House Extensions · TW11 Teddington
Fixed-fee house extension drawings for Teddington, Bushy Park fringe, Fulwell, Hampton Wick fringe in the TW11 postcode, drawn by an MCIAT-chartered architectural technologist and submitted to Richmond Council. Richmond upon Thames applies careful householder control across Teddington, with conservation interest around Teddington Lock and the setting of Bushy Park.
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.
House extensions in Teddington are dominated by single-storey rear and side-return additions on TW11's edwardian and victorian terraces and inter-war semis, with double-storey and wrap-around schemes where the plot allows. Richmond Council weighs depth, height and neighbour daylight; many extensions across Teddington, Bushy Park fringe, Fulwell, Hampton Wick fringe are Permitted Development, which we confirm with a Lawful Development Certificate before you build.
The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical phase, ideal for edwardian and victorian terraces and inter-war semis typical of Teddington.
Across Teddington, Bushy Park fringe, Fulwell, Hampton Wick fringe in TW11, the dominant property is edwardian and victorian terraces and inter-war semis around teddington, with larger houses toward bushy park. That stock shapes what house extension drawings looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Richmond Council judges each on design quality and neighbour impact. We survey the specific Teddington property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the TW11 streetscape.
Housing stock in TW11: Edwardian and Victorian terraces and inter-war semis around Teddington, with larger houses toward Bushy Park.
Within the district: Teddington, Bushy Park fringe, Fulwell, Hampton Wick fringe.
Streets we know in TW11: the Broom Road and Kingston Road area, the streets around Teddington Lock and the Stanley Road terraces. Each road has its own building line, boundary treatment and precedent that Richmond Council weighs when assessing a house extension drawings scheme.
Conservation areas: Teddington Lock, Kingston Road / Broad Street fringe. Inside these, most external work needs full planning and a Heritage Statement.
Getting around TW11: Teddington and Hampton Wick on South Western Railway.
Property values: around £400,000 for a flat and £750,000-£1.3m for a house — a useful gauge of the build value an extension or loft adds in TW11.
Borough character: Highest conservation area coverage in London; Royal Parks and Thames corridor add heritage layers; design quality heavily scrutinised.
Measured existing survey, photographic record, Article 4 and conservation check specific to Teddington before we quote.
2–3 design options at concept stage — alternative layouts, glazing, roof forms.
Site location plan, existing and proposed plans, elevations, sections, D&AS where required.
Part L thermal, Part B fire, Part M accessibility, structural strategy.
Steel beam, foundation, lintel design. Chartered engineer sign-off.
Party Wall notices where needed; Thames Water Build Over Agreement where within 3m of a public sewer.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.
Yes. The Edwardian and Victorian terraces and inter-war semis around Teddington suit side-return, rear and loft extensions, much of it within Permitted Development outside the conservation areas, confirmed with a Lawful Development Certificate. We confirm the route and draw to Richmond's checklist.
Yes — conservation interest around Teddington Lock and the setting of Bushy Park mean those properties are assessed more carefully on roofline and visibility. We design sympathetically and handle the Richmond application where full planning is needed.
Usually yes outside the conservation areas — a rear dormer or hip-to-gable within the volume allowance, confirmed by a Lawful Development Certificate. We check the head height and any local constraint, then draw the scheme for Building Control too.
With TW11 houses around £750,000-£1.3m and fast trains to Waterloo, a side-return, rear or loft extension adds family space worth comfortably above the build and drawing cost. Teddington is a settled, sought-after family market, and our fixed fee keeps the professional cost predictable.
Our fixed fee for house extension drawings in Teddington starts at £1,225 — no hourly billing. With Teddington property at around £400,000 for a flat and £750,000-£1.3m for a house, the professional drawing fee is a small fraction of the value the work adds to TW11's edwardian and victorian terraces and inter-war semis. Richmond Council charges its own statutory application fee on top (currently £258 for a householder planning application, £578 for a full application). We quote the drawings as one fixed price and the free site survey covers every TW11 address.
For a TW11 project across Teddington, Bushy Park fringe, Fulwell, Hampton Wick fringe, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Richmond Council (8 weeks for a householder application). We carry the Teddington application through every officer query to the decision.
Teddington (TW11) sits primarily in Richmond upon Thames, so applications are decided by Richmond Council. Article 4 in force in the borough: No. Conservation areas within TW11 include Teddington Lock, Kingston Road / Broad Street fringe, where full planning and a Heritage Statement are required. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind house extension drawings in Teddington — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Richmond Council Building Control or an approved inspector. On TW11's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. With Teddington (TW11) property at around £400,000 for a flat and £750,000-£1.3m for a house, a well-designed extension or loft typically returns more than it costs in added floor area and sale value, while our fixed drawing fee from £1,225 keeps the professional cost predictable. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on TW11 homes.
From £840.
From £840.
From £1,225.
From £1,575.
From £995.
From £1,950.
From £350.
From £540.
From £450.
From £1,225.
Pick a slot that suits you. No obligation and no sales pressure — just straight answers on your planning route, fixed fee and timescale.
Every TW11 postcode district we draw in, the stock that dominates it and the authority that validates a house extension there. TW11 fees below are the statutory England rates for 2026, not house extension estimates.
| Postcode | Area | Dominant stock | What it means for a house extension |
|---|---|---|---|
| TW11 | Teddington | Edwardian villas, Victorian terraces | TW11 covers Teddington only; Richmond Council handles the house extension, and Teddington case officers apply the TW11 conservation-area map. |
| SW13 | Barnes | Georgian villas, Edwardian terraces | Adjoining district to TW11, also inside Richmond upon Thames for house extension purposes. |
| SW14 | Mortlake / East Sheen | Edwardian villas, 1930s semi-detached | Adjoining district to TW11, also inside Richmond upon Thames for house extension purposes. |
| TW1 | Twickenham | Georgian fragments, Victorian terraces, Edwardian villas | Adjoining district to TW11, also inside Richmond upon Thames for house extension purposes. |
| TW2 | Twickenham / Whitton | Georgian fragments, Victorian terraces, Edwardian villas | Adjoining district to TW11, also inside Richmond upon Thames for house extension purposes. |
Roof pitch, wall build-up and plot depth change every few TW11 streets, and each one changes what a house extension can achieve at that address.
How designation changes a TW11 (Teddington) house extension: Richmond Council maintains 72 conservation areas, including Hampton Wick, Twickenham Riverside, Barnes Village. Inside any of them a TW11 (Teddington) house extension 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. Ham Common sets the tone for TW11 (Teddington) casework.
No blanket Article 4 over TW11 (Teddington): Richmond Council has not withdrawn permitted development across TW11 (Teddington), so a house extension outside a TW11 (Teddington) conservation area usually keeps it. The £129 Lawful Development Certificate is still the document a TW11 owner wants on file.
TW11 (Teddington) housing stock: 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. Read that before choosing a house extension route in TW11 (Teddington) — construction, not postcode, sets what is achievable. House extensions in TW11 (Teddington) start at £1,225 on a fixed fee, or £1,750 for the Complete package covering both Richmond Council submissions.
Sources for this TW11 house extension 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.
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