Buying a site to build your own home offers design freedom and the chance to create exactly what you want. But financing land purchase in Ireland works differently to buying an existing house. Most banks won’t give you a standard mortgage for a bare site. Here’s what you need to know about land mortgages in 2026, which lenders actually offer them, and how to structure your finance from site purchase through to build completion.
What Is a Land Mortgage?
A land mortgage (also called a site mortgage) is lending secured against a plot of land you intend to purchase. It covers the cost of buying the site only — not construction costs. This differs from a self-build mortgage, which funds both site purchase and building work in staged payments as construction progresses.
Most Irish homebuyers who want to self-build need two separate financing arrangements: first, a land mortgage to buy the site; second, a self-build mortgage to fund construction. Some lenders let you convert the land mortgage to a self-build mortgage once planning permission is granted, avoiding the need to remortgage.
The challenge: banks view undeveloped land as higher risk than a completed house. There’s no rental income potential if you default, and the resale market for sites is smaller. This translates to stricter lending criteria and lower loan-to-value ratios.
Planning Permission: The Critical Factor
The single biggest factor determining whether you can mortgage a site is planning permission status.
Full planning permission: This is what lenders want. With full planning permission granted, you have legal approval to build a specific dwelling on the site. Banks view this as substantially lower risk because the land has proven development value. Most lenders who offer land mortgages require full planning permission before they’ll lend.
Outline planning permission: This confirms the site is suitable for development in principle but doesn’t approve specific building plans. A handful of lenders will consider outline permission, particularly if you can demonstrate clear intent to proceed to full planning quickly. Expect tighter LTV limits.
No planning permission: Forget mainstream banks entirely. You’ll need 100% cash or specialist bridging finance (covered below). Banks won’t mortgage agricultural land or sites with no development approval because they can’t reliably value the security.
If you’re buying a site without planning permission, your financing options are bridging loans (expensive, short-term) or saving the full amount. Once planning is secured, you can then approach lenders for a land mortgage or proceed directly to self-build finance.
Which Lenders Offer Land Mortgages in Ireland?
As of October 2026, land mortgage availability remains limited compared to standard residential mortgages.
| Lender | Land Mortgage Offered? | Planning Permission Required | Max LTV | Notes |
|---|---|---|---|---|
| Bank of Ireland | Yes | Full planning preferred | 70% | Must demonstrate build intent; conversion to self-build available |
| AIB | Limited cases only | Full planning essential | 60-70% | Stricter income multiples; not advertised widely |
| Permanent TSB | No | N/A | N/A | Focus on completed properties |
| Finance Ireland | Yes | Outline may be considered | 50-60% | Specialist lender; higher rates but more flexible |
| EBS | No | N/A | N/A | Part of AIB; similar policy |
| Ulster Bank | Exited Irish market | N/A | N/A | No longer offering new mortgages |
| ICS Mortgages | Limited | Full planning required | 60% | Small-scale lending; high documentation requirements |
Bank of Ireland is the most accessible mainstream option. They offer land mortgages at up to 70% LTV (meaning 30% deposit) when full planning permission is in place and you can show credible plans to build within a reasonable timeframe. They also facilitate conversion to a self-build mortgage once you’re ready to start construction.
AIB considers land mortgages on a case-by-case basis but doesn’t actively market them. You’ll need a strong application — stable income, significant deposit, detailed build plans. Their mortgage advisors can confirm current appetite for site lending, which varies depending on market conditions.
Finance Ireland, a non-bank lender, offers more flexibility on planning permission status but typically at lower LTV (50-60%) and higher interest rates than mainstream banks. They’re worth approaching if your site doesn’t yet have full planning or if mainstream banks decline your application.
Credit unions occasionally finance land purchases for members, particularly in rural areas where site ownership is common. Terms vary hugely between credit unions — some offer competitive rates comparable to banks, others treat it as personal lending with higher rates. Check with your local credit union if you have a strong savings history with them.
Loan-to-Value Limits and Deposit Requirements
Central Bank rules on mortgage lending don’t apply to land purchases in the same way they apply to residential mortgages. There’s no formal LTV limit for land. However, lenders impose their own much stricter ratios.
Expect to need 30-50% deposit for a land mortgage. Most lenders cap LTV at 50-70%, depending on the site’s location, planning permission status, and your financial profile.
Example: You’re buying a site for €80,000 with full planning permission. A lender offering 70% LTV would lend €56,000, requiring €24,000 deposit from you (30%). If planning permission is outline only, LTV might drop to 50%, requiring €40,000 deposit (50%).
This is significantly higher than the 10% deposit first-time buyers can access under Central Bank rules for residential property. You can’t use the Help to Buy scheme for land purchase — it only applies to new builds.
If you’re planning to self-build, budget the site deposit separately from your construction costs. Many self-builders underestimate this upfront capital requirement.
Interest Rates and Repayment Terms
Land mortgage rates are typically 0.5-1.0 percentage points higher than standard residential mortgage rates because of the additional risk banks perceive.
As of October 2026, with ECB rates falling from the 2023 peak, you might see:
- Fixed rates: 4.0-5.0% for land mortgages (compared to 3.5-4.5% for residential)
- Variable rates: 4.5-5.5% for land mortgages
Term length varies. Some lenders offer full 25-30 year terms on land mortgages if you commit to building within a set timeframe (commonly 12-18 months). Others structure them as shorter-term facilities (3-5 years) expecting you to convert to a self-build mortgage or refinance once the house is built.
Ask explicitly about:
- Conversion options: Can you roll this into a self-build mortgage without remortgaging?
- Early repayment penalties: If you refinance once the house is complete, will you face break fees?
- Interest-only periods: Some lenders offer interest-only payments while construction is underway, converting to full capital and interest repayments once you move in.
Bridging Finance for Sites Without Planning
If you’re buying a site that doesn’t yet have planning permission, bridging finance is often the only lending option. Bridging loans are short-term (typically 6-24 months), secured against the site, and designed to “bridge” you until you secure planning permission and can access mainstream land or self-build finance.
Key characteristics:
- Interest rates: 0.8-1.5% per month (roughly 10-18% annually)
- LTV: 50-70%
- Term: 6-24 months with option to extend
- Exit strategy required: You must show how you’ll repay (e.g., converting to land mortgage once planning is granted)
Specialist bridging lenders operating in Ireland include Pepper Finance, Bluestone, and various private lending firms. Costs are high — bridging finance should be last resort funding when you’re confident planning permission will be granted quickly.
Some buyers use bridging finance to purchase a site, submit for planning immediately, then refinance to a standard land mortgage within 12 months once permission is granted. This works if you have strong cash reserves to service the high monthly interest charges in the interim.
Converting Land Mortgage to Self-Build Mortgage
Once you own the site and have planning permission, most self-builders move to construction phase. This requires converting your land mortgage to a self-build mortgage, which releases funds in stages as building progresses.
How conversion works:
- You apply for a self-build mortgage with your existing lender (or a different one)
- The self-build mortgage pays off your land mortgage as part of the total loan
- Remaining funds are released in stages (foundation, first floor, roof, completion) as certified by the lender’s surveyor
- Your monthly repayments typically begin once you draw down the first stage
Example: You bought a site for €80,000 with a land mortgage of €56,000 (70% LTV). Your total self-build cost (site plus construction) is €300,000. You apply for a €270,000 self-build mortgage (90% LTV on a new build). The first drawdown pays off your €56,000 land mortgage. Subsequent drawdowns fund construction.
Advantages of converting with the same lender:
- Streamlined process — they already know your site and financial history
- May avoid some repeat documentation and valuation costs
- Potentially better rates as an existing customer
Disadvantages:
- You’re locked into one lender; may miss better rates elsewhere
- Not all land mortgage lenders offer competitive self-build products
Many borrowers shop around when converting. If another lender offers significantly better self-build rates (even 0.3% lower on a large mortgage saves thousands), it’s worth the extra paperwork to switch.
Income Requirements and Stress Testing
Lenders apply the same income multiple rules to land mortgages as residential mortgages. For non-first-time buyers, you can typically borrow up to 3.5 times gross household income. First-time buyers might stretch to 4 times income, though few first-time buyers go the self-build route immediately.
However, some lenders use stricter income multiples for land-only mortgages because there’s no immediate housing benefit — you can’t live on a site. Bank of Ireland, for instance, may apply 3.0x income rather than 3.5x for a land-only purchase.
Stress testing applies: the lender assesses whether you could still afford repayments if interest rates rose by 2 percentage points. With current rates around 4-5% for land mortgages, you need to prove affordability at 6-7%.
If you’re converting to self-build finance within 12-18 months, lenders may show more flexibility on income multiples, viewing the land mortgage as a stepping stone to a full residential mortgage with better LTV and rates.
Documentation and Application Process
Applying for a land mortgage requires:
- Proof of income (3 months payslips, P60, tax returns if self-employed)
- Bank statements (6 months)
- Site purchase contract or booking deposit receipt
- Full planning permission documents (the planning ref, decision letter, and site location map)
- Architect’s cost estimate for future build (if you’re stating intent to build)
- Proof of deposit funds (savings statements, gift letter if deposit is from family)
- Site valuation: The lender arranges this — a surveyor values the site with planning permission
Timeline is typically 4-6 weeks from application to approval, similar to a standard mortgage but potentially longer if the lender’s valuer is backlogged. Planning permission can take 3-6 months to secure, so factor this into your overall purchase timeline.
If the site is in a rural area or designated scenic/flood zone, the lender may request additional reports (engineer’s assessment of ground stability, confirmation the site is outside flood risk zones). This adds time and cost.
Tax and Legal Considerations
Stamp duty on land purchases is 7.5% for sites over 1 acre (non-residential rate applies because there’s no dwelling). For sites under 1 acre with planning permission for residential use, the residential stamp duty rate applies: currently 1% on the first €1 million, 2% on amounts above that.
Example: Site costing €100,000, 0.8 acres, full planning permission for residential house. Stamp duty: €1,000 (1% residential rate). If the site were 1.2 acres, stamp duty would be €7,500 (7.5% non-residential rate) — a significant difference.
Solicitor fees for site purchase are similar to buying a house: €1,500-€2,500 plus VAT and outlays. Ensure your solicitor checks:
- Clear title with no restrictive covenants preventing building
- Adequate right of way to the site from a public road
- No outstanding planning conditions that could derail your build
Some sites come with conditions (e.g., you must live in the dwelling for 7 years before selling). These don’t typically affect mortgage eligibility but impact your future flexibility.
Alternatives to Land Mortgages
If you can’t access a land mortgage or the LTV is too restrictive, consider:
Buying site outright, then self-build mortgage for construction: Save the full site cost, buy it with cash, then apply for a self-build mortgage to fund construction only. Some borrowers find this simpler — one mortgage application rather than converting from land to self-build. However, it requires substantial upfront capital.
Joint purchase with family: Pool resources with parents or siblings to buy the site outright, then repay their share once you secure a self-build mortgage. Ensure clear legal agreements on ownership percentages to avoid future disputes.
Personal loan for deposit shortfall: If you’re €10,000-€20,000 short on deposit, a personal loan might bridge the gap. Lenders don’t love this (it increases your debt servicing ratio), but it’s possible if your income comfortably covers both repayments. Avoid this if it pushes your total debt-to-income ratio above safe limits.
Seller finance: Rare, but occasionally landowners (especially family selling within a community) agree to vendor financing — you pay in instalments over 3-5 years. Once you’ve paid a substantial portion, you can refinance through a bank. This sidesteps the need for immediate land mortgage approval.
Common Pitfalls to Avoid
Buying without planning permission: Unless you have substantial cash reserves and are confident planning will be granted, don’t buy a site without permission. Many buyers have sites they can’t build on — planning refusals happen, especially in areas with ribbon development restrictions or flood risk.
Underestimating total project costs: Site purchase is just the start. Factor in site development (sewerage connection, ESB, water), construction costs (often €250,000-€400,000 for a modest house in 2026), professional fees (architect, engineer), and contingency (10% minimum). Running out of money mid-build is disastrous.
Ignoring site development costs: A site with no services (water, sewerage, electricity) can cost €30,000-€50,000 to connect. Some lenders include these costs in self-build mortgages, others don’t. Clarify what’s covered before you commit.
Failing to lock in conversion terms: If you take a land mortgage intending to convert to self-build finance, get written confirmation from the lender on conversion terms, rates, and timeline. Don’t assume they’ll automatically approve the self-build portion.
Choosing the wrong site location: Lenders are more cautious about rural sites in declining areas. A site in a village with good amenities will be easier to mortgage and resell than isolated rural land. Consider marketability even if you plan to live there long-term