Two-storey extension drawings for Childwall homes — bedroom above, living space below, drawn against the 3-metre projection and 7-metre boundary rules and to Liverpool City Council's design guidance, delivered in days and revised free until your decision.
Liverpool City Council granted 88% of the householder planning decisions it made in its latest published year — 1 point above the 87% England-wide householder average. Hip-to-gable and rear-dormer schemes on paired 1930s semis are judged on roof bulk and the symmetry of the pair, which is where a policy-literate drawing pack earns its keep. Its dominant interwar (1918–1939) and postwar (1945–1970) housing stock sets the design brief on most streets.
Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which Liverpool City Council needs a full application. In conservation areas such as Childwall (All Saints) and Woolton Village those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Childwall is determined against an 8-week statutory target.
Childwall Village (historic sandstone church core and cottages forming a small conservation area), Childwall Fiveways (1930s semis on wide arterial roads around the junction), Score Lane (interwar semis and detached houses on generous plots), Woolton Road (larger detached houses on tree-lined suburban streets), Bowring Park fringe (interwar and postwar housing near the park and golf course) and Well Lane (mixed interwar and modern suburban homes) — these are the Childwall pockets our drawings cover most. Heritage designations here include Childwall (All Saints) and Woolton Village. Liverpool City Council weighs each proposal against Liverpool Local Plan (2022) and relevant SPDs, where generous suburban plots make front boundary treatment and building-line consistency a key test. On roofs the borough is hipped roofs on the interwar semis and gabled roofs on the detached stock, over 1930s Metroland semi-detached houses, larger interwar detached homes and postwar and modern suburban housing.
Adding at first floor changes the question the case officer asks. A single-storey extension is judged mostly on daylight and garden loss; a two-storey extension is judged on overlooking, bulk against the neighbouring roofline, and whether it reads as part of the house or bolted onto it. Childwall is largely 1930s Metroland semi-detached houses, larger interwar detached homes and postwar and modern suburban housing, and hipped roofs on the interwar semis and gabled roofs on the detached stock set what a matching roof actually means here.
The permitted-development route exists but is narrow: 3 metres of rear projection, a 7-metre stand-off from the rear boundary, eaves and ridge no higher than the original, and side-facing upper windows obscure-glazed and non-opening below 1.7 metres above floor level. Most two-storey schemes fail one of those, usually the 7-metre boundary rule on a shorter garden, and go in as a full application instead. We establish which route applies before designing, because it changes the drawing set.
Hip-to-gable and rear-dormer schemes on paired 1930s semis are judged on roof bulk and the symmetry of the pair. Childwall sits outside Liverpool's HMO Article 4 wards, so householder permitted-development rights broadly apply, subject to the usual conservation-area removals around the historic All Saints church core.
Some two-storey rear extensions are permitted development. You will need a full application to Liverpool City Council if any of these apply:
We set the projection and boundary distance on the site plan, prove the roof-pitch match on the elevations, and specify obscure glazing on the side windows — the three things Liverpool City Council checks first — then submit a validation-complete pack.
Below is Liverpool City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Childwall grants the large majority of householder applications, with the symmetry of its interwar semi-detached pairs the recurring issue on roof and side schemes. Two-storey schemes attract more neighbour comment than any other householder work, so the overlooking and daylight case has to be made on the drawings.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
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Across Childwall Village, Childwall Fiveways and Score Lane, the schemes that succeed set the first floor back from the ground floor, keep the ridge below the original, and treat the flank wall as blank or obscure-glazed. On 1930s metroland semi-detached houses, matching the eaves line matters more than matching the brick: an extension that carries the existing eaves through reads as original even in a different material.
Generous suburban plots make front boundary treatment and building-line consistency a key test. We draw the 45-degree daylight test from the neighbour's nearest habitable window, show the window positions in section, and set out the steel and foundation implications early — a two-storey extension changes the load path, so the structural design and the planning design have to be developed together rather than in sequence.
We draw two-storey extensions across Childwall. A few of the areas where they come up most often:
Two storey extension drawings for Childwall Village — historic sandstone church core and cottages forming a small conservation area — dimensioned against the 3m and 7m limits and drawn to Liverpool City Council's guidance.
Two storey extension drawings for Childwall Fiveways — 1930s semis on wide arterial roads around the junction — dimensioned against the 3m and 7m limits and drawn to Liverpool City Council's guidance.
Two storey extension drawings for Score Lane — interwar semis and detached houses on generous plots — dimensioned against the 3m and 7m limits and drawn to Liverpool City Council's guidance.
Two storey extension drawings for Woolton Road — larger detached houses on tree-lined suburban streets — dimensioned against the 3m and 7m limits and drawn to Liverpool City Council's guidance.
Two storey extension drawings for Bowring Park fringe — interwar and postwar housing near the park and golf course — dimensioned against the 3m and 7m limits and drawn to Liverpool City Council's guidance.
Two storey extension drawings for Well Lane — mixed interwar and modern suburban homes — dimensioned against the 3m and 7m limits and drawn to Liverpool City Council's guidance.
The first-floor limits are tighter than the ground-floor ones. This is how the common cases compare.
| Scheme | Permitted development? | Deciding limit | What Liverpool City Council checks |
|---|---|---|---|
| Two-storey rear, 3m projection, 7m+ to boundary | Often yes | 3m projection / 7m boundary | Roof match, side-window glazing |
| Two-storey rear, under 7m to boundary | No — full application | Rear-boundary distance | Overlooking, daylight, garden loss |
| Two-storey side extension | No — full application | Side elevation | Gap to boundary, street rhythm |
| Two-storey wraparound | No — full application | Combined footprint | Bulk, massing, neighbour amenity |
| Any two-storey on designated land | No — full application | Designation | Character and appearance |
Limits from the GPDO 2015, Schedule 2, Part 1, Class A — two-storey rear extension conditions.
A fixed process built around how Liverpool City Council validates and decides two-storey applications.
Send us your Childwall postcode and garden depth. We measure the 7-metre boundary rule against your plot, confirm designation status, and score your odds against live Liverpool City Council decisions.
We measure the original rear wall, eaves and ridge heights, garden depth and every neighbouring window that faces the site — the inputs the daylight and overlooking case is built from.
Chartered designers develop the two-storey addition to your brief with the roof and eaves resolved, and we coordinate the load path so the structural scheme and the planning scheme are the same building.
We submit the application, manage validation and case-officer queries, and revise the drawings free until Liverpool City Council issues its decision.
Often, but not always. A two-storey rear extension can be permitted development if it projects no more than 3 metres, sits at least 7 metres from the rear boundary, does not exceed the existing eaves and ridge, and has obscure-glazed non-opening side windows below 1.7 metres. In Childwall, the 7-metre rule is what most commonly forces a full application to Liverpool City Council.
No part of a permitted-development two-storey rear extension may come within 7 metres of the boundary opposite the rear wall of the house. It exists to protect the neighbour behind you from being overlooked at first floor. On shorter Childwall gardens this is decisive, and we measure it on survey before any design work rather than discovering it at validation. Liverpool City Council is the decision-maker.
Not under permitted development — two-storey side extensions always need a full application to Liverpool City Council. They are assessed on the gap to the boundary, whether the street's rhythm of spaces between houses survives, and whether the extension is subordinate to the original. Setting the first floor back from the front building line and down from the ridge is what usually makes the difference. This applies to your Childwall address specifically.
Overlooking is the most common objection, and it is answerable on the drawings. We position habitable-room windows away from neighbouring gardens, obscure-glaze and fix shut anything on the flank below 1.7 metres, and show the sight lines in section. Where the geometry is tight, a rooflight or a high-level window gives the same daylight without the mutual overlooking that draws objections. This applies to your Childwall address specifically. Liverpool City Council is the decision-maker.
Almost certainly. Excavating within 3 metres of a neighbouring structure and building on or up to the boundary both trigger the Party Wall etc. Act 1996, and a two-storey extension usually does both. It is entirely separate from Liverpool City Council's planning decision, so we flag the notice period early and detail the junction on the drawings. This applies to your Childwall address specifically.
Yes. Adding a floor changes the load path from roof to foundation, so beams, padstones and foundation depths all need designing and calculating for building control. Planning and building regulations are separate consents, and the structural set is what building control assesses — we prepare both so the approved scheme is the buildable one. This applies to your Childwall address specifically. Liverpool City Council is the decision-maker.
We quote each Childwall two-storey extension individually, because plot depth, roof form and structural complexity vary house to house, and send a fixed, no-obligation quote within one working day. It covers the drawing pack with free revisions until Liverpool City Council approves. Call 020 7864 7245 to start.
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