Service Charges in Nine Elms and Battersea: What Buyers Really Pay

When you buy a flat in a serviced building, the mortgage is only part of the monthly cost. The other part is the service charge: the annual sum every leaseholder pays towards running the building. In Nine Elms and Battersea it tends to sit above the national average, because these are some of the most heavily serviced new-builds in London.

That is worth understanding rather than fearing. A service charge pays for real things: cleaning, lift and plant maintenance, buildings insurance, security, staff, communal energy, and a reserve fund for big future works. On a riverside tower with a 24-hour concierge, a gym, and a pool, the bill is higher because the building does more. For a lot of buyers, that is exactly what they are paying for.

This guide sets out what is normal, how the charge is divided between flats, what pushes it up here, and the checks worth making before you offer. Every figure links to its source.

The service charge shapes the true monthly cost of a flat, so it is worth checking as early as the price and the lease length, not after you have offered.

What counts as normal

Start with the national picture, as a benchmark.

Across England and Wales, the average flat service charge reached £2,405 a year, or £200 a month, in 2025, according to the Hamptons Service Charge Index. In London the average was higher, at £2,801 a year, and it has risen 41% over five years.

Those are averages across every flat, old and new, so they are not what you will pay in a new amenity building. Blocks with staff and facilities sit well above them. Treat the London average as a floor, and expect a well-serviced new-build to be a good deal higher.

How the charge is split between flats

A common assumption is that a building simply divides its costs equally between homes. Sometimes it does, but often it does not.

How your share is worked out is set out in your lease. The usual methods are by floor area, by a fixed percentage written into the lease, or in equal shares. Floor area is the most common in modern blocks: your flat’s size as a proportion of the whole building sets your percentage, so a larger flat generally pays more than a smaller one in the same scheme. Because it is fixed by the lease, this is not something a managing agent can change on a whim.

That is worth checking on the specific flat you are looking at, because two similar-sounding flats in the same postcode can carry quite different charges.

Why charges are higher here

The size of the total comes down to two things: how much the building does, and how many homes share the cost.

Service charges on prime London new-builds are usually quoted per square foot, and commonly run from around £5 to £20 per square foot a year depending on the building. A 1,000 square foot two-bedroom flat at £12 per square foot works out at roughly £12,000 a year. The facilities are the main reason. Research by Savills found that a 24-hour concierge can add close to 40% to a building’s charge, and a gym around a quarter, with pools and spas adding large fixed costs.

Here is the part people miss. Those facilities cost roughly the same to run whether the scheme has 200 flats or 600. A concierge desk, a plant room, and a pool are largely fixed costs, so a smaller building spreads them over fewer homes and each one pays more. That is why two towers with similar facilities can charge very differently.

None of this is unusual for a serviced building. It is the running cost of the lifestyle the building provides, and for many buyers the concierge, the security, and the maintained communal spaces are the point.

Putting a high charge in context

On its own, a high charge is not a problem. A well-run, well-funded building protects both your day-to-day living and your resale value. A healthy reserve fund means a new lift or a re-clad is planned for rather than arriving as a surprise. A concierge and good security are things buyers pay a premium for when it is time to sell.

The useful question is not whether the number is big, but what it includes and how the building is run. Both are knowable from the accounts, which the rest of this guide covers.

Your rights as a leaseholder

Leaseholders have statutory protections over service charges, and they are worth knowing as background.

Under section 19 of the Landlord and Tenant Act 1985, a charge is payable to the extent it is reasonably incurred, and for works of a reasonable standard. For large one-off works, if a project will cost any single leaseholder more than £250, the freeholder consults leaseholders first under section 20. If you ever want a charge reviewed, you can apply to the First-tier Tribunal under section 27A.

On a well-run building these rarely come into play. They are simply there as a backstop, and they mean a charge is tied to what the building provides.

The reform picture, and why not to rely on it yet

Leasehold reform is coming, but slowly, so judge a flat on the building in front of you rather than on a promised change.

The Leasehold and Freehold Reform Act 2024 is law and promises more transparency: standardised service charge demands, clearer annual accounts, and a stronger right to see how your money is spent. As of 2026 those specific measures are not yet in force. They wait on secondary legislation, and a government consultation on service charges only closed in September 2025. The direction is good. The timing is not settled.

What to check before you offer

The service charge is knowable before you commit. Ask for these, and read them properly.

• The last three years of service charge accounts, not just this year’s budget, so you can see the trend and any sharp jumps.
• The current year’s budget, broken down by line, so you can see what the concierge, the pool, and the plant actually cost.
• The reserve fund balance, and whether it looks adequate for a building of this age and height. A thin reserve on a tall tower is worth asking about.
• Any major works planned or recent, and whether a section 20 consultation has been issued.
• How your share is apportioned, and what the charge includes. On a shared-ownership flat, check you are not paying for facilities reserved for other blocks.
• The ground rent terms, which are separate from the service charge and can carry their own escalation.

A high service charge is not a reason to walk away. A concierge and a well-run building have real value, and they protect resale. What you want is to know the number, understand what it buys, and be confident it is fair before you offer.

If you want a second read on a specific development’s charges before you offer, that is worth doing early, alongside the wider things to confirm before you make an offer in Battersea.

Sources

• Hamptons, 2025 Service Charge Index (national and London averages, five-year change).
• The Leasehold Advisory Service (LEASE), How should my service charge be calculated? (apportionment methods) and Section 20 consultation (major works and the £250 threshold).
• Savills, Service charges in the spotlight (per square foot ranges, concierge and gym cost impact).
• Shelter, Challenging service charges, and GOV.UK, Form Leasehold 3 (reasonableness and the tribunal route).
• HomeOwners Alliance, Leasehold reform latest (Leasehold and Freehold Reform Act 2024 status).