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TRUSTED BY DIAMOND BAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon26
    Verified property appraisals reviews

Top-Rated Property appraisers in Diamond Bar - Updated Nov 2026

Avatar for Penny Smith Realtor/Appraiser
Penny Smith Realtor/Appraiser
5.0(
183
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1978

Customers say: True professional

"This was an appraisal of a older condominium unit in a gated Southern California beach community for a trust administration. Unusual in that Penny did not have access to interior of the unit she had to appraise. She was very thorough in her research of the complex, and inspected a similar unit that was on the market, in addition to reviewing prior sales records and condition of the unit she appraised. Her comps were very good and it was clear that she'd done her due diligence to discern the appropriate sales, given the three different areas of buildout in the complex. She made a balanced and fair valuation of the property which was important for me to have as the Trustee, and reported on her considerations in good detail."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+23

Response time7 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for James Beggs
James Beggs
4.9(
28
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2003

Free estimates

Small jobs welcome

"Angi is like a crazy one night stand that won't go away once she gets your number but the appraiser was very professional, knowledgeable, efficient and responsive."
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for NorthStar Appraisal Services
NorthStar Appraisal Services
4.7(
92
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"Jeanine was prompt, pleasant, and professional. She measured and photographed all aspects of the property. Appraisal report was prompt as promised. Would recommend this service."
 Front/street view
 Views, location, custom homes, upgrades
 Some of the views
 Back of home
 Master BR of one of the homes

+14

Response time2 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Randy M. Sonns, Certified Residential Appraiser
Randy M. Sonns, Certified Residential Appraiser
4.7(
180
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1992

Free estimates

Customers say: Quick response

"I needed to have a fair and unbiased appraisal by a certified appraiser to assess property values as of the date of my mother's passing. I spoke with Randy and by the answers he gave to my questions, I determined he was the right professional to engage with. His reports were consistent in methodology, clearly explained in each category, and well accepted by my estate attorney for the exercise. Beyond that, he was professional with his dealings with me and did not hesitate to take the necessary time to ensure I understood the appraisal contents."
Response time8 hrs
6 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Carlton Haugh Appraisal Services
Carlton Haugh Appraisal Services
5.0(
55
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1994

Free estimates

Offers commercial services

"Professional, courteous, and knowledgeable about appraisals. Was available within a few days of our first contact and arrived on time to the properties. One of the rental properties' tenants was abrasive and obnoxious but Carlton maintained his composure."
Response time5 hrs
Response rate96%
18 neighbors recently requested a quote
Avatar for Crossroad Properties
Crossroad Properties
4.9(
7
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quality work

"Lonnie Apfel responded in a very timely manner when I called and requested a speedy appraisal of my property. Very professional and courteous. Thank you Lonnie for your in-depth market analyst in the value of my property plus the other related advice you gave me. I highly recommend Lonnie Apfel for your real estate needs."
Crossroad Properties
Crossroad Properties
Crossroad Properties
Crossroad Properties
Crossroad Properties

+2

Response time10 mins
Response rate88%
Recommended by100%of homeowners
Avatar for SIMMONS STREET, INC.
SIMMONS STREET, INC.
5.0(
4
)
Appraisal - Real Estate

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2013

Free estimates

Small jobs welcome

"Nick did a great job with my home appraisal. Professional, knowledgable, and easy to work with. I would definitely recommend. He was also able to turn the report around quickly and answered any question I had right away."
Response time3 hrs
Response rate96%
5 neighbors recently requested a quote
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Property Appraiser FAQs, answered by experts

In most cases, installing a tennis court on your property will drive up your property taxes. Property taxes are determined, in part, based on improvements made to your property, which includes anything with a permanent foundation. Since most home tennis courts include a large concrete foundation, your property taxes will likely increase following the installation. A general rule of thumb is that if your project requires permits—like for a foundation or fencing for a tennis court—then your property taxes will be affected.

If installing board and batten fixes an issue with the home, it could increase the value, but it isn’t commonly installed for that purpose. Board and batten is an aesthetic choice and, like most aesthetic choices, will do little to raise your home’s value. That being said, certain design elements can help attract more buyers, even if your home’s price won’t see a noticeable bump. 

A comprehensive smart home system can be really attractive to buyers and increase the value of your property. Components such as a smart security system, smart lawn and garden systems, and smart appliances can all drive up the value of your property.

Mobile homes weigh anywhere between 45 to 50 pounds per square foot. Some newer options weigh up to 70 pounds per square foot. An average single-wide mobile home weighs 45,000 pounds, and a double-wide mobile home weighs about 70,000 pounds. Triple-wide mobile homes range from 90,000 to 100,000 pounds.

Installing a flagpole can improve your home’s curb appeal, so it will often have a modest positive impact on your property value. You’ll see a much larger bump in property value if you install a custom wooden flagpole than you would if you install a standard aluminum pole. Adding lighting to your flagpole will also have a positive impact on home value, as will trimming trees away from the new lawn addition.

The Diamond Bar, CA homeowners’ guide to property appraisals

From average costs to expert advice, get all the answers you need to get your job done.