Directions to the UNH-IOL

We are located at:

21 Madbury Rd., Ste 100
Durham NH 03824

Our main entrance is located at the end of the building closest to the Pettee Brook town parking lot, opposite Madbury Road, where you may have turned into our visitor parking area.

Please note parking is limited at our new facility - please arrange larger groups with us ahead of time or visit the Visitor Parking section for more information.

View of Madbury Commons from the side

UNH-IOL at Madbury Commons

From Boston, MA (driving time: ~70 min)

  • Follow I-95N to Exit 4 for NH (NH Lakes and Mountains/Spaulding Turnpike).
  • Exit 4 off 95N is a left hand exit. Continue North to Exit 6W and follow Route 4W.
  • Continue on Route 4W for approximately 5 miles then turn left at the traffic light onto Madbury Rd.
  • Continue on Madbury Road until you have arrived at 21 Madbury Rd. We are on your right.

From Manchester, NH (driving time: ~60 min)

  • Follow I-93S to Exit 7 to merge onto NH-101E toward Seacoast/Portsmouth.
  • Continue on NH-101 for about 19 miles, then take Exit 7 for NH-125 toward Epping/Kingston.
  • Follow NH-125 until you reach the Lee Traffic Circle, then take the first exit onto US-4E.
  • Continue on US-4E for about 4 miles, then take a right at the lights to turn onto Madbury Rd.
  • Continue on Madbury road until you have arrived at 21 Madbury Rd. We are on your right.

From Portland, ME (driving time: ~60 min)

  • Take I-295 S to I-95 S.
  • Continue on I-95 S until Exit 5 to merge onto NH-16N/US-4 toward Newington/Dover.
  • Take exit 6W for US-4W toward Durham/Concord.
  • Continue on US-4W for about 5 miles, then turn right at the traffic light onto Madbury Rd.
  • Continue on Madbury road until you have arrived at 21 Madbury Rd. We are on your right.

From Concord, NH (driving time: ~45 min)

  • Take US-4E.
  • Continue on US-4E for about 4 miles, then turn right at the traffic light onto Madbury Rd.
  • Continue on Madbury road until you have arrived at 21 Madbury Rd. We are on your right.

Visitor Parking

Planning a quick visit?

IOL Designated Visitor Parking Spaces: There are a limited number of IOL-only designated visitor spaces located in front of the building. In order to use this parking, please confirm with your IOL contact to reserve a parking space.

Town Hourly Parking: There are several meter spaces located in front of the Madbury Commons along Madbury Rd. or in the Pettee Brook Town Lot and along Pettee Brook Ln. We also have a Visitor Parking Map to help you find your way.

Attending a plugfest or a weekly event?

Upon registration, you will be contacted by the event organizer with parking code and instructions.

UNH Mill Road Visitor Parking: From our location turn right onto Pettee Brook Ln. At the fork bear left onto Main St. and take your first right onto Mill Rd. you will see the Mill Rd. Visitor Lot on your right. We also have a Visitor Parking Map to help you find your way.

Walking directions to the UNH-IOL (approx. 5 min):

  • Exit the parking lot, turn left onto Mill Rd. to Main St.
  • Turn left on Main St. and take a right onto Jenkins Ct.
  • Continue until the end of the road and walk left onto Pettee Brook Ln
  • You will see a parking lot on your right
  • Walk through the lot and use the walking bridge (you will see a sign for Madbury Commons)
  • The IOL will be on your left once up the stairs