How Much Does a Garden Renovation Cost in Ireland? (2026)

Last updated: 24 June 2026 · By Mossy Tariq, Founder — Property Blueprint Co.

A garden renovation in Ireland is priced as one number and built as a dozen. The homeowner asks what a garden costs and receives a single figure. The landscaper, meanwhile, is pricing groundworks, drainage, a sub-base, paving, decking, fencing, a retaining wall, and turf — each with its own rate, its own ground risk, and its own margin. The gap between those two views is where the budget quietly doubles.

For most Irish back gardens, the honest range for a full hard-landscaping renovation runs from roughly €8,000 to €14,000 for a standard plot, climbing past €25,000 once paving, walls, decking and a garden room are all in scope. But those headline figures hide the part that actually decides the final invoice — the cost per square metre of each element, and the groundwork beneath it that no photo ever shows.

A garden quote is not a price. It is a set of assumptions about ground you cannot see until the digging starts.

This guide breaks a garden renovation into its real cost components using current Irish rates, so the prepared homeowner can read a quote line by line instead of trusting the total. Every figure below is in euro and drawn from Irish landscaping suppliers and contractors pricing work in 2026.

What does a garden renovation actually cost in Ireland in 2026

There is no single garden renovation cost, because a garden is not a single trade. A planting-and-turf refresh of a small plot can land at €3,000 to €6,000. A full transformation of a typical suburban garden — design, groundworks, paving, fencing and turf — commonly sits in the €8,000 to €14,000 band. Add full hard landscaping with patios, retaining walls and decking and the figure runs to €25,000 and beyond, before a garden room is even discussed.

The variable that moves the number most is not the finish. It is the groundwork. Sloping sites need retaining; wet sites need drainage; sites with poor access push every tonne of spoil and aggregate up in price because it has to be moved by hand. Two identical-looking gardens can differ by 40 percent on price for reasons that are entirely below the surface. Levelling a sloped or settled plot is often the single largest of those below-surface costs, and what it runs in euro is set out in the guide to the cost to level a garden in Ireland. The same dynamic governs an indoor budget — the predictable, comparable costs sit on top, and the site-specific risk sits underneath. It is the outdoor version of the gap between a kitchen renovation cost in Ireland that prices cleanly and one that does not.

The disciplined way to budget is to price each component at its own square-metre or linear rate, add the groundworks honestly, and then total — rather than starting from a headline figure and hoping the garden fits inside it. That component-by-component build-up is what the Outdoor Renovation Blueprint planning system sets out: each element priced at its own rate, the groundworks costed as their own line, and the total assembled from the parts rather than assumed at the start.

How much does decking and patio paving cost per square metre

Paving and decking are the two largest surface costs in most Irish garden renovations, and both are priced per square metre supplied and installed. Knowing the rate by material is what lets a homeowner judge whether a quote is fair or padded.

Patio and paving in Ireland in 2026 typically runs:

• Gravel — €30 to €50 per square metre, the budget option
• Brick paving — €70 to €110 per square metre
• Concrete paving — €100 to €150 per square metre
• Porcelain paving — roughly €80 to €160 per square metre installed
• Natural stone and granite — €100 to €240 per square metre for higher-end stone and cobbles

Crucially, those rates assume a sound sub-base. Ground levelling, base installation and drainage add a further €50 to €100 per square metre on difficult sites, and labour alone accounts for €20 to €50 per square metre of the total. A quote that prices the slab cheaply and stays silent on the base is not a cheaper patio — it is a patio that will move within two winters.

Decking follows the same supplied-and-installed logic. Composite decking in Ireland runs roughly €65 to €170 per square metre installed, with entry-level boards from around €35 to €45 per square metre on materials alone, mid-range at €45 to €65, and premium boards at €65 to €90 and up. Installation adds €30 to €50 per square metre for a standard layout and €50 to €80 for complex work involving steps, hidden fasteners or balustrade. Treated timber decking sits at a comparable mid-range point on material but carries a higher long-term maintenance cost the headline price never shows. The full breakdown — timber, composite and hardwood bands, the sub-frame that hides half the quote, and the one-metre planning rule — is set out in decking cost in Ireland.

What do fencing, retaining walls and drainage cost

These three elements are where garden budgets most often run over, because they are structural rather than decorative — and structural cost is driven by the ground, not the catalogue.

Fencing in Ireland generally costs between €40 and €200 per metre supplied and installed, depending on material and ground conditions. Overlap timber panels sit at the lower end, around €35 to €60 per metre; composite and PVC fencing runs considerably higher, with composite from roughly €100 to €120 per metre. The cost driver people forget is the post foundation — a fence is only as sound as the posts concreted into the ground, and rocky or waterlogged ground raises the installation rate sharply.

Retaining walls resist no fixed catalogue price because they are engineered to the slope and soil they hold back. They are the single most site-specific cost in a garden, and on a sloping plot they can quietly become the largest single line on the quote. Any retaining structure above roughly a metre is doing real structural work and should be designed and built to carry load — the relevant guidance sits in the Technical Guidance Documents that support Part A (Structure) of the Irish Building Regulations. A retaining wall priced as if it were a garden wall is a defects list waiting to happen.

Drainage is the most under-quoted element in Irish garden renovations and the most damaging to skip. Replacing permeable lawn with impermeable paving and decking changes where rainwater goes, and surface water has to be managed on site rather than pushed onto a neighbour or into the foul sewer. Sustainable drainage — soakaways, permeable paving, falls directed to a planted area — is best practice and increasingly expected. The cost is real, but the cost of getting it wrong is a flooded patio, a damp boundary wall, or a dispute with the house next door.

This is the outdoor equivalent of the wet-area discipline that governs an indoor project. The same homeowner who reads a bathroom renovation cost in Ireland carefully enough to spot a missing waterproofing line should read a garden quote carefully enough to spot a missing drainage line.

How much does a garden room cost in Ireland

A garden room is the highest-value single element a homeowner can add, and the one most likely to be priced from a brochure rather than a brief. Irish pricing in 2026 spans a wide band: basic log-cabin structures from around €350 to €650 per square metre, fully fitted insulated garden rooms from roughly €850 to €1,500 per square metre, and bespoke high-specification rooms running €16,000 to €25,000 and beyond. A compact 10 to 12 square metre fitted room commonly starts around €12,000.

If the room you want is a glazed extension off the house rather than a standalone garden room, our guide to a sunroom vs conservatory vs orangery in Ireland compares the three on cost, BER and planning.

The figure that decides the real cost is not the structure — it is the connection. A garden room used as an office or gym needs power, data, lighting and often heating, which means a certified electrical supply run from the house. That groundwork and first-fix sits outside most headline per-square-metre prices, and it is frequently the line a homeowner discovers only after signing.

A garden room is also the element most likely to cross the line into requiring planning permission, which makes the next question the one that protects the whole budget. A glazed sunroom or conservatory attached to the house follows a different specification and planning logic again, and how much a sunroom costs in Ireland is set out in the sunroom cost guide for Ireland.

Which hard-landscaping decisions need planning permission

Much of an Irish garden renovation is exempted development under the Planning and Development Regulations 2001, which is exactly why so many homeowners assume the whole garden is. It is not, and the difference is a cost — an enforcement notice and a retrospective application are far more expensive than checking first.

The headline thresholds a prepared homeowner should know:

• A shed, garden room or similar structure to the rear is exempt only if its floor area is 25 square metres or less (a planned increase to 30 square metres has been announced but is not yet in force), it sits behind the building line, and the roof height is no more than 4 metres for a pitched roof or 3 metres for any other roof.
• The structure must not reduce the open space at the side or rear of the house to less than 25 square metres.
• Boundary walls, railings and timber fences are exempt up to 1.2 metres along a road frontage and up to 2 metres at the side or rear.

These are conditions, not guarantees — protected structures, corner sites and certain estates carry extra restrictions, and the only authoritative answer is your local authority planning office. The cost of a pre-planning enquiry is an afternoon. The cost of building first and asking later can be the structure itself. Citizens Information sets out the exemptions and their conditions in full, and it is the first document to read before a garden room or boundary wall is ordered.

Why two garden quotes for the same job differ by thousands

Because a garden quote is a set of assumptions about ground nobody has fully seen, and different contractors make different assumptions. One prices a generous sub-base and proper drainage; another prices the surface and hopes the ground holds. On paper the second is cheaper. In the second winter, it is not.

The vocabulary of an Irish building project applies just as much outdoors as in. A garden contract should define practical completion, hold retention against a documented defects list, structure payment around verifiable progress claims rather than dates, and treat every change as a priced variation agreed before the work happens. A garden priced without those terms is a garden where the final number is whatever the contractor decides it is.

The standard advice from the Society of Chartered Surveyors Ireland holds for landscaping as much as for building work: compare like for like, never accept a single quote, and read what each one excludes as carefully as what it includes. The cheapest quote is frequently the one with the most expensive exclusions, and most of those exclusions map directly onto the most common garden renovation mistakes in Ireland — the skipped drainage, the thin sub-base, the under-built retaining wall.

Where a prepared homeowner starts

A garden renovation rewards preparation more than almost any indoor project, because so much of its cost is hidden until the ground is opened. The homeowner who has priced each element, understood the groundwork beneath it, and confirmed what needs planning before quoting is the homeowner who receives comparable quotes and a final invoice close to the agreed one. Working through the garden renovation checklist for Irish homeowners before the first quote keeps every one of those decisions in the right order, and running the trades in the correct garden renovation order of trades is what stops the groundwork and drainage this guide prices from being reopened once the surface is down.

That preparation is the same discipline that runs through every phase of an indoor build. The garden is simply where the ground risk is highest and the temptation to trust a single headline number is greatest. The full sequence — from brief to practical completion — is set out in The 12 Phases of a Renovation in Ireland, and a garden runs on the same logic with its own outdoor-specific sequence. How long that sequence takes, from the first design conversation to a planted garden, is set out in the garden renovation timeline for Ireland. How this room's figure sits alongside the kitchen, bathroom and utility room in a whole-house budget is set out in the room-by-room cost guide for Ireland.

The Outdoor Renovation Blueprint is built to do the operational work inside each of those phases for an Irish garden — the decisions, the sign-offs, the drainage and structural checks, and the documents the prepared homeowner runs the project from.

If the cost baseline is the right first step, use the free Irish Renovation Cost Calculator — a trade-by-trade estimate for the specific garden, in under 5 minutes, before any landscaper has quoted.

Frequently asked questions

How much does a garden renovation cost in Ireland in 2026?

A planting-and-turf refresh of a small garden typically costs €3,000 to €6,000. A full transformation of a standard suburban garden — design, groundworks, paving, fencing and turf — commonly runs €8,000 to €14,000. Full hard landscaping with patios, retaining walls and decking pushes past €25,000, before a garden room is added. The largest variable is the groundwork beneath the surface, which can change the final figure by 40 percent on otherwise identical plots.

How much does decking cost per square metre in Ireland?

Composite decking in Ireland runs roughly €65 to €170 per square metre supplied and installed in 2026. Materials alone range from around €35 to €45 per square metre for entry-level boards up to €65 to €90 and above for premium boards, with installation adding €30 to €50 per square metre for a standard layout and €50 to €80 for complex work.

How much does a patio cost in Ireland?

Patio paving in Ireland in 2026 typically costs €30 to €50 per square metre for gravel, €70 to €110 for brick, €100 to €150 for concrete, €80 to €160 for porcelain installed, and €100 to €240 for natural stone and granite. Ground preparation and drainage add a further €50 to €100 per square metre on difficult sites. The sub-base is the cost that decides whether the patio stays level past its second winter.

Do I need planning permission for decking, a patio or a garden room in Ireland?

Patios and most rear decking are generally exempted development. A shed or garden room is exempt only if it is 25 square metres or less in floor area, sits behind the building line, is no more than 4 metres high for a pitched roof or 3 metres for any other roof, and leaves at least 25 square metres of open space at the side or rear. Boundary walls and fences are exempt up to 1.2 metres along a road and 2 metres elsewhere. Always confirm with your local authority, as protected structures and corner sites carry extra conditions.

How much does a garden room cost in Ireland?

Garden room pricing in Ireland in 2026 ranges from around €350 to €650 per square metre for a basic log-cabin structure, €850 to €1,500 per square metre for a fully fitted insulated room, and €16,000 to €25,000 and beyond for a bespoke high-specification room. A compact 10 to 12 square metre fitted room commonly starts near €12,000. The electrical supply run from the house — power, data and heating — sits outside most headline prices and should be costed separately.

Why do garden renovation quotes vary so much?

Because a garden quote is a set of assumptions about ground that has not been fully exposed. One contractor prices a proper sub-base and surface-water drainage; another prices the visible surface and assumes the ground holds. The cheaper quote is usually the one that has under-specified the groundwork, drainage or retaining structure. Compare the groundwork and exclusions line by line before comparing totals, and never accept a single quote.