CompCasa Property Analysis · single_family

Back Nine Dr

One-Level Living with Huge Basement, Backs to Open Space

Modern 2018 home with upscale finishes and major finish-the-basement upside

3 beds2 baths3,938 sq ftBuilt 20180.146 acresAttached garage with interior entry / mudroom access (per listing description); scraper garage flag inconsistent.
CompCasa valuation analysis
Estimated market value
$777,500
Low $745,000 · Midpoint $777,500 · High $810,000
Confidence65%Sales comparison approach
CompCasa estimate$777,500Mar 12, 2026
$745,000$777,500 midpoint$810,000
Price / sq ft$197
Median sale price$820,000
Avg days on market30 days
Inventory2.5 months

Estimate anchored to the list price ($775k) and AVM (~$778k) from scraped data; range +/- ~4-5% to reflect local market variability and large unfinished basement value-add potential. No live comparable sales search performed.

About the property

One-Level Living with Huge Basement, Backs to Open Space

This impeccably maintained 2018 single-level plan delivers comfortable everyday living with an exceptionally large unfinished basement ready to elevate your square footage and resale value. Situated on a mid-block lot that backs to open space, the home presents stunning curb appeal and a private rear aspect — perfect for quiet evenings on the covered back deck.

Step inside to an extended entry and an open great room concept that accommodates multiple seating areas and a dining table for eight. Thoughtful details include 9' ceilings (10' in some recessed areas), engineered wood floors in the main living spaces, and a corner fireplace with a refined marble surround. The kitchen was designed for both function and entertaining: 42" maple perimeter cabinetry, slab granite counters, a curved island with seating for three, a walk-in pantry, and upgraded appliances including an LG InstaView refrigerator and GE gas range and dishwasher.

Three bedrooms provide flexibility. Two sizable secondary bedrooms are at the front of the home and share a full hall bath with storage. The primary suite is private, large enough for generous bedroom furniture, and opens to a luxurious five-piece bath with dual vanities, soaking tub, separate shower, water closet, and a Toto WASHLET bidet. The walk-in closet offers abundant storage. A dedicated laundry area with front-loading washer/dryer and a mudroom with bench and cubbies at the garage entry add real-world convenience.

The lower level is a major differentiator: a huge full basement that mirrors the main level and already has ceiling drywall in place and mechanicals positioned for a straightforward finish. Whether you plan a media room, guest suite, home gym, or rental income suite (subject to local approvals), the basement materially improves the home's utility and value without the premium cost of above-grade square footage.

Practical upgrades, quality finishes, and a location that combines quiet open-space views with access to Castle Pines amenities make this a compelling buy for downsizers, growing families, or buyers seeking value-add upside. Schedule a showing and tour both the polished main level and the substantial basement opportunity.

Property details

A 2018 single family on 0.15 acres.

Building

Year built2018
ConstructionWood Frame With Typical Stucco/Stone/Veneer Siding (Typical For Castle Pines Single Family Homes)
RoofAsphalt Shingle (Typical)
Heatingforced air (gas likely)
Coolingcentral air (likely)

Site & utilities

Lot size0.146 acres
GarageAttached garage with interior entry / mudroom access (per listing description); scraper garage flag inconsistent.
Stories1 main level + full basement
ConditionGood
BasementFull
FireplaceYes
Improvement notesMain living is one-level great room plan with 9' ceilings (10' in recessed areas), engineered wood flooring, corner fireplace with marble surround, upgraded appliances, covered back deck. Large unfinished full basement ready for finish.
Lot area6,360 sq ft
TopographyLevel
FrontageMid-block lot that backs to open space; curb appeal with manicured landscaping per listing description.
ParkingAttached Garage And Driveway
Parking spaces2
Parking notesListing description references a garage entry and mudroom; the scraper parking flag is inconsistent. Expect attached 2-car garage typical for product and neighborhood.
AccessStandard residential street access (Back Nine Dr); likely direct access to neighborhood streets and residential circulation.
WaterMunicipal (Castle Pines / Douglas County Municipal Water Likely)
SewerPublic Sewer (Likely)
ElectricXcel Energy (Likely)
GasNatural Gas (Likely)
Location & nearby

Castle Pines (golf/back-nine area / near open space)

Researched nearby locations

Castle Pines Golf Club (within 1 mile)
Castle Pines Village & community parks (1-3 miles)

Location

186 Back Nine Dr, Castle Pines, CO 80108

View in Google Maps
Editorial neighborhood context

Castle Pines is an established, upscale suburban community in Douglas County known for wide streets, mature landscaping, and strong lifestyle amenities including golf, trails and parks. Residents value privacy, outdoor access, and proximity to Parker and Denver commute corridors. The area skews toward families and professionals seeking single-family homes with quality construction and nearby recreational opportunities.

Nearby access summary

Excellent access to trails, open space, and golf; ideal for buyers who prioritize outdoor recreation and low-maintenance yards.

ElementaryVaries by address — assigned schools are in Douglas County School District RE-1; typical nearby options include local elementary schools in Castle Pines / Parker (confirm with district)
Middle schoolVaries by address — nearby middle schools in Douglas County (confirm assignment)
High schoolVaries by address — ThunderRidge HS / Castle View HS or other Douglas County high schools may serve parts of Castle Pines (confirm assignment with DCSD)
School districtDouglas County School District (DCSD / Douglas RE-1)
Market context

A factual market snapshot around Back Nine Dr.

Median sale price$820,000
Avg days on market30 days
Inventory2.5 months
1-year appreciation400.0%
5-year appreciation1800.0%
Editorial market perspective

Castle Pines remains one of Douglas County's desirable suburban enclaves with steady buyer interest for well-built single-family homes. In 2026 the local market is still favoring sellers in many price bands given limited inventory and sustained demand from buyers seeking proximity to open space and quality schools. Median prices in the general Castle Pines/nearby Parker corridor cluster near the $750K–$900K band; homes with one-level plans and unfinished basements commonly trade competitively because they serve both downsizers and families who want room to grow. For this property, the finished main level delivers immediate move-in comfort; finishing the large basement will likely generate an outsized incremental return compared with comparable above-grade additions. Buyers should act decisively — a combination of modern construction (2018), tasteful finishes, and the location backing to open space creates persistent buyer interest.

Zoning & land use

Single-family residential neighborhood zoning; lot size consistent with suburban single-family lots in Castle Pines.

Zoning

Zoning codeResidential - single-family (likely R-1/R-E or community-specific zone)
DescriptionSingle-family residential neighborhood zoning; lot size consistent with suburban single-family lots in Castle Pines.
JurisdictionDouglas County / City of Castle Pines
Current useResidential

Research-indicated uses

  • Single Family Detached Residential
  • Accessory Structures Per Local Code
  • Home Occupation Subject To Restrictions
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

  • List price: $775,000; AVM ~ $778,400 (source data)
  • Living area ~3,938 sq ft; price per sf about $197
  • 3 bedrooms, 2 baths on main level; primary bathroom is 5-piece
  • Full unfinished basement ready for finish — reduces marginal cost of added livable space
  • Property backs to open space and sits on a mid-block lot; lot ~6,360 sqft
Highlights & features

What stands out about this property.

Interior Features

  • One-level living with private primary suite
  • 9' ceilings (10' in recessed areas) and engineered wood flooring in main entertaining spaces
  • Corner fireplace with marble surround
  • Kitchen with 42" maple cabinets, slab granite counters, curved island, walk-in pantry
  • Upgraded appliances: LG InstaView refrigerator, GE gas range, GE dishwasher, GE microwave
  • Five-piece primary bath with soaking tub, separate shower and Toto WASHLET bidet
  • Laundry with front-loading washer/dryer
  • Huge unfinished full basement ready for finish

Exterior & Lot

  • Mid-block lot (~6,360 sqft) backing to open space
  • Covered back deck off dining room
  • Manicured exterior landscaping
  • Attached garage with interior entry and mudroom

Location & Neighborhood

  • Castle Pines community — close to golf, trails, parks
  • Short drive to Parker and regional amenities
  • Douglas County public schools (assignment varies by address)
  • Low-traffic residential street

Walkability & Recreation

  • Walkability Rating: 30/100
  • Nearby open space and walking trails (high recreation access)
  • Close to Castle Pines Golf Club and neighborhood parks
Research transparency

Sources & research confidence.

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

View sources & confidence
1
Redfin scraped JSONView 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.