Off-Plan vs Resale Property in Spain (2026): Deposits, Bank Guarantees, Timelines, Risks

Off-plan in Spain means buying directly from a developer before or during construction. Resale means buying any property after its first transmission. The two routes differ on five things that matter: tax (11.5% vs 10% in Valencia and the Costa Blanca), payment timeline (phased over 18–36 months vs one transaction in 60–90 days), legal protections (10-year LOE warranty plus mandatory bank guarantee for off-plan, vs no warranty for resale), customisation, and risk profile. Below is the full 2026 comparison with three worked examples.

The headline difference

Almost every foreign buyer in Spain ends up choosing between two products that look similar from the outside but are completely different transactions underneath:

• Off-plan (obra nueva / sobre plano): you buy from a developer before, during, or shortly after construction. You pay in instalments over 18–36 months. The property doesn’t exist yet — or doesn’t exist complete yet — when you sign.
• Resale (segunda mano): you buy from a previous owner. The property already exists, has a history, and has had at least one transmission before yours. Payment is one transaction, typically completed 60–90 days after the initial deposit.

The same physical building can be one or the other depending on its transmission history. A two-year-old apartment that was never lived in but was sold by the developer to an intermediary becomes resale on its second transmission to you, with all the resale tax consequences. The legal definition is about the transmission chain, not the building’s age.

Tax — the 1.5% gap in Valencia and the Costa Blanca

If you’ve read our cost-of-buying breakdown, you know transfer tax is the single biggest line in any Spanish purchase. It is also where the off-plan / resale choice has its sharpest financial difference.

	Off-plan (new build)	Resale
Transfer tax	IVA 10% + AJD 1.5% = 11.5%	ITP 10%
Notary	~0.15–0.30%	~0.15–0.30%
Land Registry	~0.10–0.20%	~0.10–0.20%
Legal (independent abogado)	1% + 21% IVA	1% + 21% IVA
Total closing costs	~12.5–14%	~11–12.5%

The headline is a 1.5% tax disadvantage for off-plan in Valencia and the Costa Blanca. On a €600,000 purchase, that’s €9,000 more for off-plan. That’s a real cost — but it’s also the wrong place to start the decision, because the tax gap is the smallest factor compared to everything that follows.

Payment structure — the cash-flow difference

Resale is one transaction. Off-plan is four to six payments stretched over the build.

Resale payment timeline

1. Reservation (optional): €3,000–€10,000 to take the property off market for 2–4 weeks while due diligence runs. Refundable per the reservation contract.
2. Arras / private contract: 10% of the agreed price, paid on signing the private purchase contract (contrato de arras). Sets a completion deadline, usually 60–90 days out.
3. Completion at the notary (escritura pública): remainder of the price + taxes + fees, paid in cleared funds (bank cheque or bank transfer). Keys handed over the same day.

From first signature to keys: typically 60–90 days. If a mortgage is involved, allow 90–120 days from offer acceptance to keys.

Off-plan payment timeline

1. Reservation: €3,000–€10,000 to hold the unit. Should be refundable until the private contract is signed.
2. Private contract (contrato privado de compraventa): 10–30% of price, paid within 2–4 weeks of reservation. This is the moment when the bank guarantee or insurance must be in place.
3. Phased payments during construction: 20–60% of price split into milestone payments (foundations, structure, façade, finishes). Each instalment must also be covered by the same guarantee.
4. Completion at the notary: remainder + taxes + fees. Mortgage signed here if financing.

From private contract to keys: typically 18–36 months. If the development hasn’t started yet (pure pre-construction), allow 30–48 months.

Bank guarantees — the legal protection people miss

This is the single most important thing for any foreign buyer of off-plan property in Spain. Skip it and you have a sales contract with a developer; honour it and you have a contract with a bank behind it.

What the law says

Under Ley 20/2015 (which modernised the earlier Ley 57/1968), every payment made by a buyer to a developer for an off-plan property — from the very first euro after the private contract — must be guaranteed either by:

• Aval bancario: a bank guarantee issued by a Spanish bank, naming the buyer as beneficiary, covering the specific amounts paid; or
• Seguro de caución: a surety insurance policy from a Spanish insurer, doing the same.

The guarantee must cover the full amount paid plus interest at the legal rate (currently 6% per year on amounts paid). If the developer fails to deliver the property in the contractually agreed timeframe — or goes bankrupt — the buyer claims back from the bank or insurer, not from the developer.

How to verify the guarantee is real

1. The contract must reference the guarantee specifically — bank name, policy number, beneficiary.
2. You must receive a physical copy of the guarantee certificate within days of each payment.
3. The guarantee must be in your name, not a generic policy for the whole development.
4. It must cover the full amount paid plus legal interest, not a token sum.

If a developer is reluctant to issue the guarantee, walk away. The honest ones treat it as routine because they know it’s law. The dishonest ones treat it as friction. Every off-plan disaster of the 2008–2014 crisis in Spain came from one of two failures: buyers who didn’t have a guarantee, or buyers who had a guarantee on paper but never verified it.

LOE warranty — the silent benefit of new build

Under the Ley de Ordenación de la Edificación (Ley 38/1999, LOE), every new build in Spain comes with three layered warranties, all running from the date of completion of the construction (not the date of your purchase):

Cover	Period	What it covers
Structural	10 years	Defects affecting structural stability — foundations, load-bearing walls, beams, slabs
Habitability	3 years	Defects compromising habitability — humidity, insulation, soundproofing, waterproofing failures
Finishing	1 year	Cosmetic and finishing defects — paint, tiling, doors, fixtures

These warranties are backed by mandatory insurance the developer must hold for the 10-year structural cover (seguro decenal). Resale property carries no such warranty from the seller — beyond the basic civil-code protection against undisclosed major defects, which is far weaker in practice.

This means a four-year-old new build still has 6 years of structural cover, 0 years of habitability cover, and 0 years of finishing cover. A first-transmission off-plan today carries the full 10/3/1.

Off-plan — benefits and risks

Why off-plan can be the right choice

• Phased cash flow. You stage payments over 18–36 months instead of all in one go. Useful if you’re financing privately or if your liquidity is unlocking over time (a planned sale, a vesting, a relocation timeline).
• Modern building code. Every new build complies with the current CTE (Código Técnico de la Edificación) — far stricter on insulation, sound, accessibility, water saving, and energy than anything pre-2007. Energy certificates A or B are common.
• Customisation. Tiles, kitchens, bathrooms, sometimes layouts — usually agreed during construction at developer cost rates, not retail rates.
• 10-year structural warranty. Backed by mandatory insurance, not the developer’s solvency.
• Capital appreciation during build. In rising markets, off-plan prices set at the contract date often appreciate 5–15% by delivery. Not guaranteed — but historically true in strong Valencia and Costa Blanca cycles.
• No prior history. No previous owners, no community arrears, no hidden renovations.

Where off-plan goes wrong

• Delays. 3–12 month slippage is normal. Material delays (12+ months) are not uncommon for smaller developers. Your contract should include a delay penalty clause and a hard exit right.
• Spec drift. The brochure showed Italian taps and oak parquet; delivery has Spanish taps and laminate. The memoria de calidades attached to the contract is the only thing that binds — read it line by line.
• Final price drift. Watch for “from €X” headline pricing. Final price depends on unit choice, orientation, floor, and options. Confirm the exact final number in writing before paying anything beyond reservation.
• Currency exposure. If you earn in GBP, USD, or another non-euro currency, an 18–36 month build means real FX exposure on €300K–€600K of remaining payments. Worth a conversation with a currency specialist (Wise, Currencies Direct) about forward contracts.
• Mortgage approval at completion. You sign the mortgage when the property is ready, not when you commit to buy. If your income or rates change adversely in 24 months, your loan may differ from what was indicative at reservation.
• Snagging at handover. Take a snagging professional (~€400–€700) to the pre-handover walkthrough. Issues recorded then are fixed at developer cost; issues recorded after handover are arguments.
• Developer track record. A first-time developer building their first project is structurally riskier than an established firm with 10 completed developments. Verify previous work — visit completed projects, talk to owners.

Resale — benefits and risks

Why resale is often the right choice

• You see what you buy. Walls, light, noise, smells, neighbours, distance to the bakery — all known. Off-plan asks you to commit on renderings.
• Speed. 60–90 days from arras to keys. Critical if you’re relocating, if children’s schooling has a deadline, or if you simply want to be in Spain by next summer.
• Lower tax in Valencia and the Costa Blanca. 10% ITP vs 11.5% IVA + AJD. €1,500 saved per €100K of price.
• Better central locations. Most premium central districts in Valencia (Eixample, Pla del Real, Sant Francesc, El Cabanyal, Ruzafa) have almost no off-plan available — the buildable land is gone. The same applies in central Altea, central Jávea Port, central Dénia.
• Established community. The comunidad is operating, the fees are known, the reserve fund is real or it isn’t. Off-plan communities start from zero and reserve funds build slowly.
• More room to negotiate. Most resale prices are negotiable 3–10% from list. Off-plan price lists are mostly fixed.
• Mature exterior. Trees, gardens, established mediterranean planting, weathered local stone. Most new build comes with planted-yesterday landscaping that takes 5–10 years to settle in.

Where resale goes wrong

• Hidden structural issues. Older buildings, especially 1960s–1980s coastal blocks, can carry concrete carbonation, reinforcement corrosion, balcony issues. A pre-purchase technical inspection (~€500–€1,200) is the cheapest insurance you’ll ever buy.
• Undisclosed debts. Unpaid IBI, community arrears, mortgages, embargoes. A clean nota simple from the Registry plus a community debts certificate is non-negotiable due diligence.
• Licence irregularities. Especially in rural Costa Blanca: extensions, pools, basements, terrace closures built without permits. These can be hard to legalise and can affect future sale.
• Energy efficiency. A 1970s apartment with single glazing and no insulation runs €1,500–€3,000/year more in utilities than a new build of the same size. Energy cert F or G properties also face increasing rental restrictions.
• Aging systems. Older electrics, plumbing, heating, lifts — all replacement candidates. Read the community accounts for upcoming derramas.
• No warranty. What you see is what you get. Civil-code claims against the seller for hidden defects (vicios ocultos) exist in theory but are slow and uncertain in practice.

Three worked comparisons

Comparison 1 — Same buyer, €600,000 in Valencia city

	Off-plan (Patacona / Alboraya new build)	Resale (Eixample 1960s reform)
Price	€600,000	€600,000
Transfer tax	€69,000 (11.5%)	€60,000 (10%)
Other closing costs	~€13,000	~€13,000
Total at completion	~€682,000	~€673,000
Time to keys	~24 months	~75 days
Energy certificate	A or B	typically E–G
Annual utility difference	baseline	~€1,500–€2,500 higher
Customisation	significant	renovation needed (~€80K–€150K)
Risk profile	delay / spec / FX	structural / licence / community

Headline: off-plan is €9,000 more in tax but typically €1,500–€2,500/year cheaper to run. Break-even on the tax delta is around 4–6 years of ownership. The actual question is timeline — can you wait two years to live in it?

Comparison 2 — €850,000 villa on the Costa Blanca

	Off-plan (Cumbre del Sol new villa)	Resale (Altea 2008 villa with pool)
Price	€850,000	€850,000
Transfer tax	€97,750 (11.5%)	€85,000 (10%)
Other closing costs	~€18,000	~€18,000
Total at completion	~€965,750	~€953,000
Time to keys	~30 months	~75 days
LOE warranty	10/3/1 full	0/0/0 remaining
Garden	just planted	15+ years mature
Pool	new, modern equipment	functional, may need refit in 5–10 years

Headline: a 30-month-newer asset for ~€13,000 more in tax, with full LOE warranty and modern build. The mature villa wins on character and immediate availability; the off-plan wins on systems and warranty. Both are defensible — depends on what you’re actually buying for.

Comparison 3 — Relocating family, 12-month timeline

A family relocating to Valencia in 12 months for the September school year cannot wait for off-plan in most cases. A 24-month build with 3–6 month delay risk means moving in 27–30 months from contract — past the school deadline, past the visa timeline, past the point where the move makes sense.

For this profile, resale is almost always the right answer. The 1.5% tax saving is a footnote; the 18+ month delivery saving is the actual deciding factor.

Decision framework

Five questions, in this order:

1. When do you need to live in it? If within 12 months — resale. If 24+ months — either works. If 36+ months — off-plan only if pre-construction with strong developer.
2. What’s your cash flow profile? If liquidity is unlocking over time, off-plan’s phased payments help. If you have the full amount today, the tax saving on resale matters more.
3. How much customisation matters? If significant — off-plan, or resale that you intend to renovate substantially. If “move in tomorrow” — established resale, ideally recently renovated.
4. How much do warranties matter? If buying for a long-term hold (10+ years), LOE warranty has real value. If buying for short-term resale (3–5 years), less so.
5. Where do you want to live? Central Valencia, central Altea, central Jávea, central Dénia — almost all resale. Newer expansion districts (Patacona, Alboraya, Beniarbeig, Finestrat, the inland slopes of Polop and Benitachell) — both available, off-plan often dominant.

Off-plan pre-signing checklist

1. Licencia de obras issued by the municipality, before private contract — confirm with your lawyer.
2. Aval bancario or seguro de caución in place from the first payment after reservation, named to you, covering the full amount.
3. Memoria de calidades attached to the contract, signed page by page, listing every brand and spec.
4. Final price defined clearly — not “from €X”. Including all extras, parking, storeroom.
5. Completion date with delay penalty clause and a hard exit right after a defined delay (usually 12 months past target).
6. Developer track record — visit at least one completed project, talk to two owners. First-time developers carry extra risk regardless of contract.
7. Mortgage indicative offer obtained before private contract, not at completion. Banks should accept the development as eligible for financing.
8. FX plan if buying in a non-euro currency — forward contracts on remaining payments.

Resale pre-signing checklist

1. Nota simple from the Registry — confirms current owner, no embargoes, no undisclosed mortgages, no inheritance issues.
2. Cadastral certificate — confirms physical and legal description matches reality.
3. IBI receipts last 4 years — confirms no carry-over debt that attaches to the property.
4. Community debts certificate — issued by the comunidad administrator, confirms no community arrears.
5. Last two annual community accounts and meeting minutes — confirms financial health and reveals any pending derramas.
6. Energy certificate — legally required for sale, reveals expected utility cost class.
7. Cédula de habitabilidad / licencia de primera ocupación — confirms the property is legally habitable.
8. Building licence for any extensions, pools, terraces — especially on Costa Blanca rural properties.
9. Technical inspection (~€500–€1,200) for properties pre-2000, especially anything coastal pre-1990.
10. Tax compliance certificate from Hacienda for the seller if non-resident (avoids withholding surprises).

Common mistakes — both routes

1. Off-plan: taking the bank guarantee on faith. Read the actual certificate, confirm it names you, confirm the amount.
2. Off-plan: using the developer’s recommended lawyer. The developer’s lawyer represents the developer. Your lawyer represents you. They are different jobs.
3. Off-plan: ignoring the spec drift. Renderings are illustrative; the memoria de calidades is binding. If something matters, get it in writing.
4. Resale: skipping the technical inspection on coastal pre-1990 buildings. The €700 you save is a fraction of the €30,000+ you risk on hidden structure.
5. Resale: not pulling community minutes. A €15,000 façade derrama voted in three months before your purchase is yours to pay if you don’t catch it.
6. Both: financing the closing costs. Spanish banks lend against appraised property value, not against price + tax. Closing costs come from your own funds.

How a boutique advisor saves money here

The visible part of this decision is simple — taxes, timelines, brochures. The expensive part is everything underneath: a developer with a five-completed-project track record vs. one with two, a community with €60K reserve vs €6K, a memoria de calidades that holds vs. one written to drift, a structural inspection ordered before the arras vs. after. None of that is on Idealista.

That is the work we do. Selective by design: we represent the buyer, not the listing.

FAQ

Is off-plan or resale better in Spain?

Neither is universally better. Off-plan suits buyers with a 24–36 month timeline who value modern systems, customisation, and the 10-year structural warranty. Resale suits buyers who need to move in within 12 months, want central premium locations, or prefer to see exactly what they’re buying. The 1.5% tax gap (11.5% new build vs 10% resale in Valencia and the Costa Blanca) is real but rarely the deciding factor.

What is a bank guarantee (aval bancario) for off-plan in Spain?

Under Ley 20/2015, every payment a buyer makes to a developer before completion of construction must be guaranteed by a Spanish bank (aval bancario) or a Spanish insurer (seguro de caución). The guarantee must name the buyer, cover the full amount paid plus 6% annual legal interest, and allow the buyer to recover all paid amounts if the developer fails to deliver. Skipping this protection — or accepting a generic policy not named to you — is the single biggest off-plan risk.

What is the LOE warranty in Spain?

The Ley de Ordenación de la Edificación (Ley 38/1999) provides three layered warranties on every new build in Spain: 10 years for structural defects, 3 years for habitability defects (humidity, insulation, waterproofing), and 1 year for cosmetic and finishing defects. All run from the date of construction completion. The 10-year structural cover is backed by mandatory developer insurance (seguro decenal). Resale property carries no such warranty.

How much more tax do I pay for new build in Spain?

In the Comunidad Valenciana (Valencia city and the Costa Blanca), new build is taxed at IVA 10% + AJD 1.5% = 11.5%. Resale is taxed at ITP 10%. Net difference: 1.5% of the purchase price. On €500,000 that’s €7,500 extra for new build; on €1,000,000 it’s €15,000. Rates differ by region — Madrid AJD is 0.75%, Andalucía AJD is 1.2%.

How long does an off-plan property take to build in Spain?

With construction licence already issued and works started: 18–30 months from private contract to keys. From pure pre-construction (no licence yet): 30–48 months. Delays of 3–12 months are common. Your contract should include a delay penalty clause and an exit right after a defined material delay (typically 12 months past target).

Can I get a Spanish mortgage on an off-plan property?

Yes, but you sign the mortgage at completion (when the property is ready), not at private contract. Most off-plan developers have one or two preferred banks who have pre-approved the development for financing. You can also use your own bank. Get an indicative offer in writing before signing the private contract — your circumstances or rates may shift over the 18–36 month build, and you want to know roughly where you stand.

What happens if the developer goes bankrupt in Spain?

If your payments were properly guaranteed under Ley 20/2015 (aval bancario or seguro de caución named to you), you claim back the full amount paid plus 6% annual legal interest from the bank or insurer — not from the developer’s bankruptcy estate. This is why the guarantee is not optional. Buyers in the 2008–2014 Spanish property crisis who lost money were almost always those without a properly issued guarantee.

How long does a resale purchase take in Spain?

From signing the arras (10% deposit) to keys at the notary: typically 60–90 days. With a Spanish mortgage, allow 90–120 days from offer acceptance to keys (the FEIN 10-day cooling period adds time at the end). Pure cash purchases can complete in as little as 30 days if all paperwork is ready, though 60 days is more typical.

Can the price change between off-plan reservation and completion?

The final price must be defined in the private contract — not the reservation form. Watch for “from €X” headline pricing on showroom boards: the final number depends on unit choice, floor, orientation, parking, storeroom, and options. Anything not nailed down in the private contract can drift. Get the exact number in writing before the second payment.

Do off-plan properties in Spain include parking and storage?

It depends on the development and the contract. In most Valencia and Costa Blanca developments, a parking space is included or available as an option (€15,000–€35,000 extra), and a storeroom (trastero) is sold separately (€5,000–€12,000). Confirm in writing what’s included in the headline price, what’s optional, and what’s mandatory.

Sources and further reading

For underlying legal and regulatory references — useful for cross-checking with your own lawyer:

• Ley 38/1999, de Ordenación de la Edificación (LOE) — building act, 10/3/1 warranty framework
• Ley 20/2015, ordenación, supervisión y solvencia de las entidades aseguradoras — modernised regime for buyer payment guarantees
• Código Técnico de la Edificación (CTE) — Spanish building code, energy and construction standards
• Agencia Tributaria — IVA, ITP, AJD official guidance
• Generalitat Valenciana — Hisenda — Comunidad Valenciana ITP and AJD regional schedule
• Registradores de España — Land Registry, nota simple procedures

Where to start

The off-plan vs resale question rarely has one right answer — it has a right answer for your timeline, your cash flow, your tax residency, and where you want to live. Working that out before you start viewing properties saves months of mismatched shortlists.

Read the full cost-of-buying breakdown · Read the annual ownership costs guide · Read the Spanish mortgages guide · Get in touch.