Loft Conversions · SW15 Putney
Fixed-fee loft conversion drawings for Putney, West Putney, Roehampton, Putney Heath in the SW15 postcode, drawn by an MCIAT-chartered architectural technologist and submitted to Wandsworth Council. Wandsworth controls the West Putney and Embankment conservation areas; the hillside terraces and inter-war semis are a strong extension market.
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.
A loft conversion in Putney usually takes the form of a rear or L-shaped dormer on SW15's terraced houses, or a hip-to-gable plus dormer on the semi-detached and villa stock. Wandsworth Council assesses roof additions on design and street impact, particularly near Putney Embankment, West Putney, Dover House Estate; we confirm whether your loft is Permitted Development or needs full planning, then handle the drawings, structural calculations and Party Wall notices.
Every loft type across every Putney roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regulations, structural calculations and party wall notices, all fixed price.
Across Putney, West Putney, Roehampton, Putney Heath in SW15, the dominant property is victorian and edwardian terraces near putney centre, inter-war semis up the hill, and large houses and post-war estates around roehampton. That stock shapes what loft conversion drawings looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Wandsworth Council judges each on design quality and neighbour impact. We survey the specific Putney property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the SW15 streetscape.
Housing stock in SW15: Victorian and Edwardian terraces near Putney centre, inter-war semis up the hill, and large houses and post-war estates around Roehampton.
Within the district: Putney, West Putney, Roehampton, Putney Heath.
Streets we know in SW15: the West Putney roads (Howards Lane, Carlton Drive), Putney Hill and the Dover House Estate. Each road has its own building line, boundary treatment and precedent that Wandsworth Council weighs when assessing a loft conversion drawings scheme.
Conservation areas: Putney Embankment, West Putney, Dover House Estate. Inside these, most external work needs full planning and a Heritage Statement.
Getting around SW15: East Putney on the District line and Putney rail to Waterloo, plus the riverbus.
Property values: around £550,000 for a flat and £1.1m-£1.7m for a house — a useful gauge of the build value an extension or loft adds in SW15.
Borough character: Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications.
We confirm before quoting whether your Putney loft has the head height and structural capacity.
Most Putney loft conversions qualify for a Lawful Development Certificate. We check Article 4 and conservation constraints first.
Option studies including massing, internal layout and roof geometry.
Staircase Part K compliance, Part B fire escape, Part L insulation, Part E acoustic separation.
Ridge beam, purlins, steelwork, floor joist upgrade, dormer framing — chartered engineer sign-off.
Almost every Putney loft triggers Party Wall notices. We draft notices and coordinate with surveyors.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.
Yes. The Victorian and Edwardian terraces and inter-war semis around Howards Lane and Carlton Drive suit side-return, rear and double-storey extensions plus loft conversions, much of it within Permitted Development outside the conservation areas. We confirm the route and draw to Wandsworth's validation checklist.
Yes. The Putney Embankment conservation area and the Thames frontage carry both conservation control and flood-risk requirements, so riverside changes need full planning and a flood-risk assessment. We design within those constraints and produce the survey and heritage drawings required for SW15 riverside addresses.
Usually yes on the terraces and semis — a hip-to-gable plus rear dormer within the volume allowance, confirmed by a Lawful Development Certificate, provided you're not in the West Putney or Embankment conservation areas. We check the constraints for your road and draw it for Building Control.
The Dover House (Putney Garden) Estate is a designated conservation area of cottage-style housing with strong character controls, so extensions there are assessed tightly on form and materials. We design sympathetically and submit a full application with a Heritage Statement where required.
Our fixed fee for loft conversion drawings in Putney starts at £1,225 — no hourly billing. With Putney property at around £550,000 for a flat and £1.1m-£1.7m for a house, the professional drawing fee is a small fraction of the value the work adds to SW15's victorian and edwardian terraces near putney centre. Wandsworth 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 SW15 address.
For a SW15 project across Putney, West Putney, Roehampton, Putney Heath, 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 Wandsworth Council (8 weeks for a householder application). We carry the Putney application through every officer query to the decision.
Putney (SW15) sits primarily in Wandsworth, so applications are decided by Wandsworth Council. Article 4 in force in the borough: Yes. Conservation areas within SW15 include Putney Embankment, West Putney, Dover House Estate, 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 loft conversion drawings in Putney — 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 Wandsworth Council Building Control or an approved inspector. On SW15'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 Putney (SW15) property at around £550,000 for a flat and £1.1m-£1.7m 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 SW15 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 SW15 postcode district we draw in, the stock that dominates it and the authority that validates a loft conversion there. SW15 fees below are the statutory England rates for 2026, not loft conversion estimates.
| Postcode | Area | Dominant stock | What it means for a loft conversion |
|---|---|---|---|
| SW15 | Putney / Roehampton | Edwardian terraces, Victorian villas, mansion blocks | Putney / Roehampton sits wholly inside SW15, so Wandsworth Council validates every loft conversion submitted from an SW15 address. |
| SW15 | Putney | Edwardian terraces, Victorian villas, mansion blocks | Putney sits inside SW15; loft conversion proposals here are determined by Wandsworth Council. |
| SW15 | Roehampton | Post-war estates, Georgian villas | Roehampton sits inside SW15; loft conversion proposals here are determined by Wandsworth Council. |
| SW11 | Battersea / Clapham Junction | Victorian terraces, mansion blocks | Adjoining district to SW15, also inside Wandsworth for loft conversion purposes. |
| SW12 | Balham | Victorian and Edwardian terraces | Adjoining district to SW15, also inside Wandsworth for loft conversion purposes. |
| SW17 | Tooting / Earlsfield | Edwardian terraces | Adjoining district to SW15, also inside Wandsworth for loft conversion purposes. |
Roof pitch, wall build-up and plot depth change every few SW15 streets, and each one changes what a loft conversion can achieve at that address.
SW15 (Putney / Roehampton) conservation designations: there are 45 across Wandsworth Council, Clapham Common West, Tonsley, Magdalen Park among them. Designation costs a SW15 (Putney / Roehampton) owner the permitted-development route: a loft conversion then needs a £258 householder application over 8 weeks, in place of the £120 prior approval route that takes 6 weeks. Wandsworth Common is the SW15 (Putney / Roehampton) designation that most often changes a loft conversion design.
What Article 4 removes near SW15 (Putney / Roehampton): Article 4 for HMO conversions covering the whole borough. Before pricing a loft conversion we check whether the SW15 address is inside the mapped area, because Wandsworth Council draws the SW15 (Putney / Roehampton) boundary street by street rather than across the whole of SW15 (Putney / Roehampton).
The building fabric around SW15 (Putney / Roehampton): Extensive Victorian terraced streets — the classic London side-return extension opportunity; Edwardian villas around the commons; 1930s semi-detached in Southfields. Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications. A loft conversion in SW15 (Putney / Roehampton) is scoped against that stock first. Our SW15 (Putney / Roehampton) fixed fee starts at £1,225; the £1,750 Complete package runs the SW15 (Putney / Roehampton) scheme through Wandsworth Council planning and building control in one go.
Sources for this SW15 loft conversion 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.
Free fixed quote in 60 seconds. From £1,225. MCIAT chartered.
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