When a conventional estate agent sale is not suitable — because of time pressure, property condition, or a complication limiting the buyer pool — the two most common alternatives are selling at property auction or selling to a cash house buying company via a private sale. Both routes can complete faster than an open market sale, but they operate differently and suit different circumstances.
Table of Contents
How property auction works
In a traditional property auction, the property is listed in a catalogue, marketed to registered bidders for a set period, and sold to the highest bidder on auction day. Exchange of contracts occurs at the point the hammer falls, and completion typically follows within 20 to 28 days.
The legal pack — title documents, searches, and any relevant surveys — must be prepared before the auction and made available to prospective buyers. Modern auction methods include conditional and online auctions, where the exchange timeline is extended and mortgage buyers can participate.
What “certainty” means at auction
At auction, certainty only exists once the hammer falls and contracts are exchanged. Before the auction, there is no guarantee the property will sell, the final price is unknown, and demand is tested live on the day. Industry data consistently shows that a significant proportion of auction lots do not sell on the auction day — typically, only around two-thirds of lots offered are successfully sold, meaning a substantial number either fail to meet reserve or are withdrawn.
If bidding does not reach the reserve price, the property remains unsold, the seller may face pressure to renegotiate, or the property may need to be re-entered at a later auction. There is no obligation on buyers to improve bids if demand is limited.
How auction reserve prices are set
A key but often misunderstood part of the auction process is the reserve price. It is the auctioneer’s job to attract as much bidder interest as possible and maximise the chance of a sale — to achieve this, auctioneers typically push for the lowest realistic reserve price, not the highest. While the seller agrees the reserve, the strategy is based on stimulating bidding momentum and hoping competition drives the price up on the day. There are no guarantees this will happen.
Under auction rules, the reserve price must sit within 10% of the guide price. If the highest bid meets or exceeds the reserve, the seller is legally obligated to accept the sale, and the outcome is binding once the hammer falls. This means that if bidding only reaches the minimum acceptable level, the seller cannot reject the result, even if expectations were higher. The hope is always that bidding exceeds the reserve — but that outcome is not guaranteed.
How a private cash sale works
In a private cash sale, the seller deals directly with a single buying company. There is no competitive bidding and no public marketing. The buyer makes an offer based on their own assessment and, if accepted, both parties proceed toward exchange and completion.
The timeline is more flexible than auction but less certain, because the transaction depends on a single buyer’s funding and behaviour. Until exchange, neither party is legally bound.
Price: what each route typically achieves
Auction outcomes depend on competition on the day. A well-promoted lot with genuine demand can achieve close to open market value. In practice, many lots sell at a discount because the buyer pool is restricted to cash buyers and investors who can complete within the required timeframe.
Private cash sales consistently achieve below open market value — typically 75% to 85%. Auction is generally the better route for price among fast sale options where competitive interest exists. A private cash sale offers greater certainty of sale at a lower price.
| Factor | Cash-buying company | Estate agent | Auction |
|---|---|---|---|
| Typical proceeds | 75–85% of market value | Close to full market value (minus fees) | Variable — reserve plus hammer price |
| Typical timeline | 7–28 days | about 5–6 months (≈25 weeks) | ~6–10 weeks (incl. 28-day completion) |
| Sale falls through? | Very low | roughly 25–35% (about 1 in 3) | around 15% |
| Fees to you | Usually none — buyer covers legals | Agent commission (~1–2%+VAT), legal, EPC | Auction/entry fees, legal pack |
Sources: Propertymark; TwentyCi; Rightmove; Zoopla; HM Land Registry / ONS UK House Price Index. Verified June 2026.
Fees
Auction fees for sellers typically include an entry fee (charged regardless of whether the property sells), the cost of preparing the legal pack, and sometimes a seller’s commission. Total costs can range from 2% to 4% of the sale price.
In a legitimate private cash sale, the buyer typically covers the seller’s legal fees and does not charge the seller additional fees. The buyer’s cost is absorbed into the below-market offer price.
Legal commitment and risk
In a traditional auction, exchange happens at the point of sale — the hammer falls and both parties are legally bound. The seller’s risk of collapse after that point is low. The risk before auction is that the property does not sell, in which case preparation costs are lost.
In a private cash sale, neither party is legally bound until exchange of contracts, which may be weeks after offer acceptance. The offer may be reduced after survey, or the buyer may withdraw. Understanding when risk transfers is more important than claims about speed.
Which circumstances suit each route
Auction tends to suit
- Properties that are unusual, distressed, or otherwise difficult to sell through standard estate agency
- Sellers who want a competitive bidding process
- Probate properties where the executor needs to demonstrate fair market exposure
Private cash sale tends to suit
- Sellers who need maximum speed and certainty, where price is secondary
- Properties with complications that would deter auction bidders
- Situations where public marketing is undesirable
Questions to ask before choosing either route
Before committing to either route, sellers should ask:
- What happens if the property doesn’t sell at auction?
- At what price would I be legally committed to sell if bidding reaches the reserve?
- What costs will I incur if the auction is unsuccessful?
- How certain is a cash buyer’s funding?
- At what point is either route legally binding?
- How long could completion realistically take?
- What price am I likely to achieve in each scenario?
If achieving the highest possible price is your priority, auction may offer upside — but no guarantees. If certainty, control, and timing matter more than price, a genuine cash buyer may be more appropriate. Understanding the trade-offs, not the marketing claims, leads to better decisions.
Related guides: What is a cash homebuying company? | How much do cash homebuyers pay? | Part exchange house schemes explained
Your next step
Already have an offer on the table — or had one reduced? Check it against a realistic range. Our offer tool shows what genuine cash buyers typically pay — 75–85% of open-market value — so you can see whether the figure in front of you stacks up before you commit.
Step 1 is free and anonymous — no name, phone number or email, just basic property details. Step 2 is entirely optional — if the range works for you, you can ask to be introduced to a cash buyer we have vetted. Your details are never shared unless you ask, and never sold.
Check your offer against a realistic range
When a conventional estate agent sale is not suitable — because of time pressure, property condition, or a complication limiting the buyer pool — the two most common alternatives are selling at property auction or selling to a cash house buying company via a private sale. Both routes can complete faster than an open market sale, but they operate differently and suit different circumstances.
Table of Contents
How property auction works
In a traditional property auction, the property is listed in a catalogue, marketed to registered bidders for a set period, and sold to the highest bidder on auction day. Exchange of contracts occurs at the point the hammer falls, and completion typically follows within 20 to 28 days.
The legal pack — title documents, searches, and any relevant surveys — must be prepared before the auction and made available to prospective buyers. Modern auction methods include conditional and online auctions, where the exchange timeline is extended and mortgage buyers can participate.
What “certainty” means at auction
At auction, certainty only exists once the hammer falls and contracts are exchanged. Before the auction, there is no guarantee the property will sell, the final price is unknown, and demand is tested live on the day. Industry data consistently shows that a significant proportion of auction lots do not sell on the auction day — typically, only around two-thirds of lots offered are successfully sold, meaning a substantial number either fail to meet reserve or are withdrawn.
If bidding does not reach the reserve price, the property remains unsold, the seller may face pressure to renegotiate, or the property may need to be re-entered at a later auction. There is no obligation on buyers to improve bids if demand is limited.
How auction reserve prices are set
A key but often misunderstood part of the auction process is the reserve price. It is the auctioneer’s job to attract as much bidder interest as possible and maximise the chance of a sale — to achieve this, auctioneers typically push for the lowest realistic reserve price, not the highest. While the seller agrees the reserve, the strategy is based on stimulating bidding momentum and hoping competition drives the price up on the day. There are no guarantees this will happen.
Under auction rules, the reserve price must sit within 10% of the guide price. If the highest bid meets or exceeds the reserve, the seller is legally obligated to accept the sale, and the outcome is binding once the hammer falls. This means that if bidding only reaches the minimum acceptable level, the seller cannot reject the result, even if expectations were higher. The hope is always that bidding exceeds the reserve — but that outcome is not guaranteed.
How a private cash sale works
In a private cash sale, the seller deals directly with a single buying company. There is no competitive bidding and no public marketing. The buyer makes an offer based on their own assessment and, if accepted, both parties proceed toward exchange and completion.
The timeline is more flexible than auction but less certain, because the transaction depends on a single buyer’s funding and behaviour. Until exchange, neither party is legally bound.
Price: what each route typically achieves
Auction outcomes depend on competition on the day. A well-promoted lot with genuine demand can achieve close to open market value. In practice, many lots sell at a discount because the buyer pool is restricted to cash buyers and investors who can complete within the required timeframe.
Private cash sales consistently achieve below open market value — typically 75% to 85%. Auction is generally the better route for price among fast sale options where competitive interest exists. A private cash sale offers greater certainty of sale at a lower price.
| Factor | Cash-buying company | Estate agent | Auction |
|---|---|---|---|
| Typical proceeds | 75–85% of market value | Close to full market value (minus fees) | Variable — reserve plus hammer price |
| Typical timeline | 7–28 days | about 5–6 months (≈25 weeks) | ~6–10 weeks (incl. 28-day completion) |
| Sale falls through? | Very low | roughly 25–35% (about 1 in 3) | around 15% |
| Fees to you | Usually none — buyer covers legals | Agent commission (~1–2%+VAT), legal, EPC | Auction/entry fees, legal pack |
Sources: Propertymark; TwentyCi; Rightmove; Zoopla; HM Land Registry / ONS UK House Price Index. Verified June 2026.
Fees
Auction fees for sellers typically include an entry fee (charged regardless of whether the property sells), the cost of preparing the legal pack, and sometimes a seller’s commission. Total costs can range from 2% to 4% of the sale price.
In a legitimate private cash sale, the buyer typically covers the seller’s legal fees and does not charge the seller additional fees. The buyer’s cost is absorbed into the below-market offer price.
Legal commitment and risk
In a traditional auction, exchange happens at the point of sale — the hammer falls and both parties are legally bound. The seller’s risk of collapse after that point is low. The risk before auction is that the property does not sell, in which case preparation costs are lost.
In a private cash sale, neither party is legally bound until exchange of contracts, which may be weeks after offer acceptance. The offer may be reduced after survey, or the buyer may withdraw. Understanding when risk transfers is more important than claims about speed.
Which circumstances suit each route
Auction tends to suit
- Properties that are unusual, distressed, or otherwise difficult to sell through standard estate agency
- Sellers who want a competitive bidding process
- Probate properties where the executor needs to demonstrate fair market exposure
Private cash sale tends to suit
- Sellers who need maximum speed and certainty, where price is secondary
- Properties with complications that would deter auction bidders
- Situations where public marketing is undesirable
Questions to ask before choosing either route
Before committing to either route, sellers should ask:
- What happens if the property doesn’t sell at auction?
- At what price would I be legally committed to sell if bidding reaches the reserve?
- What costs will I incur if the auction is unsuccessful?
- How certain is a cash buyer’s funding?
- At what point is either route legally binding?
- How long could completion realistically take?
- What price am I likely to achieve in each scenario?
If achieving the highest possible price is your priority, auction may offer upside — but no guarantees. If certainty, control, and timing matter more than price, a genuine cash buyer may be more appropriate. Understanding the trade-offs, not the marketing claims, leads to better decisions.
Related guides: What is a cash homebuying company? | How much do cash homebuyers pay? | Part exchange house schemes explained
Your next step
Already have an offer on the table — or had one reduced? Check it against a realistic range. Our offer tool shows what genuine cash buyers typically pay — 75–85% of open-market value — so you can see whether the figure in front of you stacks up before you commit.
Step 1 is free and anonymous — no name, phone number or email, just basic property details. Step 2 is entirely optional — if the range works for you, you can ask to be introduced to a cash buyer we have vetted. Your details are never shared unless you ask, and never sold.
Check your offer against a realistic range
When a conventional estate agent sale is not suitable — because of time pressure, property condition, or a complication limiting the buyer pool — the two most common alternatives are selling at property auction or selling to a cash house buying company via a private sale. Both routes can complete faster than an open market sale, but they operate differently and suit different circumstances.
Table of Contents
How property auction works
In a traditional property auction, the property is listed in a catalogue, marketed to registered bidders for a set period, and sold to the highest bidder on auction day. Exchange of contracts occurs at the point the hammer falls, and completion typically follows within 20 to 28 days.
The legal pack — title documents, searches, and any relevant surveys — must be prepared before the auction and made available to prospective buyers. Modern auction methods include conditional and online auctions, where the exchange timeline is extended and mortgage buyers can participate.
What “certainty” means at auction
At auction, certainty only exists once the hammer falls and contracts are exchanged. Before the auction, there is no guarantee the property will sell, the final price is unknown, and demand is tested live on the day. Industry data consistently shows that a significant proportion of auction lots do not sell on the auction day — typically, only around two-thirds of lots offered are successfully sold, meaning a substantial number either fail to meet reserve or are withdrawn.
If bidding does not reach the reserve price, the property remains unsold, the seller may face pressure to renegotiate, or the property may need to be re-entered at a later auction. There is no obligation on buyers to improve bids if demand is limited.
How auction reserve prices are set
A key but often misunderstood part of the auction process is the reserve price. It is the auctioneer’s job to attract as much bidder interest as possible and maximise the chance of a sale — to achieve this, auctioneers typically push for the lowest realistic reserve price, not the highest. While the seller agrees the reserve, the strategy is based on stimulating bidding momentum and hoping competition drives the price up on the day. There are no guarantees this will happen.
Under auction rules, the reserve price must sit within 10% of the guide price. If the highest bid meets or exceeds the reserve, the seller is legally obligated to accept the sale, and the outcome is binding once the hammer falls. This means that if bidding only reaches the minimum acceptable level, the seller cannot reject the result, even if expectations were higher. The hope is always that bidding exceeds the reserve — but that outcome is not guaranteed.
How a private cash sale works
In a private cash sale, the seller deals directly with a single buying company. There is no competitive bidding and no public marketing. The buyer makes an offer based on their own assessment and, if accepted, both parties proceed toward exchange and completion.
The timeline is more flexible than auction but less certain, because the transaction depends on a single buyer’s funding and behaviour. Until exchange, neither party is legally bound.
Price: what each route typically achieves
Auction outcomes depend on competition on the day. A well-promoted lot with genuine demand can achieve close to open market value. In practice, many lots sell at a discount because the buyer pool is restricted to cash buyers and investors who can complete within the required timeframe.
Private cash sales consistently achieve below open market value — typically 75% to 85%. Auction is generally the better route for price among fast sale options where competitive interest exists. A private cash sale offers greater certainty of sale at a lower price.
| Factor | Cash-buying company | Estate agent | Auction |
|---|---|---|---|
| Typical proceeds | 75–85% of market value | Close to full market value (minus fees) | Variable — reserve plus hammer price |
| Typical timeline | 7–28 days | about 5–6 months (≈25 weeks) | ~6–10 weeks (incl. 28-day completion) |
| Sale falls through? | Very low | roughly 25–35% (about 1 in 3) | around 15% |
| Fees to you | Usually none — buyer covers legals | Agent commission (~1–2%+VAT), legal, EPC | Auction/entry fees, legal pack |
Sources: Propertymark; TwentyCi; Rightmove; Zoopla; HM Land Registry / ONS UK House Price Index. Verified June 2026.
Fees
Auction fees for sellers typically include an entry fee (charged regardless of whether the property sells), the cost of preparing the legal pack, and sometimes a seller’s commission. Total costs can range from 2% to 4% of the sale price.
In a legitimate private cash sale, the buyer typically covers the seller’s legal fees and does not charge the seller additional fees. The buyer’s cost is absorbed into the below-market offer price.
Legal commitment and risk
In a traditional auction, exchange happens at the point of sale — the hammer falls and both parties are legally bound. The seller’s risk of collapse after that point is low. The risk before auction is that the property does not sell, in which case preparation costs are lost.
In a private cash sale, neither party is legally bound until exchange of contracts, which may be weeks after offer acceptance. The offer may be reduced after survey, or the buyer may withdraw. Understanding when risk transfers is more important than claims about speed.
Which circumstances suit each route
Auction tends to suit
- Properties that are unusual, distressed, or otherwise difficult to sell through standard estate agency
- Sellers who want a competitive bidding process
- Probate properties where the executor needs to demonstrate fair market exposure
Private cash sale tends to suit
- Sellers who need maximum speed and certainty, where price is secondary
- Properties with complications that would deter auction bidders
- Situations where public marketing is undesirable
Questions to ask before choosing either route
Before committing to either route, sellers should ask:
- What happens if the property doesn’t sell at auction?
- At what price would I be legally committed to sell if bidding reaches the reserve?
- What costs will I incur if the auction is unsuccessful?
- How certain is a cash buyer’s funding?
- At what point is either route legally binding?
- How long could completion realistically take?
- What price am I likely to achieve in each scenario?
If achieving the highest possible price is your priority, auction may offer upside — but no guarantees. If certainty, control, and timing matter more than price, a genuine cash buyer may be more appropriate. Understanding the trade-offs, not the marketing claims, leads to better decisions.
Related guides: What is a cash homebuying company? | How much do cash homebuyers pay? | Part exchange house schemes explained
Your next step
Already have an offer on the table — or had one reduced? Check it against a realistic range. Our offer tool shows what genuine cash buyers typically pay — 75–85% of open-market value — so you can see whether the figure in front of you stacks up before you commit.
Step 1 is free and anonymous — no name, phone number or email, just basic property details. Step 2 is entirely optional — if the range works for you, you can ask to be introduced to a cash buyer we have vetted. Your details are never shared unless you ask, and never sold.
Check your offer against a realistic range