Building Owner
The owner carrying out the proposed works.
100+ five-star reviews · FPWS & RPSA members · London & the Home Counties
100+ five-star reviews · FPWS & RPSA members · London & the Home Counties
Agreed Surveyor
One impartial surveyor, appointed by both owners. We provide a straightforward Party Wall Award service with a clear fixed fee agreed upfront.
Fixed fee £799 + VAT.
Has your neighbour already appointed their own surveyor?
If they have, the Agreed Surveyor route is no longer the appropriate route and you’ll normally need your own Building Owner Surveyor.
See Building Owner Surveyor
The one-surveyor route
When a dispute arises under the Party Wall etc. Act 1996, the owners can either each appoint their own surveyor or agree upon a single surveyor to act as the Agreed Surveyor.
The Agreed Surveyor’s role is different from acting solely for a Building Owner or Adjoining Owner.
They are appointed by both owners and must act impartially in dealing with the matters arising under the Act.
This can provide a straightforward route where both neighbours are comfortable using the same experienced Party Wall Surveyor.
An Agreed Surveyor can be used for
The Award
Where an Agreed Surveyor is appointed following a statutory dispute, they prepare an Award determining the relevant Party Wall matters impartially for both owners.
The relationship
Building Owner
The owner carrying out the proposed works.
Agreed Surveyor
The single Party Wall Surveyor appointed by both owners to act impartially under the Act.
Appointed by both owners
Adjoining Owner
The neighbouring owner affected by the notifiable works.
The Agreed Surveyor isn’t the Building Owner’s representative.
Once appointed as Agreed Surveyor, their role is to exercise their statutory functions impartially and deal with the relevant matters arising between the owners under the Act.
Our role
We review the relevant Party Wall Notices, architectural drawings and structural information to understand the works and the matters requiring determination under the Act.
As Agreed Surveyor, we do not act as an advocate for either neighbour. We consider the matters arising under the Act impartially.
Where appropriate, a Schedule of Condition can be prepared before the notifiable works commence, providing a written and photographic record of the adjoining property.
We prepare the Award setting out the relevant works and appropriate provisions governing how the notifiable works are carried out.
If a matter within the scope of the Act arises during the works, the Agreed Surveyor remains the appointed surveyor for the Party Wall matter.
Considering this route
Rather than each owner appointing a separate surveyor, both owners agree upon the same Party Wall Surveyor.
Communication and preparation of the Award are handled through one appointed surveyor rather than requiring agreement between two separate surveyors.
Where Christopher Anthony Surveyors is appointed as Agreed Surveyor, our fee is agreed in advance.
The Agreed Surveyor is not appointed to favour either owner. Their role is to deal with the matters arising under the Act impartially.
The Agreed Surveyor route requires both owners to agree upon the same surveyor.
An Adjoining Owner is not required to accept the Building Owner’s suggested surveyor as Agreed Surveyor. They remain entitled to appoint their own Party Wall Surveyor if they prefer.
What happens if they appoint their own surveyor?What happens next
One surveyor managing the Party Wall process for both owners.
Party Wall Notice
The appropriate Notice is served on the Adjoining Owner for the proposed works.
The Adjoining Owner responds
If the Adjoining Owner does not consent to the works but is comfortable using the same surveyor, both owners can appoint that person as Agreed Surveyor.
Both owners appoint the Agreed Surveyor
The appointment must be made by both owners before the surveyor acts in that statutory capacity.
Project information is reviewed
We review the Notices, drawings, structural information and any other relevant details.
Schedule of Condition
Where appropriate, we inspect the adjoining property and prepare a written and photographic Schedule of Condition.
Party Wall Award
The Agreed Surveyor prepares and serves the Party Wall Award dealing with the relevant matters under the Act.
Works proceed
The Building Owner can proceed in accordance with the Award and applicable statutory requirements.
Fees
Know our fee before we start.
Agreed Surveyor
£799 + VAT
Our fixed fee for acting as Agreed Surveyor on a standard residential first Award, including our standard Schedule of Condition service where access and the agreed inspection scope permit. More complex or non-standard matters may require an individual quotation, agreed with you before additional work is undertaken.
Additional Awards
£499 + VAT each
Where additional Adjoining Owners require separate Awards.
Who pays the Agreed Surveyor’s fee?
For typical works undertaken solely for the Building Owner’s benefit, the Building Owner will normally be responsible for the reasonable costs arising from the Party Wall process. The precise position depends on the circumstances.
Getting started
If a Notice has already been served and you are considering the Agreed Surveyor route, send us what you already have.
A copy of the Notice served on the Adjoining Owner.
Any response or correspondence received from them.
The proposed plans for the project.
Relevant structural drawings and calculations where available.
Don’t have everything yet? That’s fine. Send us what you have and we’ll tell you what’s required next.
How we work
Depending on the location and nature of the project, Tony Neilson MFPWS MRPSA or Chris Jack MFPWS MPTS will act as the appointed surveyor.
Whichever surveyor is appointed, they remain the direct point of contact throughout the Party Wall process.
And because , their role is to act impartially — not to represent whichever owner contacted Christopher Anthony Surveyors first.
Frequently asked questions
Yes. An Agreed Surveyor is appointed by both owners. The Adjoining Owner does not have to accept a surveyor proposed by the Building Owner and may appoint their own surveyor instead.
No. Although the Building Owner may have initially contacted or suggested the surveyor, once appointed as Agreed Surveyor the surveyor acts in that statutory role for both owners and must act impartially.
Using one surveyor means there is only one appointed surveyor dealing with the Award rather than two separately appointed surveyors. However, the appropriate route is determined by the owners’ appointments rather than simply by cost, and an Adjoining Owner remains entitled to appoint their own surveyor.
Potentially, yes. Serving the Notice for the Building Owner does not in itself prevent a surveyor subsequently being agreed upon by both owners. The Adjoining Owner must be comfortable appointing that surveyor as Agreed Surveyor.
Where a Schedule of Condition is appropriate, access will be arranged with the Adjoining Owner so the property’s condition can be recorded before the works.
They can appoint their own surveyor. Christopher Anthony Surveyors can then act for the Building Owner under the Building Owner Surveyor route instead.
No. The Agreed Surveyor does not warrant or certify the structural engineer’s design. Structural design remains the responsibility of the appropriate project professionals.
If a matter arises that falls within the surveyor’s statutory jurisdiction, the appointed Agreed Surveyor can deal with it under the Party Wall process.
If you and your neighbour are comfortable appointing the same Party Wall Surveyor, send us the project information and we’ll explain the Agreed Surveyor process and confirm our fixed fee.
Your neighbour remains free to appoint their own Party Wall Surveyor if they would prefer the two-surveyor procedure.
Practical guidance from our Party Wall Surveyors to help you understand the process and your options.
Received a Notice
Consent or dissent? Understand how the two responses differ, when an Award may be appropriate and where a Schedule of Condition fits in.
Read guide: Consent or Dissent? How to DecideCosts & Surveyors
What the whole Party Wall process costs, from £70 if your neighbour consents, and the cost most quotes leave out.
Read guide: How Much Does a Party Wall Surveyor Cost in 2026?
The Party Wall Act
Learn what a Party Wall Award contains and how it provides a framework for notifiable building work.
Read guide: What Is a Party Wall Award and What Does It Cover?