Updated two-unit property located close to downtown Peterborough. Unit A, on the first floor, offers 2 bedrooms plus a bonus room that could serve as an office, dining room, or additional living space. Unit B offers 2 bedrooms and 1 bath. Both units feature renovated kitchens and bathrooms, updated flooring and paint, and washer/dryer hookups. Significant improvements completed in 2025-2026 include a new roof, 22 replacement windows, plumbing updates, exterior painting, and a fully updated 400-amp electrical service with separate panels for Unit A, Unit B, and house/common areas so plenty of availability to add Mini-splits if desired. Primary heat is electric with a shared oil furnace retained for backup. Off-street parking. The property retains the character and some of the quirks of an 1800s home while benefiting from substantial recent updates. Seller is a licensed real estate agent.

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Basic Information

PricePerSqFt272.73

Building

Year Built1865
Building ConstructionWood Frame, Clapboard Exterior
StyleDuplex, Multi-Family, New Englander
Units2
Unit 1 Bath1
Unit 1 Bedrooms2
Unit 1 Floor Location1
Unit 1 Total Rooms4
Unit 2 Bath1
Unit 2 Bedrooms2
Unit 2 Floor Location2
Unit 2 StyleFlat - upstairs
Unit 2 Total Rooms4
# of 2 Bedrooms2
Bathroom2
Total Baths2
BasementCrawl Space, Gravel, Partial, Interior Access
FoundationFieldstone

Tax Information

Tax Year2025

Location

TownPeterborough
StateNH
Zip03458
CountyHillsborough
ZoningGR — General Residence
Address15 Union Street
Flood Zone Y/NNo

Exterior

RoofAsphalt Shingle

Utilities

Heat SystemElectric, Forced Air
WaterPublic
Water HeaterElectric Water Heater
Electric200+ Amp Service
SewerPublic
UtilitiesCable Available

Basic Information

StatusACT
List Price$495,000
Date Price Change09/21/2026
MLS Number5110751
MLS StatusActive

Property

Acreage0.21
GarageNo
Parking Spaces
Lot DescriptionSidewalks, In Town, Near Shopping, Near School(s)
LotN/A
Square Feet1,815
APX Fin AG Sqft1,815
Road Frontage88
RoadsPaved, Public
AreaNH-Hillsborough

Other

Taxes$7,265
Seasonal Y/NNo
Date Listed09/21/2026

Copyright 2026 PrimeMLS, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this display comes in part from the IDX Program of PrimeMLS. The information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated September 22, 2026 7:37 AM UTC

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15 Union StreetPeterborough, NH 03458MLS Number 5110751

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15 Union StreetPeterborough, NH 03458MLS Number 5110751

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