ARMS: Vert a Mute Swan rousant proper gorged with a Saxon Crown Or in chief a Bar wavy Argent.
CREST: On a Wreath Argent and Vert a Cornucopia fesswise Or replenished with Fruit and Cereals perched thereon an Aylesbury Duck close proper.
SUPPORTERS On either side a Fallow Buck holding in the mouth a Sprig of six Beech Leaves proper and gorged with a Collar dancetty Vert.
BADGE: On an Oval per pale Gules and Sable environed of a Torse Argent and Vert an Aylesbury Duck close holding in the beak a Sprig of six Beech Leaves proper.

Motto 'CONCORDIA PRORSUM' - Forward in harmony.
Granted 1978?.

The Aylesbury Vale District was formed by the amalgamation of the Borough of Aylesbury, the Borough of Buckingham, the Aylesbury Rural District, the Buckingham Rural District, the Wing Rural District and part of the Winslow Rural District.

On the 1st April 2020 the District ceased to exist when it was merged with the County Council and other districts to form a new Buckinghamshire Council unitary authority.

Picture used with permission, do not reproduce.

The green background indicates the fertility of the Vale. The main area is occupied by the traditional White Swan of Buckingham which is common to the arms of the County Council and the Borough of Aylesbury and the Borough of Buckingham. In the two former arms the swan has a gold ducal crown about the neck, with a gold chain attached, though in the Buckingham arms recorded at the Visitations the crown has no chain. In the Aylesbury arms it has no crown, like the County Council's Swan supporter. Here the swan's neck is encircled by the gold Saxon crown from the County crest seen also in red in the arms of Aylesbury. The white wave represents the River Ouse in its course across the District's northerly parts. The whole shield thus indicates this fertile rural area of Buckinghamshire watered mainly by the Ouse.
The colours of the wreath indicate the green of the Vale and the white of the Chiltern chalk. The gold cornucopia denotes the Vale's agriculture and associated industries, on which stands the characteristic Aylesbury Duck from the Aylesbury crest.
The two fallow bucks are like that which supports the arms of the County Council in allusion to the name. The collars in the form of a green 'W' are placed round their necks for difference and suggest the Rural Districts of Wing and Winslow. Each holds in the mouth a sprig of six beech leaves from the tree in the County crest, representing the union of six former Buckinghamshire areas in the District.
The idea of co-operation and progress is expressed in the motto. The word 'CONCORDIA' is part of the motto of the de Rothschild family, and 'PRORSUM' is part of the motto of Aylesbury, suggested by the idea of progress implied in the County motto.

ARMS: Or on a Mount in base with Chalk Outcrops two Beech Trees in fess their interior leaves merging proper a Chief chequy Argent and Sable.
CREST: On a Wreath Or and Gules out of a Circlet per pale Gules and Sable charged with six Plates three being manifest a Mount Vert thereon a Wyvern wings expanded Gules and gorged with a Ducal Coronet Or.
BADGE: On a Bezant environed of a Torse Or and Gules a Mount thereon two Beech Trees as in the arms.

Motto 'FREELY WE SERVE'.
Granted 10th June 1975.

The Chiltern District was formed by the amalgamation of the Chesham Urban District and the Amersham Rural District.

On the 1st April 2020 the District ceased to exist when it was merged with the County Council and other districts to form a new Buckinghamshire Council unitary authority.

Picture used with permission, do not reproduce.

The two beech trees from the arms of the Chesham UDC, with their leaves mingled on a chalky hill, on a gold background, represent two united Chiltern authorities. The chequered pattern from the same arms, is an heraldic reference to the Chess Valley.
The red and gold of the wreath are in the heraldic liveries of the arms of the County Council. The circlet in red and black, is the basis of the County shield, derived from the liveries of the Earls and Dukes of Buckingham. This, like the red and black 'chief' in the arms of the Amersham RDC, bears three white roundels from the arms of the Penn family. The red wyvern of the Drake family, is also taken from the Amersham arms, the gold ducal coronet about its neck refers to the Dukes of Bedford.
The badge repeats the beech trees on the hill from the shield, set on a gold roundel surrounded by a red and gold wreath like that in the crest.
The motto was previously used by the Amersham RDC and is a quotation from 'Paradise Lost', in reference to Milton's residence in the district at Chalfont St. Giles.

ARMS: Per pale Gules and Sable issuant from a plain Base barry wavy of four Argent and Vert a Mount of the last thereon in front of a Beech Tree fourche of two branches Or a White Swan wings inverted and addorsed proper gorged with a Saxon Crown Gold.
CREST: On a Wreath Argent Gules and Sable within a Circlet of four Fleurs-de-Lys three being manifest Gules a Panther issuant guardant Argent semy of Hurts gorged Gules holding between the forepaws a Petasus Gold.
SUPPORTERS: Two Fallow Bucks guardant proper between the antlers of each a Cross formy fitchy Or.

Motto 'CONSILLO ET ANIMIS' - By wisdom and courage.
Granted 17th December 1985.

The South Buckinghamshire District was formed by the amalgamation of the Beaconsfield Urban District and part of the Eton Rural District.

On the 1st April 2020 the District ceased to exist when it was merged with the County Council and other districts to form a new Buckinghamshire Council unitary authority.

Picture by R.Young, Stoke Poges 2001.

The arms are based on those of the former Eton RDC, these indicated the District's situation in Buckinghamshire, mainly in the south near the Thames, and the symbolism is continued in the background of the historic livery colours of the Staffords, Earls and Dukes of Buckingham, whose red and black livery forms the basis of the arms of the County Council. Their White Swan badge, also familiar in the County, stands on a grassy bank by the heraldic river and wears round the neck the Saxon crown from the County crest. Completing the symbolism is an heraldically stylized tree derived from the familiar Buckinghamshire beech in the County crest, the trunk forked to denote the union of two former county districts. The arms therefore identify the South Buckinghamshire District as an amalgamation of most of the former Eton Rural District and the Beaconsfield Urban District.
The crest, is also based largely on that of Eton RDC and composed of emblems denoting several notable families having historical links with the District. The circle of red fleurs-de-lys (Astor, of Cliveden), the white panther spotted with blue (Palmer, of Dorney) wearing a red collar (Desborough, of Taplow)and holding a gold winged helmet (Burnham, of Beaconsfield).
The fallow bucks are an obvious play on the name, as is that in the arms of the County Council, from which they are differenced by showing the heads full-faced. This posture links them with the arms of the Duke of Portland, in which full-faced bucks' heads are included. Between the antlers of each bucks rises the gold cross from the arms of the Bulstrodes of Gerrards Cross as it does between the antlers of a stag's head in the Bulstrode arms. The motto is that of the former Eton RDC.