Castle Rock · Front Range · Colorado

A boutique brokerage with ten years of roots in Castle Rock.

Sarah Whitmore and the Summit Peak team help buyers, sellers, and landlords across Castle Rock, Castle Pines, Parker, and Larkspur. Personal attention. Local conviction.

Browse listings
10
Years in business
340+
Homes closed
$220M
In volume
180
Doors managed
Featured Castle Rock home
Avery is on the line AI receptionist · 24/7 scheduling
A decade serving Castle Rock
Locally owned
Top 1% Douglas County
Property management included
5.0 ★ on 280+ reviews
Sarah Whitmore, founder
Meet the broker

Castle Rock is home — and it's been my whole career.

I opened Summit Peak in 2016 with a simple promise: be the agent I would have wanted when I bought my first house off Wilcox Street. That means returning calls within the hour, knowing every neighborhood by its quirks, and never handing clients off.

Ten years and 340 closings later, we're still a boutique team — three agents, one property manager, and Avery, our AI receptionist. We work residential resale, new construction, and a growing book of rental properties across Douglas County.

Sarah Whitmore
Founder · Broker · Castle Rock native
Property Management

Your rental, quietly handled.

We manage 180 doors across Castle Rock, Parker, and Castle Pines — from single-family rentals to small portfolios. One flat fee, no surprise charges, and a real human you can text.

01
Tenant placementScreening, lease signing, and move-in handled end-to-end.
02
Rent collection & reportingDirect deposit by the 5th. Monthly owner statements in plain English.
03
Maintenance & turnoverVetted local trades. After-hours dispatch via Avery.
04
Renewals & market resetsAnnual rent reviews tied to actual comp data — not guesswork.
Get a management quote
By the numbers
Rolling 12 months across our portfolio
180
Doors managed
97%
Occupancy rate
22d
Avg. days to lease
8%
Flat management fee
Currently accepting new owners for the 2026 season
AI Receptionist · Meet Avery

After-hours? Weekend? Avery has the line.

Every call to our office is answered — instantly. Avery books showings, fields property questions, takes maintenance requests, and gets you on Sarah's calendar without the phone tag.

Books showings and listing consults around the clock
Answers detailed questions about active listings
Triages maintenance requests for managed properties
Hands you off to Sarah within an hour, every time
A
Avery
Online · responds instantly
Hi! This is Avery at Summit Peak. How can I help today?
I'd love to see the home on Diamond Ridge this weekend.
Wonderful — 8 Diamond Ridge Drive. I have Saturday at 10am or Sunday at 2pm with Sarah. Which works?
Saturday 10 works.
Booked. Can I grab your name and a number to text confirmation?
Areas Served

Castle Rock and the communities around it.

01
Castle Rock
HQ
02
Castle Pines
15 min north
03
Parker
20 min north
04
Larkspur
12 min south
05
Franktown
15 min east
06
Sedalia
14 min west
07
Highlands Ranch
25 min north
08
Monument
25 min south