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Welcome to the Town of Stratham, New Hampshire
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Stratham Town Seal

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Assessing Department
Contact TypeContact Information
Assessing Assistant
Assessing Department
10 Bunker Hill Avenue
Stratham, NH 03885
(603) 772-7391 ext 184
(603) 775-0517
Town Assessor Andrea Lewy
Town Assessor Andrea Lewy



The Assessing Department has the responsibility to discover and list all taxable property, maintain accurate ownership information and process all request as pertains to the various programs offered under the laws of the State of New Hampshire.  

All responsibilities and functions of the Assessing Department are based upon fair and equitable administration of the New Hampshire Constitution and New Hampshire State Statutes governing property assessments. Assessments are determined by following Internationally accepted Mass Appraisal practices.

Assessment records which contain ownership information, sales amount, book & page, current assessment, sketch of the structure, interior and exterior data and acreage, along with a photo of the property are available at town hall through the use of a public computer terminal located next to the Assessing Department or online.  

If you are a Stratham property owner a copy of your assessment record card is free of charge.  Due to the assessment cards being public information the public may purchase a copy of assessment record cards for a fee of $1.00 each.  Currently the town's digitized tax maps are available at the Assessing Department or on the Assessing website.


Town authority for all property assessment and related issues.

Maintain thorough knowledge of the State of New Hampshire Tax Law.

Administer State Statutes governing taxation.

Perform statistical analysis to monitor market trends and ratio studies.

Review property tax assessments based upon market research and analysis.

Conduct on-site inspections to evaluate property changes due to subdivisions and lot line mergers.

Conduct on-site inspections due to building and demolition permits to determine value change.

Responsible for maintaining and updating town tax maps.

Process tax abatement applications.

Process and maintain current use, conservation easements and conservation restrictions.

Determine market value for land use change tax.

Process and maintain discretionary preservation easements.

Process applications for tax exemption/credit programs. (blind, disabled, elderly, veteran, solar and wind)

Process and update ownership information via deeds and probate documents.

Maintain and update property tax assessment records due to planning and zoning decisions.

Assist other departments and agencies on an as needed basis.

Provide assessment related data to various entities, taxpayers, and the general public.

Respond to taxpayer requests, and provide customer service in person, via email, or over the telephone.