100+ five-star reviews · FPWS & RPSA members · London & the Home Counties
Local Party Wall Surveyors
North West London includes a wide range of terraced, semi-detached and detached homes where extensions, loft conversions and alterations to shared walls can require Party Wall procedures.
We provide specialist advice across Harrow, Brent, Wembley, Hendon, Edgware and surrounding neighbourhoods.
Your local surveyor
Your appointed surveyor remains your direct point of contact throughout the Party Wall process.
Tony Neilson
MFPWS · MRPSA
Founder & Director · 20+ years in residential surveying
Harrow-on-the-Hill · Wealdstone · North Harrow · Pinner
The London Borough of Harrow, including Harrow-on-the-Hill, Wealdstone and North Harrow, is largely made up of semi-detached and terraced family homes. Rear extensions, side extensions and loft conversions are the most common projects, and many involve building on or near the boundary or cutting into a shared wall. We explain which Notices apply, serve them correctly on every Adjoining Owner and guide both sides through consent or the Award process.
Wembley · Wembley Park · Willesden · Kensal Green
Brent covers a wide mix of homes, from the terraced streets of Willesden and Kensal Green to the semi-detached houses around Wembley and Wembley Park. Loft conversions, single-storey rear extensions and internal alterations involving steel beams set into a party wall are all typical. Where houses have been converted into flats, a single project can affect several owners, so we take care to identify every Adjoining Owner before any Notice is served.
Hendon · West Hendon · Colindale · Mill Hill
Hendon, within the London Borough of Barnet, has a varied housing stock of interwar semi-detached homes, terraces and detached houses, with nearby Colindale and Mill Hill adding newer developments. Extensions to the rear and side, and loft conversions, are frequently planned. Excavating for new foundations close to a neighbour, or building a wall on the boundary line, can engage the Act, and we advise both Building Owners and their neighbours on what the process involves.
Edgware · Burnt Oak · Canons Park
Edgware and Burnt Oak sit across the Barnet, Harrow and Brent boundaries and include many semi-detached and terraced family houses. Ground-floor extensions, side additions and loft conversions are common, and neighbouring houses are often close enough for foundation work to fall within the Act. We help Building Owners serve the right Notices in good time, and help Adjoining Owners understand what they have received and the options open to them.
Kingsbury · Neasden · Queensbury · Stanmore
We also act across neighbouring parts of North West London, including Kingsbury, Neasden, Queensbury and Stanmore. These areas share much of the same suburban housing character, with semi-detached homes where hip-to-gable lofts, rear extensions and chimney breast removals are popular. Whatever the project, the starting point is the same: we review your drawings, confirm whether the Party Wall Act applies and agree a fixed fee before any Notices are served.
Party Wall Notices
Correct Notices served on every Adjoining Owner.
Find out moreBuilding Owner Surveyor
Acting for you when neighbours appoint their own surveyor.
Find out moreAgreed Surveyor
One impartial surveyor acting for both owners.
Find out moreAdjoining Owner Surveyor
Protecting your property when a neighbour builds.
Find out moreParty Wall Awards
What an Award covers and what it costs.
Find out moreSchedule of Condition
A dated record of neighbouring property.
Find out moreVerified Google reviews from clients across our coverage area.
Send us your project details or Party Wall Notice. We’ll explain the next steps and confirm the appropriate service and fee.
All areas we cover