Development Contributions & Part V

Two planning obligations, one rationale

When planning permission is granted for new housing in Ireland, two distinct financial obligations may attach to it. Both rest on the same principle: public decisions — zoning, infrastructure investment, the grant of permission itself — create land value. Some of that value should flow back to public benefit.

Development contributions (Sections 48 and 49 of the Planning and Development Act 2000) are financial charges levied on new development to fund the public infrastructure — roads, parks, drainage, community facilities, transport, school sites — needed to service that development. They are paid in cash to the local authority.

Part V (Sections 94–96 of the same Act) requires developers of residential schemes of 9+ units to transfer 20% of units to the local authority for social and affordable housing, at a price based on the existing use value of the land rather than its market value. This is an in-kind obligation, not a cash payment.

Together, they represent the two primary mechanisms by which Ireland recaptures publicly-created development value. Both are contentious. Both have evolved significantly since 2000.

Section 48: general development contributions

Legal basis

Section 48 of the Planning and Development Act 2000 (as amended) provides the primary legal framework. It enables planning authorities to attach conditions to planning permissions requiring payment of a financial contribution towards public infrastructure and facilities benefiting development in the authority’s area. C1

Key provisions:

• Scheme requirement: The basis for determining contributions must be set out in a development contribution scheme (DCS) made under Section 48. A planning authority may make one or more schemes for different parts of its area.
• Eligible infrastructure: Roads and car parks; open spaces, recreation and community facilities; sewers and flood relief works; public transport infrastructure; cycling and pedestrian facilities; broadband telecommunications infrastructure; school sites.
• Capital expenditure only: Contributions can only fund capital infrastructure, not current/operational expenditure.
• Ring-fencing: Income must be accounted for separately in the Capital account and ring-fenced for public infrastructure servicing new development.
• Calculation basis: Schemes must state the basis for calculating contributions, considering “the actual estimated cost of providing the classes of public infrastructure and facilities,” excluding benefits to existing development.
• Special contributions: Additional “special contributions” for exceptional costs can be required where specific works benefit a particular development. These must be refunded if works are not commenced within 5 years or completed within 7 years.

How schemes are adopted

The adoption of a DCS is a reserved function of elected councillors — not the Chief Executive or planning officials. This is a significant democratic accountability mechanism. Councillors determine contribution levels, the types of development to which they apply, and the expenditure of contributions received. C1

The process follows a defined sequence:

1. Preparation: The local authority executive prepares a draft scheme with proposed rates, classes of development, and infrastructure to be funded.
2. Public consultation: The draft is published with notice in local newspapers and made available for public inspection.
3. Stakeholder engagement: Submissions from developers, industry bodies (CIF, SCSI), and community groups.
4. Manager’s Report: The Chief Executive prepares a report summarising submissions and making recommendations.
5. Council adoption: Elected members must adopt the scheme within 6 weeks, with or without modifications.

Schemes typically run for 5–6 years, aligned with the development plan cycle. Under the Planning and Development Act 2024, development plans extend to 10 years. Examples of current scheme periods:

• Dublin City Council DCS 2023–2026
• Fingal County Council DCS 2026–2030 (adopted December 2025)
• South Dublin County Council DCS 2026–2028
• Cork City Council DCS 2023–2029
• Limerick City & County Council DCS 2025–2031 (adopted September 2025)
• Meath County Council DCS 2024–2029

Annual indexation

Most schemes include annual indexation provisions, typically linked to the SCSI Tender Price Index (TPI). This means rates rise annually even without a new scheme being adopted. Examples:

• Dublin City Council: 2.93% TPI increase effective 1 April 2025
• South Dublin County Council: 6.18% TPI increase applied January 2024
• DLR: 5% compound interest applied December 2024

Multiple schemes can operate concurrently within a single local authority area — a general S.48 scheme plus one or more S.49 supplementary schemes for specific infrastructure projects. C1

Section 49: supplementary contributions

Section 49 provides for Supplementary Development Contribution Schemes (SDCS) to fund specific public infrastructure projects — particularly rail, light rail, metro, new roads, surface water sewers, and schools. These are in addition to general S.48 charges. C1

Key distinctions from S.48:

• Project-specific: Tied to a named infrastructure project, not general area-wide infrastructure
• Geographically limited: Apply only to development that benefits from the named project
• No double-charging: S.49(5) prevents charging for infrastructure already covered by S.48
• Appeal right: Applicants may appeal to An Coimisiún Pleanála if they believe the infrastructure will not benefit their development
• Reduction provision: S.49(6) allows scheme amendments if infrastructure costs decrease

Notable S.49 schemes

The Metro North case illustrates an important safeguard: when the Government decided not to proceed with the original project in 2015, the NTA advised local authorities to revoke their S.49 schemes. S.49 schemes are inherently project-specific and can be unwound if projects are cancelled. C4

Contribution rates by local authority

Development contribution rates vary enormously across Ireland’s 31 local authorities — from approximately €5/sq m in some rural areas to over €134/sq m in parts of Dublin. For a standard house, levies range from ~€1,060 (Monaghan) to ~€48,983 (DLR Glenamuck, S.48 + S.49 combined). The ratio exceeds 30:1. C2

Dublin area (highest rates)

*DLR S.49 rates (Glenamuck, Cherrywood) are indexed annually by compound interest. Rates shown are as of the research date (early 2026); verify current rates directly with DLR before use.

Note: DLR charges on a per-unit basis rather than per sqm. This means a studio apartment and a large house pay the same countywide rate. For a 70 sqm apartment in Cherrywood, the effective rate is ~€433/sqm; for a 200 sqm house, ~€151/sqm. C4

Other cities

Limerick: a banded approach

Limerick City & County Council (DCS 2025–2031, adopted September 2025) uses a unique banded system that deliberately incentivises town-centre and infill development: C4

Special categories under Limerick’s scheme include renewable energy (€15,000/MW), solar farms (€7,500/MW), mining (€10,000/ha), and quarrying (€6,000/ha).

Rural authorities (lowest rates)

Visual comparison

Estimated S.48 contribution for a 110 sqm house (or per-unit rate where applicable). DLR Glenamuck includes S.49. Source: individual DCS documents, 2025/2026 rates.

National averages

• Government estimate: €12,650 per dwelling (national average including houses and apartments)
• SCSI estimate: €11,900 per unit (~3% of total delivery costs)
• Unweighted average across all schemes: €6,805 for a 200 sqm house — but this is misleading, as most development activity is concentrated in higher-rate areas

Fingal applies penalty rates for retention applications: €168.34/sqm (pre-2026) and €269.34/sqm (from 2026). DLR charges €119.84/sqm for domestic extensions. C4

National revenue & what it funds

Scale

Development contributions represent approximately 7% of local authority capital income and 3–5% of total local authority revenue (~€6 billion+ by 2022). They are solely capital and ring-fenced — they cannot subsidise general running costs. C4

Outstanding debtors

As of end-2022, total development levy debtors across all 31 local authorities stood at €306 million (gross of bad debt provisions). The top debtors:

What contributions fund

S.48 contributions are allocated across several infrastructure headings. Typical allocations include:

1. Roads and transportation — often the largest share: new roads, improvements, footpaths, cycleways, car parks, public transport
2. Parks and open spaces — public parks, playgrounds, playing fields, recreational facilities
3. Community and social facilities — libraries, community centres, sports facilities
4. Surface water drainage and flood relief
5. Schools — land acquisition for school sites (buildings are funded centrally by the Department of Education)

Since ~2014, water and wastewater infrastructure has been removed from S.48 schemes. Uisce Éireann (formerly Irish Water) now levies separate connection charges. C1

Do contributions cover actual costs?

There is limited publicly available evidence on this question. No national-level audit comparing contributions received to infrastructure costs incurred has been identified. C3

The best available data point is Cherrywood SDZ, where development contributions are projected to fund €118 million of €251 million required for public infrastructure — approximately 47%. The remainder comes from Exchequer funding. Contributions cover less than half of actual infrastructure costs in this case.

Several structural factors limit cost recovery: the timing mismatch (infrastructure must precede development), the €306m in outstanding debtors, cost escalation outpacing indexation, and the removal of water charges from S.48 scope.

The temporary waiver (2023–2024)

The most significant recent reform was a temporary waiver of S.48 development contributions for residential development, introduced in April 2023 as part of the Housing for All Action Plan. C1

Scheme details

• Coverage: All new permitted residential development commenced between 25 April 2023 and 31 December 2024, to be completed by 31 December 2026
• Scope: Section 48 contributions only — Section 49 supplementary contributions remained payable
• Eligible developments: Multi-unit schemes, self-builds, one-off rural houses, student accommodation, sheltered housing
• Excluded: Extensions, refurbishment of existing vacant/derelict properties
• Claims deadline: 28 February 2025
• Savings estimate: Up to €12,500 per home (combined levy waiver + Uisce Éireann connection charge refund); Minister cited up to €20,000 per unit

Exchequer cost

The waiver was funded by the Exchequer — the Department of Housing reimbursed local authorities for forgone contributions. The 2023 figure was modest because the scheme started mid-year and take-up was initially slow; the 2024 projection was much higher due to the full-year effect and increased uptake.

Pass-through question

Whether developers passed savings to homebuyers or absorbed them as margin is an open empirical question. No definitive Irish empirical study exists. The counter-argument is that in a supply-constrained market, cost reductions that enable marginal projects to proceed increase supply, benefiting buyers indirectly. C4

End of waiver

As of January 2025, the Government stated there are no plans to extend the waiver. Contributions have resumed for new developments. The SCSI and CIF continue to advocate for extension, including to S.49 levies. C1

Effect on housing viability

Development contributions represent approximately 4–5% of total delivery costs for a 3-bed semi-detached house in the GDA (€18,645 ex VAT out of ~€461,000 total). They are part of a wider “soft cost” burden that collectively accounts for 47% of total delivery costs nationally. C2

Cost context: 3-bed semi (GDA)

Source: SCSI Real Cost of New Housing Delivery 2023

Apartment viability

The viability impact is most acute for apartments. Total development cost for a 2-bed urban medium-rise apartment in Dublin: €523,000–€537,000 (SCSI 2025). C2

The extension of the levy waiver “resulted in a reduction of €17,500 in the GDA” per unit. But at 2.7–3.1% of total costs, levies alone do not determine viability — they contribute at the margin. Cork City halved its levy from €53.10 to €26.35/sqm, but developers said even this was insufficient to make apartment developments viable in the city centre. C2

Exemptions & reduced rates

Each local authority determines its own exemptions within its DCS. There is no nationally mandated set. Common patterns include: C2

• Part V social housing: Typically exempt from contributions
• Voluntary/community organisations: Exempt or reduced
• Non-fee-paying schools and educational facilities: Exempt
• Non-profit childcare facilities: Exempt
• Residential extensions: First 40–60 sqm typically exempt (Limerick: first 60 sqm)
• Redevelopment/change of use: Charged on net additional floor area only
• Protected structures: Conservation-related works typically exempt
• Broadband infrastructure: Exempt
• Regeneration areas: Reduced rates (e.g. Limerick Band 2 at €12.50/sqm, half the standard Band 1 rate)

The net additional floor area approach for redevelopment incentivises brownfield development over greenfield — demolition and replacement of a building of similar size generates minimal or no contribution.

International comparison: contributions

UK CIL rates (residential examples)

Ireland’s per-sqm charges in Dublin (~€117–135) are broadly comparable to UK CIL rates in London boroughs. The key structural difference is that the UK system is much larger in total scale (~£7 billion/year) and includes affordable housing obligations within S.106 — Ireland addresses affordable housing separately through Part V. Councils in England/Wales hold over £8 billion in unspent developer contributions. C2

The Netherlands uses a more integrated system (exploitatiebijdrage) where municipalities have historically played a more active role in land development. Germany’s Erschließungsbeitrag charges are based on actual infrastructure costs for each development area and are more granular than Ireland’s flat-rate approach.

Part V social housing

Part V of the Planning and Development Act 2000 is Ireland’s primary inclusionary housing mechanism. It rests on three stated objectives: C1

1. To provide an additional means of supplying social housing
2. To provide such housing at “existing use value” rather than market prices, making provision affordable for local authorities
3. To “counteract undue social segregation in housing”

Current requirements

Part V obligations arise where a planning application is made for: C1

• A development of 9 or more housing units, OR
• A development on land of more than 0.1 hectares

The developer must set aside 20% of units for social and affordable housing:

• At least 10% (half of 20%) must be social housing
• Up to 10% (the other half) may be affordable purchase and/or cost rental
• The local authority determines the exact mix, informed by its Housing Delivery Action Plan

Exemptions: Developments of 4 houses or fewer, or on land of 0.1 hectares or less, can apply for an exemption certificate. C1

Valuation: existing use value

Compensation paid by the local authority for Part V units is calculated using the existing use value (EUV) of the land — not market or development value. The relevant date is the date of the grant of planning permission. EUV excludes the benefit of planning permission, zoning, and hope value. C1

For brownfield/urban sites where existing use already has commercial or industrial value, the discount is smaller.

Transitional arrangements

The Affordable Housing Act 2021 introduced a tiered transition based on land purchase date: C1

Key date: After 31 July 2026, all planning permissions carry a mandatory 20% Part V requirement regardless of when the land was purchased.

How Part V evolved: 2000–2024

2000–2002: introduction and early buy-outs

Part V was introduced with a 20% requirement, influenced by the Kenny Report (1974) which proposed the State should acquire development land at existing use value plus 25%. The 2002 Amendment broadened compliance options to include financial contributions and serviced sites elsewhere. These “buy-out” options became the primary way developers discharged obligations during the Celtic Tiger boom. C1

An estimated €91 million was collected in cash payments in lieu of units during the boom years, undermining the social integration objectives (estimated figure; no independently verifiable primary source has been identified). C3

2015: reduction to 10%

Post-crash, the requirement was halved to 10%, applied solely to social housing (affordable purchase wound down), and cash payments were permanently removed. This was explicitly a viability response — the Government judged that 20% was deterring development when housing supply was critically needed. C1

2021: restoration to 20%

The Affordable Housing Act 2021 restored the 20% requirement, reintroduced the affordable housing dimension (now including cost rental as a genuinely new tenure), and maintained the prohibition on cash payments. Cost rental sets rents based on the cost of delivery, financing, maintenance, and management rather than market rates. C1

2024: consolidation

The Planning and Development Act 2024 (signed 17 October 2024; 26 Parts, 637 Sections) consolidates all planning law. Part V provisions are carried forward with the 20% requirement maintained. The Act renames An Bord Pleanála to An Coimisiún Pleanála and restructures the planning appeals process. C1

How Part V works in practice

Compliance mechanisms (current)

Developers can currently discharge Part V obligations only through: C1

1. Transfer of completed units on-site to the local authority or an Approved Housing Body (AHB) — the primary and preferred mechanism
2. Transfer of units on land off-site within the local authority’s functional area
3. Grant of a lease of units on or off-site (typically 25-year leases at up to 90–95% of market rent)
4. A combination of the above

No longer permitted: Financial/cash payments, making available serviced sites, transferring undeveloped land outside the application area. These were removed in 2015. C1

Pricing formula

The price paid by the local authority is based on: C2

• EUV of the proportionate land — often dramatically lower than market value
• Plus construction costs at cost (not market pricing)
• Minus a reduced or nil developer profit margin on the Part V portion

The key variables: open market value (OMV), existing use value (EUV), construction cost per unit, and the balancing payment required to achieve estimated net market value (ENMV).

The leasing problem

Under 25-year leases, the State pays approximately 90–95% of market rent (reviewed every 4 years) and at the end of 25 years, properties revert to the developer. The State acquires no permanent housing stock. C1

Across the State, approximately 9,000 social housing leasing deals were agreed with property funds at a total cost of €3.24 billion over 25 years, after which the funds retain ownership. A Private Members’ Bill to repeal the Part V leasing option was introduced in the Dáil in April 2021.

“Pepper-potting” vs clustering

Distributing Part V units throughout a development (“pepper-potting”) is the preferred approach for social integration, though research by the Housing Agency/UCD (2022) found that both clustered and dispersed models work well in practice. “Tenure-blind” design — where social and private units are physically indistinguishable — was found to matter more than the specific distribution pattern. C2

Practical problems

• Valuation disputes: Disagreements on EUV cause significant delays; in south Dublin, developers have sought up to €700,000 from councils for two-bed apartments, and in the docklands more than €900,000
• Negotiation delays: Part V agreements can take years to conclude; developers often leave discussions late
• Timing mismatch: Part V units are often among the last delivered; social tenants may wait years after private purchasers move in
• Specification differences: Local authorities sometimes require different specs for Part V units, creating construction inefficiencies
• Statistical opacity: The Department of Housing’s presentation of Part V figures has been described as “hugely frustrating”

Part V delivery statistics

Cumulative delivery

Annual snapshots

Part V is a secondary, not primary source of social housing. Its contribution is modest relative to total housing output but provides an important baseline of social units integrated into private developments. The private sector now delivers more than seven in ten new social homes through various mechanisms including Part V, turnkey acquisitions, and AHB developments. C2

Pro-cyclical weakness

Part V delivers zero social housing when private construction stops, as happened during 2009–2013. This is an inherent structural weakness: output is entirely dependent on the volume of private development, and delivery collapses precisely when social housing need is most acute. C1

The economics of Part V

How EUV creates the discount

The developer’s Part V cost is calculated through a residual land value model. The key mechanism: the proportionate land attributable to Part V units is valued at existing use value rather than market value, and construction costs are reimbursed at cost with reduced or no developer profit. C2

Illustrative example: greenfield site

For a 100-unit development on formerly agricultural land where units sell at €350,000 each:

• Developer must transfer 20 units to the local authority
• Agricultural EUV: €20,000/acre vs zoned residential: €500,000/acre — 96% land cost discount
• Developer receives construction costs plus minimal margin but forgoes market profit on 20% of the scheme

The discount range

Estimated ranges. Precise per-unit discount data is not published systematically. C4

Who bears the cost?

This is the central economic question and it is unresolved. C3

The cross-subsidy to private buyers

Part V creates a cross-subsidy: the developer absorbs below-market returns on 20% of units. Whether this is borne by the landowner (lower land price), the developer (lower profit), or the private buyer (higher price on the remaining 80%) is the contested question. The Affordable Housing Fund provides subsidies of €50,000–€150,000 per affordable unit (average €77,413 in 2024) to bridge the gap. C2

Cumulative burden

The Land Value Sharing and Urban Development Zones Bill 2022 introduced an additional 25% levy on zoning-related value uplift. Combined with Part V (20% of units at EUV) and development contributions, more than 50% of the original uplift in land value from rezoning could flow back to the State. The CIF argues this cumulative burden damages viability. Advocates argue it captures publicly-created value. C2

The contested debate

From developers and industry

• Reduces viability, especially for brownfield/infill sites where EUV is already high and for apartments with marginal economics
• Creates delays through valuation disputes and negotiation
• The CIF estimates it adds €35,000+ per private unit (contested figure)
• “Inequitable” — taxes new homebuyers to fund social housing rather than spreading cost across all taxpayers
• The 9-unit threshold may create incentives to keep schemes just below the trigger

From social housing advocates

• Modest output: ~25,600 units in 23 years is a small fraction of housing need (~3.8% of total housing output)
• Leasing loophole: €3.24 billion in 25-year leases with property funds, after which “no asset at the end”
• Cash buy-out (2002–2015) undermined social integration — €91m collected in cash instead of units
• Zero output when private construction stops, precisely when need is greatest
• 20% is at the lower end of international comparators (UK targets 30–40%)
• The €50,000 affordable housing subsidy is inadequate in high-cost areas
• Statistical opacity makes independent performance assessment difficult

The viability question

Part V clearly reduces residual land value in development appraisals. The viability concern is most acute for:

• Brownfield/urban infill sites where EUV is already high (less planning gain to capture)
• Apartment developments where construction costs are very high relative to achievable prices
• Lower-value regional areas where sale prices barely cover costs

The 2015 reduction from 20% to 10% was explicitly a viability response. But Michael Byrne argues that if Part V is understood as capturing planning gain rather than imposing a cost, then the “viability impact” is really a question of how much gain should be captured vs. left with the landowner. At 20%, Ireland’s requirement is moderate by international standards. C2

Mixed-tenure benefits

A comprehensive Housing Agency/ICSH study conducted by Professor Michelle Norris (UCD, 2022) examined actual Part V estates and found strong evidence that mixed-tenure communities work: C2

• Tenure mixing improves quality of life for residents of all tenures
• Tenure-blind design — where social and private housing are physically indistinguishable — was considered the single most important factor for successful integration
• Both clustered and dispersed Part V units work well with good management
• Key success factors: tenure-blind design, good estate management, amenity provision, active residents’ associations

Over 20 years, AHB-managed social housing in mixed-tenure estates increased from 20% to 80%, reflecting Part V and related policies. Part V helps avoid the concentrated deprivation of historical mono-tenure estates — Ballymun towers, Fatima Mansions, Moyross — which became associated with poverty, poor services, and social stigma. C2

International comparison: inclusionary housing

England’s Section 106

Section 106 of the Town and Country Planning Act 1990 delivers approximately 44% of all affordable homes in England (62,289 total affordable homes in 2023–24; 64,762 in 2024–25). Unlike Ireland’s fixed percentage, S.106 obligations are negotiable subject to viability assessment — developers can argue that affordable housing would make a scheme unviable, leading to reduced or zero affordable housing. C2

The viability assessment system has been extensively criticised for allowing developers to game the system. Ireland’s fixed-percentage approach avoids this particular problem. However, England’s targets (30–40%) are higher than Ireland’s 20%, and the definition of “affordable” is broader (social rent, affordable rent at up to 80% of market, shared ownership). Over 17,000 affordable homes with planning permission were stalled in 2024 because housing associations could not take them on.

United States: inclusionary zoning

Approximately 1,059 IZ policies exist across 34 states (as of 2022), collectively contributing over 110,000 below-market-rate units. About 70% of programs are mandatory; 30% voluntary. Mandatory programs are 1.5x more likely to produce affordable units. Typical requirements range from 10–30%, with 10–20% most common. New York City requires 20–30%. C2

Ireland’s 20% is at the higher end of US IZ ranges but at the lower end compared to UK Section 106 targets.

Case studies

Cherrywood SDZ: layered contributions + Part V

Hansfield SDZ: the leasing controversy

Glenamuck: extreme S.49 charges

Cork City: from 50% levy cut to zero Part V

Adamstown SDZ: multi-source infrastructure funding

Clonburris SDZ: exceeding Part V minimums

Kildare: the Part V leader

Glenkerrin Homes: the buy-out dispute

O Cualann Cohousing: the land cost lesson

Temporary waiver: national impact

Luas Cross City: the S.49 model