The average UK home sale in 2026 still takes somewhere around four to five months from accepting an offer to completion, and a large share of that time is dead time — everyone waiting on paperwork that could have been ready on day one. Missing certificates, a mislaid FENSA form, an extension no one can prove was signed off: any one of them can add weeks while your buyer's solicitor raises enquiries and your chain grows impatient.
A house sale document pack is the folder of paperwork your conveyancer needs to answer a buyer's enquiries — assembled before you list, not after. Get it ready up front and you routinely take two to three weeks out of the timeline, because your solicitor can send a full contract pack the moment terms are agreed instead of chasing you for documents you have to dig out, request copies of, or replace.
What a house sale document pack actually contains
Your conveyancer will ask for most of the following. Some you already have; some you may need to request. The point of building the pack early is to find the gaps while you still have time to fix them.
Proof of identity and address — a passport or driving licence plus a recent council tax bill or bank statement, needed for anti-money-laundering checks before your solicitor can act.
Title deeds or your Land Registry title — most titles are now registered, so this is usually an official copy of the register and title plan rather than paper deeds.
Energy Performance Certificate (EPC) — a valid EPC is a legal requirement before marketing, and it must be less than ten years old.
The Property Information Form (TA6) and, for anything you're leaving behind, the Fittings and Contents Form (TA10) — the core sellers' forms in the standard conveyancing protocol.
Window and door certificates (FENSA or CERTASS) — proof any replacement glazing since 2002 was building-regulations compliant.
Building regulations completion certificates and planning permissions — for extensions, loft conversions, garage conversions, knocked-through walls or a new boiler.
Gas and electrical paperwork — your latest Gas Safe engineer's records and any electrical installation certificate (EIC) or EICR for rewiring or a new consumer unit.
Guarantees and warranties — damp-proofing, timber treatment, cavity wall insulation, a boiler warranty, a NHBC or similar new-build warranty, and any roofing or underpinning guarantees.
Why the standard forms matter so much
The TA6 alone asks about boundaries, disputes with neighbours, notices, alterations, guarantees, services and more. Buyers' solicitors base most of their enquiries on your answers, so a TA6 completed carefully — with the supporting certificates attached — heads off a whole round of back-and-forth before it starts.
The documents that cause the most delays
In practice, a small number of items are behind most of the hold-ups. Windows are the classic one: replacement glazing needs a FENSA or CERTASS certificate, and if you can't find yours, replacing it can take a couple of weeks. An extension or loft conversion with no building regulations completion certificate is worse, because there may be nothing to produce at all.
Where a certificate is genuinely lost or was never obtained, the usual fix is an indemnity policy — a one-off insurance payment, often £20–£200 depending on the risk, that protects the buyer if the council ever takes enforcement action. It's routine, but it takes time to arrange and your buyer's lender has to accept it, so finding the gap early is far better than discovering it mid-sale.
Leasehold: the pack that takes the longest
If you're selling a leasehold flat, the single biggest delay is usually the management or leasehold information pack from your freeholder or managing agent. It contains the service charge accounts, ground rent details, buildings insurance, and answers to the buyer's leasehold enquiries (the LPE1 form). Managing agents can take four to six weeks to produce it and charge a fee to do so.
The fix is simple: order it as soon as you decide to sell, not when the buyer asks. You'll also want your lease itself, recent service charge and ground rent demands, and any Section 20 notices for major works. A leasehold sale with the pack already in hand can complete on roughly the same timeline as a freehold one; without it, you lose a month before anything else even starts.
New rules you need to know for 2026
Since National Trading Standards phased in its material information guidance, estate agents are expected to display key facts — tenure, council tax band, price, and known issues such as flood risk or non-standard construction — on the listing itself. That means some of the pack now feeds your advert, not just your solicitor. Having tenure, EPC and council tax details confirmed up front keeps your listing compliant and stops corrections that can knock a property offline while they're fixed.
Here is the blunt truth: most sales don't fall through because of the survey or the money — they fall through because someone loses patience. Every week your solicitor spends waiting on a certificate you could have found in an afternoon is a week your buyer might find another house, or a week a wobbly chain has to hold together. The paperwork is the cheapest, most controllable part of your sale, and it's the part most sellers leave until it's already costing them.
What to do in the next 30 minutes
Check your EPC is still valid on the government's EPC register — if it's over ten years old, book a new assessment before you list.
Gather every certificate you can find: FENSA, building regs, Gas Safe records, electrical certificates, damp and boiler warranties.
If you've had an extension, conversion or new windows, confirm you have the completion certificate — and note any gaps to raise with your solicitor.
If you're leasehold, email your managing agent today to order the leasehold information pack; it's the longest lead-time item.
Scan or photograph everything you have into one folder so your conveyancer can be sent the full pack the day you accept an offer.
A free Home+ account gives you one secure place to keep every certificate, warranty and completion document as you go — so when you decide to sell, your house sale document pack is already built rather than something you scramble to assemble. Build your sale pack in Home+ and hand your conveyancer a complete file from day one.
Frequently asked questions
How early should I put my sale document pack together?
Ideally before you instruct an estate agent. Assembling the pack takes time when certificates are missing, and if you're leasehold the freeholder's information pack alone can take four to six weeks, so starting early is what actually buys you the saved time.
What if I can't find my FENSA or building regs certificate?
You can request a replacement FENSA certificate online for a small fee, or apply to your local authority's building control for a copy. Where no certificate ever existed, your solicitor will usually arrange an indemnity policy for the buyer instead — routine, but worth sorting before it holds up the sale.
Do I legally need an EPC to sell my house?
Yes. You must have a valid EPC — less than ten years old — commissioned before your property is marketed. It's one of the few documents that is a legal requirement rather than simply helpful, so check its status first.
Is a document pack worth it if my sale is straightforward?
Even a chain-free freehold sale raises the same standard enquiries about alterations, boundaries, services and warranties. Having the answers and certificates ready still shaves time off, and it costs you nothing but an afternoon of gathering paperwork.
