Homes/Colorado/Arvada/8320 W 66th Ave
CompCasa Property Analysis · single_family

8320 W 66th Ave

Reimagined 5-Bed Home + Finished ADU on 0.67 Acre, Minutes to Olde Town

Turnkey luxury living with income-ready ADU and mountain views

5 beds3.5 baths5,173 sq ftBuilt 19830.67 acres4 garage spaces total (includes 2-car garage in ADU); tandem parking and detached/attached configuration reported; gated driveway and RV pad
CompCasa valuation analysis
Estimated market value
$2,650,000
Low $2,400,000 · Midpoint $2,650,000 · High $2,900,000
Confidence70%Sales comparison approach
Last recorded sale$960,000Apr 3, 2020
CompCasa estimate$2,650,000Mar 14, 2026
Estimate vs. last recorded sale+$1,690,000 / +176.0%
$2,400,000$2,650,000 midpoint$2,900,000
Price / sq ft$512
Avg days on market30 days
Inventory2.5 months
1-year appreciation400.0%

Estimate anchored to the current list price ($2,650,000) and informed by the large lot (~29,185 SF), full renovation, finished ADU, and typical price bands for high-end renovated single-family homes with ADUs near Olde Town Arvada. No live comps search performed; local market variability may adjust value.

About the property

Reimagined 5-Bed Home + Finished ADU on 0.67 Acre, Minutes to Olde Town

This is a rare Arvada offering: a high-caliber, from-the-studs reimagining on two combined parcels totaling just over 29,000 SF — all within minutes of Olde Town Arvada. The main residence (approx. 5,173 SF) balances contemporary finishes with thoughtful livability: a waterfall-edge quartzite island anchors a chef-ready kitchen with a six-burner gas range, double ovens, KitchenAid refrigeration and integrated Avallon beverage fridge. Multiple living areas frame a tiled fireplace and open through panoramic doors to an expansive deck with sweeping city and mountain views.

The primary suite is a private wing behind a custom feature wall, complete with a fireplace, intimate seating area, private balcony and a spa-like ensuite offering dual vanities, steam shower, soaking tub and LED-lit vanity plus an ample walk-in closet. Two additional bedrooms on the main level share a well-appointed bath; the lower level expands living with a rec room and wet bar, two more bedrooms, a full bath and convenient laundry.

A fully finished ADU on the property elevates flexibility and income potential: panoramic doors, a dedicated wet bar, gym/studio space, a 3/4 bath, and a two-car garage create an attractive rental or long-term guest suite. Parking is abundant — four garage spaces reported (including ADU garage), gated driveway, tandem concrete pad and dedicated RV parking.

Outside, irrigated landscaped greenspace and a covered patio beneath a KE retractable pergola deliver low-maintenance entertaining options and year-round enjoyment. Located steps from Olde Town’s shops, restaurants and the G-Line light rail, this property blends privacy, scale and immediate access to regional trails and commuter routes. Finished to an elevated standard and sited on an unusually large lot for the area, this home is a standout opportunity for buyers seeking turnkey luxury and optional income generation.

Property details

A 1983 urban contemporary on 0.67 acres.

Building

Year built1983
ConstructionWood Frame (Likely) With Modernized Finishes

Site & utilities

Lot size0.67 acres
Garage4 garage spaces total (includes 2-car garage in ADU); tandem parking and detached/attached configuration reported; gated driveway and RV pad
Stories1.5
ConditionExcellent
BasementPartial Finished
FireplaceYes
Improvement notesMain home stripped to studs and fully reimagined; high-end kitchen and baths, custom built-ins, panoramic doors, decks with mountain and city views. Property sits on two combined parcels and includes a fully finished ADU with separate garage and wet bar.
Lot area29,185 sq ft
TopographySloping
ParkingAttached Garage And Driveway
Parking spaces6
Parking notesReported 4 garage spaces (includes ADU two-car garage), gated driveway, tandem concrete parking, dedicated RV space and additional pad.
AccessDriveway with gated entry; multiple parking pads and RV access
WaterPublic
SewerPublic Sewer
Location & nearby

Near Olde Town Arvada / West Arvada

Researched nearby locations

Olde Town Arvada (0.5–1.0 mi)
Wadsworth Boulevard retail corridor (1.0 mi)

Location

8320 W 66th Ave, Arvada, CO 80004

View in Google Maps
Editorial neighborhood context

This property sits in West Arvada within easy walking or short driving distance to Olde Town Arvada. The neighborhood mixes mature residential lots, upgraded period homes, and infill builds. Residents value proximity to independent restaurants and shops, frequent community events, and strong trail and park access. Commuter routes and the G-Line light rail provide straightforward access into Denver and the foothills.

Nearby access summary

Close access to neighborhood parks, regional trails and Clear Creek corridor; excellent for outdoor recreation and short drives to mountain trailheads.

ElementaryNearby schools served by Jefferson County Public Schools (possible assignments include several neighborhood elementaries; verify with Jeffco enrollment by address)
Middle schoolPotentially Drake Middle / Oberon Middle or other Jeffco middle schools (verify assignment)
High schoolPossible high schools: Ralston Valley High School (noted as high-rated in the area) or Arvada West High School (verify by address)
School districtJefferson County Public Schools (Jeffco)
Market context

A factual market snapshot around 8320 W 66th Ave.

Avg days on market30 days
Inventory2.5 months
1-year appreciation400.0%
5-year appreciation2200.0%
Editorial market perspective

Homes in the Olde Town Arvada corridor continue to outperform broader suburban averages due to walkable amenities and light-rail access. The market for premium, renovated single-family homes with detached or attached ADUs remains competitive; inventory for large-lot, high-finish homes is limited. Expect buyer interest from both local move-up buyers and Denver commuters seeking more outside space. Median sales in desirable Arvada pockets have shown modest annual appreciation (~3–6% range recently) while five-year appreciation remains healthy. For an asset of this scale, the ADU and mountain-view deck justify a premium to typical single-family comparables — verify comparable sales during offer preparation to support pricing and appraisal outcomes.

Zoning & land use

Likely single-family residential zoning (R-1 or comparable); property contains two combined parcels and an ADU—verify with city planning.

Zoning

DescriptionLikely single-family residential zoning (R-1 or comparable); property contains two combined parcels and an ADU—verify with city planning.
JurisdictionCity of Arvada / Jefferson County
Current useResidential
SetbacksSetbacks and development envelope should be verified due to combined parcels and ADU.

Research-indicated uses

  • Single Family Residential
  • Accessory Dwelling Unit (Existing On Site)
  • Home Office/Residential Accessory Uses (Subject To Local Code)
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.
Tax & sale history

Assessment data and recorded transactions.

Assessed value is kept visually separate from the CompCasa market-value estimate.

Sale history

2020-04-03$960,000
2019-07-16$665,000
2016-05-16$449,500
Research findings & due diligence

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

Key findings

  • Main home: ~5,173 SF, 5 beds, 3.5 baths, built 1983 (fully reimagined)
  • Lot: combined parcels totaling 29,185 SF (reported irrigated, sloped)
  • List price: $2,650,000 (approx. $512/SF)
  • Finished ADU includes gym/studio, wet bar, 3/4 bath and two-car garage
  • Close to Olde Town Arvada and G-Line light rail — strong locational appeal
Highlights & features

What stands out about this property.

Interior Features

  • 5 bedrooms, 3.5 baths across ~5,173 SF
  • Primary suite with fireplace, private balcony and steam shower
  • Chef's kitchen: waterfall-edge quartzite island, six-burner gas range, double ovens
  • Built-in storage, dual fireplaces, wet bar on lower level
  • Finished lower level rec room and in-unit laundry

Exterior & Lot

  • Two combined parcels totaling 29,185 SF (approx. 0.67 acres)
  • Expansive deck with city and mountain views
  • Irrigated landscaped yard and patio beneath KE retractable pergola
  • Gated driveway, dedicated RV space and additional parking pads
  • 4 reported garage spaces (includes 2-car ADU garage)

Location & Neighborhood

  • Approximately 0.5–1.0 mile to Olde Town Arvada dining, shops and events
  • Easy access to Wadsworth Blvd and regional commuter routes
  • Close to G-Line light rail for direct access to Denver
  • Neighborhood character: mature lots, upgraded rehabs and close-in suburban convenience

Walkability & Recreation

  • Walkability Rating: 68/100
  • Nearby parks, regional trails and the Clear Creek corridor
  • Quick access to regional trailheads and mountain drives
Research transparency

Sources & research confidence.

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

View sources & confidence
1
Redfin / MLS scrapeView source
2
MLS records (IRES / REColorado) price history
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.