Architects in West Hampstead

West Hampstead is one Camden locality but not one planning designation. The address and red-line site select Camden records; the neighbourhood-plan and conservation maps then show whether local policy or heritage evidence applies. Save those results before relying on a nearby consent or old sales description.

The adopted policy hierarchy matters. Camden’s 2017 Local Plan remains current while the proposed replacement is examined. Inside its map, the 2015 Fortune Green and West Hampstead Neighbourhood Plan also forms part of the development plan. Outside that boundary, its policies do not acquire force because an address is marketed as West Hampstead.

West End Green and South Hampstead need separate map checks. The West End Green appraisal’s topography and character analysis can inform a mapped proposal, but a contour description is not a level survey and its Article 4 recommendation is not an operative direction. South Hampstead’s 2026 direction has its own mapped properties and operations.

Property type changes the route. A qualifying house may have Part 1 rights if every test is met; a flat or building containing flats cannot use those householder rights. A lease can require written landlord consent, but the exact covenant, demise and retained structure decide that question rather than an assumption that every flat needs the same Licence to Alter package. Planning permission or Building Regulations approval does not replace landlord consent where the executed lease requires it.

For building work to an existing residential building, higher-risk-building status depends on the statutory building, use, height and storey tests. A residential building needs at least two residential units and either at least 18 metres or at least seven storeys, subject to the statutory method and exclusions. Appearance or the phrase “mansion block” is not enough. The BSR oversees work in its higher-risk-building regime; non-higher-risk buildings use a separate building-control route, and the statutory work categories and exemptions still need checking.

Party Wall duties follow defined work at the line of junction, work to a party wall or structure, or qualifying excavation. Within 3 metres, excavation is caught only where it goes below the adjoining foundations; within 6 metres, the separate test uses the statutory 45-degree line. Planning permission and a neighbour’s informal support do not replace the Act where it applies. A party-wall award follows dissent or a deemed dispute; it is not required merely because work is notifiable where valid written consent is given.

A new or extended basement needs a site- and proposal-specific Basement Impact Assessment addressing drainage, flooding, groundwater and structural stability; the technical scope varies with the development.

TPO consent is separate from the conservation-area Section 211 notice route. In a conservation area, work to a tree over 75 mm trunk diameter measured at 1.5 metres normally requires six weeks’ notice, subject to applicable exemptions.

For privacy, Camden’s Amenity CPG describes 18 metres between directly facing habitable-room windows as good-practice guidance assuming level topography; it is not automatic and is not a pass or refusal.

The adopted neighbourhood plan supplies mapped rail corridors and refers to three West Hampstead stations. That is area context only. Where work actually adjoins railway land, identify the infrastructure owner and title or access interface; it does not establish a universal Network Rail or TfL consent, acoustic report or construction management plan.