The verdict in three sentences
For a London landlord running several shopping centres and more than 150 leases, spreadsheets become a legal risk the moment a tenant challenges a service charge reconciliation. An off-the-shelf property platform costs £50,000 to £150,000 to implement plus annual licences, while a custom build sits between £70,000 and £160,000 with no per-unit fee. The right choice depends mostly on how much turnover rent you collect and whether you need footfall analytics, two areas standard packages often handle poorly.
What the software must cover for a shopping centre
A shopping centre is not an office building. Leases combine a base rent, a turnover top-up based on the tenant's sales, service charges apportioned by floor area or weighted area, and a marketing contribution. In the UK, the RICS Professional Statement on service charges in commercial property expects transparent budgets, year-end certificates issued within six months of the year end, and no recovery of improvement costs disguised as repairs. Rent reviews are usually upward-only, linked to open market value or to RPI or CPI with a collar and cap.
The asset manager therefore needs a tool that connects four flows: rent demands, reviews, service charge reconciliation and operating data (footfall and tenant sales). Combining them gives the occupancy cost ratio for each tenant, the key indicator to anticipate arrears and prepare lease renewals.
| Module | Concrete function | Expected gain (2026 ballpark) |
|---|---|---|
| Rent demands and arrears | Quarterly demands, base rent, staged reminders | 2 to 3 days of admin saved per quarter |
| Rent reviews | Automatic RPI or CPI uplift, collar and cap, history | No missed reviews, 0.5 to 1% of rent recovered |
| Turnover rent | Monthly sales collection, top-up calculation | Under-reporting detected, 1 to 2% of sales audited |
| Service charge reconciliation | Apportionment schedules, budget, year-end balancing | Reconciliation closed in 3 weeks instead of 3 months |
| Footfall | Entrance counter import, correlation with sales | Conversion rate per retailer |
| Occupancy cost ratio | Rent plus charges divided by tenant sales | Alert above 12 to 15% depending on trade |
| Tenant portal | Sales submission, invoices, insurance certificates | 60 to 70% fewer calls to the management office |
Off-the-shelf or custom: the real 2026 costs
Commercial property packages are solid for rent demands and accounting. Their common weak spots are complex turnover clauses (tiers, deductions, Sunday trading), footfall and centre-level dashboards. Custom software flips the logic: it fits your leases, but you own the maintenance.
| Criterion | Property platform | Custom software |
|---|---|---|
| Implementation | £50,000 to £150,000 | £70,000 to £160,000 |
| Annual licences | £15 to £40 per unit per year, or £20,000 to £60,000 a year | None, hosting £3,000 to £8,000 a year |
| Rollout time | 6 to 12 months | 4 to 7 months |
| Tiered turnover rent | Often via billable customisation | Native, based on your clauses |
| Footfall counting | Rarely integrated | Connector to your sensors |
| Ongoing development | Included in licence, vendor roadmap | 15 to 20% of initial cost per year |
| 5-year total cost (220 leases) | £180,000 to £400,000 | £130,000 to £270,000 |
Custom wins when your leases are heterogeneous and you want to manage commercial performance. A platform remains relevant if your priority is consolidated client accounting across a large mixed portfolio.
Mini case study
Oliver, asset manager at a landlord owning 4 shopping centres in Greater London, manages 220 leases with 2 property managers and one accountant. Recoverable service charges reach £5.4 million a year. Without a proper tool, the team estimates it loses 1.5% of charges to apportionment errors and unrecovered items, or £81,000 a year. Missed or late rent reviews represent 0.6% of £16 million in rent, or £96,000.
With custom software at £120,000 and £20,000 of annual maintenance, the landlord recovers around £133,000 a year from year two (assuming 75% of the losses are corrected). Payback comes in about 13 months, before counting the 40 working days freed up each year on reconciliations.
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FAQ
How much does shopping centre management software cost in London in 2026?
Expect £50,000 to £150,000 to implement an off-the-shelf platform, plus licences of £20,000 to £60,000 a year. A custom build sits between £70,000 and £160,000, with maintenance at 15 to 20% a year.
Does the software handle rent reviews automatically?
Yes, it pulls the published RPI or CPI index and applies the uplift at each review date, with collars and caps. Open market reviews are tracked as workflows with deadlines and valuer notes.
Can it manage turnover rents?
Yes, retailers submit monthly sales through the portal and the software calculates the top-up above base rent. Tiered clauses, for example 8% up to £1 million then 6%, are configured lease by lease.
How are footfall counters integrated?
Entrance sensors export data through an API or a daily file. The software matches it with sales to produce a conversion rate per retailer per month, which is useful at renewal time.
How long before the first service charge reconciliation?
With a custom project of 4 to 7 months, the first year-end certificate can be produced in the tool from the following financial year. Migrating apportionment schedules and budgets takes 3 to 4 weeks of the project.
Let's scope your project. We define the scope (number of centres, leases, service charge, turnover rent and footfall modules), an indicative budget and a realistic timeline before any commitment. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.