Co. Meath · Meath County Council area

Modular Homes & Granny Flats in Navan, Co. Meath

Nua Living builds ICF modular homes in Navan, Meath’s county town, on the River Boyne, and in nearby Dunshaughlin, Ratoath and Ashbourne: solid, poured-concrete homes of 33–48 m², built on your own site — in the rear garden of your main house for a planning-exempt build. Every size has a fixed price, and the on-site structural build takes 5–10 days once your foundations are ready.

Check If My Garden Qualifies See fixed prices

Modular homes from: €93,900 + VAT
On-site build: 5–10 days
Exempt home sizes: 32–45 m²
Council to notify: Meath County Council

S.I. No. 340/2026 · Class 3A

Building a garden home in Navan: local planning notes

The Meath County Development Plan 2021–2027 designates the Navan Historic Core Architectural Conservation Area: Trimgate Street, Market Square, Watergate Street, Ludlow Street, Bridge Street, Church Hill, the Fair Green and Railway Street as far as Circular Road. The plan lists 189 protected structures in Navan, most of them inside the conservation area, and asks that new development in or beside it keep to the town’s existing scale. Exemptions are narrower for protected structures and in conservation areas, so for a house in the historic core we confirm the position with Meath County Council first.

Navan is on public sewer, treated at the Navan wastewater treatment plant on the south bank of the Boyne, east of the town. The development plan described its spare capacity as limited in 2021; Uisce Éireann’s April 2026 register shows it as green, with an upgrade from 45,000 to 54,000 population equivalent planned and a new pumping station and sewer at Farganstown under construction. Class 3A allows no separate connection, so a garden home links into the main house’s existing services.

Navan is an OPW CFRAM Area for Further Assessment on the Boyne catchment. Meath’s flood risk assessment records significant flood history from the Swan River and the Boyne and Blackwater, notes that the Balreask Manor and Canterbrook estates are now protected to a 1-in-100-year standard, and asks for a flood risk assessment with extensions in at-risk areas. A flood relief scheme for the town is still at assessment stage, so check your address on floodinfo.ie; we check it too at the site visit.

The plan describes a town that keeps many historic streetscapes on a Y-shaped medieval street pattern, with more recent growth as housing estates in the environs. The River Boyne and River Blackwater SAC and SPA run through the settlement. Navan is in the Navan Municipal District, and Meath County Council’s headquarters is Buvinda House on the Dublin Road.

Sources for Navan

Checked 21 October 2026. Plans and designations change; we confirm what applies to your site at the free site visit.

The national conditions, which apply in Navan too

The national Class 3A exemption applies in Navan as it does across Ireland. A garden home of 32–45 m² can go ahead without planning permission when all of these hold:

It is a detached home of 32–45 m², measured on the external footprint, in the rear garden of your main house — counted together with any earlier Class 3 garden structures.
At least 25 m² of private garden remains for the main house.
It sits at least 0.6 m from every boundary, and its windows are at least 0.6 m from the boundary they face.
It has its own pedestrian access within the garden, with no new entrance onto the road.
It is no higher than 3 m (4 m with a tiled or slated pitched roof).
You live in the main house as your sole or main residence, and the garden home is never sold separately or let short-term.
Meath County Council is notified at least 14 days before work starts, with the location and Eircode of the property.
Work starts and finishes by 31 December 2030.

We check your site against every condition at the free site visit. Sizes above 45 m² need standard planning permission from Meath County Council, which we apply for on your behalf.

How the S.I. No. 340/2026 exemption works →

Fixed prices nationwide

Modular home sizes & fixed prices in Navan

A build in Navan costs the same as anywhere we work: one fixed price per size, including design, build and full project management. Prices exclude site works, connections and professional fees. We quote those after your free site visit.

Navan price list: fixed prices for every size
Size & model	Fixed price	Bedrooms / use	Planning
33 m²1 Bed Granny Flat	€106,577incl. 13.5% VAT€93,900 + VAT	1 bedroom	Can be exempt*
45 m²1 or 2 Bed Granny Flat	€143,578incl. 13.5% VAT€126,500 + VAT	1 bed (2 bed possible)	Can be exempt*
48 m²2 Bed Granny Flat	€152,658incl. 13.5% VAT€134,500 + VAT	2 bedroom	Standard permission
25 m²Garden Studio	€78,315incl. 13.5% VAT€69,000 + VAT	Garden room · not for sleeping in	Exempt as garden room†

The 25 m² Garden Studio is a Class 3 garden room, not a home. It is for use with your home — an office, studio, gym or hobby room — and cannot be lived in or slept in without planning permission.

*Subject to site eligibility under S.I. No. 340/2026, Class 3A (32–45 m² in the rear garden, owner living in the main house, at least 25 m² of garden remaining, own access within the garden, 14-day notice to the council) — confirmed at your free site visit. Build time refers to the on-site structural build once foundations are ready; excludes design, planning and connections lead-time. Prices exclude site works, connections and professional fees. †Garden Studio: Class 3, Part 1, Schedule 2, Planning and Development Regulations 2001, as substituted by S.I. No. 338/2026. Not forward of the front wall; finishes to match the house if built to the side; not for human habitation. May not apply where planning conditions restrict exempt development. Counts towards the 45 m² Class 3A limit if you later add a garden home. Confirmed at your free site visit.

Full price list & what each price includes →

Concept floor plans

Layouts for Navan gardens

Our 10 concept floor plans run from 32 to 45 m², each drawn to scale so you can print it and mark it out in your garden. Every home is custom designed, so a plan is a starting point, not a limit.

For a long, narrow garden

Browse every floor plan

Navan FAQ

Garden homes in Navan: your questions

Do I need planning permission for a modular home in Navan?+

In most cases, not for a garden home of 32–45 m². Navan follows the same national rules as everywhere else: under S.I. No. 340/2026 (Class 3A), a detached home of 32–45 m² in the rear garden of your main house is exempt from planning permission if at least 25 m² of garden remains, it sits 0.6 m from every boundary, it has its own access within the garden, you live in the main house, and Meath County Council is notified 14 days before work starts. The 33 m² 1 Bed Granny Flat and the 45 m² 1 or 2 Bed Granny Flat fit the band; the 48 m² 2 Bed Granny Flat needs standard permission, which we handle. The exemption runs until 31 December 2030, and we check your site free of charge.

Which council do I notify for a garden home in Navan?+

Navan is in the Meath County Council area, so that is the planning authority you notify. The Class 3A notification must reach the council at least 14 days before work starts, giving the location and Eircode of your property. Email penquiries@meathcoco.ie (confirm the address by phone first). Meath County Council publishes its own notification form, linked on this page, and we prepare and file it for you as part of every exempt build. It is separate from the building control Commencement Notice, which goes on BCMS because a garden home is a new dwelling.

How much does a modular home cost in Navan?+

Our prices are fixed nationwide, so a build in Navan costs the same as anywhere else: €93,900 (€106,577 incl. 13.5% VAT) for the 33 m² 1 Bed Granny Flat, €126,500 (€143,578 incl. 13.5% VAT) for the 45 m² 1 or 2 Bed Granny Flat and €134,500 (€152,658 incl. 13.5% VAT) for the 48 m² 2 Bed Granny Flat (+ VAT @ 13.5%), including design, build and full project management. The 25 m² Garden Studio, a garden room rather than a home, is €69,000 + VAT @ 13.5% (€78,315 incl. 13.5% VAT). Prices exclude site works, connections and professional fees. We quote those after your free site visit in Navan.

How long does a garden home build take in Navan?+

Once your foundations are ready, the on-site structural build takes 5–10 days. Primestructures’ own crew builds every home, with 10 years of ICF construction behind them. Design, planning and connections come before that: for an exempt size, the 14-day notification to Meath County Council and the building control Commencement Notice have to go in before work starts, and a larger size needs planning permission first. We give you a full timeline at your free site visit.

Around Navan

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Get a fixed price for your site

Start with your name and number so we can get back to you. Then check your garden and add any site details you know for your quote — the extra questions are optional. You deal with Nua Living throughout: one point of contact from your first call to handover. Primestructures’ own crew builds every home, with 10 years of ICF construction behind them.