Althorp House: 2026 Opening Times, Tickets and Visiting Guide

Of all the places guests ask me about, Althorp is the one where the practical details matter most, because getting them wrong wastes a whole day. The house is open to the public for two months of the year and no more. If you are staying with us outside July and August you cannot visit, and I would much rather tell you that now than have you drive across Northamptonshire and find the gates shut. For those months it is one of the best half-days in the county, and it pairs well with the other Northamptonshire landmarks if you are here for a few days.

The second thing worth saying early: the Diana exhibition that ran in the stable block from 1998 closed permanently in 2013. A great many articles and travel listings still describe it as though you can walk round it, and guests arrive expecting it. You cannot. What you can see is the house itself, the collection inside it, the gardens and the Round Oval lake where she is buried. That is still very much worth the trip, and it suits the kind of unhurried day that a quiet countryside base is made for, but you should go knowing what is actually there.

What follows is the honest version: the opening dates, what you actually see, the history of the family who have lived there for over five hundred years, and how to fit it into a stay without the day falling apart.

When Althorp House Is Open in 2026

Althorp is a private family home first and a visitor attraction second, which is why the opening window is so narrow. For 2026 the house and grounds are open from 1 July to 31 August, with the house closed on 10 and 11 July. Outside those dates there is no public access to the house or the park.

Tickets can be booked online in advance or bought on the day at the West Gate entrance. Althorp does not publish a standard price list on its main site and rates have moved year to year, so I would book through althorp.com directly rather than trusting the figures you find on third-party listing sites, several of which are years out of date. The booking line is 01604 770006.

Five Hundred Years of the Spencer Family

John Spencer bought Althorp from the Catesby family in 1508 for £800, and his descendants have been there ever since. That is over five hundred years in one family, which puts it in a very small group of English houses, and it is the reason the collection inside is what it is. Nobody has had to sell up and start again.

The house you see today largely dates from 1688, but its appearance is the work of the architect Henry Holland, who from 1788 refaced the original red brick in grey mathematical tiles and added the four Corinthian pilasters across the front. It is a startling change if you know what was underneath, and it gives Althorp a cooler, more classical face than most Northamptonshire houses of its age. The great dining room came later, added in 1877 by J. MacVicar Anderson.

Year	What happened
1508	John Spencer buys Althorp from the Catesby family for £800
1688	The core of the present house is built
1788	Henry Holland refaces the exterior in mathematical tiles and adds the Corinthian pilasters
1877	J. MacVicar Anderson adds the great dining room
1992	Charles Spencer, 9th Earl Spencer, inherits on his father’s death
1997	Diana, Princess of Wales, is buried on the island in the Round Oval
1998	The stable block opens as an exhibition on Diana’s life
2013	The Diana exhibition closes permanently

The estate runs to roughly 13,000 acres and contains 28 listed buildings, with the house itself Grade I. Charles Spencer, the 9th Earl, has run it since 1992 and is the reason the place feels lived in rather than embalmed. It is still the family home, and on the two months it opens you are a guest in someone’s house rather than a ticket-holder in a museum.

What You Actually See at Althorp

1. The House and the Picture Collection

The interiors are the reason to come. Five centuries of one family buying, inheriting and hanging things has produced one of the finest private collections of paintings, furniture and ceramics in Europe, and it is hung as a home rather than a gallery, which changes how you look at it.

Give yourself longer inside than you think you need. Guests who treat it as a forty-minute walkthrough come back saying they wished they had slowed down, particularly in the picture gallery. If you have any interest at all in portraiture, this is the room that justifies the ticket.

2. The Round Oval and Diana’s Island

Diana was buried in 1997 on the small island in the middle of the ornamental lake known as the Round Oval. The island is not accessible and never has been. You view it from the path around the water, where there is a memorial and a quiet place to stand.

I would say this plainly because guests sometimes expect otherwise: there is no tour of the grave and no crossing to the island. What there is instead is a very still stretch of water with an urn and a temple on the far bank, and most people find the restraint of it more affecting than a formal memorial would have been.

3. The Stable Block

The stables are architecturally one of the best things on the estate and worth seeing in their own right. Between 1998 and 2013 they housed the exhibition about Diana’s life, including the dresses and the condolence books, which is what most people picture when they think of visiting Althorp.

That exhibition closed permanently over a decade ago. The building remains and the estate uses it for other purposes across the open season, but if seeing the Diana collection was your reason for coming, it is no longer there. Better to know before you book than to find out at the door.

4. The Park and Deer Park

The park is the part guests consistently underrate. The original landscaping took in 300 acres of grassland, 100 acres of woodland and 40 acres of water, and the mature trees in the deer park are extraordinary specimens in their own right.

If the weather is decent, do the house first and the park second, with no fixed plan for the second half. It is the difference between a two-hour visit and a proper afternoon.

Getting There and Planning the Day

Visitors use the West Gate entrance, postcode NN7 4HQ, off the A428 between Northampton and Rugby. Do not aim for the village of Great Brington, which is where several map applications will send you and which is not the visitor entrance. From us in Clipston it is about 22 miles and roughly 35 minutes.

Detail	What to know
2026 opening	1 July to 31 August, closed 10 and 11 July
Visitor entrance	West Gate, NN7 4HQ, off the A428
Booking	althorp.com or 01604 770006, or on the day at the West Gate
Drive from 14 Acres	About 22 miles, roughly 35 minutes
Diana exhibition	Closed permanently since 2013
Burial island	Viewed from the lakeside path, no access
Estate size	Around 13,000 acres, house Grade I listed

Because the season is so short, July and August are also the busiest weeks of the year across Northamptonshire generally. If you are building a stay around an Althorp visit, book the accommodation before the tickets. Every summer we take calls from people who have secured a house slot and then found nowhere decent to stay within half an hour of it.

On timing within the day, the house is quietest in the first hour after opening and again in the last hour before the final entry. The middle of the day is when the coach parties and the day-trippers from Northampton overlap, and the picture gallery in particular gets slow when that happens. If you have any choice about your slot, take the earliest one available and eat afterwards rather than trying to fit lunch in beforehand.

Weather is worth a thought too, because so much of what makes Althorp worth the money is outside. The house works whatever the sky is doing, but the Round Oval, the deer park and the gardens are the difference between a decent visit and a memorable one, and they need a dry afternoon. If the forecast is poor for your booked day and you have flexibility in your stay, it is usually worth ringing to see whether you can move rather than spending the money on a half-experience.

Making a Weekend of It

Althorp is a half-day rather than a full one, so it wants pairing. The three retreats at 14 Acres sit on a private 14-acre estate with its own lake about 35 minutes north, which makes for an easy rhythm: house in the morning, back to the estate for the afternoon, dinner without anybody having to drive again.

The Barn sleeps up to eight and has a 10-metre glass wall onto its own garden with an outdoor kitchen and gas BBQ. The Loft sleeps up to six with a dining balcony over the lake. The Cottage takes four. Booked together for exclusive use the estate takes up to 19, which is how the bigger family groups tend to do an Althorp trip, because the short season means everyone travels at once or not at all.

All three include breakfast provisions, luxury linens, Rituals products, fibre internet, air conditioning and underfloor heating. Infants under 24 months stay free and rates start from £119 a night.

More to Explore Near 14 Acres

If Althorp is your anchor, these fill the rest of the stay. Pitsford Reservoir is roughly between us and Althorp and makes an easy second morning, and Brixworth Country Park sits beside it.

For a town day, Market Harborough is ten minutes from our door. Families usually add the National Space Centre for a weather-proof afternoon, and walkers should look at the Northamptonshire walking trails.

Althorp photographs via Wikimedia Commons: east front by Hazel Greenfield; lake and island, stable block, gardens and deer park by Richard Humphrey. All licensed under CC BY-SA 2.0.