Airspace Surveyor in Richmond upon Thames

An airspace development creates new homes by building above an existing roof. Richmond upon Thames sees rooftop schemes for mansion blocks in Richmond and Twickenham alongside upward extensions on the Edwardian and Victorian terraces across the borough. 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.

Adding Storeys Above Richmond upon Thames Buildings

Richmond upon Thames is one of London's most heritage-protected boroughs, with substantial conservation areas across Richmond town centre, Kew, Barnes, Twickenham central, Hampton, Petersham, and Strawberry Hill. The residential stock is dominated by Edwardian and Victorian terraces alongside mansion blocks in Richmond town, Twickenham, and Teddington. Post-war housing accounts for a smaller share of the stock than in most outer London boroughs. The combination means that airspace work focuses heavily on mansion block rooftop schemes and homeowner-led upward extensions on terraces where conservation area protection allows, with the heritage context being the dominant planning consideration on most central sites.

We specialise in chartered surveying on dense urban sites where rooftop and upward extension schemes are most common. The practice is RICS regulated with over 30 years of combined residential extension and rooftop experience. Daylight and sunlight reports almost always form part of the planning submission given the impact of new height on the borough's protected views and neighbouring properties.

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 Richmond upon Thames?

On rooftop additions to mansion blocks in Richmond, Twickenham, and Teddington, 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, deliveries, parking restrictions, access, and noise, get handled as they arise.

On homeowner-led upward extensions across the borough's Edwardian and Victorian terraces in Mortlake, East Sheen, St Margarets, and the parts of the borough outside conservation areas, the focus shifts to the Party Wall etc. Act 1996, neighbour relations, and protection of the existing structure during construction. Party wall services are nearly always involved given the prevalence of shared structures.

Airspace work in Richmond upon Thames 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 planning considerations apply to airspace schemes in Richmond upon Thames?

Heritage considerations dominate the planning context across Richmond upon Thames more than in any other outer London borough. Conservation areas cover Richmond town centre, Kew, Barnes, Twickenham, Hampton, Petersham, Strawberry Hill, and much of the central residential stock. Listed buildings sit across the borough, and protected views from Richmond Park and the Thames affect height assessments on many sites. Airspace work on a central or terraced property is often constrained by heritage policy before any other consideration.

Where airspace work is feasible, the Royal Borough of Richmond upon Thames reviews proposals on design, height, neighbour amenity, parking, and area character. Some upward extensions on detached and semi-detached houses outside conservation areas can proceed under permitted development with prior approval. A free initial assessment covers feasibility and the most likely planning route on a specific site, including the heritage considerations that will apply.

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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