Airspace Surveyor in Lambeth

An airspace development adds new homes by building above an existing roof. In Lambeth, the work concentrates on the borough’s post-war and 1960s residential estates alongside the mansion blocks across Brixton, Clapham, and Streatham. 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.

Rooftop Extensions Across Lambeth

Lambeth's residential stock runs heavily to post-war and 1960s estates across Stockwell, Vauxhall, Brixton, Tulse Hill, and West Norwood, with mid-rise mansion blocks scattered through Clapham, Streatham, and the Kennington area. The Victorian and Edwardian terraces across Herne Hill, Clapham North, and parts of Streatham Hill add lower-density stock where upward extensions occasionally come forward. Most of our Lambeth work is rooftop addition on the post-war blocks and mansion blocks, with a smaller volume of upward extensions on the borough's terraced housing.

Specialist chartered surveying on dense urban sites is where most of our airspace work sits, and the practice is RICS regulated with over 30 years of combined experience. Airspace development advice covers feasibility and the planning route before any application is prepared.

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 handle airspace developments in Lambeth?

Project type drives the scope. On rooftop additions to Lambeth's post-war estates and mansion 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, get handled as they arise. On smaller homeowner-led upward extensions across the borough's terraced areas, the focus shifts to the Party Wall etc. Act 1996, neighbour relations, and protection of the existing structure. Party wall services are nearly always involved given Lambeth's dense building pattern.

Airspace work in Lambeth 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 outcomes do well-run airspace schemes achieve in Lambeth?

Strong outcomes from a Lambeth airspace project look the same as anywhere: the build finishes on programme, no damage claims appear from the residents below, no late objections from neighbours, and existing occupants feel they were kept informed 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 Lambeth, which reviews airspace proposals on design, height, neighbour amenity, parking, and area character. Conservation areas across Clapham, Streatham, Brixton, and Herne Hill bring additional heritage considerations into play. Rights of light assessments sit outside the planning process but often run in parallel where new height affects surrounding properties.

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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