The State Will Pay €4,000 For Your Windows. Your House May Not Be Allowed Them

A period sash window. Photo: Steffen Lemmerzahl / Unsplash.

In March, the State started paying €4,000 towards new windows for the first time. If your house is a Protected Structure, that grant may be the least useful money ever offered to you.

This is the bind at the centre of Irish home improvement in 2026: the grants got much bigger, and the buildings that need them most are the ones least able to take them.

What changed in 2026

On 27 January the Government published the National Residential Retrofit Plan 2026, and the grant rates went up in two waves — attic, cavity wall and heat pump on 3 February, then the new windows and doors grants on 2 March, along with an enhanced attic rate for first-time buyers and welfare recipients, and a “second wall” measure.

That last one is quietly significant: if you already took a wall insulation grant years ago, you can now apply again for a second wall measure.

Attic insulation is €2,000, or €2,500 for first-time buyers and people on qualifying payments. Heating controls are €700. Solar PV is €1,800, solar water heating €1,200.

The country noticed

The 2026 target is 73,000 upgrades, against a Budget 2026 allocation of €640 million.

If you are on the free scheme, bring a book

The Warmer Homes Scheme is fully funded — no contribution at all — for people on qualifying payments including Fuel Allowance, Working Family Payment, One-Parent Family Payment, Domiciliary Care Allowance and Carer’s Allowance. The property must have been built and occupied before 2006.

It is also, by SEAI’s own published estimate, up to 24 months from application to completed works. The pre-works BER can take up to twelve months on its own; the home survey up to fourteen.

There is one useful change for 2026. Applicants can now take separate individual grants — up to €2,300 for wall insulation, up to €2,500 for attic — while keeping their place in the Warmer Homes queue. If you are two years out, you no longer have to choose between waiting and doing something.

And then there is the other kind of house

None of the above assumes your house is protected. If it is, the rules change completely.

A Protected Structure is one your local authority considers of special interest and has entered on the Record of Protected Structures. What most people do not realise is how far the protection reaches: it covers the interior, the land within the curtilage, outbuildings, other structures on that land, and — in the wording used by Citizens Information — “all interior and exterior fixtures and features”.

The ordinary exemptions fall away. As Citizens Information puts it, “even work like painting the interior or replacing windows could affect its character and need planning permission”.

The free letter that settles it

This is the single most useful thing in this article, and almost nobody uses it.

You can ask your local authority for a Section 57 declaration — a written statement of which works would, and would not, materially affect the character of your protected structure. The authority must respond within twelve weeks. There is no fee.

Before you commission drawings, before you order windows, before you agree a price with a contractor: ask for the declaration. Twelve weeks is nothing against the alternative. The maximum penalties under the Planning and Development Act 2000 run to fines of up to €12.7 million and up to two years’ imprisonment on indictment.

In a conservation area, the inside is yours

An Architectural Conservation Area works differently. It protects a group of buildings collectively rather than listing each one, and the restriction bites on the outside only.

Article 9(1)(a)(xii) of the Planning and Development Regulations removes exempted-development status from works to the exterior of a structure in an ACA where the development would materially affect the character of the area.

In practice: render, windows, doors, roof covering, rooflights, external insulation and satellite dishes are the flashpoints, because every one of them is an exterior work capable of changing how the street reads. The inside is generally yours.

Which brings us back to the money

Look at the two lists side by side and the problem is obvious. The two biggest new grants — €4,000 for windows and €8,000 for wall insulation — are precisely the measures most likely to be restricted or refused on a protected structure or in an ACA. External wall insulation changes the elevation. uPVC replacements for historic sash windows are routinely resisted.

There is a grant designed for exactly this gap, and it is the one to apply for first.

It is Stream 1 of the Historic Structures Fund, it goes through your local authority, and professional fees for the sketch reuse proposal are capped at €615. It exists because the State knows the retrofit money and the conservation rules collide, and somebody has to pay for the report that reconciles them.

The wider heritage money

Two other funds are worth knowing. The Built Heritage Investment Scheme allocated €8.1 million across 696 projects in 2026, with individual grants from €2,500 to €50,000, administered by local authorities. The Historic Structures Fund awarded €4.42 million to 40 projects in 2026 — €200,000 to the Ambassador Theatre in Dublin, €170,000 to Áras na nGael in Galway, €115,000 to Dingle Courthouse. Its 2027 round is open, as a single stream of €50,000 to €200,000 for larger projects.