# 20 S 1St Avenue, Marshalltown, IA 50158 > **TL;DR:** commercial, $154,900, built 1890. > A/C. Est. $828/mo. Listed 163 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $154,900 | | Year Built | 1890 | | Lot Size | 5,227 sqft (0.12 acres) | | Property Type | Commercial (Other) | | Status | Active | | Days on Market | 163 | ## Estimated Monthly Costs | Category | Amount | |----------|--------| | Principal & Interest (20% down, 30-year at 6.5%) | $783 | | Estimated Insurance | $45 | | **Total** | **$828** | ## Key Amenities - A/C ## Property Highlights - Built in 1890 - 0.12 acre lot ## Description ### Agent Description Located in the heart of Historic Downtown Marshalltown, this beautifully restored commercial office building sits just east of the courthouse in the revitalized downtown district. Originally built in 1890, the property has been thoughtfully restored and remodeled with modern conveniences while preserving its historic character and charm. The building is in exceptional condition and offers outstanding flexibility for a variety of professional, retail, or business uses. The main floor features an inviting reception area, conference room, and private office space designed for both functionality and client convenience. The conference room includes a wet bar with a mini refrigerator, creating an ideal setting for client meetings or employee gatherings. Upstairs, you'll find four additional private offices, while the lower level offers partially finished space along with ample storage areas. A walk-up attic provides additional storage space. Private parking spaces offer added convenience for staff and clients alike. Ideally situated near multiple attorney offices, banks, abstract companies, and the central business district, the property also offers quick access to Highways 14 and 30, making it convenient for clients and employees traveling throughout the region. Within walking distance to restaurants, shops, coffee houses, and all the amenities of downtown, this property combines timeless architecture, modern updates, and a prime location in one exceptional opportunity. ## Location - **Address:** 20 S 1St Avenue, Marshalltown, IA 50158 - **County:** Marshall - **Neighborhood:** MARSHALL ORIGINIAL TOWN OF - **Coordinates:** 42.048413, -92.911021 - **Google Maps:** https://www.google.com/maps?q=42.048413,-92.911021 ## Virtual Tour & Media - **Video Tour:** https://customer-a2w2ng2dptu8jhre.cloudflarestream.com/a8db5ed27395d47d41d46f160fcd125a/downloads/default.mp4?filename=20%5FS%5F1st%5FAve%5FUNBRANDED%2Emp4 ## Listing Agent - **Name:** Kristin Polley - **Brokerage:** Five Star Real Estate Group - **Broker Phone:** (641) 751-6338 ## Photos ![20 S 1St Avenue - Photo 1](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f325575500r.jpg) ![20 S 1St Avenue - Photo 2](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3338773658r.jpg) ![20 S 1St Avenue - Photo 3](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3145441006r.jpg) ![20 S 1St Avenue - Photo 4](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2611020708r.jpg) ![20 S 1St Avenue - Photo 5](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f523607884r.jpg) ![20 S 1St Avenue - Photo 6](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f1806971185r.jpg) ![20 S 1St Avenue - Photo 7](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2751198705r.jpg) ![20 S 1St Avenue - Photo 8](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3940310144r.jpg) ![20 S 1St Avenue - Photo 9](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3321748046r.jpg) ![20 S 1St Avenue - Photo 10](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2247470946r.jpg) ![20 S 1St Avenue - Photo 11](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2094170895r.jpg) ![20 S 1St Avenue - Photo 12](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f878309775r.jpg) ![20 S 1St Avenue - Photo 13](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2338361039r.jpg) ![20 S 1St Avenue - Photo 14](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3176484565r.jpg) ![20 S 1St Avenue - Photo 15](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2270417636r.jpg) ![20 S 1St Avenue - Photo 16](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f502116275r.jpg) ![20 S 1St Avenue - Photo 17](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2365306582r.jpg) ![20 S 1St Avenue - Photo 18](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3009731538r.jpg) ![20 S 1St Avenue - Photo 19](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f1122922923r.jpg) ![20 S 1St Avenue - Photo 20](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3444097002r.jpg) ![20 S 1St Avenue - Photo 21](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3243446983r.jpg) ![20 S 1St Avenue - Photo 22](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f775222040r.jpg) ![20 S 1St Avenue - Photo 23](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f194454237r.jpg) ![20 S 1St Avenue - Photo 24](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2564551697r.jpg) ![20 S 1St Avenue - Photo 25](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f1437251832r.jpg) ![20 S 1St Avenue - Photo 26](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f4265110476r.jpg) ![20 S 1St Avenue - Photo 27](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2524372419r.jpg) ![20 S 1St Avenue - Photo 28](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f4084020682r.jpg) ![20 S 1St Avenue - Photo 29](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2990587776r.jpg) ![20 S 1St Avenue - Photo 30](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3811744418r.jpg) ![20 S 1St Avenue - Photo 31](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2577488644r.jpg) ![20 S 1St Avenue - Photo 32](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f1930129474r.jpg) ![20 S 1St Avenue - Photo 33](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3978192557r.jpg) ![20 S 1St Avenue - Photo 34](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2990781728r.jpg) ![20 S 1St Avenue - Photo 35](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2659930027r.jpg) ![20 S 1St Avenue - Photo 36](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f4021122103r.jpg) ![20 S 1St Avenue - Photo 37](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f1690254149r.jpg) ![20 S 1St Avenue - Photo 38](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f2720690525r.jpg) ![20 S 1St Avenue - Photo 39](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f3120747225r.jpg) ![20 S 1St Avenue - Photo 40](http://lh.rdcpix.com/380ecc3c207113a9b3fcfc0515076c60l-f1575732480r.jpg) --- **MLS#:** 6338476 | **Updated:** 2026-10-20 **Source:** listhub *Copyright © 2026 NoCoast MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.* [View on PropertySimple](https://staging.propertysimple.ai/listing/20-s-1st-avenue-marshalltown-ia-50158-47f401125e0f4d04b4e11dfe2dd4a30d) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://staging.propertysimple.ai/listing/20-s-1st-avenue-marshalltown-ia-50158-47f401125e0f4d04b4e11dfe2dd4a30d#listing", "url": "https://staging.propertysimple.ai/listing/20-s-1st-avenue-marshalltown-ia-50158-47f401125e0f4d04b4e11dfe2dd4a30d", "name": "20 S 1St Avenue, Marshalltown, IA 50158", "description": "Located in the heart of Historic Downtown Marshalltown, this beautifully restored commercial office building sits just east of the courthouse in the revitalized downtown district. 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