Airspace Surveyor in Islington

An airspace development creates new homes by building above an existing roof. In Islington, the work concentrates on the borough’s post-war and 1960s residential blocks and the older mansion blocks that line many of the central streets. Our role covers the existing residents below the development, the schedules of condition that record each flat before construction starts, and the day-to-day liaison through the build.

Airspace Development Across Islington

Islington has one of London's densest residential building stocks. The Georgian and Victorian terraces across Canonbury, Barnsbury, and Highbury are largely conservation-protected and seldom suitable for airspace work, but the post-war and 1960s residential estates across Holloway, Finsbury Park, Pentonville, and Archway carry significant volumes of mid-rise flats where rooftop schemes are viable. Mansion blocks in the more central parts of the borough also occasionally support airspace work where the structure and planning context allow. The combination means most of our work in Islington is rooftop addition on residential blocks rather than upward extension on individual homes.

We specialise in chartered surveying on dense urban sites, and the practice is RICS regulated with over 30 years of combined residential extension and rooftop experience. Schemes typically need daylight and sunlight reports given the tight plot density and impact on neighbouring windows in this borough.

Airspace Developments

As well as providing daylight, sunlight and rights of light advice, our role would be to make contact with the occupants of the existing building to establish any concerns regarding the development. We will work closely with the professional team to identify the initial questions and look at how these can be addressed.

It is our experience that maintaining the same point of contact for the duration of the project offers the existing occupants’ reassurance and continuity.

Services Provided

  • Make initial contact with existing occupants.

  • Attend meetings to discuss any concerns of the existing occupants.

  • Recording Schedules of Condition of the flats below the proposed units.

  • Act as a liaison between the developer and occupants throughout the project.

  • Assist in resolving any issues that may arise such as car parking, site setup etc.

How do we deliver airspace projects in Islington?

On rooftop additions to Islington's residential blocks, the existing occupants liaison role is central. We make initial contact with each leaseholder below the proposed units, attend meetings to discuss concerns, prepare Schedules of Condition for the flats directly below the new units, and act as the named point of contact through construction. Day-to-day issues, scaffolding placement on narrow streets, deliveries, parking restrictions, access, and noise, get handled as they arise.

Where airspace work involves a homeowner adding a storey to a smaller property in the borough, the focus shifts to the Party Wall etc. Act 1996, neighbour relations, and protection of the existing structure. Party wall services are nearly always triggered given Islington's dense building pattern.

Airspace work in Islington typically sits alongside daylight and sunlight, rights of light, and party wall workstreams on the same scheme. The same surveyor stays on the project from instruction to handover.

Over the past four years, CHP have worked very successfully with us in their capacity as party wall surveyors. Through his calm, sensible approach and excellent communication skills James Crowley, in particular, gained the trust and confidence of the entire team and stakeholders. Looking forward to working with CHP again.”

- Clare Goggin, Jackson Coles

What does a successful airspace project look like in Islington?

A well-run airspace project in Islington finishes on programme with no damage claims from the residents below, no late objections from neighbours, and existing occupants who feel they were kept in the loop throughout. The Schedule of Condition is the single most useful protection because it removes most of the damage argument before it starts.

Planning sits with the London Borough of Islington, which reviews airspace proposals on design, height, neighbour amenity, parking, and area character. Conservation areas across Canonbury, Barnsbury, Highbury, and the central core add a heritage layer to many sites. Specialist airspace development advice covers feasibility and the most likely planning route on a given site.

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Head Office
2-6 Boundary Row
London, SE1 8HP

Essex Office
2-6 Boundary Row
London, SE1 8HP


020 3714 4090

Get in touch.

Head Office
2-6 Boundary Row
London, SE1 8HP

Essex Office
2nd Floor, 10 High Street
Wickford, Essex
SS12 9AZ


020 3714 4090
enquiries@chpsurveyors.com