV + photos) any time. It’s yours, not ours.
In Workspace → Team. Add their name + email, pick a role (Owner / Admin / Member / Billing), and we generate a one-time set-password link to share with them directly. No email back-and-forth.
iOS 15+ and Android 10+. Build & Let’s a PWA: install it from the browser and it lives on your home screen, just like an app. No App Store wait, no updates that break things.

Stop juggling. Start running.

14-day free trial. Card up-front, nothing charged until day 15. Cancel anytime, no questions.

UK-built, UK-hosted Stripe-secured payments Cancel anytime in trial