Quick wins for a faster PC:
Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The safer choice is not automatically the newer flat. Compare the two homes as complete ownership propositions: the cash needed to buy and run each one, the lease and building obligations, verified condition, energy performance, location, and the risks between exchange and completion. “New build” and “older property” are useful descriptions, not evidence of value, quality or lower costs.
Use documents and inspections for the specific flats. Population statistics can provide context, but they cannot tell you what either building will charge, require or be worth.
As an Amazon Associate I earn from qualifying purchases.
Start with a like-for-like comparison
Before deciding, create one file for each flat and collect the same evidence. An asking price is only one line in the budget. A newer flat may have modern systems but expensive shared facilities; an older flat may have a lower service charge but need immediate work. Neither outcome can be inferred from age alone.
- Purchase: price, deposit, mortgage payment, lender and mortgage fees, conveyancing, searches and other transaction costs.
- Recurring costs: council tax, electricity, gas or communal heating, water, broadband, insurance responsibilities and service charges.
- Lease and building liabilities: ground rent, administration fees, reserve or sinking-fund contributions, major works and the way your share is calculated.
- Condition: survey findings, specialist reports, defects, planned repairs and any warranty rights.
- Use and risk: journey, noise, light, storage, access, outlook, facilities, neighbouring development and completion timing.
Ask for written evidence wherever possible. An agent’s description of a charge, warranty or repair is not a substitute for the lease, accounts, contract or survey.
Compare the complete ownership budget
Build the first-year and five-year budgets
Put the two flats in separate columns and model both the first year and a longer period. Include the deposit and purchase costs, then add monthly mortgage and household expenses. Record whether each amount is fixed, estimated, one-off or subject to review. For a flat, establish which costs sit with the leaseholder and which the landlord or management company pays.
Service charges can cover maintenance and repairs, buildings insurance and cleaning of communal areas. They may also fund lifts, concierge services, gyms, gardens, security, heating systems or other amenities. Ask for the current budget, at least the recent accounts available, details of arrears and a clear schedule of what is included. A lower headline charge is not cheaper if insurance, heating or essential repairs are billed separately.
London service-charge figures are context, not a quotation
The Ministry of Housing, Communities and Local Government’s English Housing Survey 2023–24: leasehold experience fact sheet, updated 7 July 2026, reports the following for leaseholders living in flats in London:
Free tools Windows power users keep installed
One-click scans. No signup required.
| Measure | Reported figure | How to use it |
|---|---|---|
| Mean annual service charge | £2,338 | Survey estimate for the defined London population, not a forecast for either flat |
| Median annual service charge | £1,865 | Survey estimate; the median is not the likely charge for a particular block |
| Leaseholders who thought their charge was too high | 62% | Self-reported opinion, not an independent test of reasonableness |
| Leaseholders who thought their charge was fair | 34% | Self-reported opinion, not proof that a charge is fair or unfair |
Use the actual flat’s accounts, budget, reserve fund and planned-works notices to replace those context figures. Ask how your share is calculated and whether the budget has recently changed. Check whether a large balance is being held for future work or whether the block has little reserve and may need a one-off demand.
Check ground rent and administration charges
Obtain the lease and identify the ground-rent amount, review mechanism and payment dates. Do not assume a new building has no ground rent or that an older building’s rent is nominal. Check fees for notices, consent to alterations, subletting, assignment, information packs and certificate requests. Have a conveyancer explain clauses that affect lending, resale or your ability to alter the flat.
Allow for major works
Ask the seller, freeholder or managing agent about planned and recently completed works, consultation notices, insurance claims, disputes and reserve-fund balances. Roofs, façades, windows, lifts, heating plant, fire-safety systems and balconies can generate substantial liabilities in any age of building. Obtain the timetable and estimated cost, then ask your conveyancer how a liability is allocated if the work is agreed before completion but invoiced afterwards.
Read the tenure and lease before you compare buildings
Verify what each purchase actually gives you
A London flat may be leasehold whether the building is newly completed or decades old. Do not use “new build” as a synonym for leasehold or “older property” as a synonym for freehold. Confirm the title and lease for each candidate.
Recommended Free Tools
Freehold ownership normally includes the house and land, with responsibility for upkeep and no ground rent or service charge under the freehold itself. Leasehold ownership gives a time-limited right to occupy under the lease and can include charges for shared services, insurance and repairs. A flat comparison must describe the actual tenure, not a category stereotype.
Lease term and lender risk
Record the unexpired lease term and any extension rights. Official guidance warns that leases with fewer than 80 years remaining can make lenders less likely to lend or remortgage. This is a financing warning, not a universal rule applied by every lender. Ask your broker and conveyancer how the specific term affects the proposed mortgage, future sale and the cost and process of extension.
Clauses that can change how you live
Have the conveyancer identify:
- ground rent and every increase clause;
- what the service charge covers, how it is demanded and how your proportion is calculated;
- building insurance arrangements and the policy excess;
- restrictions on alterations, flooring, pets, parking, business use and subletting;
- administration fees and consent procedures;
- reserve-fund provisions, major-works powers and consultation requirements;
- the freeholder, managing agent, residents’ management company and routes for complaints or disputes.
Compare the practical effect of the clauses, not just the current annual total. A lease that requires consent for your intended renovation or limits subletting may be unsuitable even if its service charge is modest.
Building-safety records
For buildings over 11 metres or at least five storeys, official lease guidance recommends checking historical remediation and plans to address building-safety defects. Ask for the building’s relevant reports, remediation correspondence, funding position and any restrictions affecting sale or mortgage. Protections depend on the building and the leaseholder’s circumstances; your conveyancer must verify how they apply to the particular flat.
Inspect condition instead of relying on age
Commission the right survey
A mortgage valuation is for the lender and is not a buyer’s condition survey. An EPC assesses energy efficiency; it does not establish that the roof, structure, windows, heating or ventilation are sound. Commission a survey from a suitably trained professional and follow up significant findings with specialists.
Pre-1919 buildings use construction methods and materials that differ from modern buildings. Choose a surveyor with appropriate experience and ask what further investigation is needed for damp, movement, timber, roofs, drains, electrics or a boiler. Price recommended work before exchange and ask whether access restrictions prevented inspection.
What to investigate in a completed new build
Inspect the finished flat and common parts, not only a show home. Check doors and windows, seals, ventilation, heating controls, water pressure, drainage, sound transmission, finishes, storage, fire doors, balconies and communal systems. Agree in writing how and when snagging will be recorded, who remedies each item and how unresolved defects are escalated.
GOV.UK says most new builds have a 10-year warranty for major structural problems and a two-year warranty for general defects. Those are typical guide terms, not a promise that every warranty covers every part of the property or attached land. Read the actual provider, start date, exclusions, transfer terms, claim process and developer obligations. A warranty does not remove the need for a survey or make routine wear and poor maintenance claimable.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →What to investigate in an older flat
Use the survey to separate urgent defects from normal maintenance and long-term risks. Ask for invoices, guarantees, planning or building-control records for alterations, and information about previous leaks, insurance claims and recurring repairs. Obtain specialist reports where recommended and get repair quotations before committing. Age alone proves neither poor condition nor good value; evidence from the inspection and building records does.
Compare energy and everyday running costs
Read both EPCs, then test their assumptions against the flat. Compare the rating and recommendations with the age and condition of the boiler or communal plant, glazing, insulation, ventilation and heating controls. An EPC is useful for efficiency but is not proof that equipment works or that your bills will match the estimate.
Ask whether heating and hot water are individually metered, billed through the service charge or supplied by a communal system. Find out who repairs plant and how costs are recovered. Add council tax, water, electricity, gas or communal heat, broadband and insurance obligations to the budget. A well-insulated older conversion can be cheaper to run than a poorly managed modern block, while a modern system can be economical only if it is commissioned and maintained properly.
Test location and the way the flat will be used
Visit at decision-making times
Visit each property at the times you will actually use it. Measure the commute and access to shops, schools, healthcare and transport. Check noise during rush hour, evenings and weekends; light and outlook at different times; refuse storage; lift reliability; bike and car arrangements; mobile reception; storage; outdoor space; and ease of moving furniture.
List every communal facility you value and match it to the service charge. A concierge, gym, roof terrace, landscaped courtyard or extensive security may justify a higher charge for one buyer and be wasted cost for another. Also ask how facilities are maintained and what happens when they fail.
Investigate future change
Local searches can disclose specified restrictions and external factors, but they may not identify all development on neighbouring land. Ask the conveyancer whether additional searches or planning checks are warranted. Review nearby applications, construction phases and access arrangements where they could change noise, views, traffic or daylight. Treat a brochure’s promise of an open outlook as time-limited unless planning evidence supports it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Manage completion and transaction risk
When the new build is unfinished
For an uncompleted development, establish the anticipated completion window and the contractual long-stop date. Ask what happens if the date moves, whether you can rescind, and who bears costs caused by delay. Check whether your mortgage offer could expire before completion and what a reapplication would involve. Confirm what specification changes are permitted and how defects found at handover are recorded.
Understand when the deal becomes binding
In England and Wales, an offer is not legally binding until contracts are exchanged. Before exchange, use the conveyancer to complete searches, review the lease and contract, verify building-safety information, check warranty documents, confirm finance and resolve survey concerns. Do not treat a reservation agreement or an agent’s “sale agreed” status as the same protection as an exchanged contract.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
A practical comparison process
- Set your priorities. Decide which matters are non-negotiable: maximum monthly cost, commute, outside space, accessibility, subletting, renovation freedom or completion date.
- Request the core pack for both flats. Obtain the lease and title information, service-charge budgets and accounts, insurance details, ground-rent terms, planned-works notices, EPC, warranty documents where relevant and the seller’s property information.
- Build a common budget. Use the same assumptions for mortgage, council tax, utilities, insurance, service charge, ground rent, maintenance and one-off works. Mark estimates and review dates.
- Commission surveys. Choose a survey appropriate to each building, with pre-1919 experience where needed. Arrange specialist inspections for issues the survey cannot resolve.
- Audit the lease. Have the conveyancer check term, charges, restrictions, insurance, major works, reserve funds, management and building-safety matters.
- Verify the building. Inspect common parts, ask about defects and repairs, and test the facilities and systems you will pay to maintain.
- Check the area and future changes. Make repeat visits, calculate journeys and ask whether additional planning or local searches are needed.
- Stress-test the decision. Model a service-charge rise, a special major-works demand, a mortgage-offer expiry or a delayed completion. Reject a flat if the budget works only under optimistic assumptions.
- Record unresolved points. Put questions and agreed remedies in writing and make exchange conditional on satisfactory answers and documents.
- Compare evidence, not labels. Choose the flat whose verified costs, risks and daily use fit your plans, even if its age category is less fashionable.
Common mistakes that produce a false comparison
- Comparing advertised service charges alone: check inclusions, insurance, amenities, reserve funds, arrears and planned works.
- Treating an EPC as a survey: efficiency ratings do not confirm the condition or operation of building elements.
- Assuming a new-build warranty is comprehensive: confirm cover, exclusions, dates and claims with the actual warranty documents.
- Assuming the older flat is freehold: verify title and lease; many London flats of every age are leasehold.
- Ignoring lease length: a term below 80 years can affect lending and remortgaging, even though lender policies differ.
- Using a population average as a quote: the London service-charge figures describe survey respondents, not your block.
- Forecasting appreciation from the category: no current matched evidence establishes that London new builds or older flats will appreciate faster. Compare recent sold prices for genuinely comparable homes in the same area and condition, and distinguish past performance from a forecast.
- Exchange before resolving delay risk: establish the long-stop date, finance validity and contractual remedies for an unfinished development.
How to reach the decision
Choose the new-build flat when its documented lease, service-charge structure, building-safety position, warranty and completion terms work for your budget, and its location and layout meet your needs. Choose the older property when its survey, records and planned-works position show manageable obligations and its proven setting or space outweighs the work required. Either choice is defensible only when the specific flat—not its marketing category—passes the financial, legal, physical and practical checks.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
