
The full drawing set for a Old Portsmouth application — location and block plans, existing and proposed floor plans, elevations and sections, drawn to Portsmouth City Council's validation checklist so the pack is accepted first time, delivered in days and revised free until your decision, with a free approval-odds check first.
Portsmouth 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. Old Portsmouth is the city's original walled settlement, so alterations are measured against surviving Georgian and pre-Georgian fabric, which is where a policy-literate drawing pack earns its keep. Its dominant Georgian (1714–1837) housing stock sets the design brief on most streets.
Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. Old Portsmouth carries at least one Article 4 direction, and conservation areas including Old Portsmouth and Gunwharf remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Old Portsmouth is determined against an 8-week statutory target.
The Point (cobbled Spice Island lanes of historic cottages by the harbour mouth), High Street (Georgian town houses around the Cathedral), Broad Street (the narrow spine down to the Round Tower and Point), Grand Parade (formal Georgian frontages beside the fortifications), Gunwharf (the former ordnance yard, now waterfront apartments and quays) and Old Portsmouth Ramparts (houses set against the Hotwalls and sea defences) — these are the Old Portsmouth pockets our drawings cover most. Heritage designations here include Old Portsmouth and Gunwharf. Portsmouth City Council weighs each proposal against the Portsmouth Local Plan and the council's Houses in Multiple Occupation SPD, where the tight historic street pattern leaves almost no room to extend outward, concentrating change on roofs and rear yards. Much of Gunwharf and parts of the old town are flats and apartment conversions, which carry no householder permitted-development rights.. On roofs the borough is pitched tile and slate roofs on the town houses and parapet roofs on the taller Georgian frontages, over Georgian and Georgian-revival town houses, historic cottages around The Point and waterfront apartment conversions.
Whatever you are building, Portsmouth City Council decides it from the same core set. A location plan at 1:1250 fixes the site on the map with the red-line boundary; a block plan at 1:500 shows the property in its plot; then existing and proposed floor plans and elevations at 1:100 or 1:50 show the house as it is and as it will be. Larger schemes add a section and, where policy requires, a design and access statement. Miss one and the application is returned invalid before an officer has looked at it.
The drawings are also the argument. Portsmouth City Council assesses each proposal against the Portsmouth Local Plan and the council's Houses in Multiple Occupation SPD, and the elevations are where the case is won or lost — ridge and eaves heights, window positions, materials and how the change reads from the street. On Old Portsmouth's stock, which runs to Georgian and Georgian-revival town houses, historic cottages around The Point and waterfront apartment conversions, the same scheme is drawn differently to answer the concerns officers raise here. Old Portsmouth is the city's original walled settlement, so alterations are measured against surviving Georgian and pre-Georgian fabric, so the pack is built to pre-empt exactly that.
Where the property sits in a conservation area — Old Portsmouth and Gunwharf among Old Portsmouth's — validation is stricter still, often demanding heritage detail and sometimes additional plans. Portsmouth's city-wide Article 4 direction removes permitted-development rights for small HMO conversions here as well, and in the historic core of Old Portsmouth even minor external works are tightly controlled by conservation-area policy. We confirm the designation before drawing so the pack meets the higher bar first time.

Portsmouth City Council validates against a published checklist before it assesses anything. A typical householder application needs each of these, correctly scaled and labelled:
We draw the complete set — location and block plans, existing and proposed plans, elevations and any section — to Portsmouth City Council's checklist, then lodge it on the Planning Portal, manage validation and answer case-officer queries so the application is decided on its merits, not bounced on a technicality.
Below is Portsmouth City Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Portsmouth approves a healthy share of householder work in Old Portsmouth, but the historic core's Georgian fabric and cramped plots make heritage sensitivity the decisive factor. A complete, correctly scaled pack that answers those concerns on the elevations is validated faster and refused less often than one that leaves them for the officer to raise.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
Tell us about your project and get a fixed, no-obligation quote back within one working day. If you don't need planning permission at all, we'll tell you that too — for free.
Two different things sink an application, and they happen at two different stages. First is validation: a missing block plan, an unscaled elevation, no red line, no north point — Portsmouth City Council returns the whole submission and the clock never starts. Getting the pack right at this stage is purely mechanical, and it is where a lot of self-submitted Old Portsmouth applications lose weeks. We draw to the checklist so this never happens.
Second is the planning judgement itself, once the pack is valid. The tight historic street pattern leaves almost no room to extend outward, concentrating change on roofs and rear yards. Across The Point, High Street and Broad Street the recurring refusals are about scale, overlooking and how the proposal sits against its neighbours — all of which are settled on the drawings. We draw the scheme to answer them before submission rather than after a refusal.

The application pack is the same discipline whatever the project. A few of the Old Portsmouth neighbourhoods and property types we prepare drawings for most often:
Planning drawings for The Point's cobbled Spice Island lanes of historic cottages by the harbour mouth — scaled, validation-ready and drawn to Portsmouth City Council's guidance.
Planning drawings for High Street's Georgian town houses around the Cathedral — scaled, validation-ready and drawn to Portsmouth City Council's guidance.
Planning drawings for Broad Street's the narrow spine down to the Round Tower and Point — scaled, validation-ready and drawn to Portsmouth City Council's guidance.
Planning drawings for Grand Parade's formal Georgian frontages beside the fortifications — scaled, validation-ready and drawn to Portsmouth City Council's guidance.
Planning drawings for Gunwharf's the former ordnance yard, now waterfront apartments and quays — scaled, validation-ready and drawn to Portsmouth City Council's guidance.
Planning drawings for Old Portsmouth Ramparts's houses set against the Hotwalls and sea defences — scaled, validation-ready and drawn to Portsmouth City Council's guidance.
The route decides what Portsmouth City Council needs and how long it takes. This is how the common Old Portsmouth routes compare.
| Route | When it applies | Core drawings | Typical decision |
|---|---|---|---|
| Householder application | Extensions and alterations to a single house | Location, block, existing & proposed plans and elevations | About 8 weeks |
| Full application | Flats, new units, changes of use | As householder plus site plan and often a section | 8–13 weeks |
| Lawful development certificate | Confirming a scheme is permitted development | Existing & proposed plans and elevations to prove PD limits | About 8 weeks |
| Prior approval | Larger single-storey rear extensions | Plans and elevations plus neighbour notification | About 6 weeks |
In a conservation area such as Old Portsmouth and Gunwharf, householder permitted-development rights are often restricted, so a full application and heritage detail may be required.
A fixed process built around how Portsmouth City Council validates and decides — most drawing sets are submission-ready within seven days of survey.
Send us your Old Portsmouth postcode and what you want to build. We confirm your conservation and Article 4 status, tell you which application route applies, and score your odds against live Portsmouth City Council decisions.
We measure the property and plot so the existing plans and elevations are accurate to the millimetre — the base every proposed drawing and every officer judgement is built on.
Chartered designers produce the full validation pack — location and block plans, existing and proposed plans, elevations, any section and a design and access statement — drawn to Portsmouth City Council's checklist.
We lodge the application on the Planning Portal, manage validation and case-officer queries, and revise the drawings free until Portsmouth City Council issues its decision.
Portsmouth City Council validates a householder application against a set list: a location plan at 1:1250 with a red-line boundary, a block plan at 1:500, and existing and proposed floor plans and elevations at 1:100 or 1:50, each with a scale bar and north point. Larger schemes and most conservation-area work also need a design and access statement. If any of these is missing or unscaled the application is returned invalid before it is assessed. This applies to your Old Portsmouth address specifically.
Almost always because the drawing pack is incomplete or wrongly scaled — a missing block plan, an elevation with no scale, no red line on the location plan, no north point. Portsmouth City Council checks the pack against its validation list before an officer ever assesses the scheme, so these purely technical gaps cost weeks. Drawing to the checklist from the outset is the simplest way to avoid a return. This applies to your Old Portsmouth address specifically.
Yes. We prepare the full drawing set, lodge it on the Planning Portal on your behalf, pay the Portsmouth City Council fee where you prefer us to, and then manage validation and case-officer questions through to the decision. You get the reference number and updates without dealing with the portal or the council yourself. This applies to your Old Portsmouth address specifically.
A householder application is a statutory eight weeks from validation, and a full application eight to thirteen weeks depending on scale. The date that matters is validation, not submission — an invalid pack never starts the clock. Because we draw to Portsmouth City Council's checklist the application validates quickly, so the statutory period begins without the delay a returned pack causes. This applies to your Old Portsmouth address specifically.
You do not strictly need a planning application, but scaled existing and proposed drawings are still worth having: a lawful development certificate from Portsmouth City Council proves the scheme is permitted development, which lenders and buyers increasingly ask for, and your builder needs the drawings to price and build. In a conservation area such as Old Portsmouth and Gunwharf, permitted-development rights are often removed, so a full application may be needed after all — we confirm which before you commit.
We price each Old Portsmouth job individually — the scope of the survey and the size of the drawing set vary from a simple rear extension to a whole-house scheme — and send a fixed, no-obligation quote within one working day. It covers the full validation pack with free revisions until Portsmouth City Council decides. The Portsmouth City Council application fee is separate and paid to the council. Call 020 7864 7245 to start.
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Same fixed quotes, same fast drawings — wherever your project is.