Harrow is one of those boroughs in northwest London where the edges aren’t always clear unless you know what to look for.
It’s surrounded by several other boroughs, and if you’re moving around the area, it’s good to know where Harrow ends and the next borough begins. Here’s a straightforward guide to help you out.
Harrow and Barnet
To the northeast, Harrow meets Barnet. The line between the two is pretty smooth, especially around Whitchurch Lane. As you go down this road, you’ll pass from Harrow into Barnet without much fanfare. Edgware is one of the spots where you can see this change, with the boundary running near places like Edgware Community Hospital. It’s all fairly suburban, so the shift isn’t dramatic, but it’s there.
Harrow and Brent
Down south, Harrow joins up with Brent. This boundary is easier to spot, particularly when you’re in areas like Kenton or Wembley. Kenton Road is a key point—head east, and you’re in Brent before you know it. Wembley Park, with its famous stadium, is just inside Brent, and it’s a clear marker that you’ve left Harrow behind.
Harrow and Hillingdon
To the west, Harrow bumps into Hillingdon. Here, the boundary is marked by a mix of houses and green spaces. If you’re in places like Pinner or Eastcote, you’ll notice when you’ve crossed over. Field End Road and Northwood Hills are good indicators—you’re in Harrow one minute and Hillingdon the next. The area around Ruislip is where the two boroughs really meet, shifting from Harrow’s quieter streets to Hillingdon’s more open areas.
Harrow and Ealing
In the southwest, there’s a shorter boundary between Harrow and Ealing. It’s less obvious, but you’ll feel it in spots like South Harrow and Greenford. Roads like Whitton Avenue West are the tell—move along it, and you’ll switch from Harrow to Ealing. The change here is subtle, but it’s there if you’re paying attention.
Other Borders
Besides these, Harrow also touches Hertfordshire to the north. This isn’t another London borough, but a different county altogether. Up near Stanmore and Harrow Weald, you’ll notice the urban area gives way to more countryside as you cross into Hertfordshire.
So, there you have it—a simple rundown of where Harrow ends and its neighbouring boroughs begin. The boundaries might not always be obvious, but with these tips, you’ll have a better sense of where you are as you move around.
Seamus Donaghy is a freelance writer with a strong interest in Harrow’s local history. Originally from Sligo in the Republic of Ireland, Seamus moved to Harrow with his family when he was seven years old and grew up in Wealdstone. He has lived in the borough for more than 30 years and writes about the people, places and stories that have shaped Harrow over the years.
