Fixed-fee planning, building regulations, loft, extension and mansard drawings for properties in Barnes (SW13). MCIAT chartered. 30% below typical London architect rates.
MCIAT chartered drawings for planning, building regs, lofts and extensions — fixed fees 30% below typical London architects. Tell us what you need and we’ll reply the same working day.
Barnes is Georgian and Edwardian village. The streetscape is dominated by georgian villas, edwardian terraces, which means design decisions — roofscape, rear glazing, side returns, mansards — must respect the period rhythm of the row. Richmond upon Thames planning (Richmond Council) decides applications here. Most permitted development rights apply normally in Richmond 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 £540. Measured building survey 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.
Barnes sits within Richmond upon Thames, so applications are decided by Richmond Council. Most single-storey rear extensions and side-returns on terraced or semi-detached homes in Barnes 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.
Barnes is characterised by Georgian and Edwardian village. The dominant stock is Georgian villas, Edwardian terraces. 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.
Richmond 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 Richmond upon Thames.
Loft conversion drawings in Barnes 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.
Richmond upon Thames has 72 designated conservation areas. Nearest to Barnes: Richmond Green. 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.
Pick a slot that suits you. No obligation and no sales pressure — just straight answers on your planning route, fixed fee and timescale.
Every Barnes postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. Barnes fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| SW13 | Barnes | Georgian villas, Edwardian terraces | A drawing package at an SW13 address in Barnes is determined by Richmond Council under its own Local Plan policies for Barnes. |
| TW9 | Richmond | Georgian terraces, Victorian villas | Neighbouring Richmond, where drawing package work is handled by the same Richmond Council case officers. |
| TW1 | Twickenham | Georgian fragments, Victorian terraces, Edwardian villas | Neighbouring Twickenham, where drawing package work is handled by the same Richmond Council case officers. |
| TW9 | Kew | Georgian and Edwardian villas | Neighbouring Kew, where drawing package work is handled by the same Richmond Council case officers. |
| SW14 | East Sheen | Edwardian villas, 1930s semi-detached | Neighbouring East Sheen, where drawing package work is handled by the same Richmond Council case officers. |
| TW11 | Teddington | Edwardian villas, Victorian terraces | Neighbouring Teddington, where drawing package work is handled by the same Richmond Council case officers. |
| TW12 | Hampton | Georgian villas, Edwardian terraces, 1930s semi-detached | Neighbouring Hampton, where drawing package work is handled by the same Richmond Council case officers. |
| TW2 | Whitton | 1930s semi-detached | Neighbouring Whitton, where drawing package work is handled by the same Richmond Council case officers. |
| TW10 | Ham | Georgian villas, post-war estates | Neighbouring Ham, where drawing package work is handled by the same Richmond Council case officers. |
| SW14 | Mortlake | Victorian and Edwardian terraces | Neighbouring Mortlake, where drawing package work is handled by the same Richmond Council case officers. |
Roof pitch, wall build-up and plot depth change every few Barnes streets, and each one changes what a drawing package can achieve at that address.
How designation changes a Barnes drawing package: Richmond Council maintains 72 conservation areas, including Hampton Wick, Twickenham Riverside, Barnes Village. Inside any of them a Barnes drawing package cannot rely on permitted development, and the route becomes a £258 householder application determined in 8 weeks rather than a £120 prior approval in 6 weeks. Richmond Green sets the tone for Barnes casework.
Article 4 and your Barnes drawing package: Richmond Council has made no borough-wide direction, so permitted development for a drawing package in Barnes generally survives outside Barnes conservation areas and listed curtilages. A Lawful Development Certificate at £129 is how a SW13 owner records that a drawing package was lawful.
What Barnes is built from: Georgian in Richmond Green and Twickenham; Edwardian villas in Barnes and East Sheen; 1930s semi-detached in Whitton; riverside cottages along the Thames. Highest conservation area coverage in London; Royal Parks and Thames corridor add heritage layers; design quality heavily scrutinised. That mix decides the drawing package route in Barnes more than the postcode does. Our fixed fee for architectural drawings in Barnes starts at £840, against £1,750 for the Complete package that carries a Barnes scheme through Richmond Council planning and building regulations together.
Sources for this Barnes drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
Fixed fee. MCIAT chartered. 98% first-time approval rate.
Start free quoteOr contact us about your project firstBefore you commit, it is worth understanding what it costs and seeing why homeowners choose us. You can search the site to find the right fit, or set up your account to track your project. When you are ready, get a quote for your project — most homeowners have a fee in minutes — or contact us and a chartered technologist will be in touch.