SPSeacoast
Seacoast Professional Suites at 1150 Sagamore Avenue, Portsmouth NH

1150 Sagamore Ave · Portsmouth, NH

Executive office suites & private offices in Portsmouth, NH.

Eighteen furnished, all-inclusive suites of office space from $850/month — utilities, cleaning and fiber included. Virtual offices from $99/month and meeting rooms from $65/hour. Contact us for current availability.

  • Abundant free parking
  • Soaring 12 ft ceilings
  • Fidium Fiber internet
Schedule a Tour

Or call (603) 931-4020

Workspace options

Find the space that fits your business.

A permanent office, a business mailing address, or a room for a client meeting — all at one address with free parking.

Furnished office suite with two desks, ergonomic chairs, and large windows overlooking trees at 1150 Sagamore Avenue, Portsmouth NH

From $850/mo

Office Suites

18 furnished suites from 144–357 sq ft, with lockable doors and 24/7 access for suite members.

Details
Lobby with a curved desk, blue accent lighting and a textured white feature wall at Seacoast Professional Suites, Portsmouth NH

From $99/mo

Virtual Offices

A Portsmouth business mailing address with mail handling, plus optional meeting-room time.

Details
Conference room with a long black table, mesh chairs, blue accent wall, and large windows

From $65/hr

Conference Rooms

A Presentation & Event Room seating up to 30 plus two Main Wing conference rooms seating 10 each — by the hour or day.

Request a roomDetails

Pricing at a glance

Office suites

from $850/mo

Window suites from $975

Whole Suite 2

from $6,500/mo

Turnkey 3,000 SF suite, all-inclusive

Virtual offices

from $99/mo

Virtual Office Plus $199

Meeting rooms

from $65/hr

Presentation & Event Room $95/hr or $600/day

Also available: Day Pass $35/day · Flex Desk $250/month · Dedicated Desk $475/month. One month free on a 12-month suite agreement.

See full pricing

Featured suites

18 furnished suites, grouped in two wings.

Rates are all-inclusive — utilities, fiber internet, cleaning, kitchen, and free on-site parking. Contact us for current availability.

Signature

Suite 101

The Turret Suite

Available now
357 sq ft
Seats 4
  • Ensuite half-bath
  • Wet bar
  • Fireplace

$2,500/mo

All-inclusive

Suite 108

Large Corner

Available now
237 sq ft
Seats 3

$1,350/mo

All-inclusive

Suite 123

Larger interior team suite

Available now
273 sq ft
Seats 4

$1,150/mo

All-inclusive

Suite 124

Interior · best value

Available now
168 sq ft
Seats 2

$850/mo

All-inclusive

View all 18 suites & floor plan

Cooperating brokers welcome — commission offered.

Signature · Suite 101

The Turret Suite

357 sq ft, seats 4 — a corner turret with a dramatic vaulted turret ceiling.

  • Ensuite half-bath
  • Built-in wet bar
  • Working fireplace
  • Vaulted turret ceiling

$2,500/mo all-inclusive

License a whole suite

Suite 2 — a turnkey 3,000 SF suite.

  • 7 furnished offices plus an interior flex room (conference, media/podcast studio, or extra office)
  • Kitchenette and private entrance
  • Turnkey for teams of 16–20

from $6,500/mo all-inclusive

Included with office suites

Built for serious work — without the corporate sterility.

Office suite rates are all-inclusive. Virtual office and coworking plans include the specific features listed for each plan.

  • Fidium Fiber Wi-Fi

    Hardwired and wireless on a business-grade network.

  • Stocked kitchen

    Premium coffee, tea, and filtered water — on us.

  • Print, scan & mail

    Black & color printing, scanning, and secure mail receipt.

  • Lobby & waiting area

    A bright lobby where your clients can wait comfortably.

  • 24/7 Kisi keyless entry

    For suite members — Kisi app keyless building entry (iPhone & Android), a private keyed lock on every suite, alarm-monitored, and a well-lit lot.

  • Free on-site parking

    An open surface lot with plenty of free spaces for you, your team, and your visitors.

Who we're built for

A professional home for Seacoast attorneys, advisors, and growing firms.

A credible place to meet clients

A quiet, polished building with a proper waiting area and a Presentation & Event Room seating up to 30.

Parking is never the problem

Free on-site parking means your clients and guests pull right up — no meters, no garages.

Turnkey, month-to-month

Furnished suites with fiber internet and cleaning included. Move in and get to work.

Interior foyer at Seacoast Professional Suites with glass-walled meeting rooms and soaring ceilings

Where we are

Seacoast office suites with a Portsmouth address.

Our furnished office suites at 1150 Sagamore Avenue in Portsmouth, NH are convenient to Rye, New Castle, Greenland, and Kittery, Maine. A professional place to work and meet clients, with free on-site parking and easy access to I-95.

  • · Minutes from downtown Portsmouth
  • · Close to New Castle and Rye Beach
  • · Easy access to I-95 and Pease Tradeport
Get directions

FAQ

Questions about our Portsmouth office suites.

Check availability

Ask about current availability.

Tell us what you're looking for and we'll reply within one business day with what's open and pricing.

Ready to visit? Schedule a tour · Need a meeting room? Request a room

We respect your privacy. See our Privacy Policy.

  • Abundant free parking

    On-site, no meters or garages

  • Fidium Fiber internet

    Business-grade, included

  • Minutes from downtown

    Portsmouth, Rye & New Castle nearby

  • 20-minute tours

    Free on-site parking for visitors

Ready to see the space?

Book a private 20-minute tour — free on-site parking for visitors.

Schedule a Tour View Pricing

Call (603) 931-4020 · Cooperating brokers welcome — commission offered.