Survey Issues When Selling a Leasehold Flat

Selling a leasehold flat comes with a distinct set of challenges that go beyond what surveyors typically find in freehold houses. The buyer's surveyor will assess the condition of your flat, but the leasehold structure itself introduces additional layers of complexity — from the length of your lease and the level of service charges to the condition of communal areas and the financial health of the management company.

Understanding these leasehold-specific survey considerations helps you prepare properly, avoid preventable delays, and present your flat in the strongest possible position to buyers and their lenders. This guide covers the key issues that arise during surveys of leasehold flats and the practical steps you can take as a seller.

What the surveyor can and cannot inspect

When a buyer commissions a survey on your leasehold flat, the surveyor's access is typically restricted to the demised premises — the internal space of your flat as defined by the lease. This means the surveyor will inspect:

• Internal walls, floors, and ceilings within the flat
• Windows and external doors belonging to the flat
• Kitchen and bathroom fittings
• Heating and plumbing systems serving the flat
• Electrical installations within the flat
• Any balcony or terrace exclusively belonging to the flat

The surveyor will not usually have access to the roof, the building's structural frame, communal heating systems, shared drainage, or the building's foundations. They will note the condition of any communal areas they pass through — entrance halls, stairways, corridors — but a full inspection of the building structure is outside the scope of a standard flat survey.

This limited access means that many of the most significant issues affecting leasehold flats are discovered not through the physical survey but through the conveyancing process and the information contained in the management pack.

Lease length: the single biggest factor

The remaining term on your lease is the most significant leasehold factor affecting your sale. Surveyors and valuers will flag lease length prominently in their reports, and mortgage lenders apply strict criteria based on the number of years remaining.

How lease length affects mortgage availability

The critical threshold is 80 years. Once a lease falls below this point, the statutory cost of extending it increases substantially because "marriage value" becomes payable to the freeholder. Marriage value represents the increase in the property's value that results from the lease extension, and the leaseholder must pay the freeholder 50 per cent of this increase.

If your lease has fewer than 85 years remaining, you should seriously consider extending it before marketing your flat. You need to have owned the property for at least two years to exercise the statutory right under the Leasehold Reform, Housing and Urban Development Act 1993. The process typically takes three to six months and costs between £5,000 and £15,000 or more, depending on the property value and remaining term.

Service charges and the management pack

The buyer's solicitor will request a management pack from your freeholder or managing agent, typically using the LPE1 form. This pack contains critical information that can affect the survey valuation and the buyer's willingness to proceed.

What the management pack contains

• Current service charge level and account statements
• Ground rent amount and review provisions
• Details of any planned or recent major works
• Section 20 consultation notices
• Building insurance details and claims history
• Reserve fund balance
• Any ongoing disputes or tribunal proceedings
• Compliance certificates (fire safety, gas, electrical)

Service charges that are significantly higher than comparable properties, or that have increased sharply in recent years, will concern buyers and may lead to renegotiation. A healthy reserve fund suggests the building is well-managed and reduces the risk of unexpected large bills. A depleted or non-existent reserve fund is a warning sign that major works costs will need to be met through one-off levies.

Service charge arrears

If you have outstanding service charge arrears, these must be cleared before or at completion. The buyer's solicitor will require confirmation from the managing agent that all charges are up to date. Arrears can delay the sale and may raise concerns about the building's overall financial management. Clear any arrears before marketing if possible.

Ground rent review clauses

Ground rent clauses vary enormously between leases, and some types are now considered toxic by mortgage lenders. The surveyor's valuation report will note the ground rent provisions, and the buyer's solicitor will scrutinise them carefully.

Types of ground rent clause

Doubling ground rent clauses are the most problematic. A ground rent of £250 that doubles every 25 years reaches £8,000 per year after 125 years. Mortgage lenders view this as a serious risk because the ground rent could eventually exceed the property's rental value, triggering the right for the freeholder to seek forfeiture of the lease. If your lease contains a doubling clause, you may need to negotiate a deed of variation with the freeholder before the sale can proceed.

Section 20 notices and major works

Section 20 of the Landlord and Tenant Act 1985 requires freeholders and managing agents to consult leaseholders before carrying out qualifying works costing more than £250 per leaseholder. If a Section 20 notice has been served on your building, this will affect your sale in several ways.

• If the works have been completed and paid for, no further action is needed — but the buyer's solicitor may ask for confirmation
• If the works have been completed but not yet invoiced, the buyer will want to know the estimated cost and may request a retention from the sale proceeds
• If the works have not yet started, the buyer is taking on a future liability and will factor this into their offer price

Common major works covered by Section 20 notices include roof replacement, external redecoration, window replacement, lift refurbishment, and structural repairs. The cost per leaseholder can range from a few thousand pounds for redecoration to £20,000 or more for significant structural work or cladding remediation.

As a seller, it is important to disclose any Section 20 notices honestly on the property information forms. Failing to disclose a known future liability could amount to misrepresentation.

Building insurance complications

In a leasehold flat, the freeholder is responsible for arranging buildings insurance for the entire block, with the cost typically recovered through the service charge. The buyer's mortgage lender will require evidence that adequate insurance is in place before releasing funds.

Issues that can arise include:

• Insurance premiums that have risen sharply, often due to the building being in a flood risk area, having a subsidence history, or requiring cladding remediation
• Insufficient reinstatement value — the sum insured may not reflect the true cost of rebuilding
• Excess levels that are unusually high, particularly for subsidence claims
• A history of refused claims or policy cancellations
• The freeholder failing to provide a copy of the policy promptly

As a seller, you have limited control over the building insurance, but you should ensure the managing agent can provide the insurance summary and schedule quickly when the buyer's solicitor requests it. Delays in obtaining insurance information are a common cause of hold-ups in leasehold flat sales.

Cladding and fire safety

Since the Grenfell Tower tragedy in 2017 and the subsequent Building Safety Act 2022, fire safety has become a significant concern for leasehold flat sales, particularly in buildings over 11 metres tall.

EWS1 forms

An External Wall System (EWS1) form confirms that the building's external wall system has been assessed by a qualified fire engineer. Buildings over 18 metres require an EWS1 form for most mortgage applications. Buildings between 11 and 18 metres may also require one, depending on the lender and the building's construction.

If your building does not have an EWS1 form or has received an adverse rating, mortgage lenders may refuse to lend on flats in the building. This effectively restricts your buyer pool to cash purchasers, which typically reduces the achievable sale price significantly. The Building Safety Fund provides government funding for remediation of unsafe cladding on buildings over 18 metres, and the Building Safety Act includes protections for leaseholders regarding remediation costs.

Common physical defects in leasehold flats

Beyond the leasehold-specific issues, surveyors will assess the physical condition of the flat itself. Common findings include:

Purpose-built flats

• Condensation and mould, particularly in bathrooms and kitchens without adequate ventilation
• Outdated electrics — a full rewire may be needed in flats built before the 1990s
• Window failures — misted double-glazed units or perished seals
• Balcony defects — cracked concrete, corroded reinforcement, poor waterproofing
• Heating systems nearing end of life

Converted flats

Converted flats present additional challenges because the original building was not designed as multiple dwellings. Surveyors frequently flag:

• Inadequate fire compartmentation between flats
• Poor sound insulation between floors and walls
• Missing or inadequate building regulations approval for the conversion
• Shared drainage and plumbing that is difficult to maintain
• Structural alterations that may not have been properly designed

Management company issues

The quality of the building's management can significantly affect a buyer's willingness to proceed and the survey valuation. Issues that concern buyers include:

• A managing agent that is slow to respond or provides incomplete information
• Ongoing disputes between leaseholders and the freeholder or managing agent
• First-tier Tribunal (Property Chamber) proceedings relating to service charges or management failures
• A Right to Manage application in progress, which creates uncertainty about future management arrangements
• Poor maintenance of communal areas, which the surveyor will note even though they cannot carry out a full inspection

If your building is managed by a resident management company, ensure that the company's accounts are up to date and that the company is properly constituted at Companies House. Buyers' solicitors will check this, and any irregularities can cause delays.

How leasehold issues compound survey findings

One of the particular challenges of selling a leasehold flat is that physical survey findings and leasehold issues can compound each other. A damp problem in a freehold house is a negotiating point. The same damp problem in a leasehold flat raises additional questions: is the source within the flat or in the building structure? Whose responsibility is it to fix? Has the freeholder been notified? Is the building insurance claim process straightforward?

Similarly, a roof defect in a house is the seller's problem to address. In a leasehold flat, the roof is typically the freeholder's responsibility, and the cost of repair is shared among all leaseholders through the service charge. The buyer needs reassurance that the freeholder will carry out the repair and that the cost will be reasonable.

This compounding effect means that leasehold flat sales are particularly sensitive to survey findings, and sellers need to be prepared for more detailed follow-up enquiries than would be typical for a freehold sale.

Preparing your leasehold flat for sale

Taking the following steps before marketing can significantly reduce the risk of survey-related delays and renegotiation:

1. Order the management pack early. Request the LPE1 form from your freeholder or managing agent as soon as you decide to sell. It can take two to six weeks to arrive, and delays here are one of the most common causes of hold-ups in leasehold flat sales.
2. Check your lease length. If you have fewer than 85 years remaining, take advice on a lease extension before marketing. Even if you cannot complete the extension before selling, having the process underway can reassure buyers.
3. Clear any service charge arrears. Outstanding arrears will need to be settled before completion and may raise concerns about the building's management.
4. Gather documentation. Collect your lease, any deeds of variation, building insurance details, recent service charge accounts, and any Section 20 notices. Having these ready speeds up the conveyancing process.
5. Address any known defects. Fix minor issues within your flat — dripping taps, damaged sealant, cracked tiles — that a surveyor might flag. These small items are inexpensive to address but can create a negative impression in a survey report.
6. Check the EWS1 position. If your building is over 11 metres tall, confirm whether an EWS1 form is available and what rating it received. This information is essential for buyers who need a mortgage.

What to do when survey issues arise

If the buyer's survey raises concerns — whether about the physical condition of the flat or leasehold matters — respond promptly and constructively. Provide any relevant documentation you have, such as service records, guarantees, or correspondence with the managing agent about building maintenance.

For issues that fall within the freeholder's responsibility, such as structural defects or communal area repairs, put the buyer's solicitor in touch with the managing agent so that queries can be addressed directly. Delays often occur because information has to pass through multiple parties — seller to seller's solicitor to buyer's solicitor to managing agent and back — so streamlining communication is key.

If the buyer requests a price reduction based on survey findings, consider whether the issues raised are genuine concerns or items that were already reflected in your asking price. Having your own evidence — such as recent service charge accounts showing a healthy reserve fund, or a letter from the managing agent confirming planned maintenance — helps you respond to renegotiation requests from a position of knowledge.

Costs specific to leasehold flat sales

These costs are in addition to standard selling costs such as estate agent fees and conveyancing fees. Factor them into your budget when calculating your net sale proceeds.

Frequently asked questions