Look, here’s what nobody tells you about part exchange houses and why developers love offering them so much.
Part exchange sounds brilliant on paper. You trade your old house to a new build developer as part payment for their shiny new property. One transaction, done in weeks, no estate agent viewings, no chains.
Except here’s what actually happens. You lose £20,000 to £40,000 through below market value offers. Then you overpay another £25,000 to £50,000 on an inflated new build. You’re locked into buying only that developer’s properties. And about 90% of people who enquire get rejected anyway because of brutal eligibility criteria nobody mentions upfront.
The combined financial penalty typically hits £50,000 to £80,000 compared to selling properly and buying an equivalent older property.
That’s not a typo. Fifty to eighty grand.
And developers market this as “convenient.”
Part exchange is where a new build developer buys your existing property and deducts its value from their new build price. Sounds straightforward.
The devil’s in the details.
The developer arranges “independent” valuations (spoiler: they’re not really independent when the developer’s paying them). They make you an offer. You accept or walk away. They deduct this from their new build price. You complete in 4 to 6 weeks.
What they don’t shout about is that their offer will be 80% to 90% of your property’s actual market value. Sometimes as low as 75%.
On a £200,000 house, that means they’re offering you £160,000 to £180,000. You’ve just lost £20,000 to £40,000.
And that’s before we get to the inflated new build pricing.
Here’s how it works step by step, and notice who’s in control at every stage:
The developer arranges the valuation. The developer chooses the valuer. The developer makes the offer. The developer sets the terms. The developer controls the timeline.
You get to say yes or no. That’s your entire negotiating position.
First, you have initial consultations where they check if you even qualify (most people don’t, but we’ll get to that). Then comes the “independent” valuation arranged and paid for by the developer.
They make you a provisional offer, usually 85% to 90% of market value if you’re lucky. You pay a reservation fee to secure your new build plot. You pay a 10% deposit on the new build.
Exchange happens within 4 to 6 weeks if everything goes perfectly. The developer then markets your old property whilst you complete and move into your new build.
During all this, you’re living in your property whilst the developer sends estate agents round for viewings. You have zero control over timing or who views. You’re essentially living in a show home whilst trying to pack and prepare for your move.
And if the developer’s new build isn’t ready? Your completion gets delayed. You’re stuck paying two mortgages or rent whilst waiting for them to finish building.
Right, here’s where it gets properly restrictive. Part exchange schemes exclude about 90% of people who enquire. But developers don’t lead with this information because they want you excited first.
Your property must be worth only 65% to 75% of the new build price you’re buying. So if you’re buying a £300,000 new build, your current property can’t be worth more than £195,000 to £225,000. Anything above that? Rejected.
Your property must be in excellent condition. Any significant repairs needed? Rejected. Damp issues? Rejected. Outdated kitchen or bathroom? Probably rejected.
Leasehold properties need 80+ years remaining on the lease. Got 75 years left? Rejected.
Ex-local authority properties usually get excluded completely. Doesn’t matter if they’re perfectly maintained.
Your property typically needs to be in the same geographical area as the development. Want to relocate from Manchester to Bristol? Rejected.
And the killer: part exchange is only available on specific plots the developer hasn’t sold yet. Found the perfect property in their development but they’ve already sold it to someone else? You can’t use part exchange even if you meet every other criteria.
We know someone who spent three weeks getting excited about a part exchange offer, jumped through all the hoops, only to discover her property was worth 78% of the new build price. Required maximum: 75%. Rejected.
Three weeks wasted. Back to square one.
This is where developers properly clean up, and why they love part exchange schemes so much.
They offer you 80% to 90% of your property’s market value. Let’s say your house is actually worth £200,000. They offer £170,000. You’ve lost £30,000 immediately.
“But why?” you ask.
They’ll tell you it covers their risk. They need to market and sell your property. They’ve got holding costs whilst they own it. They need profit margin for the hassle.
All true. But here’s the thing: you’re absorbing that entire cost.
When we at Property Saviour buy at 70% of market value, we’re transparent about exactly why: 2% legal costs, 3% holding costs, 5% stamp duty, 5% resale costs, 15% profit before tax. That’s our 30%. You know exactly what you’re getting and why.
With part exchange, you’re getting 85% to 90% of value but you don’t see the breakdown. And here’s the sneaky bit: they’re making up the difference by inflating the new build price by another 10% to 20%.
You’re getting hit twice. Below market value on your sale. Above market value on your purchase.
Let’s do the maths properly:
Your property’s real value: £200,000
Part exchange offer (85%): £170,000
Your loss on sale: £30,000
Equivalent older property value: £280,000
New build price from developer: £320,000
Your overpayment on purchase: £40,000
Total financial penalty: £70,000
Seventy grand to avoid estate agent viewings and chains.
Is that convenience really worth it?
Here’s another massive restriction nobody mentions clearly upfront.
Part exchange only works when buying that specific developer’s new builds. You can’t use it to buy an older property. You can’t use it with a different developer. You’re locked into their available plots, their locations, their designs, their prices.
No negotiating power. No alternatives. Take what they’re offering or walk away.
And new builds come with their own problems. They’re typically 10% to 20% more expensive than equivalent older properties in the same area. The rooms are smaller (developers maximise profit per square foot). Build quality can be questionable (search “new build snagging issues” sometime). They depreciate faster than older properties in the first five years.
Plus you get hit with service charges, management fees, and all sorts of ongoing costs that older properties don’t have.
When you sell to Property Saviour, you get your money and you’re done. Buy whatever you want next. Older property with character and proper room sizes? Go for it. Different area entirely? Your choice. Negotiate hard on your next purchase? Absolutely.
Part exchange customers have zero flexibility. They’re captive buyers paying premium prices because they have no alternatives.
Let’s talk about new build pricing because this is where the real pain happens.
New builds cost 10% to 20% more than equivalent older properties. That’s not opinion, that’s market data. A three bedroom new build priced at £300,000 might sit next to a four year old property selling for £250,000 with bigger rooms and a mature garden.
Why the premium? Because developers can charge it. They’ve got marketing budgets, show homes, sales people, incentives to offer, part exchange schemes to fund, and shareholder profits to generate.
You’re paying for all of that.
So you’ve already lost £30,000 on your sale through the below market part exchange offer. Now you’re overpaying £30,000 to £60,000 on your purchase because new builds command premium pricing.
Combined penalty: £60,000 to £90,000.
And here’s the worst bit: your new build will likely be worth less than you paid for it within two years. Lenders know this. They value new builds conservatively, often 5% to 10% below purchase price. You could be in negative equity before you’ve even unpacked.
Throughout the entire part exchange process, the developer controls everything and you control nothing.
They choose the valuer. They set the offer. They determine eligibility. They control completion dates. They decide when your property gets marketed. They select the estate agents who show people round your home whilst you’re still living there.
You pay reservation fees (usually £500 to £1,000) that you’ll lose if you change your mind. You pay 10% deposits on the new build. You’re contractually committed whilst the developer retains all the flexibility.
If their new build isn’t ready on time, your completion gets delayed. You’re paying your old mortgage plus potentially temporary accommodation. They face no penalties for delay.
If they find buyers for your old property quickly, great. If they don’t, you’re stuck in limbo. If they decide to reduce the asking price on your old property to shift it faster, they just do it. You get no say.
And throughout all this, you’re living in your property whilst estate agents bring viewers through. Your evenings and weekends disrupted. Your home needs to be immaculate for viewings you didn’t agree to at times you didn’t choose.
It’s all the stress of selling through estate agents combined with zero control over any aspect of the process.
Here’s a problem that catches people after they’ve committed: mortgage lending on new builds is tighter than older properties.
Lenders know new builds depreciate quickly. They value them conservatively, often 5% to 10% below the developer’s asking price.
You’re buying at £300,000. The lender values it at £270,000 to £285,000. You need a bigger deposit to make up the difference. If you’re using part exchange, you might not have enough equity after the developer’s below market offer to cover this gap.
Some buyers end up needing to add cash they don’t have just to complete the purchase. Others discover they can’t get the mortgage at all and lose their deposit and reservation fee.
And if you need to sell within five years, you’re likely facing negative equity. That shiny new build you overpaid for is now worth less than you paid, and certainly less than your outstanding mortgage.
We’ve heard from people stuck in new builds they hate, unable to sell without bringing tens of thousands to the table just to clear the mortgage.
Let’s do an honest comparison of your options:
| Method | Timeline | Cost | Property Choice | Control | Restrictions |
|---|---|---|---|---|---|
| Estate Agent | 4 to 7 months | 1.5% to 3% fees (£4,500+) | Any property, any location | Some | Chain risks, viewings, uncertainty |
| Part Exchange | 4 to 6 weeks | 10% to 20% penalty (£30,000+) | Only that developer’s new builds | None | Severe eligibility criteria, locked in |
| Property Auction | 8 to 12 weeks | Entry fees (£600 to £1,800+) | Any property if it sells | None | High failure rate, wasted costs |
| Property Saviour | 7 to 28 days (you choose) | Transparent 70% offer | Any property, any location | Complete | None |
Estate agents take forever and might not sell your property at all. About half of listings fail to complete. You’re doing viewings for months, living in uncertainty, at risk of chain collapses.
Part exchange sounds quick but costs you £40,000 to £80,000 between below value offers and inflated new build pricing. Plus severe restrictions mean 90% of enquirers get rejected anyway.
Auctions seem certain until yours doesn’t reach reserve and you’ve wasted £2,000 to £3,000 on fees for nothing. About 30% to 40% of properties genuinely fail to sell under the hammer despite what auctioneers claim.
Property Saviour gives you completion in 7 to 28 days, you choose the exact date. Transparent 70% offer with no hidden penalties. Complete freedom to buy whatever you want next. No eligibility restrictions. No forced purchases.
Look, we’re being honest here. For about 5% of people, part exchange might work. Might.
If you absolutely must move within 6 weeks. If you’re desperate for that specific new build plot and nothing else will do. If you’re happy to lose £40,000+ for convenience. If your mortgage situation is so unusual that only part exchange structure works.
But here’s the thing: if speed is what you need, Property Saviour offers 7 to 28 day completion. Similar speed without the £40,000 penalty or any restrictions on what you buy next.
If you love that specific new build, sell to us, get your money in three weeks, then buy the new build as a normal cash buyer with full negotiating power. You’ll probably save £20,000 by not using part exchange.
If your mortgage is complicated, sort it out properly rather than using part exchange as a sticking plaster that costs you tens of thousands.
For 95% of people reading this, part exchange is developer convenience disguised as buyer convenience. It benefits them, not you.
Helen from Liversedge got excited about a new build development near her daughter’s school. The developer offered part exchange. It sounded perfect.
They valued her property at £185,000. She knew it was worth £220,000 because three estate agents had told her so. But she thought, “Well, £35,000 loss for convenience and speed, maybe it’s worth it.”
Then she looked at equivalent older properties in the same area. Three bedroom houses with bigger gardens were selling for £240,000 to £260,000. The developer’s new build was priced at £315,000.
She did the maths. Lost £35,000 on her sale. Overpaid £55,000 to £75,000 on her purchase. Total penalty: £90,000 to £110,000 for a smaller property with a tiny garden.
She contacted us instead. We offered 70% of her property’s realistic £220,000 value: £154,000. She completed in 18 days. She bought a four year old property in the same area for £255,000 with a proper garden and bigger rooms.
Final comparison: Part exchange would have cost her £90,000+ in penalties for a smaller new build. Our method gave her a better property, more space, mature garden, and she was done in under three weeks.
She saved over £60,000 by avoiding part exchange.
We’re going to be completely straight with you about why we’re better than part exchange schemes.
Similar speed, no restrictions: Part exchange takes 4 to 6 weeks. We complete in 7 to 28 days and you choose the exact date. But we don’t lock you into buying anything from anyone.
Transparent pricing: We buy at 70% of realistic market value. Here’s exactly why: 2% legal costs (solicitors, searches, Land Registry), 3% holding costs (insurance, council tax, utilities, maintenance), 5% stamp duty (we pay this to the government), 5% resale costs (estate agents and solicitors when we sell it on), 15% gross profit before tax. That’s our 30%. You see the full breakdown.
Part exchange offers 85% to 90% but hides the other 10% to 20% penalty in inflated new build pricing. The net result? You’re getting similar money but locked into overpriced new builds.
Complete freedom: Sell to us, get your money, buy whatever you want. Older property with character? Go for it. Different location? Your choice. Negotiate hard? Absolutely.
Part exchange locks you into that developer’s new builds only. Premium pricing. No negotiation. No alternatives.
No eligibility restrictions: We don’t care if your property is worth 65% or 175% of what you’re buying next. We don’t care about condition (we’ve bought properties needing complete renovation). We don’t care about leasehold terms, ex-local authority status, or geographical location.
Part exchange rejects 90% of enquirers due to brutal restrictions nobody mentions upfront.
Your solicitor, not theirs: You choose your own solicitor. We contribute minimum £1,500 to your legal fees. No pressure to use anyone we recommend.
Part exchange schemes often push you toward specific solicitors who prioritise the developer’s interests.
Price doesn’t change: The offer we give you is the offer you get. No reductions three weeks in. No manufactured problems. No “circumstances have changed.”
The number stays the same from start to finish.
Let’s break down the difference properly because this matters.
Your property’s market value: £200,000
Our offer (70%): £140,000
Our costs:
Total: £60,000 (our 30%)
You receive: £140,000
You’re free to buy whatever you want next
Your property’s market value: £200,000
Their offer (85%): £170,000
Your loss on sale: £30,000
Equivalent older property value: £280,000
Their new build price: £320,000
Your overpayment on purchase: £40,000
Combined penalty: £70,000
You’re locked into that overpriced new build with no alternatives
Now, our 70% offer looks like less (£140,000 versus £170,000). But when you factor in the £40,000 overpayment on the new build purchase, plus the restrictions and lock-in, which method of sale gives you better actual value?
With us, you’re getting £140,000 and complete freedom. You could buy a £250,000 older property that’s better than the developer’s £320,000 new build.
Net position with us: £250,000 property, paid £110,000 from other funds
Net position with part exchange: £320,000 new build (actually worth £280,000), paid £150,000 from other funds
You’re £40,000 better off using us even though our initial offer is £30,000 lower.
That’s what transparency and freedom are worth.
Right, let’s address all your options honestly.
Estate agents take 4 to 7 months on average, charge 1.5% to 3% in fees (£3,000 to £6,000 on a £200,000 property), and about half of all listings fail to complete. You’re doing viewings every week, living in uncertainty, at risk of chain collapses that waste months of your life.
Plus you’re paying for that property all those months: mortgage, insurance, council tax, utilities, maintenance, garden upkeep. Another £400 to £600 monthly. Over six months that’s £2,400 to £3,600 in holding costs.
If you get a sale, brilliant. If you don’t, you’ve wasted half a year and thousands of pounds.
Property auctions seem like a good idea until your property doesn’t reach reserve. You’ve paid entry fees of £600 to £1,800, legal pack preparation of £500 to £1,200, and all the marketing costs. If it doesn’t sell (happens to about 30% to 40% genuinely), you’ve lost £2,000 to £3,000 for nothing.
Plus auctions pressure you to accept whatever the highest bid is, even if it’s below what your property’s actually worth. And you’re on a fixed completion timeline whether that suits you or not.
Part exchange sounds convenient but costs £40,000 to £80,000 through below market offers combined with inflated new build pricing. Strict eligibility criteria reject 90% of enquirers. You’re locked into overpriced new builds with zero negotiating power and no property choice flexibility.
Property Saviour completes in 7 to 28 days (you choose), offers transparent 70% pricing with full breakdown, gives you complete freedom on what you buy next, has no eligibility restrictions, and never reduces offers after agreement.
Which method of sale actually serves your interests?
Before you accept any cash buyer offer (including ours), spend five minutes doing this check.
Go to Companies House website. Search the company name. You can access basic information for free or get detailed reports.
Look at three things:
Charges registered against the company. Multiple charges mean heavy borrowing. If they’ve got dozens of charges, they’re not cash buyers despite the marketing. They need investor approval for every purchase. That’s slow and uncertain.
Director history. Trail of dissolved companies? Massive red flag. These buyers close companies when complaints mount, then open new ones with slightly different names. Same people, different company name. Patterns don’t lie.
Recent accounts. Look at cash reserves versus liabilities. No money in the bank? They can’t complete quickly regardless of promises.
When you check Property Saviour, you’ll see minimal charges, clean director history, and actual cash available. The evidence backs up what we’re saying.
Do this for any cash buyer. Five minutes. Protects you from liar buyers who hook you with big offers then reduce them three weeks in or can’t complete at all.
Do this exercise before committing to part exchange or any method of sale:
Most people who do this honestly discover part exchange costs them £50,000 to £80,000 more than alternatives once all factors are included.
People make these errors repeatedly because developers don’t advertise the downsides:
Between £40,000 and £80,000 on typical transactions. You lose 10% to 20% on your sale (£20,000 to £40,000 on a £200,000 property). You overpay 10% to 20% on an inflated new build (£30,000 to £60,000 on a £300,000 new build). Combined penalty: £50,000 to £100,000 compared to proper sale and purchase of equivalent older property.
Because it’s brilliant for developers. They acquire your property below market value. They sell you an overpriced new build. They control the entire process. They make profit on both transactions. It’s genius for them, terrible for you.
No. Developers set fixed percentages (typically 85% to 90% of market value) and won’t move. Unlike normal property sales where you can negotiate with multiple buyers, part exchange offers are take it or leave it. Zero flexibility. Zero negotiating power.
Run the numbers yourself. Part exchange offers 85% to 90% but locks you into new builds priced 10% to 20% above market. We offer 70% but you’re free to buy older properties priced 10% to 20% below equivalent new builds. The net result? You’re often better off with us, plus you get complete freedom and transparency.
Sell to us, get your money in three weeks, then buy the new build as a normal cash buyer. You’ll have negotiating power the developer’s part exchange customers don’t have. You might save £15,000 to £30,000 by not being a captive buyer.
Here’s what it comes down to.
Part exchange is developer convenience marketed as buyer convenience. It benefits them massively. It costs you tens of thousands of pounds. It locks you into overpriced new builds with no alternatives. It rejects 90% of people due to brutal eligibility criteria.
For the tiny minority who qualify and proceed, they lose £50,000 to £80,000 compared to proper transactions. They get smaller properties with inflated service charges and questionable build quality. They face potential negative equity within two years.
And they call this “convenient.”
If you need speed and certainty, that’s what we provide. Seven to 28 days completion. Transparent 70% offer. Complete freedom on what you buy next. No eligibility restrictions. No forced purchases. No developer control.
You get similar speed to part exchange without the financial penalties or restrictions.
That’s the difference between a method of sale that benefits the company offering it versus one that provides genuine value to sellers who prioritise speed and certainty.
If you’re researching part exchange because you need to move quickly, you’ve got better options.
Request a callback from us. Costs nothing.
We’ll give you a genuine offer within 24 hours. Not an estimate. An actual offer on your specific property.
No obligation. No pressure. No games where we reduce it three weeks later like liar cash buyers do.
Take our offer and compare it to the part exchange scheme. But do the full maths. Don’t just compare the percentages. Calculate what you’ll actually pay for the new build versus equivalent older properties. Factor in the restrictions and lock-in.
Then decide which method of sale delivers better actual value for your situation.
Some people take our offer. They’re usually people who’ve run the numbers and discovered part exchange costs them £40,000+ more than they realised. Or they value freedom to choose their next property over being locked into developer new builds.
Some stick with part exchange. They’re usually people who haven’t done the maths properly yet or who are so set on that specific new build plot they’re willing to lose tens of thousands for it.
Both choices are yours to make.
We’re here to give you a transparent alternative so at least you’re deciding with full information instead of discovering six months in that part exchange cost you £70,000 you didn’t need to lose.
Request your callback now. Completely free. We’ll call you back within a few hours.
We’ll discuss your property, give you a genuine offer with full breakdown of how we got to that number, and answer any questions you’ve got.
If you want to proceed, brilliant. We’ll coordinate with your solicitor (your choice, not ours), complete on whatever date works for you (7 to 28 days), and transfer your funds. You’re free to buy whatever property you want next with full negotiating power.
If you don’t want to proceed, that’s fine too. At least you’ll know all your options instead of discovering after accepting part exchange that you’ve lost £50,000+ through below value offers and inflated new build pricing nobody explained properly upfront.
The conversation costs nothing. The information might save you fifty grand.
And if you decide part exchange is right for you despite the costs, at least you’ll go in knowing exactly what you’re losing and why, not discovering it six months later when you’re locked in and it’s too late to back out.
That’s worth a free phone call, isn’t it?
Whether you’re facing a tricky sale, navigating probate, or simply looking to sell fast without hassle, you’re in the right place. Our blog is packed with practical advice, expert insights, and real-life tips to help homeowners, landlords, and executors across England, Scotland and Wales make informed decisions — whatever the condition of their property.
