The Law Offices of John P. McDonnell

The Law Offices of John P. McDonnell has been serving Peninsula property owners for over 20 years with personalized property tax appeal services. We understand that property taxes represent a significant ongoing expense, and we're committed to ensuring you pay only what you legally owe. Our boutique practice allows us to provide individual attention to every client while maintaining the expertise needed for successful appeals. From our Los Altos office, we've helped hundreds of property owners achieve substantial tax savings through strategic appeals and assessment challenges. Our approach combines thorough preparation with practical experience in local assessment practices, ensuring your case receives the focused attention it deserves. We believe in building long-term relationships with clients, providing ongoing guidance and support for their property tax needs.

We provide comprehensive property tax services tailored to each client's specific needs and objectives. Our assessment review process includes detailed analysis of your property's valuation, comparison with recent market sales, and identification of potential grounds for appeal. We handle all aspects of formal appeals, from initial application preparation through hearing representation before local assessment appeals boards. Our services include coordination with qualified appraisers when needed, preparation of supporting documentation, and strategic case presentation. We also provide proactive assessment monitoring, reviewing annual assessment notices and advising on appeal opportunities and timing. For commercial properties, we analyze income and expense data, market conditions, and appropriate valuation methodologies. Additionally, we assist with Proposition 13 compliance issues, change of ownership determinations, and base year value questions. Our ongoing consultation services help clients understand assessment trends and plan for future tax implications of property improvements or transactions.

We begin each case with a detailed consultation to understand your property and review your assessment history. Our team conducts thorough market research, analyzes comparable sales, and inspects your property to identify any factors supporting a reduction. We prepare comprehensive appeal applications with supporting evidence and represent you at all hearings. Throughout the process, we maintain close communication, ensuring you understand each step and potential outcome. Our goal is to achieve the best possible result while minimizing disruption to your routine.

We serve property owners throughout Santa Clara County with primary focus on Los Altos, Palo Alto, Mountain View, Sunnyvale, and surrounding Peninsula communities. Our deep knowledge of local assessment practices, market conditions, and appeals board procedures in these areas provides significant advantages for our clients. We also handle select matters in adjacent counties when appropriate.