Set within the historic 12th-century Killeen Castle demesne, Loughmore Wood is a masterclass in the sensitive delivery of residential development by Castlethorn. By pairing MMC with a fabric-first sustainability strategy, the developer has integrated 22 high-spec, A-rated homes into a sensitive protected woodland setting. From navigating complex rural infrastructure to maintaining seamless site logistics within an active golf resort, the project showcases Castlethorn’s ability to blend technical innovation with a deep respect for heritage landscape.

Loughmore Wood is a low-density residential scheme comprising 19 detached five-bedroom homes and three bungalows set within the historic demesne of Killeen Castle, Co Meath.

Positioned within a mature woodland context, the development forms part of the wider restoration and activation of the Killeen Castle estate, a site with origins dating back to the 12th century. The design approach centres on delivering contemporary family housing within a heritage landscape, with particular emphasis on how each home is carefully sited to respond to its immediate surroundings, optimising orientation, natural light, privacy and views across the tree-lined setting.

A considered material strategy underpins the architectural approach, with a restrained palette of durable, high-quality external finishes selected to complement the natural environment and reinforce a sense of permanence. This focus on materiality, combined with attention to scale and layout, ensures the homes integrate cohesively within the wider estate. Each unit has been configured to support modern patterns of family life, incorporating generous floor areas, open-plan kitchen and living spaces, dedicated study areas and separate reception rooms. The overall scheme represents a measured approach to rural residential delivery, balancing architectural quality, environmental context and the evolving expectations of the trade-up housing market.

MMC/Traditional build

Castlethorn is known for pioneering Modern Methods of Construction (MMC). For this specific project of 22 high-end detached homes and bungalows, timber frame (TF) was the agreed approach. Early detailed design development with the preferred TF specialist leads to minimal/zero quality and installation issues on site.

This greatly reduced health and safety risks compared with traditional build approaches and helped deliver a faster programme, allowing Castlethorn to commence internal first- and second-fix trades in parallel with delivering the external envelope.

Infrastructure and services

The delivery of Loughmore Wood demanded a carefully considered infrastructure strategy, shaped by the realities of a rural and historically sensitive setting. In this context, an infrastructure-first approach was essential from the outset, with servicing treated as a core delivery workstream rather than an issue to be resolved later in the process.

The water supply is drawn from private wells and treated in an on-site treatment plant. This required early technical assessment and detailed coordination to ensure that water quality, treatment capacity, operational resilience and long-term compliance were fully addressed at design stage.

By resolving these matters early, the development could proceed on the basis of a clear and reliable servicing strategy, rather than being exposed to uncertainty around public network availability.

Engagement with ESB Networks was equally important. Given the reliance on on-site treatment infrastructure, it was critical to secure an appropriate and reliable power solution to support plant operations and associated site services.

This required proactive engagement on capacity, connection requirements and programme alignment so that utility provision supported, rather than delayed, delivery.

The key strength in Castlethorn’s approach was the integration of infrastructure planning into the wider development programme. Rather than treating utilities as external dependencies, they were incorporated into the scheme’s sequencing and design from the beginning. This disciplined approach allowed the developer to bring forward serviced sites with greater certainty and to maintain control over programme and risk.

Loughmore Wood is a strong example of Castlethorn’s ability to deliver practical, robust infrastructure solutions in more constrained settings. It demonstrates the developer’s capacity to work closely with utility stakeholders, to manage non-standard servicing arrangements with care and technical rigour, and to ensure that essential infrastructure is in place to support high-quality residential delivery from the outset.

Sustainability

The homes at Loughmore Wood achieve an A2 BER rating and are delivered in full compliance with NZEB (Nearly Zero Energy Building) standards, underpinned by a robust fabric-first approach. This prioritises minimising heat loss at source before reliance on mechanical systems. The building envelope incorporates high-performance insulation throughout, with typical U-values achieved.

A continuous air-tightness strategy is central to this approach, using proprietary membranes and tapes at all critical junctions, including window and door openings, service penetrations, and structural interfaces.

Target air permeability is typical, with on-site testing undertaken to validate performance. The emphasis was on maintaining continuity of the air barrier layer across the full envelope.

Thermal bridging is addressed through careful detailing at all junctions, which becomes particularly critical in the larger five-bedroom detached units where increased surface area can amplify heat loss.

Accredited Construction Details are adopted and enhanced where required, with insulated cavity closers, thermally broken lintels, and continuous insulation at floor-to-wall and wall-to-roof interfaces.

Ground floor junctions incorporate perimeter insulation to minimise ψ-values, while eaves-level detailing ensures uninterrupted insulation continuity.

The heating strategy was centred on a Firebird air-to-water heat pump system, selected as an efficient and future-proofed solution aligned with the performance of the building fabric.

The system extracts renewable energy from the external air to provide both space heating and domestic hot water. While powered by electricity, it operates at a high level of efficiency, typically achieving a coefficient of performance (COP) in excess of 3, meaning it can deliver multiple units of heat for every unit of electricity consumed.

In practical terms, this translates into lower running costs relative to traditional oil or gas systems, particularly when combined with the high levels of insulation and airtightness delivered across the scheme. The system provides consistent, even heat output, improving internal comfort compared to conventional on-off heating cycles, and is fully compatible with underfloor heating and modern radiator systems.

From an operational perspective, the absence of combustion and on-site fuel storage reduces maintenance requirements and eliminates risks such as carbon monoxide emissions.

Environmentally, the system produces no direct on-site emissions and supports broader decarbonisation objectives, particularly as electricity supply increasingly comes from renewable sources. It also contributes positively to the homes’ overall BER performance.

From a site and civil engineering perspective, sustainability extends beyond the individual dwelling. In addition to mature tree retention, the scheme incorporates Sustainable Urban Drainage Systems to manage surface water and protect local waterways. Measures such as permeable paving, attenuation features, and controlled discharge systems are designed to replicate natural drainage patterns and reduce run-off rates.

Landscaping and open-space planning also support informal biodiversity corridors, helping maintain ecological continuity across the site.

Overall, the development reflects a coordinated integration of building fabric, services engineering, and site design, with energy performance, environmental impact, and long-term durability addressed in a cohesive and technically robust manner.

Site logistics

Managing construction within an active golf resort requires a highly controlled and carefully sequenced approach.

At Killeen Castle, the team recognised from the outset that the continued operation of the resort, and the quality of the guest experience, had to be protected throughout the construction period.

This was achieved through rigorous planning of the construction programme, with the most disruptive activities carefully timed and coordinated to minimise impact on the resort’s day-to-day operations. Particular attention was given to separating construction activity from guest areas, maintaining safe and discreet access arrangements, and ensuring that works progressed in a way that respected the estate’s overall setting and ambience.

Noise and dust were managed through standard best-practice controls, but, more importantly, through disciplined site management and sequencing.

Heavy vehicle movements were tightly controlled, with defined haul routes, managed delivery schedules and strict on-site supervision to reduce interference with resort traffic and operations.

The key strength demonstrated at Killeen Castle was not simply the ability to build in a constrained environment, but also to do so while preserving the functionality, presentation, and character of a high-quality live destination. That experience reflects a practical understanding of how to deliver significant development works in sensitive, operational settings with minimal disruption.

Supply chain resilience

The procurement strategy adopted at Loughmore Wood was informed by the same underlying principles that guide Castlethorn’s larger-scale developments, but with a level of calibration to reflect scale, programme and market conditions.

A central strength is the depth and continuity of the developer’s supply chain. It highlights long-established relationships with key suppliers and subcontractors, many of whom have worked alongside Castlethorn for decades. These are not transactional arrangements; they are embedded partnerships built on consistent delivery, shared standards and mutual understanding of programme requirements. Critically, these partners operate across multiple Castlethorn sites at any given time, providing workflow continuity and facilitating coordinated procurement planning.

In a period of material cost volatility, this continuity becomes a material advantage. It enables earlier engagement with suppliers, improved visibility on lead times, and a greater degree of cost certainty than would typically be available through spot procurement. It also allows the developer to aggregate demand across projects where appropriate, securing more stable pricing and prioritised allocation of materials.

At Loughmore Wood, while the scale is more modest than a large urban scheme, such as its Kellystown development in Dublin 15, the same supply chain infrastructure was leveraged. The difference lies in how it is deployed.

Procurement packages were sequenced to suit a more contained programme, with a focus on maintaining momentum on site while avoiding unnecessary exposure to price fluctuation. The established relationships meant that flexibility could be introduced where needed, without compromising on quality or delivery timelines.

In practical terms, this approach reduces risk rather than eliminating it.

Market volatility cannot be controlled, but it can be managed through early planning, trusted delivery partners and consistency of pipeline. That is where Castlethorn believes that experience across multiple active sites provides a tangible advantage, allowing it to maintain programme certainty and build quality even in less stable market conditions.

Handover

Castlethorn’s approach to handover has evolved in response to the increasing technical complexity of modern homes, particularly in relation to energy systems, ventilation and integrated technologies.

The developer recognises that the success of these systems is ultimately dependent on the homeowner’s understanding and confidence in using them.

Each purchaser is provided with a comprehensive, development-specific ‘Homeowner Manual’, tailored to the particular systems and specifications within their home.

This is not a generic document, but a practical guide that reflects the exact configuration of heating, ventilation, fibre connectivity and EV infrastructure in place.

However, the manual is only one component. Castlethorn’s emphasis is on a highly customer-centric handover process.

At key handover, finishing foremen play a central role, working directly with residents to walk through their home in detail. This includes on-site demonstrations of heating and ventilation systems, guidance on optimal settings, and clear explanations of how the various elements interact.

Castlethorn recognises that familiarity develops over time, so this support does not end on the day of handover. It provides follow-up engagement and, where required, repeat visits to ensure residents are comfortable operating their systems and are achieving the intended performance outcomes.

The result is a structured but personal approach that combines clear documentation with hands-on guidance. It ensures that homeowners are not simply given a technically advanced home, but are supported in using it effectively from the outset and as their understanding develops.

In conclusion

Loughmore Wood stands as a compelling case study in disciplined, “technical-first” development. By navigating the logistical complexities of an active resort and the infrastructure demands of a rural site, Castlethorn has proven that modern efficiency and historical integrity are not mutually exclusive.

The project does more than just deliver high-spec, A-rated housing; it provides a blueprint for how the industry can leverage MMC and deep supply chain partnerships to breathe new life into Ireland’s most sensitive heritage landscapes.

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