Party Wall Agreement
Common Law — State Property Codes — Easement Principles
State of [State], County of [County]
This Party Wall Agreement (the "Agreement") is made on [Agreement Date] between:
[First Owner Name], owner of the property at [First Owner Address], [First Owner City], [State] [First Owner Zip] (the "First Owner"); and
[Second Owner Name], owner of the property at [Second Owner Address], [Second Owner City], [State] [Second Owner Zip] (the "Second Owner").
The First Owner and the Second Owner are referred to collectively as the "Parties" and individually as a "Party."
RECITALS
A. The First Owner is the owner of the property located at [First Owner Address], [First Owner City], [State] [First Owner Zip] (the "First Owner's Property").
B. The Second Owner is the owner of the adjoining property located at [Second Owner Address], [Second Owner City], [State] [Second Owner Zip] (the "Second Owner's Property").
C. The First Owner's Property and the Second Owner's Property share a common wall, boundary wall, or boundary line (the "Party Wall").
D. The First Owner proposes to carry out works affecting the Party Wall as described in this Agreement, and the Parties wish to establish their respective rights and obligations in connection with those works.
1. GOVERNING LAW AND PARTY WALL DOCTRINE
1.1 This Agreement is governed by the laws of the State of [State]. The rights and obligations of the Parties with respect to the Party Wall are determined by the common law party wall doctrine, applicable state property codes, and any local building codes and ordinances of [County].
1.2 Under the common law party wall doctrine as recognized in the State of [State], where a wall stands on the boundary between two properties, each owner has an easement of support in the wall. Neither owner may take any action that would impair the structural integrity of the wall or deprive the other owner of the support to which they are entitled.
1.3 This Agreement is supplemental to and does not derogate from any rights the Parties may have under the common law, applicable state statutes, or local ordinances.
2. THE PROPOSED WORKS
2.1 The First Owner proposes to carry out the following works (the "Works") affecting the Party Wall:
[Proposed Works]
2.2 The Works shall be carried out in a competent and workmanlike manner, using proper materials, and in compliance with all applicable building codes, permits, and zoning requirements of the State of [State] and [County].
2.3 The First Owner shall obtain all necessary building permits, inspections, and approvals from the appropriate governmental authorities before commencing the Works. Copies of all permits shall be provided to the Second Owner upon request.
2.4 The First Owner shall not carry out any works other than those described in Section 2.1 without the prior written consent of the Second Owner.
3. RIGHT OF ACCESS
3.1 The Second Owner grants the First Owner and the First Owner's contractors, agents, and engineers reasonable access to the Second Owner's Property at reasonable times and upon not less than 48 hours' written notice (except in cases of emergency) for the purpose of carrying out the Works.
3.2 The First Owner shall ensure that access is limited to what is reasonably necessary for the Works and shall cause the minimum practicable disturbance to the Second Owner and occupants of the Second Owner's Property.
3.3 The First Owner shall repair any damage to the Second Owner's Property caused by such access at the First Owner's sole expense.
4. HOURS OF WORK
4.1 The Works shall be carried out only during the following hours: [Working Hours].
4.2 The First Owner shall ensure that all contractors comply with these restrictions and with any applicable local noise ordinances.
5. DAMAGE AND REPAIR
5.1 The First Owner shall be liable for any damage to the Second Owner's Property caused by the execution of the Works, including but not limited to structural damage, cosmetic damage, water damage, and damage to landscaping or fixtures.
5.2 The First Owner shall, at the First Owner's sole expense, promptly repair and restore any damage caused by the Works to the reasonable satisfaction of the Second Owner.
5.3 Nothing in this Agreement limits the Second Owner's right to seek damages at law or in equity for any loss or damage caused by the Works.
6. COSTS
6.1 [Cost Allocation]
6.2 The First Owner shall bear all costs of any damage repair, restoration, and remediation of the Second Owner's Property arising from the Works.
7. INSURANCE
7.1 [Insurance Requirement]
7.2 The First Owner's liability to the Second Owner for damage caused by the Works is not limited to the amount of any insurance policy.
8. GENERAL PROVISIONS
8.1 This Agreement is binding upon the Parties and their respective heirs, successors, and assigns, and shall run with the land.
8.2 This Agreement constitutes the entire agreement between the Parties with respect to the subject matter hereof and supersedes all prior negotiations, understandings, and agreements.
8.3 This Agreement may not be amended except by a written instrument signed by both Parties.
8.4 Any dispute arising under this Agreement shall be resolved in accordance with the laws of the State of [State] and shall be subject to the jurisdiction of the courts of [County], [State].
8.5 If any provision of this Agreement is held to be invalid or unenforceable, the remaining provisions shall continue in full force and effect.
IN WITNESS WHEREOF, the Parties have executed this Party Wall Agreement as of the date first written above.
FIRST OWNER
Name: [First Owner Name]
Address: [First Owner Address], [First Owner City], [State] [First Owner Zip]
SECOND OWNER
Name: [Second Owner Name]
Address: [Second Owner Address], [Second Owner City], [State] [Second Owner Zip]
First Owner
________________
Signature
Date: ________________
Second Owner
________________
Signature
Date: ________________
What Is a Party Wall Agreement?
A Party Wall Agreement in the United States governs the relationship between the parties by fixing what each must do.
In the United States, the rights and obligations of property owners with respect to party walls are primarily governed by the common law party wall doctrine, which has been recognized by courts in most states since the colonial era. Under the common law doctrine, each owner of a party wall has an easement of support in the wall, meaning that neither owner may take any action that would impair the structural integrity of the wall or deprive the other owner of the support to which they are entitled.
Some states have enacted specific party wall statutes that modify or supplement the common law. New York's Real Property Actions and Proceedings Law Article 11 addresses party walls in the context of real property actions. The District of Columbia has a complete party wall statute (D.C. Code section 45-501 et seq.) that establishes detailed rights and procedures for party wall construction and repair. Many other states address party walls through their general property codes, building codes, and common law precedent.
Local building codes and zoning ordinances may impose additional requirements on works affecting party walls, including permit requirements, structural engineering review, and fire separation standards. It is important to consult applicable local requirements before commencing any work on a party wall.
When Do You Need a Party Wall Agreement?
A Party Wall Agreement is needed whenever one property owner proposes to carry out works that will affect a wall, structure, or boundary shared with an adjoining property. Common situations requiring a party wall agreement include construction of additions or extensions that involve modification of a shared wall; underpinning or strengthening the foundation of a party wall; demolition and rebuilding of a party wall; excavation near the boundary that could affect the stability of the adjoining property; installation of beams, supports, or other structural elements into a party wall; and repair or replacement of a party wall that has deteriorated.
The agreement is also advisable whenever construction work on one property could cause vibration, settlement, or other impacts on the adjoining property, even if the work does not directly involve the party wall itself. For example, pile driving, heavy excavation, or demolition near the boundary line may require a party wall agreement to protect both owners.
The agreement should be executed before the works commence. Both parties should have the opportunity to review the proposed works and negotiate the terms of the agreement. A pre-construction condition survey of the adjoining property should be prepared before the works begin to document the existing condition and provide a baseline for any damage claims.
In states or municipalities with specific party wall statutes or notice requirements, the property owner proposing the works must comply with the statutory procedures in addition to executing the agreement.
What to Include in Your Party Wall Agreement
A complete Party Wall Agreement must address several essential elements to protect both property owners and prevent disputes.
The identification of the parties should include the full legal names of both property owners and the addresses of both properties. The governing law section should identify the applicable state and county, the common law party wall doctrine, and any applicable state party wall statutes or local building codes.
The description of proposed works must be precise and detailed, as it defines the scope of works authorized by the agreement. The first owner should be required to obtain all necessary building permits and provide copies to the second owner.
A pre-construction condition survey of the adjoining property is strongly recommended. The survey should be prepared by a qualified professional and agreed upon by both parties before the works commence.
The right of access clause should specify the notice required (typically 48 hours), the limitations on access, and the obligation to minimize disturbance. Working hours should be clearly stated and should comply with local noise ordinances.
Damage and repair provisions should establish the first owner's liability for all damage caused by the works and the obligation to repair damage at the first owner's sole expense. Cost allocation should clearly state which party bears the costs of the works.
Insurance requirements should specify the minimum coverage amounts and the obligation to provide certificates of insurance. General provisions should address the binding effect on successors and assigns, amendment requirements, dispute resolution, and severability. The forms-legal.com Party Wall Agreement template includes all required provisions for a valid party wall arrangement, including works description, pre-construction survey requirements, access rights, working hours, damage liability, insurance requirements, and cost allocation sections.
Cite this page
Reference this free template in an article, syllabus, or research note:
Forms Legal. (2026). Party Wall Agreement (United States) [Legal document template]. Forms Legal. https://forms-legal.com/usa/real-estate/purchase-sale/party-wall-agreement
"Party Wall Agreement (United States)." Forms Legal, 2026, https://forms-legal.com/usa/real-estate/purchase-sale/party-wall-agreement.
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title = {Party Wall Agreement (United States)},
year = {2026},
howpublished = {\url{https://forms-legal.com/usa/real-estate/purchase-sale/party-wall-agreement}},
note = {Free legal document template. Based on Common Law Party Wall Doctrine}
}Also available for these jurisdictions:
Frequently Asked Questions
A Party Wall Agreement is legally binding in the United States once the parties capable of contracting sign it with the intent to be bound under Common Law Party Wall Doctrine. American contract law, drawn from the Restatement (Second) of Contracts and each state's common law, recognizes a Party Wall Agreement as enforceable when it shows offer, acceptance, consideration, and reasonably definite terms. Courts in the state whose law governs the agreement will hold the parties to its written terms unless a party proves fraud, duress, mistake, unconscionability, or that the subject matter is illegal. A signed Party Wall Agreement carries more evidentiary weight than an oral understanding because the writing fixes what each party promised and reduces later disputes over who agreed to what. To strengthen enforceability, the parties should each keep an original signed copy, date their signatures, and complete every blank rather than leaving terms open to interpretation by a judge.
A Party Wall Agreement in the United States must satisfy the core elements of a valid contract: mutual assent shown by offer and acceptance, consideration exchanged between the parties, the legal capacity of each signer, and a lawful purpose. The relevant framework is Common Law Party Wall Doctrine governs how the document is interpreted and enforced. The writing should clearly identify each party by full legal name, describe the rights and obligations of each side, and state the effective date and any term or expiration. Where one party is a business entity, the person signing should hold authority to bind that entity, such as an officer, manager, or member. Specific states may add formalities for certain agreements, so the parties should confirm local rules before signing. A Party Wall Agreement that omits a material term, leaves the price or duration blank, or fails to identify the parties accurately risks being found too uncertain for a court to enforce.
A Party Wall Agreement should be recorded with the county recorder or land records office where the property sits, even though recording is not always required to transfer title between the parties. Under each state's recording statutes, recording a Party Wall Agreement gives public notice of the transfer and protects the new owner against later claims, liens, or competing buyers who lack notice. An unrecorded deed can still pass title between grantor and grantee, but it leaves the new owner exposed if the grantor conveys the same property again or a creditor records a lien first. To be accepted for recording, a Party Wall Agreement typically must be signed by the grantor, acknowledged before a notary, contain a legal description of the property, and meet the county's formatting and fee requirements. The Statute of Frauds requires conveyances of real property to be in writing, so a Party Wall Agreement that is properly drafted, notarized, and recorded gives the strongest protection of ownership.
A Party Wall Agreement must be signed by the grantor and acknowledged before a notary public in essentially every state, because county recorders will not accept a deed for recording without notarization. The notary's acknowledgment confirms the grantor's identity and that the signature was given voluntarily, which supports the integrity of the public land records. Some states also require one or two witnesses in addition to notarization for a Party Wall Agreement to be recordable, so the parties should confirm local rules before signing. The document must include an accurate legal description of the property — not just a street address — along with the names of the grantor and grantee and words of conveyance. A Party Wall Agreement that lacks proper notarization or a valid legal description may be rejected by the recorder or create gaps in the chain of title that complicate any future sale or refinance of the property.
A Party Wall Agreement can be amended after signing when all parties agree to the change and record it in writing. Under general US contract principles, an amendment is itself a contract, so it needs the same mutual assent and, in many states, fresh consideration or a signed written modification to be enforceable. The cleanest method is a dated amendment or addendum that identifies the original Party Wall Agreement, states exactly which sections change, and is signed by everyone who signed the original. Striking through or handwriting edits on the signed original invites disputes about who approved the change and when, so a separate written amendment is the preferred approach. Where the agreement contains a 'no oral modification' clause, only a signed writing will alter the terms, and informal promises to change the deal will not bind the parties. Keeping each amendment attached to the original Party Wall Agreement preserves a complete record of the parties' final agreement.
A Party Wall Agreement does not require a lawyer in most routine situations, and many individuals and small businesses prepare one using a clear written template that covers the standard terms. American law does not condition the validity of a Party Wall Agreement on attorney involvement; what matters is that the parties understand the terms and sign voluntarily. Legal review becomes worthwhile when the amounts at stake are large, the relationship is complex, the parties are in different states, or the agreement involves unusual conditions, tax consequences, or rights that are difficult to reverse. An attorney can confirm the document complies with the governing state's law and tailor clauses such as indemnification, dispute resolution, and termination. For straightforward matters, a carefully completed Party Wall Agreement from forms-legal.com gives the parties a solid written record; consulting a licensed attorney remains the safer path whenever the consequences of a mistake would be costly or hard to undo.
This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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