Days Out NI
Historic Estate Portstewart, Co. Londonderry

Cromore Estate

The old seat of the Cromie family who founded Portstewart — a historic estate to know about on the edge of town.

4 photos
Largely privateNot a walk-in site
History to knowThe story of the town
PortstewartCo. Londonderry
Find it on the map
c.1777House built
The CromiesFounding family
PortstewartEdge of town
PrivateNow residential
CoastNear the Strand

A historic estate on the very edge of Portstewart — the old seat of the Cromie family, the people who founded the town in 1792. Cromore House and its parkland are still there, but this is a place to know about rather than a day out you walk into.

  • What it is — the Cromore demesne, wrapped around Cromore House, a Georgian mansion said to have been built around 1777 and later given its flanking wings and colonnaded porches. For generations it was the home of the Cromies, the family who laid out and named Portstewart just down the road.
  • Its story & connections — from the Cromies the estate is thought to have passed by marriage to the Montagu family, cousins of the Dukes of Manchester, who lived here into the 1930s. There's a handsome castellated gate lodge on the old estate entrance, and a walled garden and parkland behind.
  • Where it sits — on the southern edge of Portstewart, a short way inland from the town and its famous Strand, so it's easily tied into a day on this stretch of the Causeway coast.
  • What's there now — the grounds have been given over to housing over the years: the old outbuildings are now apartments, and part of the estate is used for holiday accommodation. The main house itself has stood empty in recent times, so there's no visitor centre, no ticket office and no set trail.
  • Much of the estate is private and residential. This isn't a walk-in attraction — people live here. Admire the setting and the gate lodge from public roads and paths, and don't wander onto private land or driveways.
  • Check locally, and pair it with the town. Access can change, so ask in Portstewart before you plan around it — and make the real day out the town's coast and the glorious Strand a couple of minutes away.
Be honest with yourself

Can I visit? Honestly, not as an attraction.

It's worth being straight about this one. Cromore is a historic estate, not a public site — there's no visitor centre, no car park, no opening hours and no trail to follow. Much of the old demesne is now private and residential, with the outbuildings turned into homes and part of the grounds used for holiday accommodation, and the main house has stood empty in recent years. So think of Cromore as a piece of Portstewart's story to know about and appreciate from nearby — the castellated gate lodge and the wooded parkland glimpsed from public roads — rather than somewhere you set out to walk around. Please don't enter private driveways or land. If you'd love to get closer, the best route is to ask locally in Portstewart, or look out for any open-day or heritage event that occasionally opens doors like these.

Private & residential No visitor centre or trail History worth knowing Pair with Portstewart Strand
Two to remember:

People live here — much of the estate is private and residential, so keep to public roads and paths and don't wander onto driveways or land. And don't build a day around it: access can change and there's nothing to walk into, so make the town and the Strand the real outing and enjoy Cromore as the story behind it.

How to enjoy it

Make it part of a Portstewart day

  • 🏖️Do the Strand firstPortstewart Strand is two miles of golden sand a couple of minutes away — the real day out, with Cromore as its backstory.
  • 🚶Keep to public roadsAdmire the castellated gate lodge and wooded parkland from the road — enjoy the setting without stepping onto private land.
  • 📖Read up on the CromiesKnowing the family founded Portstewart in 1792 turns a stroll around the town into a proper history walk.
  • Linger in the townPortstewart's promenade, cafés and harbour are right there — the pleasant, walkable heart of any visit.
Good to know

Everything before you go

What it is
A historic estate on the edge of Portstewart, built around Cromore House — long the seat of the Cromie family, who founded the town in 1792.
Can you visit?
Not as an attraction. There's no visitor centre, no car park, no opening hours and no set trail. Much of the estate is now private and residential.
What you can see
From public roads and paths you can take in the setting — the castellated gate lodge on the old entrance and the wooded parkland — without entering private land.
The house
Cromore House is said to date from around 1777 and was later extended with wings and colonnaded porches. In recent years the main house has stood empty; the old outbuildings have been converted into homes.
Current use
Largely residential, with apartments in the former estate buildings and part of the grounds used for holiday accommodation. Please respect that people live here.
Best paired with
Portstewart itself — the promenade, harbour and the two-mile Portstewart Strand, all just minutes away.
Access note
Arrangements can change over time. If you'd like to get closer, ask locally in Portstewart or look out for any heritage open day.
Where
On the southern edge of Portstewart, Co. Londonderry, a short way inland from the town and the coast.
Questions

Before you go

Can I visit Cromore Estate?
Not as a public attraction. There's no visitor centre, ticket office, car park or trail, and much of the estate is now private and residential. Think of it as a piece of local history to know about and appreciate from nearby public roads, rather than a day out you walk into.
What can I actually see?
From public roads and paths you can take in the setting — the castellated gate lodge on the old estate entrance and the wooded parkland around Cromore House. Please don't step onto private driveways or land to get a closer look; people live here.
Why does it matter — what's the story?
Cromore was the home of the Cromie family, who founded Portstewart in 1792 and named it after their Stewart ancestors. So the estate is, in a real sense, where the town itself began — which makes it worth knowing about even though you can't wander round it.
Is the house open, or a museum?
No. Cromore House is a private building that has stood empty in recent years, and it isn't a museum or a set-piece to tour. The former outbuildings have been turned into homes.
So what should I actually do nearby?
Make Portstewart the day. The two-mile Portstewart Strand, the promenade and harbour, and the wider Causeway coast are all right there — enjoy those, and let Cromore be the story behind the town.
Could access change?
It could — arrangements around estates like this shift over time. If you'd love to get closer, ask locally in Portstewart or watch for any occasional heritage open day.
Where it is

Cromore House and estate sit on the southern edge of Portstewart, Co. Londonderry, a short way inland from the town and the coast. Remember it's largely private and residential — take it in from public roads, and make the town and the Strand your day out.

Nearby

Make a real day of it

The story

Where Portstewart began

Cromore is bound up with the very founding of Portstewart. The Cromie family are thought to have settled on the land here in the eighteenth century — a Dublin merchant, Michael Cromie, is said to have acquired ground in the area in 1738 — and it was John Cromie who, in 1792, laid out and named the seaside town just down the road, calling it after his Stewart ancestors. Cromore House, said to date from around 1777 and later dressed up with wings and colonnaded garden porches, became the family's seat, looking out over parkland and a walled garden on the edge of the town they had made.

By marriage the estate is thought to have passed to the Montagu family — cousins of the Dukes of Manchester — and a retired naval officer, Robert Montagu, is said to have lived at Cromore into the 1930s, when the great house was still a home of thirty rooms. In the years since, the world around it changed: the house served other uses and then fell quiet, the outbuildings were turned into homes, and part of the demesne became holiday accommodation. Today it's a quieter, more private place than in its heyday — but stand on the edge of Portstewart, look toward the wooded grounds and the castellated gate lodge, and you're looking at where the whole town began.