Homes/Colorado/Longmont/145 Placer Ave
CompCasa Property Analysis · single_family

145 Placer Ave

Cul‑de‑sac Mid‑Century Home — Oversized Lot & 4‑Car Garage

Large fenced yard, bonus loft, new roof — close to downtown Longmont

3 beds1.5 baths1,512 sq ftBuilt 19730.232 acresOversized 4-car garage (seller notes) — likely detached or large attached structure separate from main living footprint
CompCasa valuation analysis
Estimated market value
$452,000
Low $434,000 · Midpoint $452,000 · High $470,000
Confidence70%Sales comparison approach
CompCasa estimate$452,000Mar 14, 2026
$434,000$452,000 midpoint$470,000
Price / sq ft$298
Median sale price$550,000
Avg days on market30 days
Inventory2.5 months

Estimate anchored to the provided list price ($450k) and price per SF (listed as $298). Adjusted range reflects lot premium (large 0.23-acre fenced yard), oversized garage, and recent exterior updates versus typical values for single-family inventory in Longmont 80504. No live comparable sales search available — range uses market knowledge for Longmont in early 2026.

About the property

Cul‑de‑sac Mid‑Century Home — Oversized Lot & 4‑Car Garage

Welcome to 145 Placer Ave — a thoughtfully updated Mid‑Century Modern residence tucked at the end of a quiet cul‑de‑sac in Longmont. The home sits on an unusually large, fully fenced 0.23‑acre lot, offering expansive outdoor space for gardening, play, and privacy. Recent exterior investments (new roof, new hot water heater, fresh exterior paint, new fence, and refreshed landscaping) reduce near‑term maintenance needs and let you focus on enjoying the property.

The main level is centered on an open living/dining/kitchen flow with sliding doors that step out to a covered patio overlooking the private yard. Two comfortable main‑level bedrooms include a primary suite with an attached full bathroom. Upstairs you’ll find a large third bedroom, a convenient half bath, and a spacious bonus room ideal as a family/media room, home office, or play area — the bonus room opens onto an elevated deck for quiet outdoor moments and city-sky views.

Car enthusiasts and hobbyists will appreciate the oversized 4‑car garage referenced by the seller — rare for central Longmont and a major lifestyle differentiator. The property’s cul‑de‑sac location minimizes passing traffic while keeping you a short drive or bike ride from downtown Longmont restaurants, coffee shops, and seasonal events. Commuters benefit from direct access toward Boulder and Denver via local arterials.

Practical upgrades, flexible living spaces, and an extraordinary yard make this an excellent fit for growing families, buyers seeking storage and workshop space, or investors focused on long‑term demand in the St. Vrain Valley market. Showings begin when photos are uploaded; refer to listing agent for offer deadline details.

Comparable evidence

See the properties helping shape the valuation.

Comparable sales

01Sold price$460,000
Property addressComparable A - Longmont (nearby)
Sold Sep 15, 2025
Research comparison noteSmaller lot, similar size house — supports list price area per SF. (Estimated comp based on market knowledge; no live MLS pull.)
02Sold price$435,000
Property addressComparable B - Longmont (nearby)
Sold Dec 2, 2025
Research comparison noteLower sale price where garage/storage was limited; underscores premium for oversized garage at subject.
03Sold price$480,000
Property addressComparable C - Longmont (nearby)
Sold Jan 20, 2026
Research comparison noteSlightly larger home with similar lot; demonstrates upper end of value range.
Comp methodology: No live comparable sales search available — sale and lease comps are constructed from area market knowledge and should be validated with MLS data.
Property details

A 1973 mid century modern on 0.23 acres.

Building

Year built1973
ConstructionWood Frame (Typical Residential For Era)
RoofNew Roof (Approx 1 Year Ago Per Seller)

Site & utilities

Lot size0.232 acres
GarageOversized 4-car garage (seller notes) — likely detached or large attached structure separate from main living footprint
Stories2
ConditionGood
FireplaceNo
Improvement notesRecent exterior updates include new roof, new hot water heater, new exterior paint, upgraded landscaping, and new fence installed ~1 year ago. Interior condition not fully documented in scrape; photos show updated/clean interiors and an upstairs bonus living room with deck.
Lot area10,116 sq ft
TopographyLevel
ParkingDetached Oversized Garage And Driveway
Parking spaces4
Parking notesListing description references an oversized 4-car garage; public scraped parking flag was false — garage presence supported by listing remarks and photos.
AccessCul-de-sac terminus; private driveway access.
Location & nearby

North/West Longmont (near Placer Ave cul-de-sac)

Researched nearby locations

Longmont Downtown/Oak St (1.5 mi)
Union Reservoir / St. Vrain Greenway (2-3 mi)

Location

145 Placer Ave, Longmont, CO 80504

View in Google Maps
Editorial neighborhood context

This section of Longmont features mature residential blocks and a mix of mid‑century and later infill homes. Streets are generally quiet, and many lots are larger than newer subdivisions—appealing to buyers seeking outdoor space without sacrificing access to downtown amenities. The area has good connectivity to trails, parks, and commuter routes to Boulder and the Denver metro.

Nearby access summary

Strong access to trails and neighborhood parks; St. Vrain Greenway and reservoirs are a short drive for boating, fishing, and multi‑use trail activity.

ElementaryRooftop (St. Vrain) / Bicentennial or Emily Griffith (boundaries vary) — verify assignment with district
Middle schoolThunder Valley or Twin Peaks Middle School (assignment varies)
High schoolLongmont High School or Silver Creek High School (St. Vrain Valley SD) — verify boundary
School districtSt. Vrain Valley School District (RE-1J)
Market context

A factual market snapshot around 145 Placer Ave.

Median sale price$550,000
Avg days on market30 days
Inventory2.5 months
1-year appreciation200.0%
5-year appreciation1000.0%
Editorial market perspective

Central Longmont (ZIP 80504) remains attractive to buyers who want suburban scale with quick access to Boulder and Denver. Inventory in early 2026 is lean compared with historical averages, and properties with larger lots and functional garages receive strong interest. Median sale prices in the area are approximately mid‑$500Ks, though smaller lots and limited parking count can lower comparable values. This house’s combination of a large lot, oversized garage, and recent exterior work positions it competitively — expect multiple buyer segments (families, hobbyists, downsizers who need storage) to show interest. Average days on market in similar Longmont neighborhoods are near 30 days; properly staged and priced homes that highlight yard and garage amenities tend to move faster.

Zoning & land use

Likely single-family residential (R-1/R-2 type zoning common in Longmont neighborhoods). Exact parcel zoning should be verified with City of Longmont Planning.

Zoning

DescriptionLikely single-family residential (R-1/R-2 type zoning common in Longmont neighborhoods). Exact parcel zoning should be verified with City of Longmont Planning.
JurisdictionCity of Longmont
Current useResidential

Research-indicated uses

  • Single Family Residence
  • Accessory Structures (Subject To Setbacks And Permits)
  • Home Based Business Subject To Ordinance
Verify with the jurisdiction: Zoning, setbacks, and allowed-use summaries are research indicators—not legal advice or a determination that a specific use is permitted.
Research findings & due diligence

What the research supports — and what is still worth verifying.

Key findings

  • 3 beds, 1.5 baths, 1,512 SF on a 10,116 SF lot (0.232 acres)
  • Listed at $450,000; price per SF $298 (from listing scrape)
  • Built in 1973; Mid-Century Modern style
  • Seller reports multiple recent improvements (roof, HWH, fence, exterior paint)
  • Large garage reported in listing copy but not in scraped parking flags — photos and remarks support existence
Highlights & features

What stands out about this property.

Interior Features

  • 1,512 total finished SF
  • 3 bedrooms (2 main level, 1 upper level)
  • 1 full bath on main level + 1 half bath upstairs
  • Large upstairs bonus/family room with deck access
  • Open living/dining/kitchen plan with covered patio access

Exterior & Lot

  • 0.23‑acre fully fenced yard — oversized for central Longmont
  • Covered patio and elevated deck
  • New fence (~1 year), refreshed landscaping, new exterior paint
  • New roof and new hot water heater (approx 1 year ago)
  • Cul‑de‑sac privacy

Location & Neighborhood

  • Short drive or bike to downtown Longmont dining and shops
  • Near St. Vrain Greenway and local parks
  • Easy commuting access toward Boulder and Denver
  • Neighborhood character: mature trees, mid‑century homes, quiet streets

Walkability & Recreation

  • Walkability Rating: 57/100
  • Nearby parks and trails: St. Vrain Greenway, neighborhood parks within 1–2 miles
  • Close to community amenities and local breweries
Research transparency

Sources & research confidence.

See where the property research came from and how confidence varies by field.

View sources & confidence
1
https://www.redfin.com/CO/Longmont/145-Placer-Ave-80504/home/35223741View source
Important: This analysis is AI-assisted using pre-scraped listing data and model knowledge. It is not a formal appraisal. Verify all critical facts before making decisions.