Fixed-fee planning, building regulations, loft, extension and mansard drawings for properties in Coombe (KT2, KT3). MCIAT chartered. 30% below typical London architect rates.
Coombe is 1930s detached and large semi-detached. The streetscape is dominated by 1930s detached, edwardian villas, which means design decisions — roofscape, rear glazing, side returns, mansards — must respect the period rhythm of the row. Kingston upon Thames planning (Kingston Council) decides applications here. Most permitted development rights apply normally in Kingston upon Thames for residential extensions.
From £840. Planning permission drawings delivered by an MCIAT chartered team.
From £840. Building regulations drawings delivered by an MCIAT chartered team.
From £1,225. Loft conversion drawings delivered by an MCIAT chartered team.
From £1,225. House extension drawings delivered by an MCIAT chartered team.
From £1,575. Mansard roof extensions delivered by an MCIAT chartered team.
From £995. Garage conversion drawings delivered by an MCIAT chartered team.
From £1,950. Basement conversion drawings delivered by an MCIAT chartered team.
From £350. Structural calculations delivered by an MCIAT chartered team.
From £450. Party wall services delivered by an MCIAT chartered team.
From £1,225. Rear dormer drawings delivered by an MCIAT chartered team.
Coombe sits within Kingston upon Thames, so applications are decided by Kingston Council. Most single-storey rear extensions and side-returns on terraced or semi-detached homes in Coombe fall under Permitted Development — up to 3m deep (attached) or 4m (detached), under 4m high. Flats, listed buildings and conservation areas always require full planning. Article 4 status here: No. We check eligibility free at the site visit.
Coombe is characterised by 1930s detached and large semi-detached. The dominant stock is 1930s detached, Edwardian villas. We've drawn extensions and lofts for every period represented here — Victorian rear additions, Edwardian side returns, 1930s wrap-arounds, and contemporary infill where the streetscape allows.
Kingston Council statutory determination is 8 weeks for householder applications. Validation typically adds 1–2 weeks. From your first call to a decision, expect 12–14 weeks total: 1 week measured survey, 2 weeks design, 1–2 weeks validation, 8 weeks determination. We've achieved a 98% first-time approval rate across Kingston upon Thames.
Loft conversion drawings in Coombe start at £1,225 for planning + building regs combined. Construction cost (separate from drawings) is £45,000–£75,000 for a standard rear dormer on a Victorian or Edwardian terrace, £65,000–£95,000 for a hip-to-gable plus dormer. We quote drawings as a fixed fee — no hourly creep.
Kingston upon Thames has 22 designated conservation areas. Nearest to Coombe: Kingston Old Town. In a conservation area, full planning is required for most external work (including roof additions, rendering, replacement windows). We prepare a Heritage Statement covering the conservation area's character appraisal.
Fixed fee. MCIAT chartered. 98% first-time approval rate.
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