What Security Does a New Build Home Need in Ireland?

A brand-new house feels secure. It’s freshly built, well-sealed, fitted with modern doors and windows; surely it’s safe? Not quite. In Ireland, some safety features are required by law in a new build, but security is a different matter, and much of it is left entirely to you. This guide explains what your new home must have, what it doesn’t (but should), and how to get it right from day one.

Quick answer: what security does a new build need?

By law, a new build in Ireland must have interlinked smoke and heat alarms and, where there’s a fuel-burning appliance, a carbon monoxide alarm. But building regulations do not require an intruder alarm or CCTV so a new home is often handed over with little or no security against break-ins. For real protection, a new build needs a professionally installed, monitored intruder alarm, ideally with monitored fire detection and, depending on the property, CCTV.

• New builds must have interlinked fire (smoke and heat) detection under Irish building regulations.
• Carbon monoxide alarms are required where there’s a gas, oil or solid-fuel appliance.
• Intruder alarms and CCTV are not required by building regs, that protection is up to the owner.
• A new house isn’t automatically a secure one; “new” and “protected” aren’t the same thing.
• Moving-in day is the ideal time to fit a wireless system, no mess in a freshly finished home.

What a new build must have by law

Ireland’s building regulations set a clear safety baseline, and it centres on fire.

Under Part B (Fire Safety) of the Building Regulations and the Irish Standard I.S. 3218, all new dwellings built since 2022 must have, as a minimum, a Grade D, Category LD2 fire detection system. In plain terms, that means mains-powered, interlinked smoke and heat alarms with battery backup, interlinked so that when one sounds, they all sound, covering the hallways, landings and stairwells, the main living room, and a heat alarm in the kitchen, with at least one smoke alarm on every storey. Mains-wired interlinked alarms must be fitted by a RECI-registered electrical contractor.

Separately, under Part J, a carbon monoxide alarm is required in any room containing a fuel-burning appliance; a gas boiler, oil heating, a stove or an open fire. CO alarms must comply with the EN 50291 standard and carry proper certification.

So your new build will arrive with fire and CO detection built in. That’s the safety floor and it’s genuinely important. But notice what it doesn’t cover.

What a new build is not required to have

Here’s the gap most buyers don’t realise until they’ve moved in: nothing in Ireland’s building regulations requires a new home to have an intruder alarm or CCTV. A developer can legally hand over a finished house with no burglar alarm at all, or with only basic provision, a bit of cabling, or a low-spec bells-only box fitted to meet a sales spec.

That matters because a new build is not inherently secure against break-ins. Modern doors and windows help, but they’re passive, they don’t detect an intrusion, alert anyone, or summon a response. The comforting feeling that “it’s a new house, it must be safe” is exactly the assumption that leaves new homes unprotected.

Why new builds and new estates carry their own risks

New homes face a few specific vulnerabilities worth knowing about.

If your house is on an estate that’s still being built out, the environment itself adds risk: there’s constant unfamiliar traffic, vans, contractors, deliveries so a stranger rarely looks out of place. Boundaries, fencing and gates may be incomplete, leaving open access. And crucially, an estate that’s only partly occupied has little of the natural surveillance an established neighbourhood provides, fewer neighbours who know who belongs, and no settled community or watch scheme yet. Front and rear doors account for the majority of break-in entries in Ireland, and a half-finished estate offers plenty of quiet approaches.

There’s also the simple matter of timing. Moving in is a busy, distracting period, and security is easily deferred while budgets are stretched after a deposit and closing costs which is precisely when a new home is least protected.

The security a new build actually needs

Beyond the legally required fire and CO detection, a well-protected new build should have:

A professionally installed, monitored intruder alarm. This is the foundation, a system that detects a break-in and triggers a real response, monitored 24/7 rather than relying on a siren nobody hears.

Monitored fire detection. This is where new builds can go a step beyond compliance. Your required smoke alarms will sound locally, but if the house is empty, no one may hear them. A monitored system means the monitoring station is alerted to a fire signal too, and can summon the Fire Service even when you’re out turning a legal box-tick into genuine protection.

Smart app control. New-build buyers tend to expect to manage their home from their phone. A modern system offers arming, disarming, status checks and smart-home control from anywhere.

CCTV, where the plot calls for it. Not every new home needs cameras, but a corner plot, a house backing onto open ground, or one on a still-unfinished estate benefits from the added coverage and deterrence.

On the fire side specifically, Network Security can integrate monitored smoke and fire detection alongside the intruder alarm, giving homeowners additional protection beyond a locally sounding smoke alarm. Its Wireless LuNAR FireWatch combines PIR, smoke and heat detection in one device, a three-in-one solution that can be incorporated into the Network Security system. The ceiling-mounted detector is designed to provide wide coverage while helping minimise blind spots and reduce the risk of tampering or damage. Key features include:

• PIR, smoke and heat detection in one device
• Early fire detection using four heat sensors
• High false-alarm immunity
• Wide-angle detection with a 360° overview
• Visual LED indication for alarm, standby and low battery
• Built-in testing function
• Ceiling and wall tamper protection
• Secondary alarm functionality
• Simple installation and testing

Because the fire detection can form part of the professionally monitored system, an activation can be transmitted to the monitoring centre rather than relying solely on someone being at home to hear a local alarm. For new-build properties, Network Security can also work with homeowners around the installation process, including snagging, system requirements and move-in dates, helping ensure the security and fire protection system is installed, tested and ready when the property is handed over.

Why moving in is the perfect time to fit security

There’s a practical reason to sort security early: a wireless system can be installed in a finished home with no mess. Network Security’s wireless smart alarms need no cable-chasing through your new plaster and paintwork, and a typical installation is completed in under 2.5 hours. Fitting a system as you move in means it’s designed around your actual home and lifestyle from day one, rather than retrofitted later, once you’ve already spent months unprotected.

For a new-build home, Network Security recommends planning the security system as part of the build rather than as an afterthought. This allows the system to be designed around the property, protecting key access points and incorporating the latest alarm, fire detection and CCTV technology from the outset. Typically that means a professionally monitored alarm, protection on key doors and windows, motion detection, appropriate smoke and heat detection, and AI CCTV where required, with smart app control and other features depending on the homeowner’s needs.

For a home on an estate that’s still under construction, the approach can be slightly different, and timing and coordination become important. Network Security can work with the homeowner around the build programme, snagging and expected move-in date, ensuring the system is installed at the appropriate stage without interfering with ongoing construction. The aim is to have the security system properly planned, professionally installed, tested and ready when the homeowner moves in, giving them protection from day one rather than waiting until after the house is occupied.

How Network Security protects new build homes

For a new home, Network Security offers exactly the setup a new build needs but doesn’t come with: a professionally installed, fully wireless monitored alarm, matched to your home and fitted with no mess, monitored 24/7 from its own station, with full app control and the option to add monitored fire detection and CCTV – backed by over 30 years protecting Irish homes.

So, what security does your new build need?

Your new home will arrive meeting Ireland’s fire-safety requirements, but not its security ones. To actually protect it, add a professionally installed, monitored intruder alarm, consider monitored fire detection and CCTV, and do it as you move in, while a wireless system can go in cleanly. New doesn’t mean secure; the security is the part you add.

Just moved into, or about to move into, a new home? Network Security fits wireless monitored systems with no mess, typically in under 2.5 hours, designed around your new build and monitored 24/7 from our own Rathcoole station. Get a free, no-obligation quote today.

Frequently asked questions

What security is legally required in a new build in Ireland?

New dwellings must have interlinked smoke and heat alarms (a Grade D, Category LD2 fire detection system under I.S. 3218) and a carbon monoxide alarm where there’s a fuel-burning appliance. Intruder alarms and CCTV are not legally required.

Do new builds come with a burglar alarm in Ireland?

Not necessarily. Building regulations don’t require an intruder alarm, so a new home may be handed over with none, or with only basic provision or a bells-only box. Monitored security is something the owner typically needs to arrange.

Is a new house automatically secure?

No. Modern doors and windows help, but they’re passive, they don’t detect a break-in or summon a response. A new build needs a monitored alarm to be genuinely protected.

Can I get an alarm fitted in a new build without making a mess?

Yes. Wireless systems need no cable-chasing through new walls and can be installed cleanly, typically in a couple of hours which is why moving-in time is ideal.

Should a new build have monitored fire detection?

It’s a valuable upgrade. Required smoke alarms sound locally, but a monitored system also alerts a 24/7 monitoring station, which can call the Fire Service even if the house is empty. Network Security’s Wireless LuNAR FireWatch combines PIR, smoke and heat detection in one device that can be monitored as part of the system.