Self Storage Software for UK Facilities
Rent collection, online bookings, leases and a tenant portal in one cloud system — and you only pay for units that are let.

Unit Manager Pro is self storage software for independent UK operators. It charges your tenants on the due date, chases late payers, applies rent increases on schedule, takes bookings from your website and gives every tenant their own portal — so the facility keeps running when you are not in the office.
What the software does each month
- Collects rent automatically. Tenants pay by Direct Debit or saved card on the due date. If a Direct Debit fails, the saved card is tried so the rent still clears, and you and the tenant are both told.
- Chases arrears for you. Reminders go out before the due date, invoices on creation, and overdue notices on a schedule you set. Late fees can be added after a grace period, flat or as a percentage.
- Puts prices up on time. Schedule a rate change per unit or across the whole facility. On the effective date it applies to the unit and every active lease, and the tenant is notified.
- Takes bookings while you sleep. Customers see live availability, reserve a unit, sign the agreement and set up payment online.
- Lets tenants serve themselves. Each tenant can view their lease, pay invoices, raise maintenance requests and upload documents.
Storage unit management software built around the unit, not the spreadsheet
Every unit has its size, price and status. Every tenant record holds their leases, payment history, documents and messages. When a lease is signed the unit is marked let; when it ends the unit is free to rent again. You can see occupancy and revenue on the analytics dashboard without building a report.
It is cloud based, so it runs in a browser on a laptop, tablet or phone, with nothing to install or back up yourself. See cloud vs desktop self storage software if you are moving from an older desktop system.
Pricing that follows your occupancy
You can add every unit you have at no cost. You are only charged for units with an active lease: £1.25 per leased unit a month on Pay As You Grow (up to 20 units), or 1% of collected rent, capped at £2.50 per unit a month, on Growth for larger sites. There are no required setup fees or long contracts. Card and Direct Debit processing fees are paid to those providers at their own rates.
The full breakdown, with worked examples, is on the self storage software pricing page.
Who it suits
Independent and single-site operators
If you run the facility yourself, or with a small team, the point is to stop chasing payments and updating spreadsheets. Our guide to software for small facilities covers what matters at that size.
Unmanned and remote sites
Online booking, automatic payments and tenant self-service let a site run without someone on the counter. Read how to run an unmanned self storage facility.
Operators switching systems
You can export your data at any time, and existing customers can be moved across with a migration invite that explains the switch. If you would rather not load the data yourself, our optional £99 setup service does it for you and the £99 is credited to your first invoice.
Comparing options?
Try the self storage software free for 14 days
Start your 14-day free trial — no card required. Or book a 15-minute demo with our team.
Frequently asked questions
What is self storage software?
It is the system a storage facility uses to manage units, tenants, leases and rent. Modern self storage software also collects payments automatically, takes online bookings and gives tenants a self-service portal.
How much does Unit Manager Pro cost?
Empty units are free. Leased units cost £1.25 a month each on Pay As You Grow (up to 20 units), or 1% of collected rent capped at £2.50 per unit a month on Growth. There is a 14-day free trial with no card required.
Is it cloud based?
Yes. It runs in your browser on any device, with encryption, daily backups and a 99.9% uptime target. There is nothing to install.
Does it work with my gate or access control system?
Each tenant's access status (active, overlocked or suspended) is available by webhook and API so controllers such as PTI, OpenTech and Nokē can sync. Native integrations are on the roadmap.
Can I export my data if I leave?
Yes. Tenants, leases, payments, invoices and documents can be exported to CSV or JSON at any time from Settings, with no offboarding fee.
Related features
Self Storage Software Pricing
You pay for units that are let, not for units sitting empty. Here is exactly how the price works.
Read the feature overview
Self Storage Website Builder
A storage website with live availability and online booking, built from your unit list and included in every plan.
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Self Storage Booking Software
Take online bookings around the clock with real-time unit availability and instant digital move-ins.
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Self Storage Billing Software
Automated invoicing, recurring payments and intelligent retries — so you stop chasing rent and start getting paid on time.
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